LDAP server gone -> impossible to login locally!
ohartman at zedat.fu-berlin.de
Tue Sep 22 11:53:11 UTC 2009
I run into trouble with FreeBSD and LDAP on a regular basis!
Sometimes it is necessary to log in onto a bunch of servers with no LDAP
service responding, due to service, crash, eletrically disconnetion,
whatever. The problem is: I can't.
Using all prerequisits from ports (pam_ldap/nss_ldap/ldap as most
recent) my /etc/nsswitch.conf looks like this as it has been the most
reasonable (and only working!) solution for the past 2 years:
passwd: ldap [unavail=continue notfound=continue] files [success=return
The same for group. Intention is to have root- or wheel-group access of
local managed service users without timeouts due to irresponsible LDAP
servers. But it does not work!
If the LDAP service is not available, FreeBSD 8.0/AMD64-RC1 (most recent
source/build) does nothing for approx. 120 seconds and sometimes much
longer when trying to login as root from console. In some cases, the
same box under the very same conditions refuses login due to a timeout,
After a couple of time and lots of questiosn, the above showed
nsswitch.conf entries were evaluated as those which should work, but
exchanging 'ldap' and 'files' results in a never-can-login-situation,
when LDAP isn't responsible.
Is there a way to shorten the timeouts and if yes, where to look for? 2
minutes for a login within services sessions is too much, a waste of
time. Our network is very fast, so 30 seconds should be enough ...
Any help appreciated.
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