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Configure vsftpd SSL/TLS and Jail for Any User Writing as www-data to Web Server

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<span style="color: red; font-size: large;"><u>Configure vsftpd SSL/TLS and Jail for Any User Writing as www-data to Web Server</u></span><br />
<span style="font-size: large;"><u><br /></u></span>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><a href="http://www.hackthesec.co.in/search/label/vsftp">vsftpd</a>, (or very secure FTP daemon), is an <a href="http://www.hackthesec.co.in/search/label/ftp">FTP</a> server for Unix-like systems, including Linux. It is licensed under the GNU General Public License. It supports IPv6 and SSL.</span></span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj4DuFEKA7uUfUyq3NjeiqEJRsKfjRKEhgoqMczS8lnDImAetVPJDFKrFZBqXmvnIqSTcGW1Eu_1ZXgnxBItoUatI4cACW4RhWhC5mF0e7AkpqaFjbQx4-a7q59cZLWqYOc4HzZXW68ubfU/s1600/vsftpd_hackthesec.co.in.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj4DuFEKA7uUfUyq3NjeiqEJRsKfjRKEhgoqMczS8lnDImAetVPJDFKrFZBqXmvnIqSTcGW1Eu_1ZXgnxBItoUatI4cACW4RhWhC5mF0e7AkpqaFjbQx4-a7q59cZLWqYOc4HzZXW68ubfU/s1600/vsftpd_hackthesec.co.in.png" /></a></div>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">vsftpd supports explicit (since 2.0.0) and implicit (since 2.1.0) FTPS.</span></span><br />
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">vsftpd is the default FTP server in the Ubuntu, CentOS, Fedora, NimbleX, Slackware and RHEL Linux distributions.</span></span><br />
<span style="background-color: white; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;"><b><u><span style="color: #0b5394;">INSTALL VSFTPD</span></u></b></span><br />
<div style="background-color: white; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; margin-bottom: 20px;">
Debian<br /><span class="xtypo_sticky" style="background-attachment: initial; background-clip: initial; background-color: #5c5d5f; background-image: url("/templates/yoo_nano3/css/assets/shadow.png"); background-origin: initial; background-position: 50% 100%; background-repeat: repeat-x; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># apt-get install vsftpd</span></div>
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RedHat<br /><span class="xtypo_sticky" style="background-attachment: initial; background-clip: initial; background-color: #5c5d5f; background-image: url("/templates/yoo_nano3/css/assets/shadow.png"); background-origin: initial; background-position: 50% 100%; background-repeat: repeat-x; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># yum -y install vsftpd</span></div>
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Arch Linux<br /><span class="xtypo_sticky" style="background-attachment: initial; background-clip: initial; background-color: #5c5d5f; background-image: url("/templates/yoo_nano3/css/assets/shadow.png"); background-origin: initial; background-position: 50% 100%; background-repeat: repeat-x; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># pacman -S vsftpd</span></div>
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FreeBSD<br /><span class="xtypo_sticky" style="background-attachment: initial; background-clip: initial; background-color: #5c5d5f; background-image: url("/templates/yoo_nano3/css/assets/shadow.png"); background-origin: initial; background-position: 50% 100%; background-repeat: repeat-x; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># pkg install vsftpd</span></div>
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FreeBSD to enable vsftpd you would enter:<br /><span class="xtypo_sticky" style="background-attachment: initial; background-clip: initial; background-color: #5c5d5f; background-image: url("/templates/yoo_nano3/css/assets/shadow.png"); background-origin: initial; background-position: 50% 100%; background-repeat: repeat-x; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># vim /etc/rc.conf</span></div>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Add line below to enable and start vsftpd during startup:</span></span><br />
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; font-size: 13px; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;">vsftpd_enable="YES"</pre>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Start vsftpd:</span></span><br />
<div style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; margin-bottom: 20px;">
<span class="xtypo_sticky" style="background: url("/templates/yoo_nano3/css/assets/shadow.png") 50% 100% repeat-x rgb(92, 93, 95); border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;">$ sudo /usr/local/etc/rc.d/vsftpd start</span></div>
<div style="background-color: white; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; margin-bottom: 20px; margin-top: 20px;">
Some settings in <strong>FreeBSD</strong> vsftpd.conf are a little different. I'll create a article specifically for <strong>FreeBSD</strong> vsftpd<span style="color: #444444;">.</span></div>
<div style="background-color: white; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; margin-bottom: 20px;">
Gentoo<br /><span class="xtypo_sticky" style="background-attachment: initial; background-clip: initial; background-color: #5c5d5f; background-image: url("/templates/yoo_nano3/css/assets/shadow.png"); background-origin: initial; background-position: 50% 100%; background-repeat: repeat-x; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># emerge vsftpd</span></div>
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Adding and starting <strong>Gentoo</strong><span style="color: #444444;"> </span><b><em style="color: #dd0055;">vsftpd at startup</em><span style="color: #444444;">:</span></b></div>
<div style="background-color: white; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; margin-bottom: 20px; margin-top: 20px;">
OpenRC<br /><span class="xtypo_sticky" style="background-attachment: initial; background-clip: initial; background-color: #5c5d5f; background-image: url("/templates/yoo_nano3/css/assets/shadow.png"); background-origin: initial; background-position: 50% 100%; background-repeat: repeat-x; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># rc-update add vsftpd default <br /># /etc/init.d/vsftpd start</span></div>
<div style="background-color: white; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; margin-bottom: 20px; margin-top: 20px;">
systemd<br /><span class="xtypo_sticky" style="background-attachment: initial; background-clip: initial; background-color: #5c5d5f; background-image: url("/templates/yoo_nano3/css/assets/shadow.png"); background-origin: initial; background-position: 50% 100%; background-repeat: repeat-x; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># systemctl enable vsftpd <br /># systemctl start vsftpd</span></div>
<div style="background-color: white; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; margin-bottom: 20px;">
Add user to login to the vsftpd server<br /><span class="xtypo_sticky" style="background-attachment: initial; background-clip: initial; background-color: #5c5d5f; background-image: url("/templates/yoo_nano3/css/assets/shadow.png"); background-origin: initial; background-position: 50% 100%; background-repeat: repeat-x; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># adduser ftpuser</span></div>
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Change password:<br /><span class="xtypo_sticky" style="background-attachment: initial; background-clip: initial; background-color: #5c5d5f; background-image: url("/templates/yoo_nano3/css/assets/shadow.png"); background-origin: initial; background-position: 50% 100%; background-repeat: repeat-x; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># passwd ftpuser</span></div>
<div style="background-color: white; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; margin-bottom: 20px; margin-top: 20px;">
Create a folder for the user we just created in the root or your web server:<br /><span class="xtypo_sticky" style="background-attachment: initial; background-clip: initial; background-color: #5c5d5f; background-image: url("/templates/yoo_nano3/css/assets/shadow.png"); background-origin: initial; background-position: 50% 100%; background-repeat: repeat-x; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># mkdir /var/www/html/ftpuser</span></div>
<div style="background-color: white; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; margin-bottom: 20px; margin-top: 20px;">
Add rights to the directory for the user:<br /><span class="xtypo_sticky" style="background-attachment: initial; background-clip: initial; background-color: #5c5d5f; background-image: url("/templates/yoo_nano3/css/assets/shadow.png"); background-origin: initial; background-position: 50% 100%; background-repeat: repeat-x; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># chmod -R ftpuser:ftpuser /var/www/html/ftpuser</span></div>
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Add the following in:<br style="color: #444444;" /><span class="xtypo_sticky" style="background: url("/templates/yoo_nano3/css/assets/shadow.png") 50% 100% repeat-x rgb(92, 93, 95); border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># vim /etc/vsftpd.conf</span></div>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Add the following lines:</span></span><br />
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; font-size: 13px; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;">listen=YES
anonymous_enable=NO
local_enable=YES
virtual_use_local_privs=YES
write_enable=YES
connect_from_port_20=YES
secure_chroot_dir=/var/run/vsftpd
pam_service_name=vsftpd
guest_enable=YES
ftp_username=www-data
chmod_enable=YES
chown_uploads=YES
chown_username=www-data
guest_username=www-data
force_dot_files=YES
pasv_enable=YES
pasv_promiscuous=YES
pasv_min_port=1024
pasv_max_port=65535
syslog_enable=YES
max_clients=10
max_per_ip=10
port_promiscuous=YES
port_enable=YES
listen_port=21
ftp_data_port=20
user_sub_token=$USER
hide_ids=YES
user_config_dir=/etc/vsftpd
chroot_local_user=YES
allow_writeable_chroot=YES
seccomp_sandbox=NO</pre>
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;"><span style="color: #333333; font-family: Menlo, Monaco, Consolas, Courier New, monospace;"><span style="line-height: 18.5714px;"><b><u>SSL lines</u></b>
ssl_enable=YES
rsa_cert_file=/etc/ssl/linuxsecrets-bundle.crt
rsa_private_key_file=/etc/ssl/linuxsecrets_com.key
allow_anon_ssl=NO
force_local_data_ssl=YES
force_local_logins_ssl=YES
ssl_tlsv1=YES
ssl_sslv2=NO
ssl_sslv3=NO
require_ssl_reuse=NO
ssl_ciphers=HIGH</span></span></pre>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Save the file if using vi or vim hit : then x.</span></span><br />
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Change Default vsftpd Port</u></b></span></span><br />
<br />
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">If you like you can change the vsftpd default ports to non-standard to listen on 1234</span></span><br />
<div class="xtypo_sticky" style="background: url("/templates/yoo_nano3/css/assets/shadow.png") 50% 100% repeat-x rgb(92, 93, 95); border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; font-family: Arial, Helvetica, sans-serif; font-size: 15px; line-height: 20px; margin-bottom: 5px; margin-top: 5px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;">
# vim /etc/vsftpd.conf</div>
<div style="background-color: white; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; margin-bottom: 20px; margin-top: 20px;">
Set this to NO:</div>
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; font-size: 13px; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;">connect_from_port_20=NO
ftp_data_port=1233
listen_port=1234</pre>
<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Custom vsftpd Logs</u></b></span></span><br />
<div class="xtypo_sticky" style="background: url("/templates/yoo_nano3/css/assets/shadow.png") 50% 100% repeat-x rgb(92, 93, 95); border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; font-family: Arial, Helvetica, sans-serif; font-size: 15px; line-height: 20px; margin-bottom: 5px; margin-top: 5px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;">
# vim /etc/vsftpd.conf</div>
<div style="background-color: white; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; margin-bottom: 20px; margin-top: 20px;">
Default log – enable and change for custom location/name</div>
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; font-size: 13px; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;">xferlog_file=/var/log/vsftpd.log</pre>
<span style="color: red; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b>Make sure you disable syslog_enable=NO</b></span></span><br />
<br />
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">This will show all files moving through the webserver, but if you want to view all the activity, including connections and commands you need to add:</span></span><br />
<div>
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; font-size: 13px; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;">log_ftp_protocol=YES</pre>
</div>
<span style="font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">After making changes to the ports you need to restart the service</span></span><br />
<div style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; margin-bottom: 20px;">
<span class="xtypo_sticky" style="background: url("/templates/yoo_nano3/css/assets/shadow.png") 50% 100% repeat-x rgb(92, 93, 95); border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># service vsftpd restart</span></div>
<div style="background-color: white; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; margin-bottom: 20px; margin-top: 20px;">
Verify port:</div>
<div style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; margin-bottom: 20px;">
<span class="xtypo_sticky" style="background: url("/templates/yoo_nano3/css/assets/shadow.png") 50% 100% repeat-x rgb(92, 93, 95); border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># netstat -nuptl | grep ftp</span></div>
<div style="background-color: white; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; margin-bottom: 20px; margin-top: 20px;">
Output:</div>
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; font-size: 13px; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;">tcp 0 0 0.0.0.0:1234 0.0.0.0:* LISTEN 4136/vsftpd</pre>
<div style="background-color: white; margin-bottom: 20px;">
<span style="font-family: Open Sans;"><span style="font-size: 14px; line-height: 20px;"><u><b>Options Defined Bellow:-</b></u></span></span></div>
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; font-size: 13px; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;"><strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">listen</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - vsftpd itself will take care of listening and handling incoming connections. Default setting is NO.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">anonymous_enable</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Allow anonymous FTP? (Beware - allowed by default if you comment this out). Set this to NO</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">local_enable</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Controls whether local logins are permitted or not. If enabled, normal user accounts in /etc/passwd (or wherever your PAM config references) may be used to log in.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">virtual_use_local_privs</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - If enabled, virtual users will use the same privileges as local users. By default, virtual users will use the same privileges as anonymous users, which tends to be more restrictive (especially in terms of write access).</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">write_enable</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - This controls whether any FTP commands which change the filesystem are allowed or not. These commands are: STOR, DELE, RNFR, RNTO, MKD, RMD, APPE and SITE.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">connect_from_port_20</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - This controls whether PORT style data connections use port 20 (ftp-data) on the server machine. </span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">secure_chroot_dir</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - This option should be the name of a directory which is empty. Also, the directory should not be writable by the ftp user. This directory is used as a secure chroot() jail at times vsftpd does not require filesystem access.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">pam_service_name</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - PAM (pluggable authentication modules). A virtual user is a user login which does not exist as a real login on the system in /etc/passwd and /etc/shadow file.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">guest_enable</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - If enabled, all non-anonymous logins are classed as "guest" logins. A guest login is remapped to the user specified in the guest_username setting.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">ftp_username</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - This is the name of the user we use for handling anonymous FTP. The home directory of this user is the root of the anonymous FTP area. Default is ftp.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">chmod_enable</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - When enabled, allows use of the SITE CHMOD command. NOTE! This only applies to local users. Anonymous users never get to use SITE CHMOD.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">chown_uploads</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - If enabled, all anonymously uploaded files will have the ownership changed to the user specified in the setting chown_username. This is useful from an administrative, and perhaps security, standpoint.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">chown_username</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - This is the name of the user who is given ownership of anonymously uploaded files. This option is only relevant if another option, chown_uploads, is set.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">guest_username</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - See the boolean setting guest_enable for a description of what constitutes a guest login. This setting is the real username which guest users are mapped to.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">force_dot_files</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - If activated, files and directories starting with . will be shown in directory listings even if the "a" flag was not used by the client. This override excludes the "." and ".." entries.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">pasv_enable</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Set to NO if you want to disallow the PASV method of obtaining a data connection.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">pasv_promiscuous</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Set to YES if you want to disable the PASV security check that ensures the data connection originates from the same IP address as the control connection. Only enable if you know what you are doing! The only legitimate use for this is in some form of secure tunnelling scheme, or perhaps to facilitate FXP support.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">pasv_min_port</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - The minimum port to allocate for PASV style data connections. Can be used to specify a narrow port range to assist firewalling.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">pasv_max_port</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - The maximum port to allocate for PASV style data connections. Can be used to specify a narrow port range to assist firewalling.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">syslog_enable</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - If enabled, then any log output which would have gone to /var/log/vsftpd.log goes to the system log instead. Logging is done under the FTPD facility.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">max_clients</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - If vsftpd is in standalone mode, this is the maximum number of clients which may be connected. Any additional clients connecting will get an error message.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">max_per_ip</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - If vsftpd is in standalone mode, this is the maximum number of clients which may be connected from the same source internet address. A client will get an error message if they go over this limit.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">port_promiscuous</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Set to YES if you want to disable the PORT security check that ensures that outgoing data connections can only connect to the client. Only enable if you know what you are doing!</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">port_enable</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Set to NO if you want to disallow the PORT method of obtaining a data connection.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">listen_port</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - If vsftpd is in standalone mode, this is the port it will listen on for incoming FTP connections.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">ftp_data_port</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - The port from which PORT style connections originate (as long as the poorly named connect_from_port_20 is enabled).</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">user_sub_token</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - This option is useful is conjunction with virtual users. It is used to automatically generate a home directory for each virtual user, based on a template. For example, if the home directory of the real user specified via guest_username is /home/virtual/$USER, and user_sub_token is set to $USER, then when virtual user fred logs in, he will end up (usually chroot()'ed) in the directory /home/virtual/fred. This option also takes affect if local_root contains user_sub_token.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">hide_ids</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - If enabled, all user and group information in directory listings will be displayed as "ftp".</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">user_config_dir</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - This powerful option allows the override of any config option specified in the manual page, on a per-user basis. Usage is simple, and is best illustrated with an example. If you set user_config_dir to be /etc/vsftpd_user_conf and then log on as the user "chris", then vsftpd will apply the settings in the file /etc/vsftpd_user_conf/chris for the duration of the session. The format of this file is as detailed in this manual page! PLEASE NOTE that not all settings are effective on a per-user basis. For example, many settings only prior to the user's session being started. Examples of settings which will not affect any behviour on a per-user basis include listen_address, banner_file, max_per_ip, max_clients, xferlog_file, etc.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">chroot_local_user</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - If set to YES, local users will be (by default) placed in a chroot() jail in their home directory after login. Warning: This option has security implications, especially if the users have upload </span>permission<span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">, or shell access. Only enable if you know what you are doing. Note that these security implications are not vsftpd specific. They apply to all FTP daemons which offer to put local users in chroot() jails.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">allow_writeable_chroot</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Writeable enabled to specificed location by setting to = YES</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">seccomp_sandbox</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - is a computer security facility that provides an application sandboxing mechanism in the </span>Linux<span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> </span>kernel<span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">. Setting to NO resolves some errors. </span></pre>
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<span style="font-family: Open Sans;"><span style="font-size: 14px; line-height: 20px;"><u><b>SSL Lines Defined Bellow:-</b></u></span></span></div>
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; font-size: 13px; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;"><strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">sl_enable</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Enables SSL support</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">rsa_cert_file</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Specify localtion of you webserver crt like: /etc/ssl/bundle.crt</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">rsa_private_key_file</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Specify location to /etc/ssl/linuxsecrets.key from webserver.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">allow_anon_ssl</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Disallow anaymous logins set to NO</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">force_local_data_ssl</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Only applies if ssl_enable is activated. If activated, all non-anonymous logins are forced to use a secure SSL connection in order to send and receive data on data connections.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">force_local_logins_ssl</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Only applies if ssl_enable is activated. If activated, all non-anonymous logins are forced to use a secure SSL connection in order to send the password.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">ssl_tlsv1</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Only applies if ssl_enable is activated. If enabled, this option will permit TLS v1 protocol connections. TLS v1 connections are preferred.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">ssl_sslv2</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Only applies if ssl_enable is activated. If enabled, this option will permit SSL v2 protocol connections. TLS v1 connections are preferred.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">ssl_sslv3</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - Only applies if ssl_enable is activated. If enabled, this option will permit SSL v3 protocol connections. TLS v1 connections are preferred.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">require_ssl_reuse</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - If set to yes, all SSL data connections are required to exhibit SSL session reuse (which proves that they know the same master secret as the control channel). Although this is a secure default, it may break many FTP clients, so you may want to disable it.</span>
<strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">ssl_ciphers</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;"> - This option can be used to select which SSL ciphers vsftpd will allow for encrypted SSL connections. See the ciphers man page for further details. </span><strong style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">Note</strong><span style="background-color: white; color: #444444; font-family: 'Open Sans'; font-size: 14px; line-height: 20px; white-space: normal;">: that restricting ciphers can be a useful security precaution as it prevents malicious remote parties forcing a cipher which they have found problems with. </span></pre>
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<b><u>Start the vsftpd service</u></b><span class="xtypo_sticky" style="background-attachment: initial; background-clip: initial; background-color: #5c5d5f; background-image: url("/templates/yoo_nano3/css/assets/shadow.png"); background-origin: initial; background-position: 50% 100%; background-repeat: repeat-x; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># service vsftpd start</span></div>
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Verify you have the correct port or custom port assigned and working.<br /><span class="xtypo_sticky" style="background-attachment: initial; background-clip: initial; background-color: #5c5d5f; background-image: url("/templates/yoo_nano3/css/assets/shadow.png"); background-origin: initial; background-position: 50% 100%; background-repeat: repeat-x; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 3px; border: 1px solid rgb(92, 93, 95); box-shadow: rgb(204, 204, 204) 0px 0px 3px; color: white; display: block; font-family: Arial, Helvetica, sans-serif; font-size: 15px; margin: 5px 0px; padding: 5px 15px; text-shadow: rgb(102, 102, 102) 0px -1px 0px;"># netstat -nuptl | grep ftp</span></div>
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Output:</div>
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; font-size: 13px; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;">tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN 4136/vsftpd</pre>
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; font-size: 13px; line-height: 1.42857; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;"><a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></pre>
</div>

Configure vsftpd SSL/TLS and Jail for Any User Writing as www-data to Web Server

Configure vsftpd SSL/TLS and Jail for Any User Writing as www-data to Web Server vsftpd , (or very secure FTP daemon), is an FTP server ...

How to Monitor Linux Memory Bandwidth

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<h1 class="eb-entry-title reset-heading  " id="title-1742" itemprop="name headline" style="font-family: 'Open Sans'; line-height: 50px; margin: 0px 0px 20px; text-rendering: optimizeLegibility;">
<span style="color: #990000; font-size: large;"><u>Monitor Linux Memory Bandwidth</u></span></h1>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><br /></b></span></span></div>
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<span style="color: #333333; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b>Requirements</b></span></span></div>
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<ul style="text-align: left;">
<li><span style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">glibc 2.14 / Intel</span></li>
<li><span style="color: #333333; font-family: verdana, geneva, sans-serif; font-size: 15px; line-height: 26px;">nasm - General-purpose x86 assembler</span></li>
</ul>
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<span style="color: #0b5394; font-family: verdana, geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b><u>Installing Memory Bandwidth</u></b></span></span></div>
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<div style="font-family: verdana, geneva, sans-serif;">
<span style="font-size: 15px; line-height: 26px;">Download The Package From <a href="https://www.mediafire.com/?yenef2319acep6p">Here</a></span></div>
<div style="font-family: verdana, geneva, sans-serif;">
<u>https://www.mediafire.com/?yenef2319acep6p</u></div>
<div style="font-family: verdana, geneva, sans-serif;">
<u><br /></u></div>
<div style="font-family: verdana, geneva, sans-serif;">
<u><br /></u></div>
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<div style="font-family: verdana, geneva, sans-serif;">
<b><u><span style="color: #0b5394;">Install Requirement nasm</span></u></b></div>
<div style="font-family: verdana, geneva, sans-serif;">
<b><u><span style="color: #0b5394;"><br /></span></u></b></div>
<div style="font-family: verdana, geneva, sans-serif;">
<b> RedHat</b></div>
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<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium;"><span style="line-height: 20.8px;"># yum -y install nasm</span></span></pre>
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<b>Debian </b></div>
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<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium;"><span style="line-height: 20.8px;"># apt-get install nasm</span></span></pre>
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<b>Gentoo </b></div>
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<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium;"><span style="line-height: 20.8px;"># emerge nasm</span></span></pre>
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<b>Arch Linux </b></div>
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<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium;"><span style="line-height: 20.8px;"># pacman -S nasm</span></span></pre>
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<b>FreeBSD</b></div>
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<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium;"><span style="line-height: 20.8px;"># pkg install nasm</span></span></pre>
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<span style="font-family: verdana, geneva, sans-serif;">Now unzip it</span></div>
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<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium;"><span style="line-height: 20.8px;"># tar zxvf bandwidth-1.2.0.tar.gz
# cd bandwidth-1.2.0</span></span></pre>
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<span style="font-family: verdana, geneva, sans-serif;">Now we can create the executable by typing:</span></div>
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<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium;"><span style="line-height: 20.8px;"># make bandwidth64</span></span></pre>
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<span style="font-family: verdana, geneva, sans-serif;">Commands available for compiling</span><span style="font-family: verdana, geneva, sans-serif;"> </span></div>
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<span style="font-family: verdana, geneva, sans-serif;"><br /></span></div>
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<span style="font-family: verdana, geneva, sans-serif;">To compile for x86 Linux: make bandwidth32</span></div>
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<span style="font-family: verdana, geneva, sans-serif;">To compile for x86_64 Linux: make bandwidth64</span></div>
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<span style="font-family: verdana, geneva, sans-serif;">To compile for x86 Mac OS/X: make bandwidth-mac32</span></div>
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<span style="font-family: verdana, geneva, sans-serif;">To compile for x86_64 Mac OS/X: make bandwidth-mac64</span></div>
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<span style="font-family: verdana, geneva, sans-serif;">To compile for ARM Linux: make bandwidth-arm32</span></div>
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<span style="font-family: verdana, geneva, sans-serif;">To compile for x86 Win32/Cygwin: make bandwidth-win32</span></div>
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<span style="font-family: verdana, geneva, sans-serif;">Note: For the Mac you will need to install the latest NASM; Apple's is insufficient.</span></div>
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<span style="font-family: verdana, geneva, sans-serif;"><br /></span></div>
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<span style="font-family: verdana, geneva, sans-serif;">Successful! Now let's run bandwidth64</span></div>
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<pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="color: white; font-size: medium;"><span style="line-height: 20.8px;"># ./bandwidth64</span></span></pre>
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<span style="font-family: verdana, geneva, sans-serif;">Output</span></div>
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<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;"><span style="color: #333333; font-family: Menlo, Monaco, Consolas, Courier New, monospace;"><span style="font-size: 12px; line-height: 18.5714px;">This is bandwidth version 1.1.

Copyright (C) 2005-2015 by Zack T Smith.
This software is covered by the GNU Public License.
It is provided AS-IS, use at your own risk.
See the file COPYING for more information.

CPU family: GenuineIntel
CPU features: MMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AES XD Intel64

Cache 0: L1 data cache, line size 64, 8-ways, 64 sets, size 32k
Cache 1: L1 instruction cache, line size 64, 4-ways, 128 sets, size 32k
Cache 2: L2 unified cache, line size 64, 8-ways, 512 sets, size 256k
Cache 3: L3 unified cache, line size 64, 16-ways, 12288 sets, size 12288k

Notation: B = byte, kB = 1024 B, MB = 1048576 B.

CPU speed is 3458.2 MHz.

Sequential read (128-bit), size = 128 B, loops = 2114977792, 51635.0 MB/s
Sequential read (128-bit), size = 256 B, loops = 1162084352, 56740.6 MB/s
Sequential read (128-bit), size = 384 B, loops = 774719946, 56736.7 MB/s
Sequential read (128-bit), size = 512 B, loops = 581042176, 56739.8 MB/s
Sequential read (128-bit), size = 640 B, loops = 464831081, 56735.2 MB/s
Sequential read (128-bit), size = 768 B, loops = 387359973, 56734.4 MB/s
Sequential read (128-bit), size = 896 B, loops = 332022834, 56738.5 MB/s
Sequential read (128-bit), size = 1024 B, loops = 290586624, 56743.8 MB/s
Sequential read (128-bit), size = 1280 B, loops = 232413324, 56740.8 MB/s
Sequential read (128-bit), size = 2 kB, loops = 145260544, 56737.8 MB/s
Sequential read (128-bit), size = 3 kB, loops = 96838885, 56736.9 MB/s
Sequential read (128-bit), size = 4 kB, loops = 72630272, 56742.0 MB/s
Sequential read (128-bit), size = 6 kB, loops = 48417226, 56738.5 MB/s
Sequential read (128-bit), size = 8 kB, loops = 36315136, 56740.0 MB/s
Sequential read (128-bit), size = 12 kB, loops = 24214074, 56741.2 MB/s
Sequential read (128-bit), size = 16 kB, loops = 18157568, 56735.7 MB/s
Sequential read (128-bit), size = 20 kB, loops = 14525784, 56740.4 MB/s
Sequential read (128-bit), size = 24 kB, loops = 12104820, 56735.9 MB/s
Sequential read (128-bit), size = 28 kB, loops = 10375560, 56738.7 MB/s
Sequential read (128-bit), size = 32 kB, loops = 8742912, 54640.6 MB/s
Sequential read (128-bit), size = 34 kB, loops = 6781113, 45025.7 MB/s
Sequential read (128-bit), size = 36 kB, loops = 5341700, 37553.3 MB/s
Sequential read (128-bit), size = 40 kB, loops = 4810806, 37580.8 MB/s
Sequential read (128-bit), size = 48 kB, loops = 4013100, 37622.4 MB/s
Sequential read (128-bit), size = 64 kB, loops = 3014656, 37673.6 MB/s</span></span></pre>
<pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; margin-bottom: 10px; overflow: auto; padding: 9.5px; word-break: break-all; word-wrap: break-word;"><span style="color: #333333; font-family: Menlo, Monaco, Consolas, Courier New, monospace;"><span style="font-size: 12px; line-height: 18.5714px;"><a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></span></span></pre>
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How to Monitor Linux Memory Bandwidth

Monitor Linux Memory Bandwidth Requirements glibc 2.14 / Intel nasm - General-purpose x86 assembler Installing Memory Bandw...