Red Hat Registration
From MyWiki
subscription-manager list --available --all
or
subscription-manager list ( to see the current machine )
Check for software updates - gpk-update-viewer
Update the operating system - yum update
Install a specific package - yum install vsftpd
To update a specific package - yum update bind
Checking a certificate :
openssl s_client -connect xmlrpc.rhn.redhat.com:443 -CAfile /usr/share/rhn/RHNS-CA-CERT
