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Port 135 opened on Windows Server 2003

Posted on 2007-03-18
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Last Modified: 2013-12-04
Hi,

I'm running a Windows Server 2003 with Windows Firewall. It runs IIS as FTP and HTTP server.

Instead of opening ports 21 and 80 at the firewall, I decided to add "inetinfo.exe" (IIS) to the exception list - which should be about the same.

However, I noticed that when I do that and run Shields up test (at www.grc.com), the system has port 135 opened. If I take inetinfo.exe out of the exception list, the port closes.

What I'd like to know is: is there a problem in leaving port 135 opened on the server? Are there any security issues related to that?

Thanks in advance,

Helder
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Question by:HelderConde
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Expert Comment

by:Busbar
ID: 18744546
Remove the Microsoft network client from the connection on the external interface of the server. you don;t need it any way
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JimboEfx earned 500 total points
ID: 18744549
Lots of issues (google this to find lots of results).

A high profile one was blaster virus:

http://www.computerhope.com/vinfo/blaster.htm

Follow best practices and only open what you absolutely need too, even if it requires a bit more effort.
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Author Comment

by:HelderConde
ID: 18744594
Hi,

BusBar suggested: "Remove the Microsoft network client from the connection on the external interface of the server. you don;t need it any way"

How can I do  that?

Thanks,

Helder
0
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If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

 
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Expert Comment

by:Busbar
ID: 18744602
open control panel
open network connection
click on the external interface
lick properties
then remove the client of microsoft network and file and print sharing
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Author Comment

by:HelderConde
ID: 18744630
Hi,

I did that. But the port remaind opened after I re-run Shields Up.
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Expert Comment

by:Busbar
ID: 18744650
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