Actualmente tengo un problema al intentar conseguir una conexión SSH X forwarding desde un MacOS Ventura a un Debian Linux 11. Estoy usando XQuartz 2.8.4 (2.8.5 falló en la instalación).
No sé de dónde viene el problema. A continuación un montón de información con -vvv opción :
ssh -X -vvv fab@pablo
OpenSSH_9.0p1, LibreSSL 3.3.6
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 21: include /etc/ssh/ssh_config.d/* matched no files
debug1: /etc/ssh/ssh_config line 54: Applying options for *
debug1: /etc/ssh/ssh_config line 58: Applying options for *
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/Users/fab/.ssh/known_hosts'
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/Users/fab/.ssh/known_hosts2'
debug1: Authenticator provider $SSH_SK_PROVIDER did not resolve; disabling
debug1: Connecting to pablo port 22.
debug1: Connection established.
debug1: identity file /Users/fab/.ssh/id_rsa type -1
debug1: identity file /Users/fab/.ssh/id_rsa-cert type -1
debug1: identity file /Users/fab/.ssh/id_ecdsa type -1
debug1: identity file /Users/fab/.ssh/id_ecdsa-cert type -1
debug1: identity file /Users/fab/.ssh/id_ecdsa_sk type -1
debug1: identity file /Users/fab/.ssh/id_ecdsa_sk-cert type -1
debug1: identity file /Users/fab/.ssh/id_ed25519 type -1
debug1: identity file /Users/fab/.ssh/id_ed25519-cert type -1
debug1: identity file /Users/fab/.ssh/id_ed25519_sk type -1
debug1: identity file /Users/fab/.ssh/id_ed25519_sk-cert type -1
debug1: identity file /Users/fab/.ssh/id_xmss type -1
debug1: identity file /Users/fab/.ssh/id_xmss-cert type -1
debug1: identity file /Users/fab/.ssh/id_dsa type -1
debug1: identity file /Users/fab/.ssh/id_dsa-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_9.0
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.4p1 Debian-5+deb11u1
debug1: compat_banner: match: OpenSSH_8.4p1 Debian-5+deb11u1 pat OpenSSH* compat 0x04000000
debug3: fd 5 is O_NONBLOCK
debug1: Authenticating to pablo:22 as 'fab'
debug3: record_hostkey: found key type ED25519 in file /Users/fab/.ssh/known_hosts:1
debug3: record_hostkey: found key type ECDSA in file /Users/fab/.ssh/known_hosts:2
debug3: load_hostkeys_file: loaded 2 keys from pablo
debug1: load_hostkeys: fopen /Users/fab/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug3: order_hostkeyalgs: have matching best-preference key type ssh-ed25519-cert-v01@openssh.com, using HostkeyAlgorithms verbatim
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: sntrup761x25519-sha512@openssh.com,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,ext-info-c
debug2: host key algorithms: ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-ed25519,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,rsa-sha2-512,rsa-sha2-256
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: 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
debug2: host key algorithms: rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256,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
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-ed25519
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: SSH2_MSG_KEX_ECDH_REPLY received
debug1: Server host key: ssh-ed25519 SHA256:GLFoF6k2v/2MxuWrF1yK62AkZHsxKjH15LdXOC8PNIY
debug3: record_hostkey: found key type ED25519 in file /Users/fab/.ssh/known_hosts:1
debug3: record_hostkey: found key type ECDSA in file /Users/fab/.ssh/known_hosts:2
debug3: load_hostkeys_file: loaded 2 keys from pablo
debug1: load_hostkeys: fopen /Users/fab/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug1: Host 'pablo' is known and matches the ED25519 host key.
debug1: Found key in /Users/fab/.ssh/known_hosts:1
debug3: send packet: type 21
debug2: ssh_set_newkeys: mode 1
debug1: rekey out after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: ssh_set_newkeys: mode 0
debug1: rekey in after 134217728 blocks
debug1: get_agent_identities: bound agent to hostkey
debug1: get_agent_identities: ssh_fetch_identitylist: agent contains no identities
debug1: Will attempt key: /Users/fab/.ssh/id_rsa
debug1: Will attempt key: /Users/fab/.ssh/id_ecdsa
debug1: Will attempt key: /Users/fab/.ssh/id_ecdsa_sk
debug1: Will attempt key: /Users/fab/.ssh/id_ed25519
debug1: Will attempt key: /Users/fab/.ssh/id_ed25519_sk
debug1: Will attempt key: /Users/fab/.ssh/id_xmss
debug1: Will attempt key: /Users/fab/.ssh/id_dsa
debug2: pubkey_prepare: done
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,sk-ssh-ed25519@openssh.com,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ecdsa-sha2-nistp256@openssh.com,webauthn-sk-ecdsa-sha2-nistp256@openssh.com>
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
debug3: start over, passed a different list publickey,password
debug3: preferred 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: /Users/fab/.ssh/id_rsa
debug3: no such identity: /Users/fab/.ssh/id_rsa: No such file or directory
debug1: Trying private key: /Users/fab/.ssh/id_ecdsa
debug3: no such identity: /Users/fab/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /Users/fab/.ssh/id_ecdsa_sk
debug3: no such identity: /Users/fab/.ssh/id_ecdsa_sk: No such file or directory
debug1: Trying private key: /Users/fab/.ssh/id_ed25519
debug3: no such identity: /Users/fab/.ssh/id_ed25519: No such file or directory
debug1: Trying private key: /Users/fab/.ssh/id_ed25519_sk
debug3: no such identity: /Users/fab/.ssh/id_ed25519_sk: No such file or directory
debug1: Trying private key: /Users/fab/.ssh/id_xmss
debug3: no such identity: /Users/fab/.ssh/id_xmss: No such file or directory
debug1: Trying private key: /Users/fab/.ssh/id_dsa
debug3: no such identity: /Users/fab/.ssh/id_dsa: No such file or directory
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred: ,password
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
fab@pablo's password:
debug3: send packet: type 50
debug2: we sent a password packet, wait for reply
debug3: receive packet: type 52
Authenticated to pablo ([192.168.1.62]:22) using "password".
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: exec
debug3: receive packet: type 80
debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0
debug3: client_input_hostkeys: received RSA key SHA256:/qSKL8wq3JtHIJiXzu+62UH3nbjm+fObXjBofpoqPyo
debug3: client_input_hostkeys: received ECDSA key SHA256:76LnGQ12/LisJhH5vvrWgCdn2I/oxOzhcuLnO9+6LYQ
debug3: client_input_hostkeys: received ED25519 key SHA256:GLFoF6k2v/2MxuWrF1yK62AkZHsxKjH15LdXOC8PNIY
debug1: client_input_hostkeys: searching /Users/fab/.ssh/known_hosts for pablo / (none)
debug3: hostkeys_foreach: reading file "/Users/fab/.ssh/known_hosts"
debug3: hostkeys_find: found ssh-ed25519 key at /Users/fab/.ssh/known_hosts:1
debug3: hostkeys_find: found ecdsa-sha2-nistp256 key at /Users/fab/.ssh/known_hosts:2
debug1: client_input_hostkeys: searching /Users/fab/.ssh/known_hosts2 for pablo / (none)
debug1: client_input_hostkeys: hostkeys file /Users/fab/.ssh/known_hosts2 does not exist
debug3: client_input_hostkeys: 3 server keys: 1 new, 1 retained, 1 incomplete match. 0 to remove
debug3: client_input_hostkeys: asking server to prove ownership for 1 keys
debug3: send packet: type 80
debug3: receive packet: type 91
debug2: channel_input_open_confirmation: channel 0: callback start
debug2: client_x11_get_proto: xauth command: /opt/X11/bin/xauth -f /var/folders/1n/6wz8wzkn63n8y1zc2xjcm6640000gn/T//ssh-Tw35M0laihwY/xauthfile generate /private/tmp/com.apple.launchd.qpHhyhgMf3/org.xquartz:0 MIT-MAGIC-COOKIE-1 untrusted timeout 1260 2>/dev/nullParece que XQuartz no abre la X después de teclear la contraseña, no lo entiendo.
Si alguien ya ha tenido este tipo de problema o ve su causa, estoy perdido con estas muchas informaciones de registro ...
ACTUALIZACIÓN 1 : Aquí un ejemplo (donde he borrado el known_hosts en ambos lados) :
$ ssh -Y fab@pablo
The authenticity of host 'pablo (192.168.1.62)' can't be established.
ED25519 key fingerprint is SHA256:GLFoF6k2v/2MxuWrF1yK62AkZHsxKjH15LdXOC8PNIY.
This key is not known by any other names
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added 'pablo' (ED25519) to the list of known hosts.
fab@pablo's password:
Linux pablo 5.10.0-23-amd64 #1 SMP Debian 5.10.179-2 (2023-07-14) x86_64
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Wed Aug 2 01:17:43 2023 from 192.168.1.66 y no muestra el resto.
ACTUALIZACIÓN 2 : Sigo investigando sobre mi problema. He descubierto que si pongo en remoto la variable de entorno a DISPLAY=localhost:10.0 , entonces la X del servidor está funcionando ( después de un ssh -Y fab@pablo ) : Quiero decir, puedo lanzar por ejemplo nedit desde la máquina remota y la ventana aparecerá en mi MacOS Ventura.
Me di cuenta de que hay un fragmento de código en el ~/.zshrc del usuario actual en la máquina remota :
############ FOR X11 Fowarding ##############
if [ -e "$DISPLAY" ]; then
DISPDIR=$(dirname $DISPLAY)
NEWDISP="${DISPDIR}/:0"
if [ ! -e "$NEWDISP" ]; then
ln -s "$DISPLAY" "$NEWDISP"
xauth -q generate "$NEWDISP" .
fi
export DISPLAY="$NEWDISP"
fipero no recuerdo qué hace exactamente esta parte. Idealmente, me gustaria que ssh connexion pusiera automaticamente el valor correcto para la variable DISPLAY directamente en la máquina ( 127.0.0.1:0.0 ) y de MacOS ( 127.0.0.1:10 ) cuando hago un ssh -X fab@pablo .
