Re: Slow ssh logins when running nslcd

[Daniel Macdonald <D.R.MacDonald [at] salford.ac.uk>]

I fixed this (I think) by removing my ssh known_hosts file.

Thanks for your help Arthur!

 

DANIEL MACDONALD Specialist Technical Demonstrator School of Computing, Science & Engineering Room 145, Newton Building, University of Salford, Manchester M5 4WT T: +44(0) 0161 295 5242 D.R.MacDonald@salford.ac.uk  /  www.salford.ac.uk

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From: Arthur de Jong
Sent: Sunday, February 13, 2022 11:20
To: Daniel Macdonald; nss-pam-ldapd-users@lists.arthurdejong.org
Subject: Re: Slow ssh logins when running nslcd

On Thu, 2022-01-27 at 17:21 +0000, Daniel Macdonald wrote:

> If I stop the nslcd service, ssh logins to this server are instant
> (with keys) and the password prompt appears immediately if the user
> doesn't have a key configured however when nslcd is running ssh
> logins take about 20 seconds or longer. Authenticating against LDAP
> isn't slow either unless sshd is running.

What would be helpful in debugging this is the logs from the PAM stack
and from nslcd. You can specify a loglevel of debug in nslcd.conf to
get more detailed information but with a timeout I would expect an
error to be logged.

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