[CentOS] Fedora and CentOS no longer on speaking terms

Fri Aug 19 14:43:23 UTC 2011
Tony Schreiner <tony.schreiner at bc.edu>

On Aug 19, 2011, at 10:39 AM, Anne Wilson wrote:

> I have just upgraded my server from CentOS 5 to CentOS 6 and am having
> connectivity problems.  My laptop runs Fedora 14, and I have been in  
> the habit
> of mounting data partitions on my server by fstab entries.  Since  
> the update
> I've not been able to do that.  On watching the messages during a  
> reboot I saw
> a statement that the connection was denied by the server (where are  
> those
> messages stored so that I can quote accurately?).
>
> I have temporarily disabled both the firewall and selinux, and the  
> problem
> persists, so clearly they are not the cause.  Logwatch has the  
> following
> section which may or may not be connected:
>
> --------------------- Connections (secure-log) Begin  
> ------------------------
>
>
> Userhelper executed applications:
>    anne -> system-config-users  as root:  1 Time(s)
>
> **Unmatched Entries**
>    polkitd(authority=local): Operator of unix-
> session:/org/freedesktop/ConsoleKit/Session2 successfully  
> authenticated as
> unix-user:root to gain TEMPORARY authorization for action
> org.fedoraproject.config.firewall.auth for system-bus-name::1.88
> [/usr/bin/python /usr/bin/system-config-firewall] (owned by unix- 
> user:anne): 1
> Time(s)
>    polkitd(authority=local): Registered Authentication Agent for  
> session
> /org/freedesktop/ConsoleKit/Session1 (system bus name :1.24
> [/usr/libexec/polkit-gnome-authentication-agent-1], object path
> /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8): 1  
> Time(s)
>    polkitd(authority=local): Registered Authentication Agent for  
> session
> /org/freedesktop/ConsoleKit/Session2 (system bus name :1.45
> [/usr/libexec/polkit-gnome-authentication-agent-1], object path
> /org/gnome/PolicyKit1/AuthenticationAgent, locale en_GB.utf8): 1  
> Time(s)
>    polkitd(authority=local): Unregistered Authentication Agent for  
> session
> /org/freedesktop/ConsoleKit/Session1 (system bus name :1.24, object  
> path
> /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)  
> (disconnected
> from bus): 1 Time(s)
>    polkitd(authority=local): Unregistered Authentication Agent for  
> session
> /org/freedesktop/ConsoleKit/Session6 (system bus name :1.214, object  
> path
> /org/gnome/PolicyKit1/AuthenticationAgent, locale en_GB.utf8)  
> (disconnected
> from bus): 1 Time(s)
>
> ---------------------- Connections (secure-log) End  
> -------------------------
>
> An example fstab line is
>
> /Data1			/nfs4exports/Data1	none	bind		0 0
>
> Under CentOS 5 this was mounted by the exports line:
>
> /nfs4exports/Data1   
> 192.168.0.0/24(rw,insecure,no_subtree_check,nohide)
>
> Following advice, I have changed this to:
>
> /Data1/ 192.168.0.0/255.255.255.0 *(rw,sync,insecure,no_all_squash)
>
> That hasn't helped at all.
>
> I'm completely at a loss, and really need to get this connection  
> working
> again.  I've done lots of googling and reading, but just feel to be  
> digging an
> ever-deeper hole.  All help appreciated.
>
> Anne
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NFS v4 problems maybe. Try setting a value for  Domain  in

/etc/idmapd.conf

on both systems (the same for both).

Tony