This is a fresh linode Ubuntu 10.04 LTS vps. I am trying to install postfix, but I get weird character encodings in the package config and cannot choose options. I had the same thing with mysql but ignored it since I could still type in the root password, but here I cannot choose the setting I need.
In your terminal,
If your terminal is emulating, say, xterm, then, when you ssh into the VPS, you should run