How to change server name in Sharepoint "after rename the computer name"

How to change server name in Sharepoint "after rename the computer name":

1- Open CMD as adminstrator.
2- Browse "C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\BIN"
3- Type: 
stsadm -o renameserver -oldservername <OldServerName> -newservername <NewServerName>

4- To manage alternate access mappings browse the share point administration site:

    a. On the top navigation bar, click Operations.

    b. On the Operations page, in the Global Configuration section, click Alternate access mappings.

    ref: http://technet.microsoft.com/en-us/library/cc263521(v=office.12).aspx