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  • June 13, 2000 at 7:20 am #2074520

    SSH connection to OpenBSD UNIX

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    by roman_empire · about 22 years, 11 months ago

    When I try to connect to OpenBSD UNIX box via SSH port 22 it takes really long time to connect. On the actual console I see the following messages:
    sshd[4753]: log: connection from xxx.xxx.xxx.xxx port nnn
    sshd[4753]: log: could not reverse map address xxx.xxx.xxx.xxx
    Where xxx.xxx.xxx.xxx is the address of the client I am trying to connect from.
    I tried pinging my DNS server – unsuccessful.
    But I could ping other IPs on my network and I could ping the DNS server from any other machine.

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    • June 13, 2000 at 11:59 pm #3777096

      SSH connection to OpenBSD UNIX

      by hugevlad · about 22 years, 11 months ago

      In reply to SSH connection to OpenBSD UNIX

      sshd try to resolve client`s ip-address via DNS, but it can`t access DNS-server.
      As you describe, there is problem to make ip-connection between sshd-computer and your DNS-server.
      Does you ping your DNS-server by name or by ip-address ? If by name, then check /etc/hosts and /etc/resolv.conf files.
      If pings fail when pinging bye ip-address, then you need to check route table on sshd-computer (add some routes or default route).
      Use traceroute to locate problem.

      With best regards,
      Vlad.

    • June 15, 2000 at 5:10 am #3776660

      SSH connection to OpenBSD UNIX

      by rkeckler2000 · about 22 years, 11 months ago

      In reply to SSH connection to OpenBSD UNIX

      There are some files that need to edited. These are some that I do.
      /etc/nsswitch.conf: The hosts line reads host: files dns
      It will first look in the local files then check DNS

      /etc/resolv.conf:
      domain yourdomain.com
      search yourdomain.com
      nameserver ip.address.of.nameserver

      /etc/defaultrouter:
      the ip address of the default router for you subnet needs to be here

      Since we have nameservers I hon’t use the /etc/host file to handle ip address conversions to computer names.
      But if you do it should be like this
      ip.address computername

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