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Mac Forum / General / Networking / January 2005



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Has My Mac Been Hijacked?

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Jim - 25 Jan 2005 02:57 GMT
I've had a couple of link with some kind of a Gateway timeout on 2
different browsers and a couple of different web sites. Port 32081 is
always involved and the site I am trying to get to never loads.

One web site is TV Guide when I click on a movie to see the description.
Another is simply trying to go to the Allume/Aladdin Message Forum.

Can someone tell me... is Port 32081 is used for any particular usage?

Is Port 32081 OK or should it be blocked?

TIA... Jim
Barry Margolin - 25 Jan 2005 03:23 GMT
> I've had a couple of link with some kind of a Gateway timeout on 2
> different browsers and a couple of different web sites. Port 32081 is
[quoted text clipped - 6 lines]
>
> Is Port 32081 OK or should it be blocked?

Open a Terminal window and do:

lsof -i :32081

to see what's using this port.

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Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***

Jim - 25 Jan 2005 05:53 GMT
> > I've had a couple of link with some kind of a Gateway timeout on 2
> > different browsers and a couple of different web sites. Port 32081 is
[quoted text clipped - 12 lines]
>
> to see what's using this port.

following is what I get...

COMMAND PID        USER   FD   TYPE     DEVICE SIZE/OFF NODE NAME
Camino  101 <username>   32u  IPv4 0x02571cac      0t0  TCP
66-53-178-241.oak.saber.net:57771->compression04.oak.mdsg-pacwest.com:320
81 (SYN_SENT)

The only thing I recognize from above is that I am using Camino and
saber.net is my ISP when Port 32081 is trying to be used. Still don't
know what is prompting Port 32081 to be used.

Also, Firefox processes the same link without trying to use Port
32081... Jim
Barry Margolin - 25 Jan 2005 06:18 GMT
> > > I've had a couple of link with some kind of a Gateway timeout on 2
> > > different browsers and a couple of different web sites. Port 32081 is
[quoted text clipped - 23 lines]
> saber.net is my ISP when Port 32081 is trying to be used. Still don't
> know what is prompting Port 32081 to be used.

Are you using some kind of web accelerator?  The name "compression04"
suggests a proxy of some kind that compresses the data.  But the site
isn't responding to your connection requests; SYN_SENT means your system
sent a connection request but hasn't received a response.

> Also, Firefox processes the same link without trying to use Port
> 32081... Jim

Maybe you've installed the plug-in in Camino, but not Firefix.

Signature

Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***

Jim - 25 Jan 2005 06:43 GMT
> > > > I've had a couple of link with some kind of a Gateway timeout on 2
> > > > different browsers and a couple of different web sites. Port 32081 is
[quoted text clipped - 34 lines]
>
> Maybe you've installed the plug-in in Camino, but not Firefix.

No added plug-ins to Camino or Firefox.

I've not installed any web accelerators but my ISP added something a
year or so ago that speeds up uploads/downloads. Since the data from
Terminal references saber.net (my ISP) followed by "compression04" etc,
I'm guessing this has something to do with what I'm seeing... even tho
its worked fine for a year or more.

I'll call my ISP tomorrow.

Thanks for help in the event you have no more comments... Jim
Barry Margolin - 26 Jan 2005 05:34 GMT
> > > > > I've had a couple of link with some kind of a Gateway timeout on 2
> > > > > different browsers and a couple of different web sites. Port 32081 is
[quoted text clipped - 42 lines]
> I'm guessing this has something to do with what I'm seeing... even tho
> its worked fine for a year or more.

The saber.net reference is *your* machine -- it should show up in all
your connections.

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Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***

Jim - 26 Jan 2005 06:32 GMT
> > > > > > I've had a couple of link with some kind of a Gateway timeout on 2
> > > > > > different browsers and a couple of different web sites. Port 32081
[quoted text clipped - 48 lines]
> The saber.net reference is *your* machine -- it should show up in all
> your connections.

Thanks... I concluded same as I encountered more of same problem today.

It appears that the port 32081 activity is used to retrieve the error
messages when an error is encountered with the web accelerator that my
ISP uses. Both my ISP and the web accelerator company are working on the
problem.

From what I have seen, error could be triggered by a DNS lookup problem
or Camino's inability to handle some java code that TV Guide may have on
their web site. I say that because Camino barfs pretty consistently on
the web site and Firefox has not encountered any problems so far... Jim
 
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