I have  a couple of diskless workstations set up that use an NFS server 
for their root filesystems. I recently upgraded to Red Hat 7.1 from 
7.0. On these PCs, I find that I can no longer start X as a non-root 
user. The X server (XFree86_SVGA, since I use an old SIS 6326 chipset) 
would start and just sit there. On the console screen, it would just 
sort of hang and print dots before giving up with:

giving up.
xinit: Permission denied (errno 13): unable to connect to X server
waiting for X server to shut down.
xinit: Server error.

X works fine as root, or on a conventional PC that does not NFS-mount 
its root filesystem. Previously in Red Hat 7.0, I worked around this 
problem by adding the line:

auth    sufficient      /lib/security/pam_permit.so

to /etc/pam.d/xserver. This little hack no longer works in 7.1, 
however. Does anyone have suggestions on where I should be looking for 
permissions issues?

Back in the lpr-oldgeneration days, lpr could not work on an 
NFS-mounted filesystem either. It would release privileges after 
opening files, but NFS checks permissions on each access, not just when 
the file is open. Could a similar issue be at work here? LPRng, 
incidently, does not have this issue because the client does not write 
files.

Chris



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