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Accepted
Kyle Hailey
Asked: 2011-03-17 17:39:27 +0800 CST

how to connect two machines together without a switch (opensolaris + linux or solaris or aix or hpux)

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I have two machines with same subnets X.Y.Z.1 and X.Y.Z.2 I connect them directly with a crossover cable. I can

$ ping X.Y.Z.2

from X.Y.Z.1 and the response is machine 2 is alive but if I do something like

$ ping -s X.Y.Z.2

it hangs. machine 1 is open solaris. Machine 2 has been hpUX, LINUX and Solaris Sparc second test

$ssh X.Y.Z.2

connects and asks for DSA key, which I accept with "yes", then it hangs

networking opensolaris

2 Answers

  1. Best Answer

    Your problems are due to not having dns working. It looks like Solaris ping -s hangs if dns lookups don't work. ssh also tries to do a reverse dns lookup on connections so it will hang for a long time if dns doesn't work.

    To make ssh work, you should be able to edit the /etc/ssh/sshd_config file on the server and add

    UseDNS no

    and of course instead of using ping -s just use regular ping without the -s to disable the dns lookups.

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  2. Are you sure it is hanging and not just timing out while ssh is attempting to do a DNS lookup? Try waiting 60 seconds and see what happens. I'll bet it works.

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