OK, I'm at Arcspace, and we have progress!
The server now has a control panel, and should be web accessible. I've used a system called PageKite to achieve this for now, until we can figure out the Arcspace router settings.
The control panel is Virtualmin, and it is incredibly powerful. Amongst many other features, it allows terminal access either view browser or Java, so even though we haven't got normal SSH access yet(remote control of the terminal from another terminal) we have browser based SSH access, which should be just as good.
I still haven't got the additional memory, but the server is running fine with only 760mb for now. I'll do more tomorrow; it's getting late for now.
Out of interest PageKite is a company set up by Bjarni Einarsson, a friend of mine, and FSFE Fellow in Iceland. He had the idea a couple of years ago at FOSDEM, and has since got a grant from the Icelandic Government to continue work on the project. PageKite is 100% Free Software, you just pay for bandwidth. When I asked for support for Freedom Boxes last year, Bjarni hadn't considered it, and added it within ten minutes!
For those with a more technical bent, here are the notes I made during the setup:
Virtualmin: virus scanning off (clamd) spam filter on (spamassassin) MySQL yes PostgreSQL no 512mb RAM mysql max memory usage Used IP address 82.138.218.11 for hostname (DNS records will be based on this in virtualmin, probably won't work) mailboxes and virtual servers used hashed passwords - one way only!
Hardware: disk has many bad sectors - may need replacing
Pagekite: running this command: pagekite ssh://mailpod.pagekite.me AND 10000 https://mailpod.pagekite.me:3000
makes virtualmin accessible via pagekite at this address: https://mailpod.pagekite.me:3000/
I need a rest,
Sam.
PS attached screenshots of the server control panel being accessed remotely. This email was sent from the server itself.