Hi Guys,
I am facing this unique issue. I am using checkpoint Remote access VPN client and I do connect to my ssh server once I connected to VPN. Then I start GUI applications which failed to start. Initially I thought it could be a vpn or checkpoint issue however I replicated the setup in my other home lab and it works fine over there.
Hence I suspect this could be related to X11 or dbus? Can you please confirm?
ssh -XYvv root@11.11.22.22
OpenSSH_7.5p1, OpenSSL 1.0.2o 27 Mar 2018
debug1: Reading configuration data /etc/ssh_config
debug1: /etc/ssh_config line 13: Deprecated option "useroaming"
debug2: resolving "11.11.22.22" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to 11.11.22.22 [11.11.22.22] port 22.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /home/mobaxterm/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/mobaxterm/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/mobaxterm/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/mobaxterm/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/mobaxterm/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/mobaxterm/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/mobaxterm/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/mobaxterm/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.5
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.4
debug1: match: OpenSSH_7.4 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 11.11.22.22:22 as 'root'
debug1: SSH2_MSG_KEXINIT sent
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,ssh-rsa...01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519
debug2: ciphers ctos: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes256-gcm@openssh.com,aes128-cbc,3des-cbc,arcfour,aes128-gcm@openssh.com,chacha20-poly1305@openssh.com,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se
debug2: ciphers stoc: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes256-gcm@openssh.com,aes128-cbc,3des-cbc,arcfour,aes128-gcm@openssh.com,chacha20-poly1305@openssh.com,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se
debug2: MACs ctos: hmac-md5,hmac-sha1,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-sha1-96,hmac-md5-96,umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-md5-etm@openssh.com,hmac-sha1-etm@openssh.com,hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,hmac-md5-96-etm@openssh.com,hmac-ripemd160@openssh.com
debug2: MACs stoc: hmac-md5,hmac-sha1,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-sha1-96,hmac-md5-96,umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-md5-etm@openssh.com,hmac-sha1-etm@openssh.com,hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,hmac-md5-96-etm@openssh.com,hmac-ripemd160@openssh.com
debug2: compression ctos:
zlib@openssh.com,zlib,none
debug2: compression stoc:
zlib@openssh.com,zlib,none
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server 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,diffie-hellman-group1-sha1
debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128...cm@openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,cast128-cbc,3des-cbc
debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128...cm@openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,cast128-cbc,3des-cbc
debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm...28@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm...28@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
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: curve25519-sha256
debug1: kex: host key algorithm: ssh-rsa
debug1: kex: server->client cipher: aes128-ctr MAC: hmac-sha1 compression:
zlib@openssh.com
debug1: kex: client->server cipher: aes128-ctr MAC: hmac-sha1 compression:
zlib@openssh.com
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ssh-rsa SHA256:l+Wzfbew/hedF9KtG/LiI7b/nPS1iFrp8e23SBmKZ4o
debug1: Host '11.11.22.22' is known and matches the RSA host key.
debug1: Found key in /home/mobaxterm/.ssh/known_hosts:2
debug2: set_newkeys: mode 1
debug1: rekey after 4294967296 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 4294967296 blocks
debug1: pubkey_prepare: ssh_fetch_identitylist: agent refused operation
debug2: key: /home/mobaxterm/.ssh/id_rsa (0x0)
debug2: key: /home/mobaxterm/.ssh/id_dsa (0x0)
debug2: key: /home/mobaxterm/.ssh/id_ecdsa (0x0)
debug2: key: /home/mobaxterm/.ssh/id_ed25519 (0x0)
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,rsa-sha2-512>
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug1: Next authentication method: publickey
debug1: Trying private key: /home/mobaxterm/.ssh/id_rsa
debug1: Trying private key: /home/mobaxterm/.ssh/id_dsa
debug1: Trying private key: /home/mobaxterm/.ssh/id_ecdsa
debug1: Trying private key: /home/mobaxterm/.ssh/id_ed25519
debug2: we did not send a packet, disable method
debug1: Next authentication method: password
root@11.11.22.22's password:
debug2: we sent a password packet, wait for reply
debug1: Enabling compression at level 6.
debug1: Authentication succeeded (password).
Authenticated to 11.11.22.22 ([11.11.22.22]:22).
debug1: channel 0: new [client-session]
debug2: channel 0: send open
debug1: Requesting
no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: pledge: exec
debug1: client_input_global_request: rtype
hostkeys-00@openssh.com want_reply 0
debug2: callback start
debug2: x11_get_proto: /bin/xauth list 127.0.0.1:0.0 2>/dev/null
debug1: Requesting X11 forwarding with authentication spoofing.
debug2: channel 0: request x11-req confirm 1
debug1: Requesting authentication agent forwarding.
debug2: channel 0: request
auth-agent-req@openssh.com confirm 0
debug2: fd 3 setting TCP_NODELAY
debug2: client_session2_setup: id 0
debug2: channel 0: request pty-req confirm 1
debug2: channel 0: request shell confirm 1
debug2: callback done
debug2: channel 0: open confirm rwindow 0 rmax 32768
debug2: channel_input_status_confirm: type 99 id 0
debug2: X11 forwarding request accepted on channel 0
debug2: channel_input_status_confirm: type 99 id 0
debug2: PTY allocation request accepted on channel 0
debug2: channel 0: rcvd adjust 2097152
debug2: channel_input_status_confirm: type 99 id 0
debug2: shell request accepted on channel 0
Last login: Thu Aug 13 10:42:09 2020 from 172.16.4.6
[root@localhost ~]# nautilus
debug1: client_input_channel_open: ctype x11 rchan 4 win 65536 max 16384
debug1: client_request_x11: request from 127.0.0.1 55040
debug2: fd 7 setting TCP_NODELAY
debug2: fd 7 setting O_NONBLOCK
debug1: channel 1: new [x11]
debug1: confirm x11
debug1: client_input_channel_open: ctype x11 rchan 5 win 65536 max 16384
debug1: client_request_x11: request from 127.0.0.1 55042
debug2: fd 8 setting TCP_NODELAY
debug2: fd 8 setting O_NONBLOCK
debug1: channel 2: new [x11]
debug1: confirm x11
debug2: channel 2: rcvd eof
debug2: channel 2: output open -> drain
debug2: channel 2: obuf empty
debug2: channel 2: close_write
debug2: channel 2: output drain -> closed
debug1: channel 2: FORCE input drain
debug2: channel 2: ibuf empty
debug2: channel 2: send eof
debug2: channel 2: input drain -> closed
debug2: channel 2: send close
debug2: channel 2: rcvd close
debug2: channel 2: is dead
debug2: channel 2: garbage collecting
debug1: channel 2: free: x11, nchannels 3
debug1: client_input_channel_open: ctype x11 rchan 5 win 65536 max 16384
debug1: client_request_x11: request from 127.0.0.1 55044
debug2: fd 8 setting TCP_NODELAY
debug2: fd 8 setting O_NONBLOCK
debug1: channel 2: new [x11]
debug1: confirm x11
debug1: client_input_channel_open: ctype x11 rchan 6 win 65536 max 16384
debug1: client_request_x11: request from 127.0.0.1 55046
debug2: fd 9 setting TCP_NODELAY
debug2: fd 9 setting O_NONBLOCK
debug1: channel 3: new [x11]
debug1: confirm x11
debug2: channel 3: rcvd eof
debug2: channel 3: output open -> drain
debug2: channel 3: obuf empty
debug2: channel 3: close_write
debug2: channel 3: output drain -> closed
debug1: channel 3: FORCE input drain
debug2: channel 3: ibuf empty
debug2: channel 3: send eof
debug2: channel 3: input drain -> closed
debug2: channel 3: send close
debug2: channel 3: rcvd close
debug2: channel 3: is dead
debug2: channel 3: garbage collecting
debug1: channel 3: free: x11, nchannels 4
debug2: channel 1: window 2039960 sent adjust 57192
debug2: channel 1: window 2015232 sent adjust 81920
debug2: channel 1: window 2031616 sent adjust 65536
debug2: channel 1: window 1998848 sent adjust 98304
debug2: channel 1: window 2031616 sent adjust 65536
debug2: channel 1: window 2031616 sent adjust 65536
debug2: channel 1: window 2031616 sent adjust 65536
debug2: channel 1: window 2031616 sent adjust 65536
debug2: channel 1: window 2031616 sent adjust 65536
debug2: channel 1: window 2015232 sent adjust 81920
debug2: channel 1: window 2031616 sent adjust 65536
debug2: channel 1: window 2037016 sent adjust 60136
