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Showing posts from July, 2013

Troubleshooting NFS servers

OMFG, NFS servers are SUCH a pain in the backside.  But anyway, here are some useful tricks: On server:     netstat -l lists which services are listening on which port.    rpcinfo -p also lists rpc processes, with program numbers and ports     /etc/services The file portmapper uses to see which port the services should run on.  Names of the relevant services are: mountd lockd and status HOWEVER:     sysctl -w fs.nfs.nlm_tcpport=blah    sysctl -w fs.nfs.nlm_udpport=blah might be needed to set the port of nlockmgr.  Why it doesn't listen to portmapper, I've no idea. Debug logs:    - kill the server process (nfsd, mountd, or whichever)    - run the server process with a -F or without the -D to force it to run in the foreground (you also might have to include a debug or verbose mode option.    - try to mount the nfs share from the client.  Now you should get a load of mean...