Re: SSH Connection

From: Stephen Carville (stephen_at_totalflood.com)
Date: 06/02/05

  • Next message: Marco A. Ramos: "RE: Fedora some more..."
    Date: Thu, 02 Jun 2005 10:38:34 -0700
    To: General Red Hat Linux discussion list <redhat-list@redhat.com>
    
    

    McDougall, Marshall (FSH) wrote:
    > You need to create keys. It's been awhile, but it's spelled out fairly well
    > in the man pages for ssh-keygen. One gotcha I remember is that the perms on
    > the .ssh directory need to be very tight (600 maybe).

    700.

    1. Create a key on A as oracle. Call it rsa_script_key and use an empty
    passphrase.

    2. copy the contents of rsa_script_key.pub to the file
    <ias-home>/.ssh/authorized_keys on B.

    3. Invoke ssh from A as oracle:
    $ ssh -i ~/.ssh/rsa_script_key ias@B -t /u01/ias/scripts/test_script.sh

    .ssh directories on both ends must have permission of 700 or better or
    ssh will fail. You might need to play with StrictModes in sshd_config.
      I think with 3.0 ans above if your home directory is 755 or better
    StrictModes won't complain but this threshold has changed over the years.

    When all else fails, check in /var/log/messages for hints.

    > Regards, Marshall
    >
    > -----Original Message-----
    > From: Kelley.Coleman@med.va.gov [mailto:Kelley.Coleman@med.va.gov]
    > Sent: Thursday, June 02, 2005 9:53 AM
    > To: redhat-list@redhat.com
    > Subject: SSH Connection
    >
    >
    > I would like to run a script on box A that connects to box B, executes a
    > script there, then returns to complete the original script. The user
    > accounts are different on each box. Box A user is 'oracle', box B user is
    > 'ias'.
    >
    > I tried:
    >
    > ssh servername -l ias /u01/ias/scripts/test_script.sh
    >
    > but I'm prompted for a password.
    >
    > I tried putting the password into the script where it seems to want it, but
    > again, I'm prompted for a password and it processes the password in the
    > script as a command.
    >
    > Do I need to do something in the ssh_config? known_hosts? authorized_keys?
    >
    > I'm not thrilled with the thought of having the password in a script file.
    > So if there's a better way, I'm all for hearing it!
    >
    > Thanks in advance...
    >
    > Kelley Coleman
    > Database Administrator
    > VA Health Administration Center
    > Denver, Colorado
    > 303-331-7521-o
    > 888-732-8802-p
    > 720-319-0454-c
    >
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    -- 
    Stephen Carville <stephen@totalflood.com>
    Unix and Network Admin
    Nationwide Totalflood
    6033 W. Century Blvd
    Los Angeles, CA 90045
    310-342-3602
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  • Next message: Marco A. Ramos: "RE: Fedora some more..."

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