Windows Update: What TCP port is used to get updates

From: Mike Beste (mbeste_at_fulcrum.net)
Date: 06/04/03 

Date: Tue, 3 Jun 2003 15:08:59 -0700

**Technet Plus Priority Response Consumer**

On my DMZ I run a PIX firwall. I restrict what ports the
Windows 2000 servers can use to only port 53 and port 80.
When I go to the Windows Update site and try to get the 25
updates I know should be there for me...the following
message is displayed in the browser:

"There are no updates available for your computer. Try
back again later."

I am assuming that Windows Update uses a specific port
when it reports back to the client (hopefully not random
UDP ports)...but nevertheless, I really need to identify
what is causing this issue.

Thank you for your response.

Relevant Pages

  • Re: keeping ports open
    ... If a port is open, it means that 1) a software or service is running on your ... and 2) you're not using a firewall or your firewall isn't ... Use firewall software and hardware and antivirus software that is ... Follow the instructions for hardening Windows and IIS at ...
    (microsoft.public.security)
  • [Full-Disclosure] ron1n phone home, episode 4
    ... Hacking from Windows 3.x, 95 and NT ... Use secret Windows 95 DOS commands to track down and port surf computers ... Download hacker tools such as port scanners and password crackers designed ... Now you have the option of eight TCP/IP utilities to play with: telnet, ...
    (Full-Disclosure)
  • Re: How to Maintain an IIS Server?
    ... > server running on a Windows 2000 server. ... before a firewall and antivirus have been installed]. ... open ports; however, this will not identify which program is using the port. ...
    (microsoft.public.inetserver.iis.security)
  • Re: How to Maintain an IIS Server?
    ... >> server running on a Windows 2000 server. ... > before a firewall and antivirus have been installed]. ... > program or executable using that port. ...
    (microsoft.public.inetserver.iis.security)
  • RE: xp pro sharing printer
    ... How to troubleshoot network printing problems in Windows XP ... SMB-connected print server ... Incompatible print driver ... and then redirect the port to the network server. ...
    (microsoft.public.windowsxp.security_admin)
Loading