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Some init systems including systemd provide a feature to kill all processes belonging to the service. The service typically starts a single process which that creates more processes by forking and those processes can do that as well. All such processes are typically considered part of the service. In systemd this is done using cgroups. In systemd, all ...


Do you use systemd with socket activation for SSH? If so, there’s a known issue with that. According to the systemd proponents, this is actually a feature – systemd kills all processes spawned by a session when the session terminates. (I can see that being useful, but in the GNU screen, or tmux, case, you definitely don’t want that ☺ nor in most other cases ...

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