user=$1
d=$2
: ${alice_sshd_port:=22}
[ -n "$d" ] || {
	echo >&2 usage: `basename "$0"` user display-number
	exit 1
}
VNC_VIA_CMD="/usr/bin/ssh -p $alice_sshd_port -l $user -f -L %L:%H:%R %G sleep 20" xtightvncviewer -via nipl.net -passwd $HOME/.vnc/passwd localhost:$d