By default, X server listens on all interfaces: $ netstat -atne |fgrep :6000 tcp 0 0 0.0.0.0:6000 0.0.0.0:* LISTEN 0 38825 This is insecure. 127.0.0.1:6000 is enough for most cases.
Implemented "-nolisten tcp" in xinitrc-2.4.18-alt1
thnx