Using SSH keys without entering a password

Thanks to my friend, Cade, and a number of websites, I was able to figure out how to ssh into my servers at home and work, without entering a password. Here’s how I did it:

1. From the box that you primarily work from, run ssh-keygen -t rsa -b 2048. From here, two keys are created: id_rsa and id_rsa.pub. The id_rsa is the private key that you will keep on your primary machine. The id_rsa.pub is what will be pushed to the servers you wish to connect to, without using a password.

2. Put id_rsa in your /home/user/.ssh directory on the primary machine and put id_rsa.pub on the server in /home/user/.ssh directory.

3. Rename id_rsa.pub to authorized_keys2 on the server. At this point, you should be able to connect from your primary machine without a password. It should be noted, however, that since the authorized+keys2 file under /home/user/.ssh, that you can only connect without a password as that user, not as root. If you wanted to do the same thing as root (which is not recommended, since we really shouldn’t ever connect to a box as root, without SUing), you’d simply put your authorized_keys2 file under /.ssh.

Note:  Your authorized_keys2 needs to have permissions of 0600.

Special thanks to the following websites, which helped a great deal:

http://www.guyrutenberg.com/2007/10/05/ssh-keygen-tutorial-generating-rsa-and-dsa-keys/ has a good tutorial that takes you to the point of creating the private and public keys.

http://www.electrictoolbox.com/article/linux-unix-bsd/create-rsa-dsa-keys-ssh/

http://linux.byexamples.com/archives/297/how-to-ssh-without-password/

"Night before shinsplints" was prophetic…(What Hurts)

So here’s what hurt so bad during and after marathon, 2007:

Shinsplints, upper-middle of back, sides of my butt, quads, right-inside ankle, ITB (both knees, but mainly left during run), lower calves, backs of my knees (especially the right one).  But at the half way point of the marathon, my feet hurt!  I’m not sure if it’s the design of the shoes, or if it’s just the grueling downhill.