Put this into ~/.bashrc then everytime you ssh to a host it will startup a screen session or resume one. This way you will not loss work when connection is broken.

<file>
ssh() {
  if [[ "$2" == "" ]]; then
    command ssh "$1" -Xt screen -aAdr -RR work bash
  else
    command ssh $@
  fi
}
</file>

----

----
Source:http://profarius.com/content/persistent-ssh