Subject: Re: ypbind hangs as of current from midday yesterday (kern+user)
To: None <firstname.lastname@example.org>
From: Christos Zoulas <email@example.com>
Date: 07/04/2007 03:12:04
In article <firstname.lastname@example.org>,
Wraukon the Excellent <email@example.com> wrote:
>Hint: Don't use NIS for groups. If NIS can't find its server, you
>won't even be able to log in as root.
>On 7/1/07, Manuel Bouyer <firstname.lastname@example.org> wrote:
>> On Thu, Jun 28, 2007 at 11:33:51AM +1000, Sarton O'Brien wrote:
>> > On Wed, 27 Jun 2007 07:08:06 pm Manuel Bouyer wrote:
>> > > As soon as I ^C the ssh
>> > > > client in the other console logs in.
>> > >
>> > > It's probably because it's waiting on ypbind. Once ypbind is killed
>> > > nsswitch only uses local files again.
>> > Does the ordering matter? I have files first then nis. I found this
>> > strange as it _is_ the server and the auth files reside there.
>> When login, the sytems needs to look at all the groups to know in which groups
>> the user is. As long as NIS is enabled for groups the system will look at
>> it at login time, whichever order is specified in nsswitch.conf for group
>> > Is ypbind suppose to hang indefinitely?
>> I believe it'll wait for a server to reply, yes
>> > Does anyone actually have a current
>> > system running nis?
>> I just set up a test nis domain on a domU. With default files in /etc it
>> came up without troubles.
>> Do you have NIS or DNS enabled for hosts in /etc/nsswitch.conf ? It could
>> be the cause of the hang. Especially if NIS is enabled and the hosts
>> involved in NIS startup aren't listed in /etc/hosts (with the proper names),
>> there will be a deadlock.
>> Are the hosts in the ypservers map and /var/yp/binding/<domain>.ypservers
>> properly recorded in /etc/hosts ?
Looks like it is broken... It works if I set the server manually with ypserv.