SSH known_hosts was already filled

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cejfi
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Beigetreten: 06/29/2018

Hello!

I was playing with SSH today and then I noticed that my known_host file in ~/.ssh had already 3 entries. I can't remember when I put them there and which one would be the known hosts for me. Has anyone an idea should anything be there per default or how could something land there?

P.S. There are also the files id_rsa and id_rsa.pub but there is an option that I created them (which I also can't remember).

Kind Regards

cejfi
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Beigetreten: 06/29/2018

Ahh just as I posted this question, I realized that the entries are from the server I connect to.

Stupid me ^^

BTW Is it safe to make an private / public key on my linux server and share the same private key with all the clients I want to connect with. Or should I really make key per client and put every public key to my server's authorized keys.

Kind Regards