To enable automatic title updating when jumping around with ssh, add this to ~/.bashrc:
ssh() {
echo -n -e "\033k$1\033\\"
/usr/bin/ssh "$@"
echo -n -e "\033k`hostname -s`\033\\"
}
echo -n -e "\033k`hostname -s`\033\\"
See http://linuxepiphany.blogspot.com.ar/2010/05/good-screenrc-config-setup.html