Description of problem: After upgrading my NFS (v4) server from FC5 to FC6, I need to open up my iptables firewall for ports other than 2049. Version-Release number of selected component (if applicable): nfs-utils-1.0.9-8.fc6 kernel-2.6.18-1.2798.fc6 How reproducible: Every time. Steps to Reproduce: 1. On the nfs server, install FC5 with SELinux (targeted policy) and iptables enabled. Permit TCP traffic to arrive via port 2049: -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 2049 -j ACCEPT Configure NFS to export a shared home directory space. /etc/exports: /srv/nfs 10.0.0.0/24(rw,sync,nohide,no_subtree_check,fsid=0,anonuid=65534,anongid=65534) /srv/nfs/home 10.0.0.0/24(rw,sync,nohide,no_subtree_check,anonuid=65534,anongid=65534) (plus a bind mount in /etc/fstab for the /home -> /srv/nfs/home translation) On the client (previously FC5, now FC6, same configuration both ways), /etc/auto.home: * -fstype=nfs4,rw,proto=tcp,port=2049 nfsserver:/home/& And /etc/auto.master: /home /etc/auto.home --timeout=90 On both client and server, set up /etc/idmapd.conf to specify nfsnobody as the user and group, and a common domain. 2. Watch as /home automounts wondefully on the client. 3. Upgrade server to FC6, watch as client can no longer automount directories in /home. Additional info: Completely disabling the iptables firewall on the NFS server has corrected the problem as a stop-gap measure. I haven't had a chance to spend much time debugging this yet, as we just needed the machine back up and running; I'll try to spend a bit of time with ethereal over the next few days seeing what specifically isn't working. I'm basing this approach on the documentation found here: http://www.vanemery.com/Linux/NFSv4/NFSv4-no-rpcsec.html
Would it be possible to post a bzip2 binary tethereal network trace of the mount? Something similar to tethereal -w /tmp/data.pcap host <server> ; bzip2 /tmp/data.pcap
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