SSH Without A Password
Categories: Information Technology, System Administration, UNIXZach has posted a good quick reference for setting up SSH to use a shared key for authentication instead of a password on a UNIX system. It’s important to keep your keys secure, but this can allow you to set up scripts to execute commands or move files between multiple hosts without prompting for passwords.
If memory serves this type of authentication is enabled by default on most ssh servers, but if it doesn’t work talk to your sys-admin to see if it is disabled.
6 Responses to “SSH Without A Password”
-
Zach Says:
June 16th, 2006 at 8:31 amYour link is a little screwy there.
-
Jon Says:
June 16th, 2006 at 9:12 amA little? I guess that’s what happens when you forget to close quotes in a link.
Link fixed. Sorry everyone.
-
Marc Says:
June 17th, 2006 at 12:50 amI’d be surprised to find key authentication disabled as it’s more secure than password authentication. If anything, I would expect password auth to be disabled – in fact, I’ve done this on my home server to help deter script kiddies from doing password attacks.
-
Jon Says:
June 18th, 2006 at 5:55 pmGood point Marc. Now that you mention it, some of the information we send between colleges is done over SSH where passwords are disabled.
-
Nikunj Khakhar Says:
November 14th, 2006 at 6:02 amyou can connect the through ssh w/o entering password using ssh-key gen and copy the public key into the other servers.
regards …nikunj..system Engineer-UNIX…India.
-
Jon Emmons Says:
November 14th, 2006 at 8:26 amNikunj,
That is exactly what Zach’s article shows with full details on what the file should be named etc.
