Addresses for Microsoft's Windows Update Servers

[Edward W]

We have several machines that have Automatic Updates on. These machines are
behind a firewall and we want to block all Internet traffic except to allow
updates from Microsoft's update servers.

What are the addresses and ports that need to be open which will allow only
Microsoft updates to be downloaded to these machines?

--
Edward

[Ǝиçεl]

Hello Edward,

Try port 80 and port 443
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[Ǝиçεl]

I knew there was a piece of that question that I forgot to get to...

To add the Windows Update websites to a firewall exceptions list

• Windows Firewall ships with this version of Windows and should already
include these sites in the exceptions list. If you use a different firewall,
refer to the software publisher's help to see how to add these websites to
your firewall exceptions list:

• http://*.update.microsoft.com

• https://*.update.microsoft.com

• http://download.windowsupdate.com

Ǝиçεl
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