Disable Port 25

  • Thread starter Thread starter Allen Jarrett
  • Start date Start date
A

Allen Jarrett

I would like to disable port 25 on Windows XP Prof. When
I test the machine for open ports it shows that port 25
is open.


Any sugguestions?


Thanks,

Allen Jarrett
 
How to Open Ports in the Windows XP Internet Connection Firewall
http://www.microsoft.com/security/protect/ports.asp

Listening ports on Windows XP
http://www.experts-exchange.com/Security/Win_Security/Q_20839897.html

--
Carey Frisch
Microsoft MVP
Windows XP - Shell/User

Be Smart! Protect your PC!
http://www.microsoft.com/security/protect/

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|I would like to disable port 25 on Windows XP Prof. When
| I test the machine for open ports it shows that port 25
| is open.
|
|
| Any sugguestions?
|
|
| Thanks,
|
| Allen Jarrett
 
In addition - WinXP doesn't have an SMTP server installed by default. If you
run

telnet localhost 25 <enter>

from a command prompt, does anything show up as listening? If so, run a full
AV scan with updated software, look in add/remove programs, etc etc
etc....but yes, DO enable that firewall ASAP.
 
I checked using telnet and no port shows as listening, I
also checked using netstat -a and it shows no port 25 as
listening. When I goto symantec's security website and
have it check for sucurity issues it shows port 25 as
open. It does this on all my workstations at work (all 8
of them). I am running SBS 2003 standard with exchange
and I read somewhere that I shouldn't enable the firewall
that comes with WinXP Prof. if connected to a network
using the LAN as the connection to the internet. I am
using a multihomed SBS as the router out to the internet.

Thanks,

Allen
 
If you have Exchange, it's listening on port 25 on the server, which is
normal as that's how you're supposed to be receiving Internet mail - I'm
wondering if that's what the symantec check is showing. Are you using ISA?
If so, make sure it's configured properly so you don't have everything in
the world open from the Internet...and you're correct on the ICF on the
workstations - it isn't meant for use on LAN connections.
 
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