I'm running FC1 2.4.22-1.2197.nptlsmp on a Dell Precision 530 with dual P4's. The hostname of this systems is main1. This system has a working Compaq DLT4000 which works great locally, using dump/restore. The controller for this drive is an Initio 9200, which is a SCSI U/W device. The problem is that I am unsuccessful in my attempts to backup up my file server named ns1, which is an rh9 machine. I am pretty sure the problem lies somewhere in the pam authentication stuff, and I have made various changes to /etc/securetty, /etc/pam.d/login, etc., all to no avail. The error message which results from the command, run on ns1, "/sbin/dump -0uf main1:/dev/st0 /" occurs in the messages file on main1, is: Aug 1 10:42:27 ns1 login(pam_unix)[30063]: auth could not identify password for [main1]. "root", "login", "rexec", and "rlogin" are present in /etc/securetty on main1 (the backup machine), along with all the tty?'s. /etc/pam.d/login contains on the backup machine contains: #%PAM-1.0 auth optional pam_nologin.so auth optional pam_securetty.so auth optional pam_stack.so service=system-auth account required pam_stack.so service=system-auth password optional pam_stack.so service=system-auth session required pam_stack.so service=system-auth session optional pam_console.so hosts.allow on main1 has ALL: ALL I have gotten dump to work remotely from rh9 to rh9, but can't seem to get it going from rh9 to fc1. Anybody done this who might have a hint or two? Thanks. Brad Alpert