need advice on how to control access to blinkd from net

["Drew Cohan" <drewcohan@drewcohan.com>]

Hello,

 

blinkd (a daemon that allows the user to control the state of the keyboard
leds) opens tcp port 20013 after starting (as shown by netstat -a | grep
LIST).  There is no built in security (already listed as one of its bugs).
What I'd like to know is how to I deny access to this port/daemon to anyone
on the net? (don't care about local users)  I haven't set up any kind of
iptables/ipchains firewall on this machine (not yet anyway).  Is there a
simple way to do this?

 

TIA,

 

Drew Cohan

drew at drewcohan dot com