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Subject: Re: OT:Can chess.net and other ICS's be accessed by other ports than 5000?

Author: Slater Wold

Date: 23:19:21 09/19/01

Go up one level in this thread


On September 19, 2001 at 22:11:34, Robert Hyatt wrote:

>On September 19, 2001 at 16:51:36, Slater Wold wrote:
>
>>On September 19, 2001 at 16:20:02, derrick gatewood wrote:
>>
>>>Also telnet...  I do not like telnet as it is unfriendly in all terms and
>>>playing chess through telnet is impossible.  My stupid administrators closed
>>>port 5000 down due to Code Red virus.  so is it possible to access chess.net
>>>through port 4000, for instance?  Also, doesn't applying the patch from
>>>microsoft totally protect you from the present form of thew code red virus?  so
>>>closing port 5000 is stupid in his case,  right?  Regardless,  I just want to
>>>play my chess  =)  I am a dang addict.
>>
>>You can access it through any open port.
>>
>>I connect to ICC using port 5003.
>>
>>You have 65,000+ ports, surely you can find one to use.
>>
>>
>>Slate
>
>
>It doesn't work like that.  ICC has to be listening on a port before you can
>connect to it.  the first 1024 ports are reserved for things like ftp, telnet,
>http, snmp, etc.  You have to find out what ports are being listened to on the
>server end, and then connect to that.  ICC started listening on 5000 and up
>(not everything above 5000 but a few) a couple of years ago when they were
>subjected to a DOS attack for several days on port 5000.

That's why I said "open" ports, taking for granted he more than likely knew that
say for instance, 23 is reserved for FTP.

I guarantee they have at least 2,500 open ports, and you're correct, all over
5000.

I don't think ICC would appreciate a port scan however.  Especially after
hearing they have had a denial of service attack before.  :)


Slate



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