Dear all, reading the Cluster Authentication (LDAP,AD) thread which was posted at the end of last year reminds me of a problem we are having.
For our Ubuntu 14 virtual machines we are authenticating against AD and I am using the nslcd daemon to do that. This is working very well in a shell, i.e. when I am doing this in a shell: $ su -l USER It is fast, it is creating the home directory if I need it (or not if I want to mount the file space elsewhere and use a local home) and the standard lookup tools like $ getent password USER are fast as well. However, and here is where I am stuck: when I want to log in to the machine using the GUI, this takes forever. We measures it and it takes up to 90 sec. until it finally works. I also noticed that it is not reading the /etc/nslcd.conf file but either /etc/ldap.conf or /etc/ldap/ldap.conf. The content of the ldap.conf file is identical with the nslcd.conf file. I am using TLS and not SSL for the secure connection . Furthermore, and here I am not sure whether it is the same problem or a different one, if I want to ssh into the Ubuntu VM, this also take a very long time (90 sec) until I can do that. Strangely enough, our HPC cluster is using nslcd as well (I used that nslcd.conf file as a template for the Ubuntu setup), authenticating against the same AD and that works instantaneous. Does anybody has some ideas of where to look at? It somehow puzzles me. I am a bit inclined to say the problem is within Ubuntu 14 as the cluster is running CentOS and my Debian chroot environment ist Stretch. All the best from London Jörg _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
