I always try to standardize here I can to make my life easier. When setting up SharePoint you can choose the port number for Central Admin. I always suggest using the same port number whenever possible. So what about when you’re working for a company that already has several SharePoint farms set up?
Our trust PowerShell once again comes to the rescue. Using the Set-SPCentralAdministration cmdlet, you can change the port hosting your Central Administration web application.
Set-SPCentralAdministration –Port 7000
You can read more about the Set-SPCentralAdministration cmdlet here: http://technet.microsoft.com/en-us/library/ff607832.aspx
While I usually have my farms’ Central Admins bookmarked, sometimes when I’m on a remote computer I just want to type in the address and add the my standard central admin port. Thanks to PowerShell I can quickly and easily remember my standard port without having to rely on bookmarks.