Updating the nodes

Updating the nodes

Work done December 2018

sudo subscription-manager remove --all
sudo subscription-manager unregister
sudo subscription-manager clean
sudo subscription-manager register
sudo subscription-manager refresh
sudo subscription-manager attach --auto

then

yum clean all
yum update

If you see an error

http://apt.sw.be/redhat/el6/en/x86_64/rpmforge/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 503 Service Unavailable"

It's due to the rpmforge repo no longer existing at that location. removing /etc/yum.repos.d/rpmforge.repo fixes the error.

I then installed ssmtp using

wget http://dl.fedoraproject.org/pub/epel/6/x86_64/Packages/s/ssmtp-2.61-22.el6.x86_64.rpm
rpm -ivh ssmtp-2.61-22.el6.x86_64.rpm