We use the following scheme to limit access to nodes of a cluster: limit.conf containsa line: * hard maxlogins 0 and add as the last line: username hard maxlogins 18 where username identifies the user to whom the node was assigned (by PBS). And delete the last line when the user job is finished. This works fine as long as the username is lowercase, but doesn't work when it is uppercase - the user is not allowed to make a remote login. Is this a feature or a bug? We have pam 0.74 installed (the version that SuSE distributes for 7.3) Regards Willy ----------------------------------------------------------- Willy Weisz European Centre for Parallel Computing at Vienna (VCPC) Liechtensteinstrasse 22 A-1090 Wien Tel: (+43 1) 4277 - 38824 Fax: (+43 1) 4277 - 38818 e-mail: weisz@vcpc.univie.ac.at