This Question was answered on ServerFault by the asker. I am adding his answer here as a community wiki.
Here is the full solution, thanks to michaelmior for his help, it got me half way.
-
Run this command to generate keys:
ssh-keygen
You’ll get this output:
Generating public/private rsa key pair. Enter file in which to save the key (/home/user1/.ssh/id_rsa): Created directory ‘/home/user1/.ssh’. Enter passphrase (empty for no passphrase): (just hit enter, no need for a password) Enter same passphrase again: (same thing, hit enter again) Your identification has been saved in /home/user1/.ssh/id_rsa. Your public key has been saved in /home/user1/.ssh/id_rsa.pub. The key fingerprint is: xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx [email protected]
-
Add the public key to your
authorized_keys
file -
Move the
id_rsa
andid_rsa.pub
to/usr/local
-
chown
the files to the same user as your webserver (in my case apache) -
chmod
the files to 600:chmod 600 id_rsa*
This should now work.
However, my installation kept hanging, a quick look at the httpd error_log file show me:
PHP Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 2966269 bytes) in /var/www/sites/....
Adding this code to the WordPress wp-config.php
file to temporally increase the amount of memory available:
define('WP_MEMORY_LIMIT', '64M');