search for: ssh_init_stdio_forward

...tcpip") at /usr/src/debug/openssh-6.5p1-1/channels.c:1388 #3 0x000000010041dc07 in channel_connect_stdio_fwd ( host_to_connect=0x600039800 "machine2", port_to_connect=22, in=in at entry=4, out=5) at /usr/src/debug/openssh-6.5p1-1/channels.c:1269 #4 0x0000000100401566 in ssh_init_stdio_forwarding () at /usr/src/debug/openssh-6.5p1-1/ssh.c:1260 #5 0x0000000100454171 in ssh_session2 () at /usr/src/debug/openssh-6.5p1-1/ssh.c:1606 #6 main (ac=<optimized out>, av=<optimized out>) at /usr/src/debug/openssh-6.5p1-1/ssh.c:1130 This is not Cygwin specific. To be reall...

...are new in 6.5p1 and reported via error(). I think this was triggered by the new calls to get_sock_port from port_open_helper in https://anongit.mindrot.org/openssh.git/commit/?id=4def184; gdb shows that c->sock is -1 here. Full -vvv output in the Debian bug; relevant-looking excerpt: debug3: ssh_init_stdio_forwarding: server2.example.net:22 debug1: channel_connect_stdio_fwd server2.example.net:22 debug1: channel 0: new [stdio-forward] debug2: fd 4 setting O_NONBLOCK debug3: fd 5 is O_NONBLOCK getsockname failed: Bad file descriptor debug1: getpeername failed: Bad file descriptor It looks like it still works...

Numerous how-tos all over the Internet show how one would set up a tunnel using ssh, e.g.: ssh -f -o Tunnel=ethernet <server_ip> true I was wondering if there's a way to subsequently acquire the names of the local and remote tun/tap interfaces (e.g., using the default "-w any:any") for subsequent automatic tunnel configuration, e.g.: ip link set $TapDev up ip link set

...jump 2>~/sshpc.log Host target HostName target Port 22 User user IdentityFile ~/.ssh/user-target_ed25519 ssh target/remote (check ss -lant4 in second terminal: no listener on port 1080) (exit ssh session) cat sshpc.log [...] Authenticated to my.dynamicdns.com ([12.34.56.78]:2222). debug3: ssh_init_stdio_forwarding: router:22 debug1: channel_connect_stdio_fwd router:22 debug1: channel 0: new [stdio-forward] debug2: fd 4 setting O_NONBLOCK debug2: fd 5 setting O_NONBLOCK debug1: getpeername failed: Bad file descriptor debug3: send packet: type 90 debug2: fd 3 setting TCP_NODELAY debug3: ssh_packet_set_tos:...