[NTLUG:Discuss] ssh keys

[Jack Snodgrass]

Say that I have a machine that I genreate a ssh key on. 
I'm using the latest openssh v2 software. 

I take the .pub part of the key and I scp it to 20 servers 
that I need ssh access to and put it in the authorized_keys2 
file for each server. Now I can use my ssh key to get to any 
of those 20 servers. 

Now... I need to access 10 more servers, so I scp my pub 
key to those 10 new servers and update their authorized_keys2 
files too.

Next... I decide that I want to use another account/machine
in addition to the one I'm using now, so I have to make a new 
ssh-key, and transfer that to each of the 30 servers and add that 
key to their authorized_keys2 file. 

Is there a better way to do this? Are there 'key' servers that 
you can upload a key to and it's sent ( or accessed ) by the
machines that you login to so you just add a key to one place
and everything you use knows about it? 

Thanks  - jack