https://bugzilla.mindrot.org/show_bug.cgi?id=3271
--- Comment #5 from Darren Tucker <[email protected]> --- (In reply to Marcos Dione from comment #4) [...] > I want to run commands (as in shell commands, that I can then > execute from any program) on the server that modifies the ports > forwarded by the session established from the client to the server. The port forward listen requests You could do that by combining ControlMaster and a remote forward of a Unix domain socket: client$ ssh -v -oControlMaster=yes -R/tmp/sock:/tmp/sock server [...] server$ $ ssh -oControlPath=/tmp/sock -O forward -L 1234:127.0.0.1:22 localhost debug1: client_input_channel_open: ctype [email protected] rchan 5 win 2097152 max 32768 debug1: client_request_forwarded_streamlocal: request: /tmp/sock debug1: connect_next: host /tmp/sock ([unix]:/tmp/sock) in progress, fd=8 debug1: channel 2: new [forwarded-streamlocal] debug1: confirm [email protected] debug1: multiplexing control connection debug1: channel 3: new [mux-control] debug1: channel 2: connected to /tmp/sock port -2 debug1: Local forwarding listening on ::1 port 1234. debug1: channel 4: new [port listener] debug1: Local forwarding listening on 127.0.0.1 port 1234. debug1: channel 5: new [port listener] debug1: channel 3: free: mux-control, nchannels 6 debug1: channel 2: free: forwarded-streamlocal, nchannels 5 server$ $ telnet localhost 1234 Trying 127.0.0.1... telnet: connect to address 127.0.0.1: Connection refused client$ telnet localhost 1234 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. SSH-2.0-OpenSSH_8.5 The caveat is that the mux protocol is effectively internal to ssh, so it'll only work with an OpenSSH client of of a compatible version being run on both ends. (There's been 4 revisions of the mux protocol in the 12 years since multiplexing was introduced, so while it doesn't change often it does change.) -- You are receiving this mail because: You are watching someone on the CC list of the bug. You are watching the assignee of the bug. _______________________________________________ openssh-bugs mailing list [email protected] https://lists.mindrot.org/mailman/listinfo/openssh-bugs
