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mount.nfs: mount to NFS server 'rpcbind' failed
It isn't a question but an answer. I had a problem and I resolved it after some researches. I publish the report about it in hope it will be useful for the other users.
I use three machines: home1, home2, and home3. System configuration on all those machines is virtually the same. First and second machines I used for several years with different versions of Slackware -- third machine is new one and I just try to configure Slackware on it.
When I tried to use NFS I stated the following...
I could ping from any machine to any machine but I had some problems with NFS.
On home1 I could mount home2 directories but I couldn't mount home3 directories.
On home2 I could mount home1 directories but I couldn't mount home3 directories.
On home3 I could mount home1 directories but I couldn't mount home2 directories.
In three cases in which I couldn't mount directory mount command displayed the same message:
mount.nfs: mount to NFS server 'rpcbind' failed: RPC Error: Program not registered
mount.nfs: internal error
I started my researches...
Each successful mount and unmount was reported in /var/log/messages on the client side by something like:
mountd[2689]: authenticated mount request from 192.168.1.x:796 for / (/)
mountd[2689]: authenticated unmount request from 192.168.1.x:641 for / (/)
When I failed to mount home2 directories on home3 machine /var/log/syslog on the server side reported:
kernel: nf_conntrack version 0.5.0 (8192 buckets, 32768 max)
portmap[2894]: connect from 192.168.1.3 to getport(mountd): request from unauthorized host
portmap[2895]: connect from 192.168.1.3 to getport(nfs): request from unauthorized host
portmap[2895]: connect from 192.168.1.3 to getport(nfs): request from unauthorized host
When I failed to mount home3 directories on home1 and on home2 none machine reported nothing.
In such situation I decided to check everything from scratch...
After a dozen or so minutes I stated the reasons of that problems were relatively simple.
On home3 rc.nfsd hadn't permission to be executed for some reason.
# chmod u+x /etc/rc.d/rc.nfsd
# /etc/rc.d/rc.nfsd start
...and I can mount home3 directories.
On home2 server home3 client wasn't registered in hosts.allow.
# echo "ALL: ALL@192.168.1.3 : ALLOW" >> /etc/hosts.allow
# cat /etc/hosts.deny
ALL: ALL@ALL
# cat /etc/hosts.allow
ALL: ALL@127.0.0.1 : ALLOW
ALL: ALL@192.168.1.1 : ALLOW
ALL: ALL@192.168.1.2 : ALLOW
ALL: ALL@192.168.1.3 : ALLOW
...and I can mount home2 directories using home3 machine.
It's all.
Have a nice day...
Last edited by w1k0; 10-18-2008 at 06:26 AM.
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