Re: [htdig3-dev] SIGALRM handler fixed


Subject: Re: [htdig3-dev] SIGALRM handler fixed
From: loic@ceic.com
Date: Tue Feb 29 2000 - 03:54:49 PST


Vadim Chekan writes:
> loic@ceic.com wrote:
> >
> > Hi,
>
> > I've tested it manually on http://pop.ceic.com:80/ that is guaranteed
> > to timeout because of a firewall. I could not figure a way to emulate this
> > conditions under a controlled test environment. Ideas are wellcome.
>
> I'm not 100% shure but what about:
> 1. run simple application which do listen(<some port>), but doesn't do
> any read from socket.

 The connect is successfull, even if the application does not do a accept().
And if you set the backlog to 0, you get connection refused.
 
> 2. try to connect localhost:<some port>

 It's connection refused.

 The hard part is that you must try to reach an IP that could answer but
does not because packets are thrown away (that's what happens when a machine
is behind a firewall).

 Cheers,

-- 
		Loic Dachary

24 av Secretan 75019 Paris Tel: 33 1 42 45 09 16 e-mail: loic@dachary.org URL: http://www.senga.org/

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