I am following The Perfect Server for Gutsy. I am up to page 3 where it says "From now on you can use an SSH client and connect from your workstation". I cannot. I use putty and get Connection Refused. I have not been playing with anything so the server setup is as described in the guide and I have used both the PuTTY gui and cli and get the same message. Do I need to open port 22 on IPtables (if so, how) or is there something else I should look at?