selinux strangeness

[Jamon Camisso]

Zbigniew Koziol wrote:
> This time I am not breaking threads? ;)
> 
> This is more of out of curiosity, not so much a problem. But it would be 
> nice to be able to play doom.
> 
> Centos 5.3 is here, which is supposed to be like RedHat Enterprise of 
> the same version.
> 
> I have xdosemu installed, an emulation of DOS. To play doom.
> 
> Sometime, not always, when I try to start xdosemu, I get this message:
> 
> /usr/bin/xdosemu: relocation error: /usr/lib/dosemu/libplugin_X.so: 
> symbol getenv, version GLIBC_2.0 not defined in file libc.so.6 with link 
> time reference
> 
> My intuition told me rightly that this is a message from selinux. So, I 
> go to menu
> System-> Administration -> Security Level and Firewall. I choose as root 
> SELinux tab, and disable again Selinux. Sometime that does help. 
> Sometime it does not...

LD_ASSUME_KERNEL will fix that.
Read http://people.redhat.com/drepper/assumekernel.html for more.

People tend to blame selinux for a lot of problems that they haven't 
encountered before, but generally, if your problem is selinux related, 
there will be a message in /var/log/messages and /var/log/audit/audit.log.

selinux isn't the boogeyman (turn it back on), though I dislike working 
with it sometimes since the logged messages are rather verbose and yet 
still somewhat cryptic.

Jamon
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