[sudo-users] cannot sudo after short time - ldap/nis configuration

[Jason Hamilton]

Hi all,

I've not been very successful finding a fix for this on google, so any 
help is appreciated.

Running centos 5, with sudo "sudo-1.6.9p17-3.el5_3.1". The system is 
configured with ldap/nis and sudoers_base is also configured through 
LDAP. Everything works great upon initial login, I can 'sudo' whatever 
and it works - then a little while later - maybe 5 minutes, I get:

me at foo:[12:03:36 PM]~$ sudo ls
sudo: uid 1000 does not exist in the passwd file!
me at foo:[12:04:25 PM]~$

now, if I run "getent passwd me"
the system looks at ldap, and gives me the user data and then sudo works 
again.

I'm running nscd on the system and it appears to be working properly. Is 
there something that I'm missing? I don't really want to run 'getent' in 
a cron or some other hinky workaround.

Thanks for any tips.

-- 

-Jason