sometimes it become bored when you need to key in the password each time you want to login to the server by using ssh..so how to login through ssh without a password?
this step need to be once only and it done from client side only:
#ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
c1:7b:fe:cc:32:9f:51:6b:0d:be:5c:6d:b0:94:b9:fc root@bordersmart
#scp /root/.ssh/id_rsa.pub user@targetserver.com:/root/.ssh/authorized_keys
Now try login to targetserver.com
#ssh targetserver.com
It will not prompt a password. Done. Anyway, try google about DSA vs RSA. There are differents, but it depend how the usage.
Wednesday, April 22, 2009
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