Dovecot loads of ' PAM unable to dlopen...' messages
by lpwevers from LinuxQuestions.org on (#6F8TC)
Hi,
On my server (openSUSE 15.5) I've been running a mailserver with dovecot happily for some time. Only, since the past few days I'm experiencing issues with dovecot. It starts up nicely and then I can use it for some time. But after that I can see that the logging is filling with loads of messages like this:Code:
Oct 03 14:15:37 nami auth[10463]: pam_unix(dovecot:auth): check pass; user unknown
Oct 03 14:15:37 nami auth[10463]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=abe rhost=46.148.40.151
Oct 03 14:15:41 nami auth[10463]: PAM unable to dlopen(/lib64/security/pam_unix.so): libnsl.so.2: failed to map segment from shared object
Oct 03 14:15:41 nami auth[10463]: PAM adding faulty module: /lib64/security/pam_unix.so
Oct 03 14:15:41 nami auth[10463]: PAM unable to dlopen(/lib64/security/pam_cracklib.so): libcrack.so.2: failed to map segment from shared object
Oct 03 14:15:41 nami auth[10463]: PAM adding faulty module: /lib64/security/pam_cracklib.so
Oct 03 14:15:41 nami auth[10463]: PAM unable to dlopen(/lib64/security/pam_systemd.so): libpam_misc.so.0: failed to map segment from shared object
Oct 03 14:15:41 nami auth[10463]: PAM adding faulty module: /lib64/security/pam_systemd.so
Oct 03 14:15:41 nami auth[10463]: PAM unable to dlopen(/lib64/security/pam_umask.so): /lib64/security/pam_umask.so: failed to map segment from shared object
Oct 03 14:15:41 nami auth[10463]: PAM adding faulty module: /lib64/security/pam_umask.so
Oct 03 14:15:41 nami auth[10463]: PAM unable to dlopen(/lib64/security/pam_warn.so): /lib64/security/pam_warn.so: failed to map segment from shared object
Oct 03 14:15:41 nami auth[10463]: PAM adding faulty module: /lib64/security/pam_warn.so
Oct 03 14:15:41 nami auth[10463]: PAM unable to dlopen(/lib64/security/pam_deny.so): /lib64/security/pam_deny.so: failed to map segment from shared object
Oct 03 14:15:41 nami auth[10463]: PAM adding faulty module: /lib64/security/pam_deny.so
Oct 03 14:15:43 nami auth[10463]: PAM unable to dlopen(/lib64/security/pam_unix.so): /lib64/security/pam_unix.so: failed to map segment from shared object
Oct 03 14:15:43 nami auth[10463]: PAM adding faulty module: /lib64/security/pam_unix.soAnd after that, the only thing I can do is restart dovecot to get things working again. It's now so bad that I have a cron-job that restarts it every two minutes to have something that's at lease somewhat workable.
There have been no big changes on the server for some time now, only the installation of security fixes. (And I did roll them back without result).
Any idea what can be causing this? This is becoming quite annoying.
On my server (openSUSE 15.5) I've been running a mailserver with dovecot happily for some time. Only, since the past few days I'm experiencing issues with dovecot. It starts up nicely and then I can use it for some time. But after that I can see that the logging is filling with loads of messages like this:Code:
Oct 03 14:15:37 nami auth[10463]: pam_unix(dovecot:auth): check pass; user unknown
Oct 03 14:15:37 nami auth[10463]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=abe rhost=46.148.40.151
Oct 03 14:15:41 nami auth[10463]: PAM unable to dlopen(/lib64/security/pam_unix.so): libnsl.so.2: failed to map segment from shared object
Oct 03 14:15:41 nami auth[10463]: PAM adding faulty module: /lib64/security/pam_unix.so
Oct 03 14:15:41 nami auth[10463]: PAM unable to dlopen(/lib64/security/pam_cracklib.so): libcrack.so.2: failed to map segment from shared object
Oct 03 14:15:41 nami auth[10463]: PAM adding faulty module: /lib64/security/pam_cracklib.so
Oct 03 14:15:41 nami auth[10463]: PAM unable to dlopen(/lib64/security/pam_systemd.so): libpam_misc.so.0: failed to map segment from shared object
Oct 03 14:15:41 nami auth[10463]: PAM adding faulty module: /lib64/security/pam_systemd.so
Oct 03 14:15:41 nami auth[10463]: PAM unable to dlopen(/lib64/security/pam_umask.so): /lib64/security/pam_umask.so: failed to map segment from shared object
Oct 03 14:15:41 nami auth[10463]: PAM adding faulty module: /lib64/security/pam_umask.so
Oct 03 14:15:41 nami auth[10463]: PAM unable to dlopen(/lib64/security/pam_warn.so): /lib64/security/pam_warn.so: failed to map segment from shared object
Oct 03 14:15:41 nami auth[10463]: PAM adding faulty module: /lib64/security/pam_warn.so
Oct 03 14:15:41 nami auth[10463]: PAM unable to dlopen(/lib64/security/pam_deny.so): /lib64/security/pam_deny.so: failed to map segment from shared object
Oct 03 14:15:41 nami auth[10463]: PAM adding faulty module: /lib64/security/pam_deny.so
Oct 03 14:15:43 nami auth[10463]: PAM unable to dlopen(/lib64/security/pam_unix.so): /lib64/security/pam_unix.so: failed to map segment from shared object
Oct 03 14:15:43 nami auth[10463]: PAM adding faulty module: /lib64/security/pam_unix.soAnd after that, the only thing I can do is restart dovecot to get things working again. It's now so bad that I have a cron-job that restarts it every two minutes to have something that's at lease somewhat workable.
There have been no big changes on the server for some time now, only the installation of security fixes. (And I did roll them back without result).
Any idea what can be causing this? This is becoming quite annoying.