A system for distributing SSH public keys
Suppose that I have four servers (SA, SB, SC, and SD). I want to give user X access to SA and SB. I can do it easily by
ssh -keygen -t RSA and then give X the id_rsa file. Now if I changed my mind and I want to give him access to SC and drop his access on SB. I can do it manually.
Now the question: What if I have 100 servers and 20 system admin. It would be very sophisticated process to handle it in such way. Is there a tool that can help me in managing access to servers more easily.