When you really get to know the advanced functions in Microsoft Excel, one function that you will no doubt begin to use frequently is the IF function. In automating your calculations and data manipulation, the IF function will give you some of the same features that professional developers often use to design programs.
Pointer (PTR) resource records that are created automatically when you add a host (A or AAAA) resource record to a zone will be deleted automatically if the corresponding host (A or AAAA) resource record is deleted.You can complete this procedure using either the DNS Manager snap-in or the dnscmd command-line tool.lick OK to add the new record to the zone. To add a pointer (PTR) resource record to a reverse lookup zone using a command line. Open a command prompt. To open an elevated Command Prompt window, click Start, point to All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.
Display the DNS records for the domain by selecting the domain folder in the tree view. Right-click an existing Name Server record in the view pane, and then select Properties. This opens the Properties dialog box for the domain with the Name Servers tab selected, as shown in Figure 19-11. Click Add.ou create a new host entry with A and PTR records by doing the following: In the DNS console, expand the Forward Lookup Zones folder for the server you want to work with. Right-click the domain you want to update, and then from the pop-up menu, choose New Host.