How to setup a VSFTPD

Install Vsftpd FTP Server

Install the vsftpd package via yum command:
# yum install vsftpd

Vsftpd Defaults

1. Default port: TCP / UDP - 21 and 20
2. The main configuration file: /etc/vsftpd/vsftpd.conf
3. Users that are not allowed to login via ftp: /etc/vsftpd/ftpusers

Configure Vsftpd Server

Open the configuration file, type:
# vi /etc/vsftpd/vsftpd.conf
Turn off standard ftpd xferlog log format:

xferlog_std_format=NO

Turn on verbose vsftpd log format. The default vsftpd log file is /var/log/vsftpd.log:

log_ftp_protocol=YES

Above to directives will enable logging of all FTP transactions. Lock down users to their home directories:

chroot_local_user=YES

Create warning banners for all FTP users:

banner_file=/etc/vsftpd/issue

Create /etc/vsftpd/issue file with a message compliant with the local site policy or a legal disclaimer:

NOTICE TO USERS
Use of this system constitutes consent to security monitoring and testing.
All activity is logged with your host name and IP address.

Turn On Vsftpd Service

Turn on vsftpd on boot:
# chkconfig vsftpd on
Start the service:
# service vsftpd start
# netstat -tulpn | grep :21

Configure Iptables To Protect The FTP Server

Open file /etc/sysconfig/iptables, enter:
# vi /etc/sysconfig/iptables
Add the following lines, ensuring that they appear before the final LOG and DROP lines for the RH-Firewall-1-INPUT:

-A RH-Firewall-1-INPUT -m state --state NEW -p tcp --dport 21 -j ACCEPT

Open file /etc/sysconfig/iptables-config, enter:
# vi /etc/sysconfig/iptables-config
Ensure that the space-separated list of modules contains the FTP connection tracking module:

IPTABLES_MODULES="ip_conntrack_ftp"

Save and close the file. Restart firewall:
# service iptables restarthttp://www.cyberciti.biz/tips/rhel-fedora-centos-vsftpd-installation.html

Zyxel Switch

ftp://ftp.zyxel.com/GS2200-8/user_guide/GS2200-8_.pdf