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List: openssh-unix-dev
Subject: Re: X11 forwarding not working.
From: "dE ." <de.techno () gmail ! com>
Date: 2015-05-24 6:17:04
Message-ID: CADofXPBd8nAuXCawf7Uq85jtbq3K24WQB7uyTzHGKFYYVRc9-w () mail ! gmail ! com
[Download RAW message or body]
Ok, got it further.
If X11 forwarding is in use, it will receive the "proto
cookie" pair in its standard input
Now, solved.
On Sun, May 24, 2015 at 11:14 AM, dE . <de.techno@gmail.com> wrote:
> On Sun, May 24, 2015 at 3:36 AM, Darren Tucker <dtucker@zip.com.au> wrote:
>
> > On Sun, May 24, 2015 at 2:56 AM, dE <de.techno@gmail.com> wrote:
> > >
> > > I'm having a difficult time getting X11 forwarding to work.
> > >
> > > Since I've read the docs completely about this, this must be an SSH bug
> > > which is likely because I'm using Gentoo as the SSH server.
> > >
> > [...]
> >
> > I suspect the problem is that you did not have xauth in your path when
> > you built OpenSSH and thus sshd does not know where to find it. Try adding
> > "XAuthLocation /path/to/your/xauth" to your sshd_config and restart sshd.
> >
> > If that doesn't help then please post the debug output from both client
> > and server (ie /path/to/sshd -ddd and ssh -vvv) and we might be able to
> > figure out what's going on.
> >
> > --
> > Darren Tucker (dtucker at zip.com.au)
> > GPG key 8FF4FA69 / D9A3 86E9 7EEE AF4B B2D4 37C9 C982 80C7 8FF4 FA69
> > Good judgement comes with experience. Unfortunately, the experience
> > usually comes from bad judgement.
> >
>
> OpenSSH_6.4, OpenSSL 1.0.1e-fips 11 Feb 2013
> debug1: Reading configuration data /etc/ssh/ssh_config
> debug1: /etc/ssh/ssh_config line 51: Applying options for *
> debug2: ssh_connect: needpriv 0
> debug1: Connecting to xxxx.xxxx.xxxx [123.123.123.123] port 111.
> debug1: Connection established.
> debug3: Incorrect RSA1 identifier
> debug3: Could not load
> "/run/media/kiosk/71ad235a-3765-4a80-9971-6b602e8e9c28/my.key" as a RSA1
> public key
> debug1: identity file
> /run/media/kiosk/71ad235a-3765-4a80-9971-6b602e8e9c28/my.key type -1
> debug1: identity file
> /run/media/kiosk/71ad235a-3765-4a80-9971-6b602e8e9c28/my.key-cert type -1
> debug1: Enabling compatibility mode for protocol 2.0
> debug1: Local version string SSH-2.0-OpenSSH_6.4
> debug1: Remote protocol version 2.0, remote software version
> OpenSSH_6.7p1-hpn14v5
> debug1: match: OpenSSH_6.7p1-hpn14v5 pat OpenSSH*
> debug2: fd 3 setting O_NONBLOCK
> debug3: put_host_port: [xxxx.xxxx.xxxx]:111
> debug3: load_hostkeys: loading entries for host "[xxxx.xxxx.xxxx]:111"
> from file "/home/kiosk/.ssh/known_hosts"
> debug3: load_hostkeys: found key type ECDSA in file
> /home/kiosk/.ssh/known_hosts:1
> debug3: load_hostkeys: loaded 1 keys
> 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
> debug1: SSH2_MSG_KEXINIT sent
> debug1: SSH2_MSG_KEXINIT received
> debug2: kex_parse_kexinit:
> ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchan \
> ge-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
>
> debug2: kex_parse_kexinit: 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-rsa-cert-v01@openssh.com,ssh-dss-cert-v01@openssh.com,
> ssh-rsa-cert-v00@openssh.com,ssh-dss-cert-v00@openssh.com,ssh-rsa,ssh-dss
> debug2: kex_parse_kexinit:
> aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,
> aes128-gcm@openssh.com,aes256-gcm@openssh.com
> ,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,
> rijndael-cbc@lysator.liu.se
> debug2: kex_parse_kexinit:
> aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,
> aes128-gcm@openssh.com,aes256-gcm@openssh.com
> ,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,
> rijndael-cbc@lysator.liu.se
> debug2: kex_parse_kexinit: hmac-md5-etm@openssh.com,
> hmac-sha1-etm@openssh.com,umac-64-etm@openssh.com,umac-128-etm@openssh.com
> ,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,
> hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,
> hmac-md5-96-etm@openssh.com,hmac-md5,hmac-sha1,umac-64@openssh.com,
> umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,
> hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
> debug2: kex_parse_kexinit: hmac-md5-etm@openssh.com,
> hmac-sha1-etm@openssh.com,umac-64-etm@openssh.com,umac-128-etm@openssh.com
> ,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,
> hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,
> hmac-md5-96-etm@openssh.com,hmac-md5,hmac-sha1,umac-64@openssh.com,
> umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,
> hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
> debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib
> debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib
> debug2: kex_parse_kexinit:
> debug2: kex_parse_kexinit:
> debug2: kex_parse_kexinit: first_kex_follows 0
> debug2: kex_parse_kexinit: reserved 0
> debug2: kex_parse_kexinit: curve25519-sha256@libssh.org
> ,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1
>
> debug2: kex_parse_kexinit: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ssh-ed25519
> debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com
> ,cast128-cbc,blowfish-cbc,arcfour128,aes128-cbc,aes128-ctr,
> aes128-gcm@openssh.com
> debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com
> ,cast128-cbc,blowfish-cbc,arcfour128,aes128-cbc,aes128-ctr,
> aes128-gcm@openssh.com
> debug2: kex_parse_kexinit: hmac-sha1-etm@openssh.com,
> hmac-sha1-96-etm@openssh.com,umac-64-etm@openssh.com
> ,hmac-md5-96,hmac-ripemd160,hmac-sha1-96
> debug2: kex_parse_kexinit: hmac-sha1-etm@openssh.com,
> hmac-sha1-96-etm@openssh.com,umac-64-etm@openssh.com
> ,hmac-md5-96,hmac-ripemd160,hmac-sha1-96
> debug2: kex_parse_kexinit: none,zlib@openssh.com
> debug2: kex_parse_kexinit: none,zlib@openssh.com
> debug2: kex_parse_kexinit:
> debug2: kex_parse_kexinit:
> debug2: kex_parse_kexinit: first_kex_follows 0
> debug2: kex_parse_kexinit: reserved 0
> debug2: mac_setup: found hmac-sha1-etm@openssh.com
> debug1: kex: server->client aes128-ctr hmac-sha1-etm@openssh.com none
> debug2: mac_setup: found hmac-sha1-etm@openssh.com
> debug1: kex: client->server aes128-ctr hmac-sha1-etm@openssh.com none
> debug1: sending SSH2_MSG_KEX_ECDH_INIT
> debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
> debug1: Server host key: ECDSA
> c4:67:d3:7d:93:af:d8:23:e4:1f:9b:66:9b:c5:b8:13
> debug3: put_host_port: [xxxx.xxxx.xxxx]:111
> debug3: put_host_port: [xxxx.xxxx.xxxx]:111
> debug3: load_hostkeys: loading entries for host "[xxxx.xxxx.xxxx]:111"
> from file "/home/kiosk/.ssh/known_hosts"
> debug3: load_hostkeys: found key type ECDSA in file
> /home/kiosk/.ssh/known_hosts:1
> debug3: load_hostkeys: loaded 1 keys
> debug3: load_hostkeys: loading entries for host "[xxxx.xxxx.xxxx]:111"
> from file "/home/kiosk/.ssh/known_hosts"
> debug3: load_hostkeys: found key type ECDSA in file
> /home/kiosk/.ssh/known_hosts:1
> debug3: load_hostkeys: loaded 1 keys
> debug1: Host '[xxxx.xxxx.xxxx]:111' is known and matches the ECDSA host
> key.
> debug1: Found key in /home/kiosk/.ssh/known_hosts:1
> debug1: ssh_ecdsa_verify: signature correct
> debug2: kex_derive_keys
> debug2: set_newkeys: mode 1
> debug1: SSH2_MSG_NEWKEYS sent
> debug1: expecting SSH2_MSG_NEWKEYS
> debug2: set_newkeys: mode 0
> debug1: SSH2_MSG_NEWKEYS received
> debug1: Roaming not allowed by server
> debug1: SSH2_MSG_SERVICE_REQUEST sent
> debug2: service_accept: ssh-userauth
> debug1: SSH2_MSG_SERVICE_ACCEPT received
> debug2: key: /run/media/kiosk/71ad235a-3765-4a80-9971-6b602e8e9c28/my.key
> ((nil)), explicit
> debug1: Authentications that can continue: publickey,keyboard-interactive
> debug3: start over, passed a different list publickey,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: Trying private key:
> /run/media/kiosk/71ad235a-3765-4a80-9971-6b602e8e9c28/my.key
> debug1: read PEM private key done: type RSA
> debug3: sign_and_send_pubkey: RSA
> 97:5a:4d:07:ee:9a:e3:e9:8f:4d:f3:8b:7b:4f:c4:57
> debug2: we sent a publickey packet, wait for reply
> debug1: Authentication succeeded (publickey).
> Authenticated to xxxx.xxxx.xxxx ([xxxx.xxxx.xxxx]:111).
> debug1: channel 0: new [client-session]
> debug3: ssh_session2_open: channel_new: 0
> debug2: channel 0: send open
> debug1: Requesting no-more-sessions@openssh.com
> debug1: Entering interactive session.
> debug1: SSH2_MSG_KEXINIT received
> debug1: SSH2_MSG_KEXINIT sent
> debug2: kex_parse_kexinit:
> ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchan \
> ge-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
>
> debug2: kex_parse_kexinit: 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-rsa-cert-v01@openssh.com,ssh-dss-cert-v01@openssh.com,
> ssh-rsa-cert-v00@openssh.com,ssh-dss-cert-v00@openssh.com,ssh-rsa,ssh-dss
> debug2: kex_parse_kexinit:
> aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,
> aes128-gcm@openssh.com,aes256-gcm@openssh.com
> ,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,
> rijndael-cbc@lysator.liu.se
> debug2: kex_parse_kexinit:
> aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,
> aes128-gcm@openssh.com,aes256-gcm@openssh.com
> ,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,
> rijndael-cbc@lysator.liu.se
> debug2: kex_parse_kexinit: hmac-md5-etm@openssh.com,
> hmac-sha1-etm@openssh.com,umac-64-etm@openssh.com,umac-128-etm@openssh.com
> ,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,
> hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,
> hmac-md5-96-etm@openssh.com,hmac-md5,hmac-sha1,umac-64@openssh.com,
> umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,
> hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
> debug2: kex_parse_kexinit: hmac-md5-etm@openssh.com,
> hmac-sha1-etm@openssh.com,umac-64-etm@openssh.com,umac-128-etm@openssh.com
> ,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,
> hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,
> hmac-md5-96-etm@openssh.com,hmac-md5,hmac-sha1,umac-64@openssh.com,
> umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,
> hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
> debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib
> debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib
> debug2: kex_parse_kexinit:
> debug2: kex_parse_kexinit:
> debug2: kex_parse_kexinit: first_kex_follows 0
> debug2: kex_parse_kexinit: reserved 0
> debug2: kex_parse_kexinit: curve25519-sha256@libssh.org
> ,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1
>
> debug2: kex_parse_kexinit: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ssh-ed25519
> debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com
> ,cast128-cbc,blowfish-cbc,arcfour128,aes128-cbc,aes128-ctr,
> aes128-gcm@openssh.com
> debug2: kex_parse_kexinit: chacha20-poly1305@openssh.com
> ,cast128-cbc,blowfish-cbc,arcfour128,aes128-cbc,aes128-ctr,
> aes128-gcm@openssh.com
> debug2: kex_parse_kexinit: hmac-sha1-etm@openssh.com,
> hmac-sha1-96-etm@openssh.com,umac-64-etm@openssh.com
> ,hmac-md5-96,hmac-ripemd160,hmac-sha1-96
> debug2: kex_parse_kexinit: hmac-sha1-etm@openssh.com,
> hmac-sha1-96-etm@openssh.com,umac-64-etm@openssh.com
> ,hmac-md5-96,hmac-ripemd160,hmac-sha1-96
> debug2: kex_parse_kexinit: none,zlib@openssh.com
> debug2: kex_parse_kexinit: none,zlib@openssh.com
> debug2: kex_parse_kexinit:
> debug2: kex_parse_kexinit:
> debug2: kex_parse_kexinit: first_kex_follows 0
> debug2: kex_parse_kexinit: reserved 0
> debug2: mac_setup: found hmac-sha1-etm@openssh.com
> debug1: kex: server->client aes128-ctr hmac-sha1-etm@openssh.com none
> debug2: mac_setup: found hmac-sha1-etm@openssh.com
> debug1: kex: client->server aes128-ctr hmac-sha1-etm@openssh.com none
> debug1: sending SSH2_MSG_KEX_ECDH_INIT
> debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
> debug1: Server host key: ECDSA
> c4:67:d3:7d:93:af:d8:23:e4:1f:9b:66:9b:c5:b8:13
> debug3: put_host_port: [xxxx.xxxx.xxxx]:111
> debug3: put_host_port: [xxxx.xxxx.xxxx]:111
> debug3: load_hostkeys: loading entries for host "[xxxx.xxxx.xxxx]:111"
> from file "/home/kiosk/.ssh/known_hosts"
> debug3: load_hostkeys: found key type ECDSA in file
> /home/kiosk/.ssh/known_hosts:1
> debug3: load_hostkeys: loaded 1 keys
> debug3: load_hostkeys: loading entries for host "[xxxx.xxxx.xxxx]:111"
> from file "/home/kiosk/.ssh/known_hosts"
> debug3: load_hostkeys: found key type ECDSA in file
> /home/kiosk/.ssh/known_hosts:1
> debug3: load_hostkeys: loaded 1 keys
> debug1: Host '[xxxx.xxxx.xxxx]:111' is known and matches the ECDSA host
> key.
> debug1: Found key in /home/kiosk/.ssh/known_hosts:1
> debug1: ssh_ecdsa_verify: signature correct
> debug2: kex_derive_keys
> debug2: set_newkeys: mode 1
> debug1: set_newkeys: rekeying
> debug1: SSH2_MSG_NEWKEYS sent
> debug1: expecting SSH2_MSG_NEWKEYS
> debug2: set_newkeys: mode 0
> debug1: set_newkeys: rekeying
> debug1: SSH2_MSG_NEWKEYS received
> debug2: callback start
> debug2: x11_get_proto: /usr/bin/xauth list :0 2>/dev/null
> debug1: Requesting X11 forwarding with authentication spoofing.
> debug2: channel 0: request x11-req confirm 1
> debug2: fd 3 setting TCP_NODELAY
> debug3: packet_set_tos: set IP_TOS 0x10
> debug2: client_session2_setup: id 0
> debug2: channel 0: request pty-req confirm 1
> debug1: Sending environment.
> debug3: Ignored env XDG_VTNR
> debug3: Ignored env XDG_SESSION_ID
> debug3: Ignored env DBUS_STARTER_ADDRESS
> debug3: Ignored env GPG_AGENT_INFO
> debug3: Ignored env TERM
> debug3: Ignored env SHELL
> debug3: Ignored env XDG_MENU_PREFIX
> debug3: Ignored env VTE_VERSION
> debug3: Ignored env WINDOWID
> debug3: Ignored env GNOME_KEYRING_CONTROL
> debug3: Ignored env USER
> debug3: Ignored env LS_COLORS
> debug3: Ignored env SSH_AUTH_SOCK
> debug3: Ignored env SESSION_MANAGER
> debug3: Ignored env USERNAME
> debug3: Ignored env PATH
> debug3: Ignored env DESKTOP_SESSION
> debug3: Ignored env PWD
> debug1: Sending env LANG = en_US.UTF-8
> debug2: channel 0: request env confirm 0
> debug3: Ignored env GDM_LANG
> debug3: Ignored env GDMSESSION
> debug3: Ignored env DBUS_STARTER_BUS_TYPE
> debug3: Ignored env HOME
> debug3: Ignored env XDG_SEAT
> debug3: Ignored env SHLVL
> debug3: Ignored env GNOME_DESKTOP_SESSION_ID
> debug3: Ignored env LOGNAME
> debug3: Ignored env DBUS_SESSION_BUS_ADDRESS
> debug3: Ignored env LESSOPEN
> debug3: Ignored env WINDOWPATH
> debug3: Ignored env XDG_RUNTIME_DIR
> debug3: Ignored env DISPLAY
> debug3: Ignored env COLORTERM
> debug3: Ignored env XAUTHORITY
> debug3: Ignored env _
> 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 87380
> debug2: channel_input_status_confirm: type 99 id 0
> debug2: shell request accepted on channel 0
> Last login: Sun May 24 10:53:28 2015 from x.x.x.x
> de@DESKTOP_MINER ~ $ kwrite
> debug1: client_input_channel_open: ctype x11 rchan 3 win 87380 max 16384
> debug1: client_request_x11: request from 127.0.0.1 46768
> debug2: fd 7 setting O_NONBLOCK
> debug3: fd 7 is O_NONBLOCK
> debug1: channel 1: new [x11]
> debug1: confirm x11
> debug2: X11 connection uses different authentication protocol.
> X11 connection rejected because of wrong authentication.
> debug2: X11 rejected 1 i0/o0
> debug2: channel 1: read failed
> debug2: channel 1: close_read
> debug2: channel 1: input open -> drain
> debug2: channel 1: ibuf empty
> debug2: channel 1: send eof
> debug2: channel 1: input drain -> closed
> debug2: channel 1: write failed
> debug2: channel 1: close_write
> debug2: channel 1: output open -> closed
> debug2: X11 closed 1 i3/o3
> debug2: channel 1: send close
> debug2: channel 1: rcvd close
> debug2: channel 1: is dead
> debug2: channel 1: garbage collecting
> debug1: channel 1: free: x11, nchannels 2
> debug3: channel 1: status: The following connections are open:
> #0 client-session (t4 r0 i0/0 o0/0 fd 4/5 cc -1)
> #1 x11 (t7 r3 i3/0 o3/0 fd 7/7 cc -1)
>
> kwrite: cannot connect to X server DESKTOP_MINER:11.0
>
> Ok, got it.
>
> "X11 connection uses different authentication protocol."
>
> Please suggest. I'm also looking at it on my end.
>
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