Recently, I clean up the yum cache, then I found that I don't have any update when I do yum update.
I am not sure whether there is actually no update or something is wrong.
yum clean all
rm -rf /var/cache/yum/*
yum update
Loaded plugins: replace, rhnplugin, security This system is receiving updates from RHN Classic or RHN Satellite. Excluding Packages from Red Hat Enterprise Linux (v. 5 for 64-bit x86_64) Finished Skipping security plugin, no data Setting up Update Process No Packages marked for Update
yum repolist all
... epel, Extra Packages for Enterprise Linux 5 - x86_64, enabled: 6,781 epel-debuginfo, Extra Packages for Enterprise Linux 5 - x86_64 - Debug, disabled rhel-x86_64-server-5, Red Hat Enterprise Linux (v. 5 for 64-bit x86_64), enabled: 16,487+311 ...
Last a few lines of yum.log
Jul 01 14:57:09 Updated: openssl-perl-0.9.8e-36.el5_11.x86_64 Jul 01 14:57:10 Updated: openssl-0.9.8e-36.el5_11.i686 Jul 01 14:57:12 Updated: openssl-devel-0.9.8e-36.el5_11.i386 Jul 10 09:15:31 Updated: dhcpv6-client-1.0.10-22.el5_11.x86_64
Under /etc/yum.repos.d (I don't see rhel-x86_64-server-5 here?)
ius-archive.repo
ius-dev.repo
ius.repo
ius-testing.repo
rhel-debuginfo.repo
rpmforge.repo
pgdg-92-redhat.repo
kbs-el5-rb187.repo
mirrors-rpmforge
mirrors-rpmforge-extras
mirrors-rpmforge-testing
epel.repo
varnish.repo
epel-testing.repo
Best Answer
The line "This system is receiving updates from RHN Classic or RHN Satellite." in your yum output is a notification from the yum rhnplugin, that the system is registered with your local Satellite server of RHN Classic.
Software channels belonging to your RHN classic or Satellite subscription don't appear as repo files in /etc/yum.repos.d but are managed from the satellite server through your system ID and the rhnplugin.
Have you considered the thought that your system is simply completely up to date for RHEL 5?
Because those recently installed OpenSSL packages match RSA-2015:1197 and the dhcp client version RHBA-2015:1212, which are momentarily some of the most recent errata.