Homepage: http://www.openssh.com/
In short, ssh works similar to telnet. The difference is that with
telnet, you feed the login name at a prompt. With ssh, you give the
login name on the command line. (ssh user@host) ie:
[EMAIL PROTECTED]
If you omit the username (ssh deathstar.empire.com) ssh uses the
username of your current local login.
The big difference between telnet and ssh is that communications
using ssh travel over an encrypted tunnel whereas communications
with telnet are transmitted in the clear (plaintext). To be able
to ssh into a machine, it needs to be running sshd. Most
configurations run sshd as a standalone daemon and not in inetd (or
xinetd) but you can choose that alternative if you feel so inclined.
If you use the Mandrake RPMs (they come stock with 7.2 and are
available as a download durring install for 7.0 and 7.0), sshd will
be setup for you. Using drakxservices, simply select sshd as one of
the services to start on boot. Alternatively, you can get generic
RPMs from the URL above.They too should show as an option in
drakxservices. You can, of course, manually start and stop the
service by:
/etc/rc.d/init.d/ssh start
/etc/rc.d/init.d/ssh stop
The first time you ssh into a host, you will be asked to accept a
key, choose yes and that computer will have an ID in your
~/.ssh/known_hosts file. Should that key ever change, you will be
notified and should contact the remote machine's administrator to
see if the key should have changed. If you are told it shouldn't
have changed, then you have indication of a security issue such as
a "man-in-the-middle attack". Possible legitimate reasons for key
change include the remote adminstrator deciding to change keys, a
re-install of sshd, and a re-install of the remote server. This
is not an all inclusive list.
ssh also provides some other benefits including automatic X
forwarding (ssh -X) where you can ssh to a remote machine, start
an X program and have it display on your local machine with no
pre-configuration on your part. The transmission of the remote
program will also take place over your encrypted ssh tunnel.
Finally (of the quick overview), there is scp (secure copy) that
allows you to transfer (encrypted tunnel) files between ssh capable
hosts. 'man scp' for the gory details. Other sources of
information include the man pages for ssh and sshd.
Good luck and enjoy,
Woody
--
---------------------------------------------------------------
Gatewood Green Web Developer
http://www.linux.org/ The first stop for Linux info on the Net
Email: [EMAIL PROTECTED]
---------------------------------------------------------------
All opinions expressed by me are my own and not necessarily
endorsed by Linux Online, Inc. or Linux Headquarters, Inc.
Mark Weaver wrote:
>
> I've been looking for info on how to get started with ssh, but I can't
> seem to find any anywhere. could someone give me a hand and get me
> started?
>
> thanks,
>
> --
> Mark
>
> "If you don't share your concepts and ideals, they end up being worthless,"
> "Sharing is what makes them powerful."
>
> Linus Torvalds
> >>>>>>>>>>>>>>>>>>>>>>REPLY BELOW<<<<<<<<<<<<<<<<<<<<<<<
