Haven't been in that situation, but looking through my vimrc, the only things that I think I'd consider updating are turning off line wrap and changing the tab settings.

Basically this block:

  set ts=3
  set expandtab
  set sw=3
  set nosmartindent
  set nowrap

I don't know what all of those mean, but I like how my vim works. Usually if I'm editing files on a server its just editing configuration files, and I just use whatever the stock vim settings are.