[mythtv-users] Is there interest for a couple very short HOWTO's?

[Jeff]

Friday, March 26, 2004, 1:00:31 PM, Joseph A. Caputo wrote:

> On Friday 26 March 2004 12:39, Jeff wrote:
>> Friday, March 26, 2004, 11:57:41 AM, Joseph A. Caputo wrote:
>> > On Friday 26 March 2004 11:14, Jeff wrote:
>> >> The one tricky part which I can't remember the command for is
>> >> after you generate your key pair on the client (eg. puTTYgen)
>> >> you copy the public key to the server. There is a ssh command that
>> >> reads the public key file and generates a .ssh/authorized_keys
>> >> entry. You don't just paste the public key into this file.
>> >
>> > Sure you can:
>> >
>> > 	cat public_key_file >> authorized_keys
>> >
>> > works fine.
>> >
>> > -JAC
>>
>> Perhaps for you. If I look at my public key and the
>> contents of the authorized_keys file, they are in slightly
>> different formats.


> Hmmm, shouldn't be, unless you're digitally signing your keys with a
> certificate.  Every resource I've seen on SSH (man pages, howtos, etc)
> just says "add your public key to the authorized_keys file".  No 
> mention of needing any special utility to do it.  Are you using a 
> vanilla OpenSSH ?

> Of course, I've never generated a key with PuTTYgen before; maybe the
> keys it produces require tweaking?

> -Joe

puTTY, and other generators, make keys in "SECSH Public Key File
Format". This looks something like:
---- BEGIN SSH2 PUBLIC KEY ----
Subject: <name>
Comment: <text>
<key bytes>
---- END SSH2 PUBLIC KEY ----

If you copy this to your SSH server into the /home/<user>/.ssh
directory of the user it belongs to and use:
    ssh-keygen -i -f <filename> >> authorized_keys
it will add this to the list of valid keys for that user.

You need to be root because root owns all of the authorized_keys
files.