This post will cover setting Google for your namesever resolvers in CentOS.
It's a simple task, but my OnApp does not set them for my CentOS templates for some reason.
If they have not been set, the first time you will likely notice is when you go to use yum and it throws PYCURL errors.
Log in as root via SSH and issue 'vi /etc/resolv.conf' to edit your resolv.conf file:
[root@david etc]# vi /etc/resolv.conf
If, like me, you have no nameserver resolvers set, you will see something like this:
# Automatically generated by OnApp (3.0.8) domain davidghedini.com ~ ~
Hit "i" for insert and add the Google Nameservers (18.104.22.168 and 22.214.171.124) as shown below, one per line:
# Automatically generated by OnApp (3.0.8) domain davidghedini.com nameserver 126.96.36.199 nameserver 188.8.131.52
Hit Escape and then ':wq' to save your changes