NFS uses RPC. When the NFS server is rebooted, the ports RPC assigns to it may change, which is what you are seeing this. You can fix those ports to use specific ports. There is a good explanation of how to do this at http://www.lowth.com/LinWiz/1.09/ I used this to fix the ports on our server NFS servers. Ryan -----Original Message----- From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Margaret Doll Sent: Friday, April 08, 2005 10:42 AM To: redhat-list@xxxxxxxxxx Subject: firewalls besides iptables I have opened some ports in iptables on an Enterprise 3 system to allow nfs mounting of its partitions on other systems. When I do an "nmap" on this system from a second system, I see that some of the ports that I thought I had opened are closed and some are open. Is there something besides iptables that might be running on the system? I did not set up the "problem" system, so I do not know all the steps that were involved in the setup. Other Enterprise 3 systems that I have do have these "closed" ports open. nfs is not working properly on the first system. It does work if I stop the iptables services altogether. The other "strange" thing about the system is that "rpcinfo -p" shows portmapper, rquotad, nfs, mountd and status. nlockmgr and sgi_fam are not present. Services portmap, nfs and nfslock have been started. -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list