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| From | Marcel Mueller <news.5.maazl@spamgourmet.org> |
|---|---|
| Newsgroups | comp.os.linux.networking |
| Subject | How to get rid of client disconnected network sockets |
| Date | 2025-06-12 12:54 +0200 |
| Organization | MB-NET.NET for Open-News-Network e.V. |
| Message-ID | <102ebko$2pkej$1@gwaiyur.mb-net.net> (permalink) |
Hello! from time to time network sockets are stuck for a very long time when the client is no longer online: netstat -4np > tcp 0 0 192.168.121.129:40830 192.168.121.1:49000 VERBUNDEN 1449463/vdr > tcp 0 0 192.168.121.129:2049 192.168.121.137:939 VERBUNDEN - > tcp 0 0 192.168.121.129:2049 192.168.121.139:912 VERBUNDEN - > tcp 45 0 192.168.121.129:5143 192.168.121.24:41072 VERBUNDEN - > tcp 0 0 192.168.121.129:22 192.168.121.137:55826 VERBUNDEN 1475830/sshd-sessio > tcp 0 0 192.168.121.129:2049 192.168.121.143:857 VERBUNDEN - > tcp 0 0 192.168.121.129:22 192.168.121.137:42194 VERBUNDEN 1479707/sshd-sessio > tcp 45 0 192.168.121.129:5143 192.168.121.24:43014 VERBUNDEN - > tcp 45 0 192.168.121.129:5143 192.168.121.33:56454 VERBUNDEN - > tcp 0 0 192.168.121.129:5143 192.168.121.33:52444 VERBUNDEN 1460557/VBoxHeadles 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. At some point I can no longer connect to the service at :5143. The client software (xfreerdp) just hangs. The only way to recover from this state is to end the listening process. Since this is a virtual machine this option is not very applicable. The lost connections are often related to client network disconnects, e.g. by a laptop entering suspend or WLAN interference. But this should result in a socket with state CLOSE_WAIT which is cleaned up after a short time. Of course, it is not reproducible. It happens only from time to time. How can I force the sockets to disconnect? System is Debian 13 running VBox headless VMs. (I do not use VBox NAT.) Marcel
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How to get rid of client disconnected network sockets Marcel Mueller <news.5.maazl@spamgourmet.org> - 2025-06-12 12:54 +0200
Re: How to get rid of client disconnected network sockets [changing tcp_keep_alive timeouts] Andrzej Adam Filip <anfi@onet.eu> - 2025-06-12 13:24 +0200
Re: How to get rid of client disconnected network sockets [changing tcp_keep_alive timeouts] Marcel Mueller <news.5.maazl@spamgourmet.org> - 2025-06-14 14:35 +0200
Re: How to get rid of client disconnected network sockets Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-12 21:53 +0000
Re: How to get rid of client disconnected network sockets Computer Nerd Kev <not@telling.you.invalid> - 2025-06-13 22:38 +1000
Re: How to get rid of client disconnected network sockets Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-13 23:40 +0000
Re: How to get rid of client disconnected network sockets Marcel Mueller <news.5.maazl@spamgourmet.org> - 2025-06-14 11:56 +0200
Re: How to get rid of client disconnected network sockets Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-06-14 23:37 +0000
Re: How to get rid of client disconnected network sockets candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> - 2025-06-18 05:30 +0000
Re: How to get rid of client disconnected network sockets Marcel Mueller <news.5.maazl@spamgourmet.org> - 2025-06-18 10:00 +0200
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