There was a dns ip server number in the server manager panel where you can place a corporate dns ip server number.
Unless your server is actually within a corporate network, and there is a "slit DNS" configuration, where a private DNS server manages private names, then you shouldn't fill in any IP address in that slot.
Is there any way that I might be able to find out where it change or what the number was in a log file.
If the logs have not rotated away, you will find OLD and NEW records matching "dnscache=" in /var/log/messages.*
I could not ping the dns ip number that was in the box.
That doesn't tell you a lot - many hosts are configured to not respond to ping.
My system is now running like it should.
Good, so there is nothing for you to fix.
I found the dns ip address number 205.152.132.23 which was set as the corporate dns ip address number
That's:
dns.msy.bellsouth.net.
That's not a corporate DNS server, but a public resolver for bellsouth customers. Or at least it was, a long time ago. You don't need to use it.