I have two CentOS linux servers. One is dev and the other is prod. Dev is internal only and prod is exposed on port 80. Both built at the same time and both configured pretty closely to the same with, perhaps, a few deviations on the dev box along the way...
They've always been within a day of each other when notifying me of updates. However, that changed this week.
Last weekend the dev box notified me of 3 updates. Kernel, kernel-headers and kernel-devel. I applied them. The prod box has yet to need those.
Yesterday, the dev box notified me of 178 updates. I just manually ran a sudo yum update on prod. Still needs none.
Should I be concerned? Anything specifically that I should check? I can add the list of 178 packages on request...
Prod uname -a
Linux EFhermes 2.6.18-164.el5 #1 SMP Thu Sep 3 03:33:56 EDT 2009 i686 i686 i386 GNU/Linux
Dev uname -a
Linux EFhermesDev 2.6.18-164.2.1.el5.plus #1 SMP Fri Oct 9 12:34:43 EDT 2009 i686 i686 i386 GNU/Linux
3 hours after posting this (24 hours after receiving update notifications for dev) I just got notified by prod that he has 161 updates available... still no kernel, but lots of other "major" components.