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Re: YP Questions



 Jerry, 

At one location, I have a NIS setup with Windows SFU being NIS masters 
(ack!), and RHEL4U3 boxes being slaves.  RHEL4U3 boxes with out-of-the-box 
ypserv would stop or become a "zombie" as you describe every few hours. 
Running it in debug mode didn't provide anything additionally useful. 
Updating ypserv (and ypbind and portmap) to the latest at the time did 
indeed resolve the problem on these particular boxes (currently at 
ypserv-2.13-18).  It has been running at this version since without any 
crashes.  I have a few hundred servers authenticating against a couple of 
RHEL4U3 NIS slaves and a few hundred user accounts all working without 
major issue.   

The only unusual behavior I see right now is that if you have a significant 
number of crons running (I have several hundred that might kick off at a 
given minute), at times the RHEL NIS servers might drop authentication 
requests.  This is the only time I see any trouble with them otherwise.   

Best of luck. 

Chris 


On 09-Jul-2008 08:45:07,  wrote: 
> 
> --Sig_/ixM6x45ru=eUfzhsathcJVn 
> Content-Type: text/plain; charset=US-ASCII 
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> 
> Currently I have a server running an unpatched RHEL 4 U3.  Because of 
> company policy, we can only use the specific releases approved for 
> development and testing. Currently the company is approving RHEL 4 U6.=20 
> 
> I currently have cron restarting ypserv every 5 minutes :-( because 
> ypserv tends to become a zombie. I have a backup yp server (running 
> RHEL 4 U2 (IA64). The versions of ypserv on RHEL are: 
> Update 2(IA64):  ypserv-2.13-5 
> Update 3(X86_64): ypserv-2.13-9 
> Update 6(X86_64): ypserv-2.13-18 
> 
> One question, does anyone know if they have seen problems with ypserv 
> on older versions of RHEL 4. The IA64 version was very stable, and I 
> currently use that as a backup server, but the system it is on is used 
> as a personal workstation. I will be upgrading that to RHEL 5 shortly.=20 
> 
> 
> --=20 
> -- 
> Jerry Feldman <[hidden email]> 
> Boston Linux and Unix 
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