imported>ThorstenStaerk |
imported>ThorstenStaerk |
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| − | With Linux, it is possible to log in to a remote computer without having to type a password. You authenticate yourself with your "digital signature" and your public key. Let's say you are ''root'' on computer ''earth'' and want to log in to ''mars''. Start creating a public/private key pair:
| + | #REDIRECT [[passwordless logins]] |
| − | ssh-keygen -t dsa
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| − | Generating public/private dsa key pair.
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| − | Enter file in which to save the key (/root/.ssh/id_dsa):
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| − | Enter passphrase (empty for no passphrase):
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| − | Enter same passphrase again:
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| − | Your identification has been saved in /root/.ssh/id_dsa.
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| − | Your public key has been saved in /root/.ssh/id_dsa.pub.
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| − | The key fingerprint is:
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| − | b7:b4:64:73:ef:4e:8a:df:d2:8c:16:ca:df:08:48:ec ''root''@''earth''
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| − | ''mars'' must know your public key and understand it is authorized. So, copy your public key to ''mars'':
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| − | scp /root/.ssh/id_dsa.pub root@mars:/root/.ssh/authorized_keys
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| − | Now you can securely login without having to give your password.
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| − | ''earth'':~ # ssh ''root''@''mars''
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| − | Last login: Sun Oct 5 21:00:50 2008 from tweedleburg.site
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| − | Have a lot of fun...
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| − | ''mars'':~ #
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