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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.os.linux.networking
Subject: Re: How to get rid of client disconnected network sockets
Date: Thu, 12 Jun 2025 21:53:56 -0000 (UTC)
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On Thu, 12 Jun 2025 12:54:16 +0200, Marcel Mueller wrote:

> The clients 192.168.121.24 is disconnected for at least an hour, but the
> sockets at the server seem to stay for an infinite time.

This to me points to a defect in the protocol, that it does not 
periodically exchange “are you there?” packets (even, say, once every 1 
minute or 5 minutes), just to be sure the other end is still up.