Mauricio Tavares wrote:
> I have a centos 4.4 box I would like to use as my NIS server. How to
> setup NIS such that ypserv, ypxfrd, and yppasswd will use fixed ports? I
> remember that one of the differences between linux and solaris was that
> in linux you could specify the ports for those services. Am I correct?
>
> Now, here is an even easier question: how to setup the firewall at the
> host to pass those ports? I have made it work but simpyl turning the
> firewall off but that is really really not what I am looking to do.

Haven't tried it, but I believe the commands in question can all
take --port

With regards to iptables (not sure what "firewall" you are using)...
I think you need something like:

iptables -I INPUT -i -p udp --dport --sport \
-j ACCEPT

(not totally sure about having both dport and sport... not sure
exactly how the connections are done for yp stuff.. replace
and with the values for your yp port
number and network interface)