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Old 09-10-2019, 04:06 AM   #1
ufoj
LQ Newbie
 
Registered: Sep 2019
Posts: 5

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Question AIX ssh timeout


I have to make a command to work when connecting to AIX 7.1 (used by an internal software).
I have a linux server L where the following command is runned
Code:
ssh -t <aix-server-ip> ls
For a <non-aix-server-ip> the command runs successfully.
For AIX the terminal just gets blocked.

ssh connection to the AIX works very fast:
Code:
ssh -t <aix-server-ip>
It also works for commands which do not require to display anything, like
Code:
ssh -t <aix-server-ip> touch a.txt
I tested from another linux server (apart from linux server L) and I get the same behaviour.

The verbose mode for the commad which doesn't get blocked:
Code:
$ ssh -vvvtl root 192.168.158.149 touch my_file
OpenSSH_7.6p1 Ubuntu-4ubuntu0.3, OpenSSL 1.0.2n  7 Dec 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "192.168.158.149" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to 192.168.158.149 [192.168.158.149] port 22.
debug1: Connection established.
debug1: identity file /home/ufo/.ssh/id_rsa type 0
debug1: key_load_public: No such file or directory
debug1: identity file /home/ufo/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ufo/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ufo/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ufo/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ufo/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ufo/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ufo/.ssh/id_ed25519-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.4
debug1: match: OpenSSH_5.4 pat OpenSSH_5* compat 0x0c000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 192.168.158.149:22 as 'root'
debug3: hostkeys_foreach: reading file "/home/ufo/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /home/ufo/.ssh/known_hosts:21
debug3: load_hostkeys: loaded 1 keys from 192.168.158.149
debug3: order_hostkeyalgs: prefer hostkeyalgs: ssh-rsa-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
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-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: ssh-rsa-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519
debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
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
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
debug2: compression ctos: none,zlib@openssh.com,zlib
debug2: compression stoc: none,zlib@openssh.com,zlib
debug2: languages ctos: 
debug2: languages stoc: 
debug2: first_kex_follows 0 
debug2: reserved 0 
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: host key algorithms: ssh-rsa,ssh-dss
debug2: ciphers ctos: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
debug2: ciphers stoc: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
debug2: MACs ctos: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: MACs stoc: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: compression ctos: none,zlib@openssh.com
debug2: compression stoc: none,zlib@openssh.com
debug2: languages ctos: 
debug2: languages stoc: 
debug2: first_kex_follows 0 
debug2: reserved 0 
debug1: kex: algorithm: diffie-hellman-group-exchange-sha256
debug1: kex: host key algorithm: ssh-rsa
debug1: kex: server->client cipher: aes128-ctr MAC: umac-64@openssh.com compression: none
debug1: kex: client->server cipher: aes128-ctr MAC: umac-64@openssh.com compression: none
debug3: send packet: type 34
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(2048<3072<8192) sent
debug3: receive packet: type 31
debug1: got SSH2_MSG_KEX_DH_GEX_GROUP
debug2: bits set: 1468/3072
debug3: send packet: type 32
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug3: receive packet: type 33
debug1: got SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Server host key: ssh-rsa SHA256:rKqVv0YxG0hqHWRu6SGGALraMKVfA3bEsHbe70umL+g
debug3: hostkeys_foreach: reading file "/home/ufo/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /home/ufo/.ssh/known_hosts:21
debug3: load_hostkeys: loaded 1 keys from 192.168.158.149
debug1: Host '192.168.158.149' is known and matches the RSA host key.
debug1: Found key in /home/ufo/.ssh/known_hosts:21
debug2: bits set: 1562/3072
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 4294967296 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 4294967296 blocks
debug2: key: /home/ufo/.ssh/id_rsa (0x559f8c544340), agent
debug2: key: /home/ufo/.ssh/id_dsa ((nil))
debug2: key: /home/ufo/.ssh/id_ecdsa ((nil))
debug2: key: /home/ufo/.ssh/id_ed25519 ((nil))
debug3: send packet: type 5
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug3: start over, passed a different list publickey,password,keyboard-interactive
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering public key: RSA SHA256:9gcb7IBZgIseO2IuoMPqspjRhp7vec75bajrBp8oS68 /home/ufo/.ssh/id_rsa
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 60
debug1: Server accepts key: pkalg ssh-rsa blen 279
debug2: input_userauth_pk_ok: fp SHA256:9gcb7IBZgIseO2IuoMPqspjRhp7vec75bajrBp8oS68
debug3: sign_and_send_pubkey: RSA SHA256:9gcb7IBZgIseO2IuoMPqspjRhp7vec75bajrBp8oS68
debug3: send packet: type 50
debug3: receive packet: type 52
debug1: Authentication succeeded (publickey).
Authenticated to 192.168.158.149 ([192.168.158.149]:22).
debug1: channel 0: new [client-session]
debug3: ssh_session2_open: channel_new: 0
debug2: channel 0: send open
debug3: send packet: type 90
debug1: Requesting no-more-sessions@openssh.com
debug3: send packet: type 80
debug1: Entering interactive session.
debug1: pledge: network
debug3: receive packet: type 91
debug2: channel_input_open_confirmation: channel 0: callback start
debug2: fd 3 setting TCP_NODELAY
debug3: ssh_packet_set_tos: set IP_TOS 0x10
debug2: client_session2_setup: id 0
debug2: channel 0: request pty-req confirm 1
debug3: send packet: type 98
debug1: Sending environment.
debug3: Ignored env CLUTTER_IM_MODULE
debug3: Ignored env LS_COLORS
debug3: Ignored env LESSCLOSE
debug3: Ignored env TERMINATOR_UUID
debug3: Ignored env XDG_MENU_PREFIX
debug1: Sending env LANG = en_US.UTF-8
debug2: channel 0: request env confirm 0
debug3: send packet: type 98
debug3: Ignored env DISPLAY
debug3: Ignored env GNOME_SHELL_SESSION_MODE
debug3: Ignored env EDITOR
debug3: Ignored env COLORTERM
debug3: Ignored env USERNAME
debug3: Ignored env XDG_VTNR
debug3: Ignored env GIO_LAUNCHED_DESKTOP_FILE_PID
debug3: Ignored env SSH_AUTH_SOCK
debug3: Ignored env MANDATORY_PATH
debug3: Ignored env XDG_SESSION_ID
debug3: Ignored env USER
debug3: Ignored env DESKTOP_SESSION
debug3: Ignored env QT4_IM_MODULE
debug3: Ignored env TEXTDOMAINDIR
debug3: Ignored env DEFAULTS_PATH
debug3: Ignored env PWD
debug3: Ignored env HOME
debug3: Ignored env TEXTDOMAIN
debug3: Ignored env SSH_AGENT_PID
debug3: Ignored env QT_ACCESSIBILITY
debug3: Ignored env XDG_SESSION_TYPE
debug3: Ignored env XDG_DATA_DIRS
debug3: Ignored env http_proxy
debug3: Ignored env TERMINATOR_DBUS_NAME
debug3: Ignored env XDG_SESSION_DESKTOP
debug3: Ignored env GJS_DEBUG_OUTPUT
debug3: Ignored env GTK_MODULES
debug3: Ignored env TERMINATOR_DBUS_PATH
debug3: Ignored env WINDOWPATH
debug3: Ignored env VTE_VERSION
debug3: Ignored env TERM
debug3: Ignored env SHELL
debug3: Ignored env QT_IM_MODULE
debug3: Ignored env XMODIFIERS
debug3: Ignored env IM_CONFIG_PHASE
debug3: Ignored env XDG_CURRENT_DESKTOP
debug3: Ignored env GPG_AGENT_INFO
debug3: Ignored env GIO_LAUNCHED_DESKTOP_FILE
debug3: Ignored env XDG_SEAT
debug3: Ignored env SHLVL
debug3: Ignored env GDMSESSION
debug3: Ignored env GNOME_DESKTOP_SESSION_ID
debug3: Ignored env LOGNAME
debug3: Ignored env DBUS_SESSION_BUS_ADDRESS
debug3: Ignored env XDG_RUNTIME_DIR
debug3: Ignored env XAUTHORITY
debug3: Ignored env XDG_CONFIG_DIRS
debug3: Ignored env PATH
debug3: Ignored env GJS_DEBUG_TOPICS
debug3: Ignored env ftp_proxy
debug3: Ignored env SESSION_MANAGER
debug3: Ignored env LESSOPEN
debug3: Ignored env GTK_IM_MODULE
debug3: Ignored env _
debug1: Sending command: touch my_file
debug2: channel 0: request exec confirm 1
debug3: send packet: type 98
debug2: channel_input_open_confirmation: channel 0: callback done
debug2: channel 0: open confirm rwindow 0 rmax 32768
debug3: receive packet: type 99
debug2: channel_input_status_confirm: type 99 id 0
debug2: PTY allocation request accepted on channel 0
debug2: channel 0: rcvd adjust 2097152
debug3: receive packet: type 99
debug2: channel_input_status_confirm: type 99 id 0
debug2: exec request accepted on channel 0
debug3: receive packet: type 98
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug3: receive packet: type 98
debug1: client_input_channel_req: channel 0 rtype eow@openssh.com reply 0
debug2: channel 0: rcvd eow
debug2: channel 0: close_read
debug2: channel 0: input open -> closed
debug3: receive packet: type 96
debug2: channel 0: rcvd eof
debug2: channel 0: output open -> drain
debug2: channel 0: obuf empty
debug2: channel 0: close_write
debug2: channel 0: output drain -> closed
debug3: receive packet: type 97
debug2: channel 0: rcvd close
debug3: channel 0: will not send data after close
debug2: channel 0: almost dead
debug2: channel 0: gc: notify user
debug2: channel 0: gc: user detached
debug2: channel 0: send close
debug3: send packet: type 97
debug2: channel 0: is dead
debug2: channel 0: garbage collecting
debug1: channel 0: free: client-session, nchannels 1
debug3: channel 0: status: The following connections are open:
  #0 client-session (t4 r0 i3/0 o3/0 fd -1/-1 cc -1)

debug3: send packet: type 1
Connection to 192.168.158.149 closed.
Transferred: sent 3448, received 2808 bytes, in 0.4 seconds
Bytes per second: sent 8877.0, received 7229.3
debug1: Exit status 0
$
The command which gets blocked:
Code:
$ ssh -vvvtl root 192.168.158.149 ls
OpenSSH_7.6p1 Ubuntu-4ubuntu0.3, OpenSSL 1.0.2n  7 Dec 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "192.168.158.149" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to 192.168.158.149 [192.168.158.149] port 22.
debug1: Connection established.
debug1: identity file /home/ufo/.ssh/id_rsa type 0
debug1: key_load_public: No such file or directory
debug1: identity file /home/ufo/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ufo/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ufo/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ufo/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ufo/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ufo/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/ufo/.ssh/id_ed25519-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.4
debug1: match: OpenSSH_5.4 pat OpenSSH_5* compat 0x0c000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 192.168.158.149:22 as 'root'
debug3: hostkeys_foreach: reading file "/home/ufo/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /home/ufo/.ssh/known_hosts:21
debug3: load_hostkeys: loaded 1 keys from 192.168.158.149
debug3: order_hostkeyalgs: prefer hostkeyalgs: ssh-rsa-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
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-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: ssh-rsa-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519
debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
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
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
debug2: compression ctos: none,zlib@openssh.com,zlib
debug2: compression stoc: none,zlib@openssh.com,zlib
debug2: languages ctos: 
debug2: languages stoc: 
debug2: first_kex_follows 0 
debug2: reserved 0 
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: host key algorithms: ssh-rsa,ssh-dss
debug2: ciphers ctos: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
debug2: ciphers stoc: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
debug2: MACs ctos: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: MACs stoc: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: compression ctos: none,zlib@openssh.com
debug2: compression stoc: none,zlib@openssh.com
debug2: languages ctos: 
debug2: languages stoc: 
debug2: first_kex_follows 0 
debug2: reserved 0 
debug1: kex: algorithm: diffie-hellman-group-exchange-sha256
debug1: kex: host key algorithm: ssh-rsa
debug1: kex: server->client cipher: aes128-ctr MAC: umac-64@openssh.com compression: none
debug1: kex: client->server cipher: aes128-ctr MAC: umac-64@openssh.com compression: none
debug3: send packet: type 34
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(2048<3072<8192) sent
debug3: receive packet: type 31
debug1: got SSH2_MSG_KEX_DH_GEX_GROUP
debug2: bits set: 1477/3072
debug3: send packet: type 32
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug3: receive packet: type 33
debug1: got SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Server host key: ssh-rsa SHA256:rKqVv0YxG0hqHWRu6SGGALraMKVfA3bEsHbe70umL+g
debug3: hostkeys_foreach: reading file "/home/ufo/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /home/ufo/.ssh/known_hosts:21
debug3: load_hostkeys: loaded 1 keys from 192.168.158.149
debug1: Host '192.168.158.149' is known and matches the RSA host key.
debug1: Found key in /home/ufo/.ssh/known_hosts:21
debug2: bits set: 1573/3072
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 4294967296 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 4294967296 blocks
debug2: key: /home/ufo/.ssh/id_rsa (0x55d8a858c320), agent
debug2: key: /home/ufo/.ssh/id_dsa ((nil))
debug2: key: /home/ufo/.ssh/id_ecdsa ((nil))
debug2: key: /home/ufo/.ssh/id_ed25519 ((nil))
debug3: send packet: type 5
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug3: start over, passed a different list publickey,password,keyboard-interactive
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering public key: RSA SHA256:9gcb7IBZgIseO2IuoMPqspjRhp7vec75bajrBp8oS68 /home/ufo/.ssh/id_rsa
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 60
debug1: Server accepts key: pkalg ssh-rsa blen 279
debug2: input_userauth_pk_ok: fp SHA256:9gcb7IBZgIseO2IuoMPqspjRhp7vec75bajrBp8oS68
debug3: sign_and_send_pubkey: RSA SHA256:9gcb7IBZgIseO2IuoMPqspjRhp7vec75bajrBp8oS68
debug3: send packet: type 50
debug3: receive packet: type 52
debug1: Authentication succeeded (publickey).
Authenticated to 192.168.158.149 ([192.168.158.149]:22).
debug1: channel 0: new [client-session]
debug3: ssh_session2_open: channel_new: 0
debug2: channel 0: send open
debug3: send packet: type 90
debug1: Requesting no-more-sessions@openssh.com
debug3: send packet: type 80
debug1: Entering interactive session.
debug1: pledge: network
debug3: receive packet: type 91
debug2: channel_input_open_confirmation: channel 0: callback start
debug2: fd 3 setting TCP_NODELAY
debug3: ssh_packet_set_tos: set IP_TOS 0x10
debug2: client_session2_setup: id 0
debug2: channel 0: request pty-req confirm 1
debug3: send packet: type 98
debug1: Sending environment.
debug3: Ignored env CLUTTER_IM_MODULE
debug3: Ignored env LS_COLORS
debug3: Ignored env LESSCLOSE
debug3: Ignored env TERMINATOR_UUID
debug3: Ignored env XDG_MENU_PREFIX
debug1: Sending env LANG = en_US.UTF-8
debug2: channel 0: request env confirm 0
debug3: send packet: type 98
debug3: Ignored env DISPLAY
debug3: Ignored env GNOME_SHELL_SESSION_MODE
debug3: Ignored env EDITOR
debug3: Ignored env COLORTERM
debug3: Ignored env USERNAME
debug3: Ignored env XDG_VTNR
debug3: Ignored env GIO_LAUNCHED_DESKTOP_FILE_PID
debug3: Ignored env SSH_AUTH_SOCK
debug3: Ignored env MANDATORY_PATH
debug3: Ignored env XDG_SESSION_ID
debug3: Ignored env USER
debug3: Ignored env DESKTOP_SESSION
debug3: Ignored env QT4_IM_MODULE
debug3: Ignored env TEXTDOMAINDIR
debug3: Ignored env DEFAULTS_PATH
debug3: Ignored env PWD
debug3: Ignored env HOME
debug3: Ignored env TEXTDOMAIN
debug3: Ignored env SSH_AGENT_PID
debug3: Ignored env QT_ACCESSIBILITY
debug3: Ignored env XDG_SESSION_TYPE
debug3: Ignored env XDG_DATA_DIRS
debug3: Ignored env http_proxy
debug3: Ignored env TERMINATOR_DBUS_NAME
debug3: Ignored env XDG_SESSION_DESKTOP
debug3: Ignored env GJS_DEBUG_OUTPUT
debug3: Ignored env GTK_MODULES
debug3: Ignored env TERMINATOR_DBUS_PATH
debug3: Ignored env WINDOWPATH
debug3: Ignored env VTE_VERSION
debug3: Ignored env TERM
debug3: Ignored env SHELL
debug3: Ignored env QT_IM_MODULE
debug3: Ignored env XMODIFIERS
debug3: Ignored env IM_CONFIG_PHASE
debug3: Ignored env XDG_CURRENT_DESKTOP
debug3: Ignored env GPG_AGENT_INFO
debug3: Ignored env GIO_LAUNCHED_DESKTOP_FILE
debug3: Ignored env XDG_SEAT
debug3: Ignored env SHLVL
debug3: Ignored env GDMSESSION
debug3: Ignored env GNOME_DESKTOP_SESSION_ID
debug3: Ignored env LOGNAME
debug3: Ignored env DBUS_SESSION_BUS_ADDRESS
debug3: Ignored env XDG_RUNTIME_DIR
debug3: Ignored env XAUTHORITY
debug3: Ignored env XDG_CONFIG_DIRS
debug3: Ignored env PATH
debug3: Ignored env GJS_DEBUG_TOPICS
debug3: Ignored env ftp_proxy
debug3: Ignored env SESSION_MANAGER
debug3: Ignored env LESSOPEN
debug3: Ignored env GTK_IM_MODULE
debug3: Ignored env _
debug1: Sending command: ls
debug2: channel 0: request exec confirm 1
debug3: send packet: type 98
debug2: channel_input_open_confirmation: channel 0: callback done
debug2: channel 0: open confirm rwindow 0 rmax 32768
<the terminal gets blocked here
Any suggestion?

Last edited by ufoj; 09-10-2019 at 05:01 AM. Reason: description edit
 
Old 09-10-2019, 06:09 AM   #2
dc.901
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What is on the server logs? May be give you some hint?
 
Old 09-10-2019, 06:44 AM   #3
ufoj
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Quote:
Originally Posted by dc.901 View Post
What is on the server logs? May be give you some hint?
What log file would help you?
 
Old 09-10-2019, 09:45 AM   #4
dc.901
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Quote:
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What log file would help you?
AIX has auth.log? Assuming, sshd is configured to write to that log file?
So, you can tail that log and try the ssh command and see if any useful info is written there?
 
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Old 09-11-2019, 12:44 AM   #5
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I'm down on my luck . There is no auth.log file.
 
Old 09-13-2019, 11:39 PM   #6
NevemTeve
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What other commands did you try? Eg
Code:
ssh server 'echo "From AIX"'
ssh server 'id -a'
ssh -T server 'echo "without terminal"'
 
Old 09-14-2019, 12:00 AM   #7
NevemTeve
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Note: Even on AIX, syslogd can be configured to write files like /var/log/info.log and /var/log/warning.log etc, but by default syslog-messages just get lost. (For details see file /etc/syslog.conf)
 
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Old 09-16-2019, 02:04 AM   #8
ufoj
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Quote:
Originally Posted by NevemTeve View Post
What other commands did you try? Eg
Code:
ssh server 'echo "From AIX"'
ssh server 'id -a'
ssh -T server 'echo "without terminal"'
`ls` is the command.
Echoing doesn't work either.
 
Old Yesterday, 08:17 AM   #9
NevemTeve
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Anyways, thank you for your efforts.
 
  


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