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Hi there, Im having problems when i want to access by ssh to my computer. I have opened port on my router, configured ssh_config, add a rule to iptables, but ...
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  1. #1
    Just Joined!
    Join Date
    Jul 2011
    Posts
    1

    Problem with ssh


    Hi there,

    Im having problems when i want to access by ssh to my computer. I have opened port on my router, configured ssh_config, add a rule to iptables, but i cant access.I have a dyndns created and configured in my router. Im running backtrack 5 distro.
    Here are more info.

    === NMAP ===
    map -p25666 host

    Host is up (0.00014s latency).
    rDNS record for xxx.xxx.xxx.xxx:
    PORT STATE SERVICE
    25666/tcp filtered unknown
    Nmap done: 1 IP address (1 host up) scanned in 0.55 seconds

    === Ping ===
    rootbt:~# ping host
    PING host (xxx.xxx.xxx.xxx) 56(84) bytes of data.
    64 bytes from axxx.xxx.xxx.xxx (xxx.xxx.xxx.xxx): icmp_seq=1 ttl=64 time=0.088 ms

    === Iptables ===
    Chain INPUT (policy ACCEPT)
    target prot opt source destination
    ACCEPT tcp -- anywhere anywhere tcp dpt:25666

    Chain FORWARD (policy ACCEPT)
    target prot opt source destination
    ACCEPT tcp -- anywhere anywhere tcp dpt:25666

    Chain OUTPUT (policy ACCEPT)
    target prot opt source destination
    ACCEPT tcp -- anywhere anywhere tcp dpt:25666

    === Error 1 ===

    ssh roothost -p25666
    ssh: connect to host port 25666: Connection timed out

    === SSH running ===

    rootbt:~# /etc/init.d/ssh status
    * sshd is running

    === Error 2 tried to acesso to localhost ===

    rootbt:~# ssh localhost -p25666
    Read from socket failed: Connection reset by peer

    === My sshd_config ===
    Port 25666
    Protocol 2
    HostKey /etc/ssh/ssh_host_rsa_key
    HostKey /etc/ssh/ssh_host_dsa_key
    UsePrivilegeSeparation yes
    KeyRegenerationInterval 3600
    ServerKeyBits 768
    LoginGraceTime 120
    PermitRootLogin yes
    StrictModes yes
    RSAAuthentication yes
    PubkeyAuthentication yes
    IgnoreRhosts yes
    RhostsRSAAuthentication no
    HostbasedAuthentication no
    PermitEmptyPasswords no
    ChallengeResponseAuthentication no
    X11Forwarding yes
    X11DisplayOffset 10
    PrintMotd no
    PrintLastLog yes
    TCPKeepAlive yes
    AcceptEnv LANG LC_*

    Subsystem sftp /usr/lib/openssh/sftp-server
    UsePAM yes
    UseDNS no


    Can you help me?
    Thanks in advance.

  2. #2
    Trusted Penguin
    Join Date
    May 2011
    Posts
    4,307
    So you can't even SSH in locally (on the same system)? Can you disable the firewall temporarily and try to SSH locally, to rule out iptables as the problem?

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