Nov 11 15:54:56 [sudo] PAM unable to dlopen(/lib64/security/pam_unix.so): /lib64/security/pam_unix.so: undefined symbol: crypt_checksalt, version XCRYPT_4.3 Nov 11 15:54:56 [sudo] PAM adding faulty module: /lib64/security/pam_unix.so Nov 11 15:54:56 [sudo] enyalios : PAM account management error: Module is unknown ; TTY=pts/29 ; PWD=/root ; USER=root ; COMMAND=/bin/bash