Jan 18 04:30:35 box su[31905]: (pam_unix) session closed for user nobody Jan 18 04:26:46 box su[31905]: (pam_unix) session opened for user nobody by (uid=0) Jan 18 04:26:46 box su[31905]: + ??? root:nobody Jan 18 04:26:46 box su[31905]: Successful su for nobody by root Jan 18 04:26:46 box su[31903]: (pam_unix) session closed for user nobody Jan 18 04:26:46 box su[31903]: (pam_unix) session opened for user nobody by (uid=0) Jan 18 04:26:46 box su[31903]: + ??? root:nobody Jan 18 04:26:46 box su[31903]: Successful su for nobody by root Jan 18 04:26:46 box su[31899]: (pam_unix) session closed for user nobody Jan 18 04:26:46 box su[31899]: (pam_unix) session opened for user nobody by (uid=0) Jan 18 04:26:46 box su[31899]: + ??? root:nobody Jan 18 04:26:46 box su[31899]: Successful su for nobody by root Jan 18 04:25:39 box su[31606]: (pam_unix) session closed for user amavis Jan 18 04:25:37 box su[31606]: (pam_unix) session opened for user amavis by (uid=0) Jan 18 04:25:37 box su[31606]: + ??? root:amavis Jan 18 04:25:37 box su[31606]: Successful su for amavis by root