[X2Go-User] Can't get X2Go connection opened, with error PANIC! The remote NX proxy closed the connection.
Kalle Tuulos
kalle at tuulos.net
Fri Mar 10 11:53:06 CET 2023
Hi Ulrich
In this client log, I have defined Session type as Single application and
command as "/usr/bin/xterm".
---8<---8<---
kalle at cathouse:~$ x2goclient --libssh-debug
qt.qpa.xcb: X server does not support XInput 2
x2go-INFO-1> "Starting X2Go Client 4.1.2.2..."
x2go-WARNING-1> English language requested, not loading translator.
x2go-WARNING-1> English language requested, not loading translator.
x2go-INFO-3> "Started X2Go Client."
qt.qpa.xcb: QXcbConnection: XCB error: 1 (BadRequest), sequence: 168,
resource id: 309, major code: 130 (Unknown), minor code: 47
x2go-INFO-8> "Starting connection to server: 192.168.1.41:22"
[2023/03/10 12:50:28.963355, 1] ssh_config_parse_line: Unsupported option:
ServerAliveInterval, line: 2
[2023/03/10 12:50:28.963385, 2] ssh_config_parse_line: Unapplicable
option: ForwardX11Trusted, line: 5
[2023/03/10 12:50:28.963393, 2] ssh_config_parse_line: Unapplicable
option: ForwardX11, line: 6
[2023/03/10 12:50:28.963439, 2] ssh_config_parse_line: Unapplicable
option: SendEnv, line: 50
[2023/03/10 12:50:28.963447, 1] ssh_config_parse_line: Unsupported option:
HashKnownHosts, line: 51
[2023/03/10 12:50:28.963469, 2] ssh_connect: libssh 0.9.3 (c) 2003-2019
Aris Adamantiadis, Andreas Schneider and libssh contributors. Distributed
under the LGPL, please refer to COPYING file for information about your
rights, using threading threads_pthread
[2023/03/10 12:50:28.963517, 2] ssh_socket_connect: Nonblocking connection
socket: 12
[2023/03/10 12:50:28.963525, 2] ssh_connect: Socket connecting, now
waiting for the callbacks to work
[2023/03/10 12:50:28.964069, 1] socket_callback_connected: Socket
connection callback: 1 (0)
[2023/03/10 12:50:28.981608, 2] ssh_client_connection_callback: SSH server
banner: SSH-2.0-OpenSSH_8.9p1 Ubuntu-3ubuntu0.1
[2023/03/10 12:50:28.981628, 2] ssh_analyze_banner: Analyzing banner:
SSH-2.0-OpenSSH_8.9p1 Ubuntu-3ubuntu0.1
[2023/03/10 12:50:28.981634, 2] ssh_analyze_banner: We are talking to an
OpenSSH client version: 8.9 (80900)
[2023/03/10 12:50:28.982012, 1] ssh_known_hosts_read_entries: Failed to
open the known_hosts file '/etc/ssh/ssh_known_hosts': No such file or
directory
[2023/03/10 12:50:28.983191, 2] ssh_kex_select_methods: Negotiated
curve25519-sha256 at libssh.org,ecdsa-sha2-nistp256,aes128-ctr,aes128-ctr,
hmac-sha2-256-etm at openssh.com,hmac-sha2-256-etm at openssh.com,none,none,,
[2023/03/10 12:50:28.989835, 2] ssh_init_rekey_state: Set rekey after
4294967296 blocks
[2023/03/10 12:50:28.989853, 2] ssh_init_rekey_state: Set rekey after
4294967296 blocks
[2023/03/10 12:50:28.989860, 2] ssh_packet_client_curve25519_reply:
SSH_MSG_NEWKEYS sent
[2023/03/10 12:50:28.989866, 2] ssh_packet_newkeys: Received
SSH_MSG_NEWKEYS
[2023/03/10 12:50:28.989966, 2] ssh_packet_newkeys: Signature verified and
valid
[2023/03/10 12:50:28.989997, 1] ssh_config_parse_line: Unsupported option:
ServerAliveInterval, line: 2
[2023/03/10 12:50:28.990006, 2] ssh_config_parse_line: Unapplicable
option: ForwardX11Trusted, line: 5
[2023/03/10 12:50:28.990011, 2] ssh_config_parse_line: Unapplicable
option: ForwardX11, line: 6
[2023/03/10 12:50:28.990052, 2] ssh_config_parse_line: Unapplicable
option: SendEnv, line: 50
[2023/03/10 12:50:28.990060, 1] ssh_config_parse_line: Unsupported option:
HashKnownHosts, line: 51
[2023/03/10 12:50:28.990443, 2] ssh_pki_import_privkey_base64: Trying to
decode privkey passphrase=true
[2023/03/10 12:50:28.990477, 2] ssh_pki_openssh_import: Opening OpenSSH
private key: ciphername: none, kdf: none, nkeys: 1
[2023/03/10 12:50:29.085757, 2] channel_open: Creating a channel 43 with
64000 window and 32768 max packet
[2023/03/10 12:50:29.208879, 2] ssh_packet_global_request: Received
SSH_MSG_GLOBAL_REQUEST packet
[2023/03/10 12:50:29.208917, 2] ssh_packet_global_request: UNKNOWN
SSH_MSG_GLOBAL_REQUEST hostkeys-00 at openssh.com, want_reply = 0
[2023/03/10 12:50:29.208924, 1] ssh_packet_global_request: Invalid
SSH_MSG_GLOBAL_REQUEST packet
[2023/03/10 12:50:29.208931, 2] ssh_packet_ignore_callback: Received
SSH_MSG_DEBUG packet
[2023/03/10 12:50:29.252445, 2] ssh_packet_ignore_callback: Received
SSH_MSG_DEBUG packet
[2023/03/10 12:50:29.252480, 2] ssh_packet_channel_open_conf: Received a
CHANNEL_OPEN_CONFIRMATION for channel 43:0
[2023/03/10 12:50:29.252486, 2] ssh_packet_channel_open_conf: Remote
window : 0, maxpacket : 32768
[2023/03/10 12:50:29.256211, 2] channel_request: Channel request pty-req
success
[2023/03/10 12:50:29.301792, 2] channel_rcv_change_window: Adding 2097152
bytes to channel (43:0) (from 0 bytes)
[2023/03/10 12:50:29.301816, 2] channel_request: Channel request exec
success
[2023/03/10 12:50:29.312747, 2] grow_window: growing window (channel 43:0)
to 1280000 bytes
[2023/03/10 12:50:29.312818, 1] ssh_channel_accept: No channel request of
this type from server
[2023/03/10 12:50:29.313383, 1] ssh_channel_accept: No channel request of
this type from server
[2023/03/10 12:50:29.313392, 2] channel_open: Creating a channel 44 with
64000 window and 32768 max packet
[2023/03/10 12:50:29.314256, 2] ssh_packet_channel_open_conf: Received a
CHANNEL_OPEN_CONFIRMATION for channel 44:0
[2023/03/10 12:50:29.314268, 2] ssh_packet_channel_open_conf: Remote
window : 0, maxpacket : 32768
[2023/03/10 12:50:29.316904, 2] channel_rcv_change_window: Adding 2097152
bytes to channel (44:0) (from 0 bytes)
[2023/03/10 12:50:29.316921, 2] channel_request: Channel request exec
success
[2023/03/10 12:50:29.345319, 2] grow_window: growing window (channel 44:0)
to 1280000 bytes
[2023/03/10 12:50:29.345355, 1] ssh_channel_accept: No channel request of
this type from server
[2023/03/10 12:50:29.531520, 1] ssh_channel_accept: No channel request of
this type from server
[2023/03/10 12:50:29.531905, 1] ssh_channel_accept: No channel request of
this type from server
[2023/03/10 12:50:29.532545, 1] ssh_channel_accept: No channel request of
this type from server
[2023/03/10 12:50:29.532586, 2] channel_open: Creating a channel 45 with
64000 window and 32768 max packet
[2023/03/10 12:50:29.533398, 2] ssh_packet_channel_open_conf: Received a
CHANNEL_OPEN_CONFIRMATION for channel 45:0
[2023/03/10 12:50:29.533436, 2] ssh_packet_channel_open_conf: Remote
window : 0, maxpacket : 32768
[2023/03/10 12:50:29.534615, 2] channel_rcv_change_window: Adding 2097152
bytes to channel (45:0) (from 0 bytes)
[2023/03/10 12:50:29.534661, 2] channel_request: Channel request exec
success
[2023/03/10 12:50:29.540836, 2] grow_window: growing window (channel 45:0)
to 1280000 bytes
[2023/03/10 12:50:29.540892, 1] ssh_channel_accept: No channel request of
this type from server
.....
[2023/03/10 12:50:32.124850, 1] ssh_channel_accept: No channel request of
this type from server
[2023/03/10 12:50:32.124917, 1] ssh_config_parse_line: Unsupported option:
ServerAliveInterval, line: 2
[2023/03/10 12:50:32.124935, 2] ssh_config_parse_line: Unapplicable
option: ForwardX11Trusted, line: 5
[2023/03/10 12:50:32.124942, 2] ssh_config_parse_line: Unapplicable
option: ForwardX11, line: 6
[2023/03/10 12:50:32.124983, 2] ssh_config_parse_line: Unapplicable
option: SendEnv, line: 50
[2023/03/10 12:50:32.124990, 1] ssh_config_parse_line: Unsupported option:
HashKnownHosts, line: 51
[2023/03/10 12:50:32.125002, 2] channel_open: Creating a channel 46 with
64000 window and 32768 max packet
[2023/03/10 12:50:32.125955, 2] ssh_packet_channel_open_conf: Received a
CHANNEL_OPEN_CONFIRMATION for channel 46:0
[2023/03/10 12:50:32.125968, 2] ssh_packet_channel_open_conf: Remote
window : 2097152, maxpacket : 32768
[2023/03/10 12:50:32.126001, 1] ssh_channel_accept: No channel request of
this type from server
.....
[2023/03/10 12:50:37.129747, 1] ssh_channel_accept: No channel request of
this type from server
[2023/03/10 12:50:37.129989, 2] channel_open: Creating a channel 47 with
64000 window and 32768 max packet
[2023/03/10 12:50:37.130899, 2] ssh_packet_channel_open_conf: Received a
CHANNEL_OPEN_CONFIRMATION for channel 47:0
[2023/03/10 12:50:37.130948, 2] ssh_packet_channel_open_conf: Remote
window : 0, maxpacket : 32768
[2023/03/10 12:50:37.134024, 2] channel_rcv_change_window: Adding 2097152
bytes to channel (47:0) (from 0 bytes)
[2023/03/10 12:50:37.134089, 2] channel_request: Channel request exec
success
[2023/03/10 12:50:37.163749, 2] grow_window: growing window (channel 47:0)
to 1280000 bytes
[2023/03/10 12:50:37.163800, 1] ssh_channel_accept: No channel request of
this type from server
.....
[2023/03/10 12:50:37.269972, 1] ssh_channel_accept: No channel request of
this type from server
x2go-INFO-6> "Closing X2Go Client ..."
x2go-INFO-7> "Finished X2Go Client closing hooks."
On Fri, 10 Mar 2023 at 12:37, Ulrich Sibiller <uli42 at gmx.de> wrote:
> Hi,
>
> if you are not using kdrive then this message is totally ok.
>
> The log does not show a real problem, AFAICS. So can you please try to
> configure a minimum session opening only an xterm, again without any
> file sharing, printing, sound?
>
> Uli
>
> On Fri, Mar 10, 2023 at 11:13 AM Neal Becker <ndbecker2 at gmail.com> wrote:
> >
> > You could use ssh -X as an alternative
> >
> > On Fri, Mar 10, 2023, 5:04 AM Ulrich Sibiller <uli42 at gmx.de> wrote:
> >>
> >> Please try x2goclient --libssh-debug, maybe it shows more information.
> >>
> >> Uli
> >>
> >> On Fri, Mar 10, 2023 at 10:58 AM Kalle Tuulos <kalle at tuulos.net> wrote:
> >> >
> >> > In short: X2Goserver is hosted in Ubuntu 22.04 computer. It is being
> accessed from Ubuntu 20.04 and Windows 11. Previously, everything worked
> well, but today morning, I could not any more get connection to this
> computer, not from Ubuntu or from Windows 11.
> >> >
> >> > On the Windows client error message is: "The remote proxy closed the
> connection while negotiating..."
> >> > On Ubuntu client, x2goclient --debug print shows:
> >> > --8<--8<--
> >> > RESUMING SESSION is KDRIVE: false
> >> > x2go-DEBUG-../src/onmainwindow.cpp:6142> "Starting NX proxy, command:
> nxproxy -S
> nx/nx,options=/home/kalle/.x2go/S-ktuulos-50-1678441073_stDLXDE_dp24/options:50"
> >> > x2go-DEBUG-../src/sshprocess.cpp:157> Direct tunnel: waiting for
> connections on "localhost":34744
> >> > x2go-DEBUG-../src/onmainwindow.cpp:6618> Proxy wrote on stderr:
> "\nNXPROXY - Version 3.5.99.23\n\nCopyright (c) 2001, 2011 NoMachine (
> http://www.nomachine.com)\nCopyright (c) 2008-2014 Oleksandr Shneyder <
> o.shneyder at phoca-gmbh.de>\nCopyright (c) 2014-2016 Ulrich Sibiller <
> uli42 at gmx.de>\nCopyright (c) 2014-2016 Mihai Moldovan <ionic at ionic.de>\nCopyright
> (c) 2011-2016 Mike Gabriel <mike.gabriel at das-netzwerkteam.de>\nCopyright
> (c) 2015-2016 Qindel Group (http://www.qindel.com)\n\nNXCOMP, NX protocol
> compression and NX extensions to this software\nare copyright of the
> aforementioned persons and companies.\n\nRedistribution and use of the
> present software is allowed according\nto terms specified in the file
> LICENSE.nxcomp which comes in the\nsource distribution.\n\nAll rights
> reserved.\n\nNOTE: This software has received contributions from various
> other\ncontributors, only the core maintainers and supporters are listed
> as\ncopyright holders. Please contact us, if you feel you should be
> listed\nas copyright holder, as well.\n\nNX protocol compression is derived
> from DXPC project.\n\nCopyright (c) 1995,1996 Brian Pane\nCopyright (c)
> 1996,1997 Zachary Vonler and Brian Pane\nCopyright (c) 1999 Kevin Vigor and
> Brian Pane\nCopyright (c) 2000,2003 Gian Filippo Pinzari and Brian
> Pane\n\nAll rights reserved.\n\nSee
> https://github.com/ArcticaProject/nx-libs for more information.\n\nInfo:
> Proxy running in server mode with pid '2505200'.\nSession: Starting session
> at 'Fri Mar 10 11:37:54 2023'.\nInfo: Using errors file
> '/home/kalle/.x2go/S-ktuulos-50-1678441073_stDLXDE_dp24/sessions'.\nInfo:
> Using stats file '/home/kalle/.x2go/S-50/stats'.\nLoop: WARNING! Overriding
> auxiliary X11 port with new value '1'.\nWarning: Overriding auxiliary X11
> port with new value '1'.\nInfo: Using abstract X11 socket in kernel
> namespace for accessing DISPLAY=:50.\nInfo: Connecting to remote host
> 'localhost:34744'.\nInfo: Connected to remote proxy on FD#5.\n"
> >> > x2go-DEBUG-../src/sshprocess.cpp:109> New TCP connection.
> >> > x2go-DEBUG-../src/sshprocess.cpp:114> New socket: 14
> >> > x2go-DEBUG-../src/sshmasterconnection.cpp:1977> Creating new channel.
> >> > x2go-DEBUG-../src/sshmasterconnection.cpp:1990> New
> channel:0x7f41a4012000
> >> > x2go-DEBUG-../src/sshmasterconnection.cpp:1994> Forwarding
> parameters: from remote ("localhost":33744) to local ("localhost":33758)
> >> > x2go-DEBUG-../src/sshmasterconnection.cpp:2028> Temporary session
> port after config file parse: 33744
> >> > x2go-DEBUG-../src/sshmasterconnection.cpp:2032> Temporary session
> host after config file parse: localhost
> >> > x2go-DEBUG-../src/sshmasterconnection.cpp:2059> New channel forwarded.
> >> > ....
> >> > x2go-DEBUG-../src/sshmasterconnection.cpp:2121> EOF on channel
> 0x7f41a4012000; SshProcess object: 2
> >> > x2go-DEBUG-../src/sshmasterconnection.cpp:2222> EOF sent.
> >> > x2go-DEBUG-../src/sshmasterconnection.cpp:2224> Channel closed.
> >> > x2go-DEBUG-../src/onmainwindow.cpp:6618> Proxy wrote on stderr:
> "Loop: PANIC! The remote NX proxy closed the connection.\nError: The remote
> NX proxy closed the connection.\nLoop: PANIC! Failure negotiating the
> session in stage '7'.\nError: Failure negotiating the session in stage
> '7'.\nLoop: PANIC! Wrong version or invalid session authentication
> cookie.\nError: Wrong version or invalid session authentication
> cookie.\nSession: Terminating session at 'Fri Mar 10 11:37:59
> 2023'.\nSession: Session terminated at 'Fri Mar 10 11:37:59
> 2023'.\nqt.qpa.xcb: X server does not support XInput 2\n"
> >> > x2go-DEBUG-../src/onmainwindow.cpp:6475> Deleting Proxy.
> >> > x2go-DEBUG-../src/onmainwindow.cpp:6520> Waiting for proxy to exit.
> >> > x2go-DEBUG-../src/onmainwindow.cpp:6544> Checking exit status.
> >> > x2go-DEBUG-../src/sshprocess.cpp:199> Executing remote command via
> SshProcess object 3: "x2gocmdexitmessage ktuulos-50-1678441073_stDLXDE_dp24"
> >> > --8<--8<--
> >> >
> >> > Printing, audio and shared folder have previously been activated and
> they have worked. Now I have disabled them and it does not make any
> difference.
> >> >
> >> > I have tried to re-install x2go server by command:
> >> > sudo apt-get install --reinstall x2goserver x2goserver-common
> x2goserver-xsession
> >> >
> >> > On the server computer, .xsession-x2go-<client>-errors file has
> following:
> >> > --8<--8<--
> >> > XSession-x2go: X session started for ktuulos at pe 10.3.2023 11.30.25
> +0200
> >> > dbus-update-activation-environment: setting
> DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
> >> > dbus-update-activation-environment: setting DISPLAY=:50
> >> > dbus-update-activation-environment: setting
> XAUTHORITY=/home/ktuulos/.Xauthority
> >> > xrdb: Connection reset by peer
> >> > xrdb: Can't open display ':50'
> >> > /etc/x2go/Xsession.d/30x11-common_xresources: line 16: has_option:
> command not found
> >> > xhost: unable to open display ":50"
> >> > /etc/x2go/Xsession.d/75dbus_dbus-launch: line 9: has_option: command
> not found
> >> > dbus-update-activation-environment: setting QT_ACCESSIBILITY=1
> >> > /etc/x2go/Xsession.d/90x11-common_ssh-agent: line 9: has_option:
> command not found
> >> > dbus-update-activation-environment: setting SHELL=/bin/bash
> >> > --8<--8<--
> >> >
> >> > X2goserver host information:
> >> > ktuulos at kallep50:~$ lsb_release -a
> >> > No LSB modules are available.
> >> > Distributor ID: Ubuntu
> >> > Description: Ubuntu 22.04.2 LTS
> >> > Release: 22.04
> >> > Codename: jammy
> >> > ktuulos at kallep50:~$ dpkg -l x2go* openssh-server
> >> > Desired=Unknown/Install/Remove/Purge/Hold
> >> > |
> Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
> >> > |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
> >> > ||/ Name Version Architecture Description
> >> >
> +++-=====================-===============-============-===================================
> >> > ii openssh-server 1:8.9p1-3ubuntu0.1 amd64 secure
> shell (SSH) server, for secure access from remote machines
> >> > un x2goagent <none> <none> (no
> description available)
> >> > ii x2goclient 4.1.2.2-2build1 amd64 X2Go Client
> application (Qt5)
> >> > un x2goclient-gtk <none> <none> (no
> description available)
> >> > un x2godesktopsharing <none> <none> (no
> description available)
> >> > un x2goprint <none> <none> (no
> description available)
> >> > ii x2goserver 4.1.0.3-5 amd64 X2Go Server
> >> > ii x2goserver-common 4.1.0.3-5 all X2Go Server
> (common files)
> >> > un x2goserver-compat <none> <none> (no
> description available)
> >> > ii x2goserver-extensions 4.1.0.3-5 all X2Go Server
> (extension support)
> >> > ii x2goserver-fmbindings 4.1.0.3-5 all X2Go Server
> (file manager bindings)
> >> > un x2goserver-home <none> <none> (no
> description available)
> >> > un x2goserver-one <none> <none> (no
> description available)
> >> > ii x2goserver-printing 4.1.0.3-5 all X2Go Server
> (printing support)
> >> > un x2goserver-pyhoca <none> <none> (no
> description available)
> >> > ii x2goserver-x2goagent 4.1.0.3-5 amd64 X2Go
> Server's X2Go Agent
> >> > ii x2goserver-xsession 4.1.0.3-5 all X2Go Server
> (Xsession runner)
> >> >
> >> > On the Ubuntu 20.04 version, x2go package versions are the same, but
> openssh-server is version 1:8.2.
> >> >
> >> > Could someone please instruct how to get this working? This Ubuntu
> 22.04 is my R&D work computer and I don't have a keyboard or monitor
> attached to it at all, so now I can only use it through the SSH terminal,
> which makes desktop operations pretty difficult. :(
> >> >
> >> > BR
> >> > Kalle
> >> >
> >> > _______________________________________________
> >> > x2go-user mailing list
> >> > x2go-user at lists.x2go.org
> >> > https://lists.x2go.org/listinfo/x2go-user
> >> _______________________________________________
> >> x2go-user mailing list
> >> x2go-user at lists.x2go.org
> >> https://lists.x2go.org/listinfo/x2go-user
> _______________________________________________
> x2go-user mailing list
> x2go-user at lists.x2go.org
> https://lists.x2go.org/listinfo/x2go-user
>
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