Custom puppet master hostname error hostname was not match with the server certificate

 When you want to use custom hostname for puppet it shows the following error.
=============
err: Could not retrieve catalog from remote server: hostname was not match with the server certificate
warning: Not using cache on failed catalog
err: Could not retrieve catalog; skipping run
err: Could not send report: hostname was not match with the server certificate
==============


 In my case I wanted to use the default hostname "puppet" . Add the following entries to puppet master configuration file /etc/puppet/puppet.conf

 certname = puppet

stop puppet master; mv /var/lib/puppet /var/lib/puppet-bak

start puppet

 Ensure that the cert is loaded with the name you want.

==================
puppet cert print $(puppet master --configprint certname)|grep Subject

        Subject: CN=puppet
==================


If the CN field is showing your hostname then this would not work.


Now you can use puppet agents to connect using


puppet agent --test --server puppet








Ensure that you have entries in /etc/hosts for puppet master