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Old 12th June 2012, 01:16 AM
KevinDrums Offline
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Join Date: Apr 2010
Location: USA
Posts: 43
linuxfirefox
F17 NFS Trouble - rquotad not running?

I installed two F16 machines, and NFS was working just fine between those and my other systems. I took one of those two F16 machines and did a fresh install to F17. Now the F17 machine can't even automount (autofs) itself. Nor are other machines able to mount it. To troubleshoot this I had a look with showmount.
Code:
[kevinc@f16good-kevinc #26] sudo showmount -e
[sudo] password for kevinc: 
Export list for f16good.somewhere.com:
/projects 192.168.1.0/24
/nobackup 192.168.1.0/24
/music    192.168.1.0/24
/home     192.168.1.0/24

[kevinc@f17bad ~]$ sudo showmount -e
[sudo] password for kevinc: 
clnt_create: RPC: Port mapper failure - Authentication error
The above points to an RPC problem on the F17 machine. So, I ran rpcinfo on both machines.
Code:
[kevinc@f16good-kevinc #27] rpcinfo -p                                               
   program vers proto   port  service                                                
    100000    4   tcp    111  portmapper                                             
    100000    3   tcp    111  portmapper                                             
    100000    2   tcp    111  portmapper                                             
    100000    4   udp    111  portmapper                                             
    100000    3   udp    111  portmapper                                             
    100000    2   udp    111  portmapper                                             
    100011    1   udp    875  rquotad                                                
    100011    2   udp    875  rquotad
    100011    1   tcp    875  rquotad
    100011    2   tcp    875  rquotad                                                
    100024    1   udp   4001  status
    100024    1   tcp   4001  status
    100003    2   tcp   2049  nfs                                                    
    100003    3   tcp   2049  nfs                                                    
    100003    4   tcp   2049  nfs                                                    
    100227    2   tcp   2049  nfs_acl
    100227    3   tcp   2049  nfs_acl                                                
    100003    2   udp   2049  nfs
    100003    3   udp   2049  nfs
    100003    4   udp   2049  nfs
    100227    2   udp   2049  nfs_acl
    100227    3   udp   2049  nfs_acl                                                
    100021    1   udp   4002  nlockmgr
    100021    3   udp   4002  nlockmgr
    100021    4   udp   4002  nlockmgr
    100021    1   tcp   4002  nlockmgr
    100021    3   tcp   4002  nlockmgr
    100021    4   tcp   4002  nlockmgr
    100005    1   udp  20048  mountd
    100005    1   tcp  20048  mountd
    100005    2   udp  20048  mountd
    100005    2   tcp  20048  mountd
    100005    3   udp  20048  mountd
    100005    3   tcp  20048  mountd

[kevinc@f17bad ~]$ rpcinfo -p
   program vers proto   port  service
    100000    4   tcp    111  portmapper
    100000    3   tcp    111  portmapper
    100000    2   tcp    111  portmapper
    100000    4   udp    111  portmapper
    100000    3   udp    111  portmapper
    100000    2   udp    111  portmapper
    100024    1   udp  49054  status
    100003    2   tcp   2049  nfs
    100003    3   tcp   2049  nfs
    100003    4   tcp   2049  nfs
    100227    2   tcp   2049  nfs_acl
    100227    3   tcp   2049  nfs_acl
    100003    2   udp   2049  nfs
    100003    3   udp   2049  nfs
    100003    4   udp   2049  nfs
    100227    2   udp   2049  nfs_acl
    100227    3   udp   2049  nfs_acl
    100024    1   tcp  37154  status
    100021    1   udp  58856  nlockmgr
    100021    3   udp  58856  nlockmgr
    100021    4   udp  58856  nlockmgr
    100021    1   tcp  48762  nlockmgr
    100021    3   tcp  48762  nlockmgr
    100021    4   tcp  48762  nlockmgr
    100005    1   udp  20048  mountd
    100005    1   tcp  20048  mountd
    100005    2   udp  20048  mountd
    100005    2   tcp  20048  mountd
    100005    3   udp  20048  mountd
    100005    3   tcp  20048  mountd
The above shows that rquotad fails to run on the F17 machine. Looking through NFS documentation it looks like rquotad is something that's supposed to be started by the other NFS processes, and not via user interaction.

For completeness, the /etc/exports files of the two machines are as follows:
Code:
::::::::::::::
f16good/exports
::::::::::::::
/home 192.168.1.0/24(rw,no_root_squash,sync)
/music 192.168.1.0/24(rw,no_root_squash,sync)
/nobackup 192.168.1.0/24(rw,no_root_squash,sync)
/projects 192.168.1.0/24(rw,no_root_squash,sync)                                     
::::::::::::::
f17bad/exports
::::::::::::::
/ 192.168.1.0/24(rw,no_root_squash,sync)
/home 192.168.1.0/24(rw,no_root_squash,sync)
/extra 192.168.1.0/24(rw,no_root_squash,sync)
The /etc/hosts.allow and /etc/hosts.deny files are identical between the two machines. The /etc/hosts files are identical except that each of them has their own IP address as the first entry in their respective copy of that file.

Turning off the firewall on the F17 machine has no effect. That's what I'd anticipate, given that the two firewalls are set up identically.

Any ideas folks? I'm not sure how to continue troubleshooting this problem.

Thanks....

---------- Post added at 05:06 PM ---------- Previous post was at 09:00 AM ----------

Two new pieces of information. I should have said that this is with x86_64. Both the working systems and the now not-working system are x86_64. The other machines, which are also fine, but are Mandriva, are i686.

Also, I now notice that when I try to automount I get "SELinux has detected a problem." The details are:
Code:
The source process: /usr/bin/automount
Attempted this access: read
On this file: /etc/hosts
Well, of course it did. Maybe this is a slightly malconfigured SELinux out of the F17 box? I altered /etc/selinux/config changing SELINUX=enforcing to SELINUX=disabled. I'll reboot in a minute, and then maybe I'll know whether that's the cause.

Alright, everyone hold their breath while I try it.

---------- Post added at 05:16 PM ---------- Previous post was at 05:06 PM ----------

For everyone holding their breath, I got back here as quickly as I could. Disabling SELinux enables NFS on F17 x86_64. That seems like a bug to me. I'll report it.

Cheerio....
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  #2  
Old 12th June 2012, 02:54 AM
marko Offline
Registered User
 
Join Date: Jun 2004
Location: Laurel, MD USA
Posts: 5,997
linuxfirefox
Re: F17 NFS Trouble - rquotad not running?

Quote:
Well, of course it did. Maybe this is a slightly malconfigured SELinux out of the F17 box? I altered /etc/selinux/config changing SELINUX=enforcing to SELINUX=disabled. I'll reboot in a minute, and then maybe I'll know whether that's the cause.

Alright, everyone hold their breath while I try it
Just to make it easier in the future for you, if you just want to try something with selinux off, you don't have to reboot, just run as root:
Quote:
setenforce 0
Then do whatever you want to do that needs selinux off, then to reactivate it:
Quote:
setenforce 1
(note, 0 means Permissive and 1 means Enforcing )
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