Re: getting SSH on UNIX Server
From: Darren Tucker (dtucker_at_dodgy.net.au)
Date: 02/03/04
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Date: Tue, 3 Feb 2004 04:00:30 +0000 (UTC)
In article <89543c7c.0402021556.6ec848d@posting.google.com>,
Stefan <stefan@dragolov.com> wrote:
>How can I find out if openssh is already installed on the UNIX box?
That depends. Check your platform's packaging utility, or try "ssh -V"
and/or telnetting to the host on port 22.
>And how do I run the sshd deamon?
That depends. Normally it's started by the system startup scripts.
but you can also start it by running /path/to/sshd as root.
>Also, will this have any impaact on performance, security, intefere
>with other components? We are running a large Oracle DB on the same
>UNIX machine...
That depends, but probably not. The only thing to be wary of is that
large transfers via SSH can consume significant CPU time due to the
encryption (and optional compression). The CPU used by interactive
logins is normally small.
>Do I need to take any further action besided just running the ssh
>deamon?
That depends on whether or not it's present and/or set up correctly.
Footnote:
You may have noticed that I said "that depends" a lot. That's because
you have not provided enough information to be more specific. The way
you install and/or start the SSH daemon depends on the flavour of Unix
and/or its version and how you choose to do it. The impact it might
have will depend on the system's CPU(s), type, speed and/or how busy they
already are (and to a lesser extent, how much memory is available).
"UNIX machine" can cover an awful lot of ground.
--
Darren Tucker (dtucker at zip.com.au)
GPG key 8FF4FA69 / D9A3 86E9 7EEE AF4B B2D4 37C9 C982 80C7 8FF4 FA69
Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.
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