Hello all,

I need some help. I am running RH9 and wish to disable port 6000 (X). I've read through a ton of newsgroups and websites and no joy. I've done just about everything I can and am begging for help!

I've gone and modified my:

/etc/X11/gdm/gdm.conf "StandardXServer=/usr/X11R6/bin/X"
section and added the option -nolisten tcp. I have tried killing X but it respawns.

...in addition, I have edited the /etc/X11/xdm/Xservers by adding the -nolisten tcp after X .

Really at a loss here. I wish to run X if I need to be on the console but would prefer not to advertise port 6000.

Other than disabling X, are there any options??

Thanks

HEM

Firewall off the port. Personanly I would deny all and allow a few - eg:
# Drop everything by default
iptables -P INPUT DROP
# Allow incomming ssh
iptables -A INPUT -p --dport 22 -j ACCEPT
# Allow incomming http
iptables -A INPUT -p --dport 80 -j ACCEPT

After specifying the -nolisten param, you change your run level to 3 and then back to 5. It is only then that X stops listening on 6000.

And our new-mod David's suggestion to use iptables is ever-valid.

The reason I tend to use iptables is that you can open it up to a specfic source address if you want to access the X server from another machine.

thanks for the help!

I went ahead and did a "init 3" and scanned the box and found the port 6000 disapeared and then port 111 took its place (interesting). Not sure why it did this for I'm not a super Linux guy but I went ahead and moved the /etc/rc3.d/S14portmap file (for when I reboot) and ran an /etc/init.d/portmap stop to stop the existing portmap service.

I am very greatful for Linux but there seems to be a ways to go on getting the word out on correctly configuring them. There are so many options that the RH Bible could never do it justice.

IMO though, there should be a simple config file that controls X.

thanks for your comments!

HEM