I am reporting here the debugging logs I've got with "-vvv" and also expunging all stuff not related to the bug:
OpenSSH_7.2p2 Ubuntu-4ubuntu1, OpenSSL 1.0.2g-fips 1 Mar 2016 debug1: auto-mux: Trying existing master debug1: Control socket "/tmp/sshcontrol-f1b458a85cd2aa9d5c115abc12afee9f485ad6b0" does not exist debug1: setting up multiplex master socket debug3: muxserver_listen: temporary control path /tmp/sshcontrol-f1b458a85cd2aa9d5c115abc12afee9f485ad6b0.pC6BCXUsqE7aLbzh debug2: fd 5 setting O_NONBLOCK debug3: fd 5 is O_NONBLOCK debug3: fd 5 is O_NONBLOCK debug1: channel 1: new [/tmp/sshcontrol-f1b458a85cd2aa9d5c115abc12afee9f485ad6b0] debug3: muxserver_listen: mux listener channel 1 fd 5 debug2: fd 5 setting O_NONBLOCK debug1: forking to background debug1: channel 2: new [mux-control] debug3: channel_post_mux_listener: new mux channel 2 fd 6 debug3: mux_master_read_cb: channel 2: hello sent debug3: mux_master_read_cb: channel 2 packet type 0x00000001 len 4 debug2: process_mux_master_hello: channel 2 slave version 4 debug2: mux_client_hello_exchange: master version 4 debug3: mux_client_forwards: request forwardings: 1 local, 0 remote debug3: mux_master_read_cb: channel 2 packet type 0x10000006 len 39 debug2: process_mux_open_fwd: channel 2: request dynamic forward 127.72.1.2:8080 -> * debug2: process_mux_open_fwd: found existing forwarding debug3: mux_client_request_session: entering debug3: mux_client_request_alive: entering Please, note that the first "debug3" log line is quoting a temporary socket with expanded name. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1593657 Title: ControlPath unix socket is created in a weird way To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1593657/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs