Solved

Safe Microsoft address

Posted on 2006-11-20
1
1,358 Views
Last Modified: 2008-02-07
I've been trying to lock down my home computer and would like to start by only allowing Microsoft update internet addresses.  It seems 207.46.0.0 255.255.0.0 and 65.52.0.0 to 65.55.255.255 are registered to Microsoft as seen by a "whois" but other addresses are not so obvious.  Is there a location that lists all the addresses that Microsoft might what to use to "call home"?
0
Comment
Question by:alante
1 Comment
 
LVL 38

Accepted Solution

by:
Rich Rumble earned 250 total points
ID: 17980540
Their DNS or someone with a lot of time mapping the M$ address space.
 host update.microsoft.com (if not on *nix use: http://www.checkwhois.org/ )
update.microsoft.com is an alias for update.microsoft.com.nsatc.net.
update.microsoft.com.nsatc.net has address 64.4.23.190
update.microsoft.com.nsatc.net has address 65.55.192.29
update.microsoft.com.nsatc.net has address 207.46.209.124

BIG sites like M$, Google, Yahoo, Amazon etc... use round-robin DNS so that one IP doesn't get all the traffic, and further, those IP's are also load balanced with load-balancer appliances like the Cisco CSS, F5, BigIP etc... so there can actually be hundreds and thousands of servers that answer to those public ip's. Try pinging google.com every few minutes, you'll likely get a different IP most of the time.
-rich
0

Featured Post

Save on storage to protect fatherhood memories

You're the dad who has everything. This Father's Day, make sure your family memories are protected. My Passport Ultra has automatic backup and password protection to keep your cherished photos and videos safe. With up to 3TB, you have plenty of room to hold the adventures ahead.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Most of the applications these days are on Cloud. Cloud is ubiquitous with many service providers in the market. Since it has many benefits such as cost reduction, software updates, remote access, disaster recovery and much more.
How important is it to take extra precautions to protect your online business? These are some steps you can take to make sure you're free of any cyber crime.
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, just open a new email message. In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, Just open a new email message.  In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now