Hi You need 2 ports open 2049/udp 2049/tcp but you should read this little howto http://www.cyberciti.biz/faq/centos-fedora-rhel-iptables-open-nfs-server-ports/ Per On Thu, 2010-02-18 at 13:00 +0200, Rudi Ahlers wrote: > Hi all, > > > Which ports do I need to have open on an NFS client's firewall to > allow it to connect to a remote NFS servers? > > > When I disable iptables (using ConfigServerFirewall), it connects > fine, but as soon as I enable it, NFS gives me this error: > root at saturn:[~]$ mount master1.mydomain.co.za:/saturn /bck > mount: mount to NFS server 'master1.mydomain.co.za' failed: RPC Error: > Unable to send. > > > I have added ports 111 & 2049 in both the TCP & UDP ingres & exgress > ranges, but that doesn't seem to help. portmap & nfs is running as > well. But as I say, as soon as I disable the firewall, it mounts > fine. > > > Google search results reveal a lot of different ports, like 4000:4004, > 83xxxx (something, I forgot) but it still doesn't help. > > > > > root at saturn:[~]$ rpcinfo -p > program vers proto port > 100000 2 tcp 111 portmapper > 100000 2 udp 111 portmapper > 100021 1 udp 48996 nlockmgr > 100021 3 udp 48996 nlockmgr > 100021 4 udp 48996 nlockmgr > 100021 1 tcp 47195 nlockmgr > 100021 3 tcp 47195 nlockmgr > 100021 4 tcp 47195 nlockmgr > 100011 1 udp 4004 rquotad > 100011 2 udp 4004 rquotad > 100011 1 tcp 4004 rquotad > 100011 2 tcp 4004 rquotad > 100003 2 udp 2049 nfs > 100003 3 udp 2049 nfs > 100003 4 udp 2049 nfs > 100003 2 tcp 2049 nfs > 100003 3 tcp 2049 nfs > 100003 4 tcp 2049 nfs > 100005 1 udp 4003 mountd > 100005 1 tcp 4003 mountd > 100005 2 udp 4003 mountd > 100005 2 tcp 4003 mountd > 100005 3 udp 4003 mountd > 100005 3 tcp 4003 mountd > > > > > -- > Kind Regards > Rudi Ahlers > SoftDux > > Website: http://www.SoftDux.com > Technical Blog: http://Blog.SoftDux.com > Office: 087 805 9573 > Cell: 082 554 7532 > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos