On 03/19/2014 02:44 PM, Ljubomir Ljubojevic wrote:
It is very strange that client can mount directory on DIFFERENT SERVER? It looks like you have DNS/IP issues on your network?
I used autofs and IP address to point it to desired server, to avoid possible DNS problems.
I've resolved this issue, in a way that both uses the server names (instead of IP) but avoids DNS problems also and allows you to use shares from multiple servers. Every instruction I read indicated that the hostname value was important. Careful scrutinizing of the config file reveals that there are really two values that are important, so here's my rough instruction:
1) /etc/idmapd.conf # Set domain to the domain name shared by your NFS servers. Domain: mycompany.com Set local-realms to the name of the nfs servers you'll be using. THIS WASN'T MENTIONED ELSEWHERE. Local-Realms: nfs1.mycompany.com,nfs2.mycompany.com # make the above changes on all the servers in question.
2) /etc/hosts: list with all the NFS servers you specified in local-realms above. This way DNS errors don't make your servers get "hung" 1.2.3.4 nfs1.mycompany.com 1.2.3.5 nfs2.mycompany.com
3) Make sure you synchronize your /etc/passwd files so that the account IDs match up or you'll get very strange results.
4) Reboot EVERYTHING. Restarting services (in my case) was not enough. For documentation's sake, I restarted rpcidmapd, nfslock, and nfs, but didn't get the correct permissions until reboot. It doesn't seem important to run the nfs service on the clients.
5) Client mount: # CLI /bin/mount -t nfs hume.schoolpathways.com:/path/to/share /local/mount/point
# /etc/fstab nfs1.mycompany.com:/path/to/share /local/mount/mount nfs ro,nolock 0 0
# mount -a