1. ssh to server1
Connect to server1 and generate a public/private key pair.
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ssh myusername@server1password:ssh-keygen -t rsa |
When you run this command you will be prompted to answer several questions. Just hit enter each time until you are returned to a prompt.
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Generating public/private rsa key pair.Enter file in which to save the key (/home/local/myusername/.ssh/id_rsa):Created directory '/home/local/myusername/.ssh'.Enter passphrase (empty for no passphrase):Enter same passphrase again:Your identification has been saved in /home/local/myusername/.ssh/id_rsa.Your public key has been saved in /home/local/myusername/.ssh/id_rsa.pub.The key fingerprint is:15:68:47:67:0d:40:e1:7c:9a:1c:25:18:be:ab:f1:3a myusername@server1The key's randomart image is:+--[ RSA 2048]----+| .*Bo=o || .+o.* . || ...= . || + = || S + || . || . . || E+ || oo. |+-----------------+ |
Now you will need to copy the public key you just generated and save it somewhere, you will need it later. Also ensure when you copy the key that the text is all on one line, if there are line breaks in the text, it will cause problems later when you try and use the key.
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cd .sshcat id_rsa.pubssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAyFS7YkakcjdyCDOKpE4RrBecRUWShgmwWnxhbVNHmDtJtKPqdiLcsVG5PO94hv3A0QqlB1MX33vnP6HzPPS7L4Bq+5plSTyNHiDBIqmZqVVxRbRUKbP44BaA9RsW2ROu8qdzmXRPupkyFBBOLa23RJJojBieFGygR2OwjS8cq0kpZh1I3c1fbU9I5j38baUK0naTBe2v7s/C8allnJhwkfds+Q9/kjaV55pMZIh+9jhoA8acCA6B55DYrgPSycW6fEyV/1PIER+a5lOXp1QCn0U+XFTb85dp5fW0/rUnu0F9nBJFlo7Rvc1cMuSUiul/wvJ8tzlOhU8FUlHvHqoUUw== myusername@server1 |
2. ssh to server2
Now we will copy the public key from server1 to server2.
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ssh myusername@server2password:mkdir .sshcd .sshvi authorized_keys# paste the public keychmod 600 authorized_keys |
3. Test that your setup is working
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ssh myusername@server1password:ssh myusername@server2# you should not be prompted for a password! |