![]() This system would fail to kill servers that were initiated without the use of this option.However, this could be circumvented by adding a delay between receiving SIGUSR2 and mosh-server exiting, during which mosh-server would cancel the exit order if it received something from a valid client. On systems where mosh client wrapper can not get a list of pids of mosh-clients even for the user itself, this should not be used because it would falsely deduce that no other clients exist.I do understand that this approach has the following problems / limitations: That would indeed be a partial solution, but I'm not really sure I always want to use screen or tmux, especially since I will sometimes be connecting from a shell running under tmux. Otherwise, it will remove its own entry in the mosh connection cache, and then terminate.If it has not received a MOSH_CLIENT_ID environment variable, it will ignore the signal.file creation time should be used for determining connection creation time for the purposes of excluding newly created sessions from being killed.The default cache would be the filesystem, but others could be implemented.Mosh-server will save client id to the mosh connection cache, along with the current client's pid if it was supplied, as well as its own (current mosh-server's) pid.Finally, garbage collection is performed: entries corresponding to non-existent mosh-server pids are removed.Therefore, this client may deduce that those mosh-servers are orphan, and sends a SIGUSR2 to those mosh-servers.To account for possible timing issues with two closely spaced connections, connections that are less than 30 seconds old will be ignored.but whose clients no longer exist, as far as this mosh-client knows. ![]() serving clients from the same origin as this one,.What remains is a list of those mosh-servers that are:.If the list of known-alive-mosh-client-pids is not empty, client pid must not match any of those.since the pid of current client is not saved yet, all other client pids match, even if current client's pid was not supplied.The client id must match the current connection.Mosh will query the mosh connection cache (see step 4) with the following criteria:.This mode may be useful for simplified operation on systems that will "never" want to have two simultaneous mosh connections as the same client-side user to the same server-side user on the same server.Any future connection with the same client id will kill this connection since it does not supply even its own pid.All other mosh-servers listening to this client id should be killed.If the list of mosh-clients is not provided, it will interpreted to mean two things: The client MAY supply along with the client id, its own pid and a list of pids of mosh-clients that client can see, thereby indicating to the server that it knows those mosh-clients to be alive on the system with that same client id.For backwards compatibility, the client id will be passed as an environment variable, MOSH_CLIENT_ID.Step 5 will happen when SIGUSR2 is received by mosh-server. Step 4 will take place immediately after. ![]()
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