Let’s say you already use ports in order to install on your FreeBSD system the tools you need for your daily work. One of my collection is vim.

You already know that it is not so smart to leave SSH running on your servers on default port and accessible from every internet address (ie. no firewall restrictions, no host allow/deny).. but in real world it happens to do so since, let’s say, you have no static IP, you have no access to firewall rules and so on.

First of all we install postfix package (if not already installed):