Re: Disable Port 25

From: Lanwench [MVP - Exchange] (lanwench_at_heybuddy.donotsendme.unsolicitedmail.atyahoo.com)
Date: 05/21/04 

Date: Fri, 21 May 2004 09:25:31 -0400

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.

Allen Jarrett wrote:
> 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
>
>> -----Original Message-----
>> 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.
>>
>> Allen Jarrett wrote:
>>> 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
>>
>>
>> .

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