When openssh-2.9.9p2 is configured with PAM on Solaris 7 (using the system's default /etc/pam.conf) the passwd authentication works: debug1: PAM Password authentication accepted for user "strube" ... debug1: PAM setting tty to "/dev/pts/1" debug1: PAM establishing creds but on logout a message is seen: debug1: Cannot delete credentials[7]: Permission denied Why does this occur? Does it have adverse effects (e.g., credentials accumulating, memory leak etc.)? How can it be avoided?