-# Set up tmux.
-apt-get -y install tmux
-
-# Set up weechat, OTR, bitlbee.
-apt-get -y install weechat-plugins python-potr bitlbee
+# Set up screen/weechat/OTR/bitlbee. Make bitlbee listen only locally.
+apt-get -y install screen weechat-plugins python-potr bitlbee
+sed -i 's/^# DaemonInterface/DaemonInterface = 127.0.0.1 # DaemonInterface/' /etc/bitlbee/bitlbee.conf
+sedtest=`grep -E '^DaemonInterface = 127.0.0.1 #' /etc/bitlbee/bitlbee.conf | wc -l | cut -d ' ' -f 1`
+if [ 0 -eq $sedtest ]; then
+ false
+fi