Psyche default firewalling is a bit brut force. I would recommend using one of the iptables scripts available on the net. I like gShield, shorewall gets some good press also. As far as which ports you should open do a google search on "common tcp ports nfs" In the case of nfs I believe all you need is sunrpc portmapper(111) and nfs (2049) If you are using gShield there is an nfs option in the gShield.conf file to open or forward nfs ports, handles what is needed. -----Original Message----- From: Deng Guang [mailto:deng.guang@163.com] Sent: Mon, December 16, 2002 4:14 AM To: psyche-list@redhat.com Subject: nfs client conflicts with iptables on my computer. When iptables is up, my computer can't mount remote fs.The error message is "RPC time out". After I stop it, nfs client works fun. I deleted some rules one by one to find which rule blocked the access. The result is the rule of 0:1023 port udp rejection. I am anxious to know which port shall I open or how to get though the iptables normally when mount nfs fs. -- Psyche-list mailing list Psyche-list@redhat.com https://listman.redhat.com/mailman/listinfo/psyche-list -- Psyche-list mailing list Psyche-list@redhat.com https://listman.redhat.com/mailman/listinfo/psyche-list