nfsd/portmapper and iptables on Linux 4

[James Cooley]

Ben,

No problem.  O'Reilly makes a cheap pocket reference for iptables called 
"Linux iptables Pocket reference" which can be had from bookstores for 
about $10, or bookpool.com for around $6.  It's fairly good at 
explaining the syntax and getting you up to speed with creating rules.

I still prefer the ipfw rule format in FreeBSD to the iptables in Linux, 
but you have to use what you've got.  The random port assignments throw 
a lot of people for a loop, and usually the offenders are only RPC based 
services.  The nfs random ports drove me nuts for quite a awhile, and I 
never found a solution to it until I just 'tried' putting the services 
in /etc/services.

In any case, I'm just glad I could be of some help.

--James Cooley


Ben Ransom wrote:

> Thanks again James.  This works, but of course I feel I must be 
> missing something wrt how to deal with random port assignment and 
> iptables.  So far I've gotten away with very only understanding of 
> iptables syntax and rule making ...will read up and hope to get back 
> to random ports eventually.
> -Ben
>