[CentOS] NIS problems after installation
Steve Strong
strong at crwash.org
Tue Jul 17 07:15:50 UTC 2007
Paul Heinlein wrote:
> On Mon, 16 Jul 2007, Steve Strong wrote:
>
>> so, i just installed CentOS on our server and set up NIS using the
>> same configuration as on our other server, but the clients' ypbind
>> services complain that although they can find the correct server, the
>> server does not respond to requests.
>>
>> to debug this, i've:
>>
>> * pinged the server using its ip and it's name
>> * ssh'ed to the server using it's ip and name
>> * ftp'd to the server using its ip and name
>> * used dig to get the server's address from itself (dig @stretch
>> stretch.washcslab.org
>> * checked to see that nfs and ypserv are running
>> * checked to see if stretch could bind to it's own nis server
>>
>>
>> and all of these were successful. so, I also:
>>
>> * run ypserv (on the server) and ypbind (on the server) both in
>> debug mode and gotten no errors
>> * run ypserv (on the server) and ypbind (on the CLIENT) both in
>> debug mode and gotten no errors
>>
>> any help with this really gnarly bug would be greatly appreciated!
>> steve
>
> Is ypserv compiled against libwrap? Does there need to be a
> hosts.allow entry?
>
> Is SELinux enabled? Does /var/log/audit/audit.log show anything?
>
> Is iptables in use? Does an exception need to be made?
>
> Can you attach strace to ypserv and see anything of significance?
>
ypserv:
i didn't compile it, i used the rpm that is standard with an
installation ---
selinux:
disabled (which i hate)
iptables:
how do i go about making an exception -- this seems like the problem,
since there is no report of an attempt to connect to ypserv by a client
in the debug output of a call to start ypserv
--
Steve Strong
Math and Computer Science
Washington High School
2205 Forest Dr. SE
Cedar Rapids, IA 52403
http://crwash.org
mailto:strong at crwash.org
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