Subject: Re: [libssh2] How to make SSH server responses very slow?

Re: [libssh2] How to make SSH server responses very slow?

From: James Housley <jim_at_thehousleys.net>
Date: Tue, 23 Jan 2007 08:23:50 -0500

On Jan 23, 2007, at 8:06 AM, Daniel Stenberg wrote:

> Hey
>
> Since we're not yet having our own SSH test server, does anyone
> have any good
> idea on how to slow down the response/transfer from a SSH server?
> In order to
> try my non-blocking code really good, it would be nice to have a
> server that
> responds with only a few bytes/second so that almost every socket-
> reading call
> would be affected...
>

At least on FreeBSD, and I am guessing similar can be done with
Linux, you can use the firewall. Using "ipfw" and traffic shaping
you could write rules to force a max data rate and/or delays. http://
www.freebsd.org/cgi/man.cgi?
query=ipfw&apropos=0&sektion=0&manpath=FreeBSD+6.2-
RELEASE&format=html#TRAFFIC+SHAPER

Jim

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Received on 2007-01-23