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Saturday, August 13, 2011

Very Secure File Transfer Protocol Daemon (VSFTPD

Features:
1. FTPD
2. Chroot jail
3. anonymous and local-user auth
4. Rate-limiting

Tasks:
1. Install 'vsftpd'
a. yum -y install vsftpd

2. Start the server
a. service vsftpd start
b. netstat -ntlp | grep 21

3. Configure service to start when system boots into multi-user runlevel
a. chkconfig vsftpd on
b. chkconfig --list vsftpd

4. Connect to the FTPD service:
a. Use web browser, which defaults to anonymous
b. Use standard FTP client, as anonymous
c. setsebool -P ftp_home_dir=1 - permits users access to their home directory
d. service vsftpd restart - for changes to take effect

5. Chroot jail local users & disable 'anonymous' access
a. chroot_local_user=YES - this jails users
b. service vsftpd restart - for changes to take effect
c. test connectivity as 'anonymous' and 'non-anonymous' users

6. Enable IPv6 listener:
a. listen_ipv6=YES - DO NOT USE WITH 'listen=YES(IPv4)'


7. Restrict 'non-anonymous' user's transfer rate
a. local_max_rate=1000 - restricts connections to 1000/bps (1K/s)

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