SoftLayer - Tutorial Twenty - Part 7 - Linux Security with Iptables
Channel: Eamonn Killian
Date: 05/07/2015

In this part we will build an ftp server on our server and then enable access to the ftp server by one host on the public ip. We will install and configure vsftpd to enable an ftp service. It is unlikely (not recommended) to have an ftp server but it can be useful for moving files up to your server externally in specific use cases.

FTP is also particularly tricky to install a firwall for as it 'jumps' ports so it allows us to examine the conntrack extensions to iptables.