Am So, den 28.03.2004 schrieb Ron Herardian um 15:10:
If you run ssh-keygen -t rsa1 that's right (copy identity.pub--default file name--to authorized_keys) but if you've run ssh-keygen -t dsa (it's a good idea to have all three keys, also -t rsa), then you might want to copy id_dsa.pub (default file name) to authorized_keys2. This only works without a password if there's no passphrase.
Ron
To create keypairs for SSH logins using public key authentification it is absolutely BAD and highly NOT RECOMMENDED to create keys WITHOUT a passphrase! Once the private key is stolen it can be used without problems. While it is secured by a valuable passphrase it is useless unless the thief can brute force crack the passphrase (which implies that the passphrase was badly choosen, too simple).
To get an authentification process using SSH which requires not the input of a passphrase or password (just for the first time) there are the tools ssh-agent and ssh-add. Dave explained that already in his reply.
NEVER create keypairs without a passphrase or create an account without password protection!
Alexander