binary switching, no killing

From: Craig Holmes (Leusent@home.com)
Date: 09/23/01 

From: Craig Holmes <Leusent@home.com>
To: pen-test@securityfocus.com
Subject: binary switching, no killing
Date: Sat, 22 Sep 2001 23:08:17 -0400
Message-Id: <01092223081701.00922@Weltall.gearbolt.net>

Hi Listmembers,
        Me and some friends have created a small irc network in which we are
implementing ssl encryption between client and server. Our original ircd did
not have this feature and now our new ircds do. The problem is in upgrading,
the whole ircd must be killed and a new one started, which causes all clients
to drop. My question is, is it possible to almost "hijack" a process, and
switch the binary without losing the pid & tcp/ip connections? Is this a
crazy and impossible idea, or has it been done?

Any help would be appreciated!

           Thanks in advance,
                Craig Holmes

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