[BBLISA] ypbind and ICMP host unreachable?

[Rudie, Tony]

Are you running ypbind -broadcast?  If so, you have to have ypserv running on the same subnet.  The alternative is to add IP addresses to the (I think) /var/yp/binding/<domainname>/ypservers file, and then ypbind will not run in broadcast mode.  We hate doing this because it's another item to maintain locally on every client.

The other thing we are often able to do is get the network guys to add "helper" statements to the routers so that ypbind DOES get routed to specific (ypserver) hosts.  I'm considerably fuzzy about how they do that, but I can get details if you're interested.   


 - Tony Rudié 

-----Original Message-----
From: bblisa-bounces at bblisa.org [mailto:bblisa-bounces at bblisa.org] On Behalf Of Scott Ehrlich
Sent: Wednesday, October 24, 2007 10:03 AM
To: bblisa at bblisa.org
Subject: [BBLISA] ypbind and ICMP host unreachable?

Brief refresher again -

RedHat Enterprise 5 server, CentOS 5 clients.  Test setup, everything works 
fine.  Production environment, clients cannot bind to yp on server.

In trying to track down the ypbind problem I'm having, I discovered tcpdump 
produces ICMP host <yp server> unreachable only when ypbind is run.

I'm doing some googling now to try and find an answer.

I'd be happy to entertain any feedback this list has, too.

Thanks.

Scott

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