Add rules to IPTABLES

I have done some searching and have come up with nothing.

 

I am running NoCatAuth and want to add some extra rules to Iptables in
regards to blocking access to ports 22, 23 and 5900:5910 from all IPs other
than my local IP 192.168.0.5. I can usually just append a rule to IPTABLES
by running something like:

IPTABLEs -A INPUT -source ! 192.168.0.5 -protocol all -dport 22 -j DROP

 

If I do this I seem to lose the nocat rules in IPTABLES. Is there a specific
method of adding rules to IPTABLES when running NoCatAuth?

 

Regards,
David