Re: Strange connections reported by netstat
- From: "Alin Selicean" <alin_selicean@xxxxxxxxx>
- To: isalist@xxxxxxxxxxxxx
- Date: Mon, 12 Nov 2001 10:50:52 -0700
Thanks, Jim !
I discovered my mistake. Inadvertenly, I restored an obsolete
configuration in which IP packet filters were disabled for some
connectivity issues.
Now I have only 2 ports opened: 25 and 80, as it should be.
Thank you.
> Take a look at this:
> http://www.isaserver.org/pages/tutorials/setting_up_machine_before_isa_insta
> lltion.htm
>
> Also, if you've disabled packet filtering, you're wide open to the world.
>
> Jim Harrison
> MCP(NT4, 2K), A+, Network+, PCG
>
>
> ----- Original Message -----
> From: "Alin Selicean" <alin_selicean@xxxxxxxxx>
> To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
> Sent: Monday, November 12, 2001 07:55
> Subject: [isalist] Strange connections reported by netstat
>
>
> http://www.ISAserver.org
>
>
> Hi, all !
>
> I scanned my ISA external interface for open ports and I noticed that
> since last scan, 2 ports appear as open: 135 and 443.
>
> Issuing a netstat -an, I noticed these connections:
> UDP 0.0.0.0:37 *:*
> UDP 0.0.0.0:123 *:*
> UDP 0.0.0.0:135 *:*
> UDP 0.0.0.0:445 *:*
> UDP 0.0.0.0:3003 *:*
> UDP 0.0.0.0:3005 *:*
> UDP 0.0.0.0:3456 *:*
> UDP 0.0.0.0:3457 *:*
> UDP 0.0.0.0:17953 *:*
> UDP 0.0.0.0:18137 *:*
> UDP 127.0.0.1:53 *:*
> UDP 127.0.0.1:3004 *:*
>
> Are they normal connections ? I guess not.
>
> How can get rid of these and eventually closing those ports.
>
> Initially, I had only 2 ports open: 25 and 80.
>
> TIA,
> Alin
>
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