On 12 October 2016 at 11:40, Emezeta <ze...@insiberia.net> wrote:

> Hola,
>
> Intento resolver un problema en un servidor remoto. Debian 7
> "old-stable" acceso por ssh / nat.
> Desde hace unos días no es posible conectarse.
> Del lado del cliente, versión (OpenSSH_6.7p1 Debian-5+deb8u3, OpenSSL
> 1.0.1t) la cosa termina en un time-out.
> Se usan llaves ssh-rsa publica/privada. No han habido actualizaciones
> recientes.
>
> Esta es la salida del cliente :
>
> $ ssh -vvv -p 2022 u...@servidor.domain.com
> OpenSSH_6.7p1 Debian-5+deb8u3, OpenSSL 1.0.1t  3 May 2016
> debug1: Reading configuration data /home/user/.ssh/config
> debug1: Reading configuration data /etc/ssh/ssh_config
> debug1: /etc/ssh/ssh_config line 19: Applying options for *
> debug2: ssh_connect: needpriv 0
> debug1: Connecting to servidor.domain.com [xxx.xxx.xxx.xxx port 2022.
> debug1: connect to address xxx.xxx.xxx.xxx port 2022: Connection timed out
> ssh: connect to host servidor.domain.com 2022: Connection timed out
>
> Esta es la salida del servidor (OpenSSH_6.0p1 Debian-4+deb7u2) en debug:
>
> # /sbin/sshd -p 22 -D -ddd -e
>

​Porque te conectas remotamente con el puerto 2022, y localmente con el 22?
Deberias probar con ambos.
Si te da timeout es un tema de conectividad. Llegas al puerto 2022 haciendo
telnet?


> debug2: load_server_config: filename /etc/ssh/sshd_config
> debug2: load_server_config: done config len = 648
> debug2: parse_server_config: config /etc/ssh/sshd_config len 648
> debug3: /etc/ssh/sshd_config:5 setting Port 22
> debug3: /etc/ssh/sshd_config:9 setting Protocol 2
> debug3: /etc/ssh/sshd_config:11 setting HostKey /etc/ssh/ssh_host_rsa_key
> debug3: /etc/ssh/sshd_config:12 setting HostKey /etc/ssh/ssh_host_dsa_key
> debug3: /etc/ssh/sshd_config:14 setting UsePrivilegeSeparation yes
> debug3: /etc/ssh/sshd_config:17 setting KeyRegenerationInterval 3600
> debug3: /etc/ssh/sshd_config:18 setting ServerKeyBits 768
> debug3: /etc/ssh/sshd_config:21 setting SyslogFacility AUTH
> debug3: /etc/ssh/sshd_config:22 setting LogLevel INFO
> debug3: /etc/ssh/sshd_config:25 setting LoginGraceTime 120
> debug3: /etc/ssh/sshd_config:26 setting PermitRootLogin yes
> debug3: /etc/ssh/sshd_config:27 setting StrictModes yes
> debug3: /etc/ssh/sshd_config:29 setting RSAAuthentication yes
> debug3: /etc/ssh/sshd_config:30 setting PubkeyAuthentication yes
> debug3: /etc/ssh/sshd_config:34 setting IgnoreRhosts yes
> debug3: /etc/ssh/sshd_config:36 setting RhostsRSAAuthentication no
> debug3: /etc/ssh/sshd_config:38 setting HostbasedAuthentication no
> debug3: /etc/ssh/sshd_config:43 setting PermitEmptyPasswords no
> debug3: /etc/ssh/sshd_config:47 setting ChallengeResponseAuthentication no
> debug3: /etc/ssh/sshd_config:62 setting X11Forwarding yes
> debug3: /etc/ssh/sshd_config:63 setting X11DisplayOffset 10
> debug3: /etc/ssh/sshd_config:64 setting PrintMotd no
> debug3: /etc/ssh/sshd_config:65 setting PrintLastLog yes
> debug3: /etc/ssh/sshd_config:66 setting TCPKeepAlive yes
> debug3: /etc/ssh/sshd_config:73 setting AcceptEnv LANG LC_*
> debug3: /etc/ssh/sshd_config:75 setting Subsystem sftp
> /usr/lib/openssh/sftp-server
> debug3: /etc/ssh/sshd_config:86 setting UsePAM yes
> debug1: sshd version OpenSSH_6.0p1 Debian-4+deb7u2
> debug3: Incorrect RSA1 identifier
> debug1: read PEM private key done: type RSA
> debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048
> debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048
> debug1: private host key: #0 type 1 RSA
> debug3: Incorrect RSA1 identifier
> debug1: read PEM private key done: type DSA
> debug1: Checking blacklist file /usr/share/ssh/blacklist.DSA-1024
> debug1: Checking blacklist file /etc/ssh/blacklist.DSA-1024
> debug1: private host key: #1 type 2 DSA
> debug1: rexec_argv[0]='/usr/sbin/sshd'
> debug1: rexec_argv[1]='-p'
> debug1: rexec_argv[2]='22'
> debug1: rexec_argv[3]='-D'
> debug1: rexec_argv[4]='-ddd'
> debug1: rexec_argv[5]='-e'
> debug3: oom_adjust_setup
> Set /proc/self/oom_score_adj from 0 to -1000
> debug2: fd 3 setting O_NONBLOCK
> debug1: Bind to port 22 on 0.0.0.0.
> Server listening on 0.0.0.0 port 22.
> debug2: fd 4 setting O_NONBLOCK
> debug3: sock_set_v6only: set socket 4 IPV6_V6ONLY
> debug1: Bind to port 22 on ::.
> Server listening on :: port 22.
> Received signal 15; terminating.
>
> El servidor sshd recibe la señal term luego de recibir la petición del
> cliente.
>
> Los logs del sistema no contienen mensajes de error.
> Cualquier ayuda, comentarios, etc. será apreciada. Gracias.
>
> Saludos,
>
>


-- 


Erick.


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