a cname would only be used if you were trying to redirect http://servername.mydomain to http://servername.mydomain.com
Enter the Name and IP address for the server and Make sure create pointer record is checked.
Explain what you are talking about
CNAME as suggested by @Cliff "IF" you wanted to just redirect http://servername-server to http://timemanagement.mydomain.com
In order to access its main internal website I need to use http://servername-server or server's IP address.
How do I change this name to be http://timemanagement.mydomain.com?
What type of a DNS entry do I need to add (under my mydomain.com forward lookup zone?) to make it work?