ssh timeout / Received signal 15; terminating.
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 user@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
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,
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