Hi, any help with this issue would be greatly appreciated: I have pam_radius_auth configured on redhat enterprise (just for "sshd" and "login"), and the authentication is working properly. Unfortunately, when I log in via SSH, after some time (fairly brief), the connection simply terminates. I get no errors, and I have perused the pertinent logs, and I see absolutely NO indication that there is a problem. I did a sniffer trace, and it is the server side of the SSH connection that actually terminates it. The TCP connection is terminated gracefully with a TCP FIN sent by the server. I can't decode the SSH data further to determine if there is an error in the SSH protocol. It seems that the connection reset happens after a certain amount of data is passed, rather than an amount of time. I find it hard to believe that the RADIUS authentication would have any effect on encyrption key exchanges or anything like that, but I do not have this problem when I log in with an account that is NOT configured in RADIUS (also I remove the line in /etc/pam.d/login) At this point, I have no idea where to move forward with my troubleshooting efforts. Any ideas?