[CentOS] Several files's checksum change without reason
kadafax
kadafax at gmail.comSat Aug 12 21:15:20 UTC 2006
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William L. Maltby wrote: > On Sat, 2006-08-12 at 19:10 +0200, kadafax wrote: > >> Hi list, >> I'm a bit worried here. On a server, Centos 4.3 fully-patched SELinux >> activated, Osiris (a decentralized scanner for files changes on distant >> servers) signaled me several changes on files who were not (at first >> sight) affected by a recent update (the list is below). >> Is there a logic explanation for those changes to happen ? The "rpm -Va" >> command does not output md5sum change for those files. >> > > Date/time looks like it might be a cron scheduled event. My bet is > prelink. Have you looked at the crontabs and/or logs? > prelink appears there: [root at server cron]# ll /etc/cron.daily/ total 76 lrwxrwxrwx 1 root root 28 Jun 29 20:27 00-logwatch -> ../log.d/scripts/logwatch.pl -rwxr-xr-x 1 root root 418 Feb 21 2005 00-makewhatis.cron -rwxr-xr-x 1 root root 276 Feb 21 2005 0anacron -rwxr-xr-x 1 root root 117 Mar 31 2005 epylog.cron -rwxr-xr-x 1 root root 180 Aug 23 2005 logrotate -rwxr-xr-x 1 root root 2133 Dec 1 2004 prelink -rwxr-xr-x 1 root root 104 Jan 1 2006 rpm -rwxr-xr-x 1 root root 121 Aug 22 2005 slocate.cron -rwxr-xr-x 1 root root 286 Feb 21 2005 tmpwatch -rwxr-xr-x 1 root root 158 Feb 18 15:38 yum.cron Nothing in logs ( grep cron /var/log/messages*) Is it possible for a cron job to modify binary's checksum and inode ? > >> <snip>^2 >> > >
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