OSEC

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From: Markus Friedl (Markus.Friedlinformatik.uni-erlangen.de)
Date: Fri Feb 02 2001 - 02:12:35 CST

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    On Thu, Feb 01, 2001 at 11:45:47PM -0800, Dragos Ruiu wrote:
    > remote is SSH2.3 under linux trying to be accessed from openssh under FBSD4.2S
    > and a OBSD2.7 box here(same result with others):
    >
    > Disconnecting: Corrupted HMAC on input.

    this is because SSH-2.3 has a broken hmac-sha1 implementation.

    you can try adding
            MACs hmac-md5
    to the SSH-2.3 config

    > in the other direction.... from the Linux box to openssh sshd:
    > warning: Authentication failed.
    > Disconnected; protocol version not supported (Illegal protocol version.).

    this is probably because you did not install a DSA host key for
    the OpenSSH server.

    try:
            ssh-keygen -d -N '' -f /etc/ssh_dsa_host_key

    > sigh... Time to install some stuff I guess.... but having to run both versions
    > at once is kind of annoying, I wish they would play nice with each other...

    they play nice with each other. try to upgrade your openssh
    installation. we try to deal with several bugs in different
    implemenations (including our own).

    -markus