Grant Access by IP Address, Subnet, or Domain
If you have a small number of clients who use newsgroups, you can create an exclusive group of computers that are allowed to access the server. Only these computers can access the NNTP virtual server. Computers that can access the server can be identified by IP address, subnet mask, or domain name.
Identify a permitted computer by IP address only if you assign IP
addresses statically. If a
To grant access by IP address, subnet, or domain:
Tip If you know only the name of the computer, click DNS Lookup. Type the name of the computer, and then click OK. If the IP address is resolved, it appears automatically in IP address.
Note By default, NNTP virtual servers grant all computers access to Exchange resources such as public folders and mailboxes. If you create groups of permitted users for one virtual server, the list applies to that virtual server only. To limit access to other virtual servers, you must add groups of computers to all virtual servers.