- client_a (RHEL6) needs to change IP address since it has moved to a new network. All NFS mounts are working here
- server_a (Solaris 9) has 5 shares but client_a only requires 3
Code:
# cat /etc/dfs/dfstab
share -F nfs -o rw=client_a -d "share_1" /export/share_1
share -F nfs -o rw=client_a -d "share_2" /export/share_2
share -F nfs -o rw=client_a -d "share_3" /export/share_3
share -F nfs -o rw=client_a -d "share_4" /export/share_4
share -F nfs -o rw=client_a -d "share_5" /export/share_5
* share_1/2/3 are working using the old IP address
after the change in IP address, client_a is showing permission denied whenever an ls, or df is done. the mount operation appears to be successful (return code of 0). however, /var/log/messages shows RPC server_a requires stronger authentication.
for troubleshooting sake, i tried to mount share_4 and share_5, and they mount without any errors.
Code:
# mount server_a:/export/share_1 /share_1
# echo $?
0
# df -k /share_1
df: `/share_1': Permission denied
df: no file systems processed
# mount server_a:/export/share_4 /share_4
# df -k /share_4
Filesystem 1K-blocks Used Available Use% Mounted on
server_a:/export/share_4
221868032 59837440 139843584 30% /share_4
/var/log/messsages
Code:
client_a kernel: NFS: nfs mount opts='addr=10.123.0.30,vers=3,proto=tcp,mountvers=3,mountproto=udp,mountport=33689'
client_a kernel: NFS: parsing nfs mount option 'addr=10.123.0.30'
client_a kernel: NFS: parsing nfs mount option 'vers=3'
client_a kernel: NFS: parsing nfs mount option 'proto=tcp'
client_a kernel: NFS: parsing nfs mount option 'mountvers=3'
client_a kernel: NFS: parsing nfs mount option 'mountproto=udp'
client_a kernel: NFS: parsing nfs mount option 'mountport=33689'
client_a kernel: NFS: MNTPATH: '/export/share_1'
client_a kernel: NFS: sending MNT request for server_a:/export/share_1
client_a kernel: NFS: received 1 auth flavors
client_a kernel: NFS: auth flavor[0]: 1
client_a kernel: NFS: MNT request succeeded
client_a kernel: NFS: using auth flavor 1
client_a kernel: --> nfs_init_server()
client_a kernel: --> nfs_get_client(server_a,v3)
client_a kernel: --> nfs_get_client() = ffff8802375cf000 [share]
client_a kernel: <-- nfs_init_server() = 0 [new ffff8802375cf000]
client_a kernel: --> nfs_probe_fsinfo()
client_a kernel: NFS call fsinfo
client_a kernel: NFS reply fsinfo: 0
client_a kernel: set_pnfs_layoutdriver: Using NFSv4 I/O
client_a kernel: NFS call pathconf
client_a kernel: RPC: server server_a requires stronger authentication.
client_a kernel: NFS reply pathconf: -13
client_a kernel: <-- nfs_probe_fsinfo() = 0
client_a kernel: NFS call getattr
client_a kernel: NFS reply getattr: 0
client_a kernel: Server FSID: dd00009476:0
client_a kernel: NFS: get superblock cookie (0xffff880238901800/0xffff88023a75d270)
client_a kernel: do_proc_get_root: call fsinfo
client_a kernel: do_proc_get_root: reply fsinfo: 0
client_a kernel: NFS: nfs_fhget(0:16/2 ct=1)
when i rollback to the old ip address, the required 3 shares are mounting correctly.
both server_a and client_a do not have software firewalls (ipfilter, etc...)
NFS share permission denied after client changes ip address
