Abnormal Disconnect on Ctrl+C

[PixelPaul]

Hello,
I understand some bugs were fixed around this issue of "Abnormal Disconnect" but i still get it when i do a "Ctrl + C" everytime!

[yang (Yang.Y)]

Hi Paul, I'm sorry about the issue. What happens if you press "Ctrl + C" in Terminal.app after connect via ssh command line?

[PixelPaul]

it ends the current running process, and i am still connected so i can do more commands.

[yang (Yang.Y)]

I could not reproduced the issue, is it happens on all your hosts or just a specific one? And could you please enable debug log and paste the log here? Don't forget eliminate sensitive information from the log.

Enable logging

The default logging level is set to Info, Debug1, Debug2 and Debug3 each specify higher levels of verbose output. [image] Core Shell Open or go to Hosts tab, right click on the host and select Edit Settings… from context menu, navigate to Connection tab, then scroll down to Log Level option. Press ⌘ I (or select Shell -> Show Inspector from main menu) reveals shell session information, as well as log content. [image] Core Tunnel Navigate to tunnel's Settings…, Connection tab, then scroll …

[PixelPaul]

## Backend ##
----------------------------------------
Equivalent Command: ssh -vvv -o ExitOnForwardFailure=yes -o ServerAliveCountMax=3 -o ServerAliveInterval=15 -o RemoteCommand="cd web/backend;adonis serve --dev" dev@192.168.1.31
10:54:33 Connecting…
10:54:33 Using Core Helper 4.4 (r44)
10:54:33 OpenSSH_8.0p1, OpenSSL 1.0.2s 28 May 2019
10:54:33 debug1: Reading configuration data /Users/paul/.ssh/config
10:54:33 debug1: Reading configuration data /etc/ssh/ssh_config
10:54:33 debug1: /etc/ssh/ssh_config line 48: Applying options for *
10:54:33 debug2: resolve_canonicalize: hostname 192.168.1.31 is address
10:54:33 debug3: expanding RemoteCommand: cd web/backend;adonis serve --dev
10:54:33 debug3: expanded RemoteCommand: cd web/backend;adonis serve --dev
10:54:33 debug2: ssh_connect_direct
10:54:33 debug1: Connecting to 192.168.1.31 [192.168.1.31] port 22.
10:54:33 debug1: Connection established.
10:54:33 debug1: identity file /Users/paul/.ssh/id_rsa type 0
10:54:33 debug1: identity file /Users/paul/.ssh/id_rsa-cert type -1
10:54:33 debug1: identity file /Users/paul/.ssh/id_dsa type -1
10:54:33 debug1: identity file /Users/paul/.ssh/id_dsa-cert type -1
10:54:33 debug1: identity file /Users/paul/.ssh/id_ecdsa type -1
10:54:33 debug1: identity file /Users/paul/.ssh/id_ecdsa-cert type -1
10:54:33 debug1: identity file /Users/paul/.ssh/id_ed25519 type -1
10:54:33 debug1: identity file /Users/paul/.ssh/id_ed25519-cert type -1
10:54:33 debug1: identity file /Users/paul/.ssh/id_xmss type -1
10:54:33 debug1: identity file /Users/paul/.ssh/id_xmss-cert type -1
10:54:33 debug1: Local version string SSH-2.0-OpenSSH_8.0
10:54:33 debug1: Remote protocol version 2.0, remote software version OpenSSH_7.6p1 Ubuntu-4ubuntu0.3
10:54:33 debug1: match: OpenSSH_7.6p1 Ubuntu-4ubuntu0.3 pat OpenSSH_7.0*,OpenSSH_7.1*,OpenSSH_7.2*,OpenSSH_7.3*,OpenSSH_7.4*,OpenSSH_7.5*,OpenSSH_7.6*,OpenSSH_7.7* compat 0x04000002
10:54:33 debug2: fd 3 setting O_NONBLOCK
10:54:33 debug1: Authenticating to 192.168.1.31:22 as 'dev'
10:54:33 debug3: hostkeys_foreach: reading file "/Users/paul/.ssh/known_hosts"
10:54:33 Authenticating…
10:54:33 debug3: record_hostkey: found key type ECDSA in file /Users/paul/.ssh/known_hosts:1
10:54:33 debug3: load_hostkeys: loaded 1 keys from 192.168.1.31
10:54:33 debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
10:54:33 debug3: send packet: type 20
10:54:33 debug1: SSH2_MSG_KEXINIT sent
10:54:33 debug3: receive packet: type 20
10:54:33 debug1: SSH2_MSG_KEXINIT received
10:54:33 debug2: local client KEXINIT proposal
10:54:33 debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c
10:54:33 debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
10:54:33 debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
10:54:33 debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
10:54:33 debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
10:54:33 debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
10:54:33 debug2: compression ctos: none,zlib@openssh.com,zlib
10:54:33 debug2: compression stoc: none,zlib@openssh.com,zlib
10:54:33 debug2: languages ctos:
10:54:33 debug2: languages stoc:
10:54:33 debug2: first_kex_follows 0
10:54:33 debug2: reserved 0
10:54:33 debug2: peer server KEXINIT proposal
10:54:33 debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1
10:54:33 debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
10:54:33 debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
10:54:33 debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
10:54:33 debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
10:54:33 debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
10:54:33 debug2: compression ctos: none,zlib@openssh.com
10:54:33 debug2: compression stoc: none,zlib@openssh.com
10:54:33 debug2: languages ctos:
10:54:33 debug2: languages stoc:
10:54:33 debug2: first_kex_follows 0
10:54:33 debug2: reserved 0
10:54:33 debug1: kex: algorithm: curve25519-sha256
10:54:33 debug1: kex: host key algorithm: ecdsa-sha2-nistp256
10:54:33 debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
10:54:33 debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
10:54:33 debug3: send packet: type 30
10:54:33 debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
10:54:33 debug3: receive packet: type 31
10:54:33 debug3: hostkeys_foreach: reading file "/Users/paul/.ssh/known_hosts"
10:54:33 debug3: record_hostkey: found key type ECDSA in file /Users/paul/.ssh/known_hosts:1
10:54:33 debug3: load_hostkeys: loaded 1 keys from 192.168.1.31
10:54:33 debug1: Host '192.168.1.31' is known and matches the ECDSA host key.
10:54:33 debug1: Found key in /Users/paul/.ssh/known_hosts:1
10:54:33 debug3: send packet: type 21
10:54:33 debug2: set_newkeys: mode 1
10:54:33 debug1: rekey out after 134217728 blocks
10:54:33 debug1: SSH2_MSG_NEWKEYS sent
10:54:33 debug1: expecting SSH2_MSG_NEWKEYS
10:54:33 debug3: receive packet: type 21
10:54:33 debug1: SSH2_MSG_NEWKEYS received
10:54:33 debug2: set_newkeys: mode 0
10:54:33 debug1: rekey in after 134217728 blocks
10:54:33 debug1: Will attempt key: /Users/paul/.ssh/id_dsa
10:54:33 debug1: Will attempt key: /Users/paul/.ssh/id_ecdsa
10:54:33 debug1: Will attempt key: /Users/paul/.ssh/id_ed25519
10:54:33 debug1: Will attempt key: /Users/paul/.ssh/id_xmss
10:54:33 debug2: pubkey_prepare: done
10:54:33 debug3: send packet: type 5
10:54:33 debug3: receive packet: type 7
10:54:33 debug1: SSH2_MSG_EXT_INFO received
10:54:33 debug3: receive packet: type 6
10:54:33 debug2: service_accept: ssh-userauth
10:54:33 debug1: SSH2_MSG_SERVICE_ACCEPT received
10:54:33 debug3: send packet: type 50
10:54:33 debug3: receive packet: type 51
10:54:33 debug1: Authentications that can continue: publickey,password
10:54:33 debug3: start over, passed a different list publickey,password
10:54:33 debug3: preferred publickey,keyboard-interactive,password
10:54:33 debug3: authmethod_lookup publickey
10:54:33 debug3: remaining preferred: keyboard-interactive,password
10:54:33 debug3: authmethod_is_enabled publickey
10:54:33 debug1: Next authentication method: publickey
10:54:33 debug3: send packet: type 50
10:54:33 debug2: we sent a publickey packet, wait for reply
10:54:33 debug3: receive packet: type 60
10:54:33 debug3: sign_and_send_pubkey: signing using rsa-sha2-512
10:54:34 debug3: send packet: type 50
10:54:34 debug3: receive packet: type 52
10:54:34 debug1: Authentication succeeded (publickey).
10:54:34 Authenticated to 192.168.1.31 ([192.168.1.31]:22).
10:54:34 debug2: fd 4 setting O_NONBLOCK
10:54:34 debug2: fd 5 setting O_NONBLOCK
10:54:34 debug2: fd 6 setting O_NONBLOCK
10:54:34 debug1: channel 0: new [client-session]
10:54:34 debug3: ssh_session2_open: channel_new: 0
10:54:34 debug2: channel 0: send open
10:54:34 debug3: send packet: type 90
10:54:34 debug1: Requesting no-more-sessions@openssh.com
10:54:34 debug3: send packet: type 80
10:54:34 debug1: Entering interactive session.
10:54:34 debug1: pledge: network
10:54:34 debug2: fd 7 setting O_NONBLOCK
10:54:34 debug2: fd 8 setting O_NONBLOCK
10:54:34 Connected
10:54:34 debug2: client_check_window_change: changed
10:54:34 debug3: receive packet: type 80
10:54:34 debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0
10:54:34 debug3: receive packet: type 91
10:54:34 debug2: channel_input_open_confirmation: channel 0: callback start
10:54:34 debug2: fd 3 setting TCP_NODELAY
10:54:34 debug3: ssh_packet_set_tos: set IP_TOS 0x48
10:54:34 debug2: client_session2_setup: id 0
10:54:34 debug2: channel 0: request pty-req confirm 1
10:54:34 debug3: send packet: type 98
10:54:34 debug1: Sending environment.
10:54:34 debug3: Ignored env TMPDIR
10:54:34 debug3: Ignored env SHELL
10:54:34 debug3: Ignored env HOME
10:54:34 debug3: Ignored env SSH_AUTH_SOCK
10:54:34 debug3: Ignored env Apple_PubSub_Socket_Render
10:54:34 debug3: Ignored env LOGNAME
10:54:34 debug3: Ignored env PATH
10:54:34 debug3: Ignored env XPC_SERVICE_NAME
10:54:34 debug3: Ignored env USER
10:54:34 debug3: Ignored env XPC_FLAGS
10:54:34 debug3: Ignored env __CF_USER_TEXT_ENCODING
10:54:34 debug3: Ignored env INTERACTION
10:54:34 debug3: Ignored env DISPLAY
10:54:34 debug3: Ignored env TERM
10:54:34 debug3: Ignored env SSH_ASKPASS
10:54:34 debug3: Ignored env OBJC_DISABLE_INITIALIZE_FORK_SAFETY
10:54:34 debug3: Ignored env CFFIXED_USER_HOME
10:54:34 debug3: Ignored env APP_SANDBOX_CONTAINER_ID
10:54:34 debug1: Sending command: cd web/backend;adonis serve --dev
10:54:34 debug2: channel 0: request exec confirm 1
10:54:34 debug3: send packet: type 98
10:54:34 debug2: channel_input_open_confirmation: channel 0: callback done
10:54:34 debug2: channel 0: open confirm rwindow 0 rmax 32768
10:54:34 debug3: receive packet: type 99
10:54:34 debug2: channel_input_status_confirm: type 99 id 0
10:54:34 debug2: PTY allocation request accepted on channel 0
10:54:34 debug2: channel 0: rcvd adjust 2097152
10:54:34 debug3: receive packet: type 99
10:54:34 debug2: channel_input_status_confirm: type 99 id 0
10:54:34 debug2: exec request accepted on channel 0
10:54:47 debug3: receive packet: type 98
Connection to 192.168.1.31 closed.
10:54:47 debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
10:54:47 debug3: receive packet: type 98
10:54:47 debug1: client_input_channel_req: channel 0 rtype eow@openssh.com reply 0
10:54:47 debug2: channel 0: rcvd eow
10:54:47 debug2: channel 0: chan_shutdown_read (i0 o0 sock -1 wfd 4 efd 6 [write])
10:54:47 debug2: channel 0: input open -> closed
10:54:47 debug3: receive packet: type 96
10:54:47 debug2: channel 0: rcvd eof
10:54:47 debug2: channel 0: output open -> drain
10:54:47 debug2: channel 0: obuf empty
10:54:47 debug2: channel 0: chan_shutdown_write (i3 o1 sock -1 wfd 5 efd 6 [write])
10:54:47 debug2: channel 0: output drain -> closed
10:54:47 debug3: receive packet: type 97
10:54:47 debug2: channel 0: rcvd close
10:54:47 debug3: channel 0: will not send data after close
10:54:47 debug2: channel 0: almost dead
10:54:47 debug2: channel 0: gc: notify user
10:54:47 debug2: channel 0: gc: user detached
10:54:47 debug2: channel 0: send close
10:54:47 debug3: send packet: type 97
10:54:47 debug2: channel 0: is dead
10:54:47 debug2: channel 0: garbage collecting
10:54:47 debug1: channel 0: free: client-session, nchannels 1
10:54:47 debug3: channel 0: status: The following connections are open:
#0 client-session (t4 r0 i3/0 o3/0 e[write]/0 fd -1/-1/6 sock -1 cc -1)
10:54:47 debug3: send packet: type 1
10:54:47 debug1: fd 0 clearing O_NONBLOCK
10:54:47 debug3: fd 1 is not O_NONBLOCK
10:54:47 debug1: fd 2 clearing O_NONBLOCK
10:54:47 Transferred: sent 3060, received 2964 bytes, in 13.8 seconds
10:54:47 Bytes per second: sent 221.4, received 214.4
10:54:47 debug1: Exit status 0
10:54:47 Disconnected

[yang (Yang.Y)]

Hi Paul, thanks a lot for the debug log, will investigate this issue ASAP.