Basically launch a terminal window from any computer, and enter:
$ ssh -i mykeypair [email protected]
On this particular image, the 'ubuntu' user has been set up as part of the sudoers group, so you can escalate to 'root' via the following command:
$ sudo -i
Now, you can install WordPress. Create and then switch to a blog directory:
$ mkdir blog
$ cd blog
Download WordPress directly to you by using wget:
$ wget http://wordpress.org/latest.tar.gz
Then unzip the package using:
$ tar -xzvf latest.tar.gz
The WordPress package will extract into a folder called wordpress in the same directory that you downloaded latest.tar.gz.
Next, enter "exit" and disconnect from this SSH session.
Next, SSH into another virtual machine and install MySQL and use these instructions to install the WordPress database using the MySQL Client from a command line: Using the MySQL Client - Wordpress Codex.
Memcache makes Wordpress database reads and writers more efficient, so your virtual servers can go to work for you in a scalable manner. SSH to a third virtual machine and install Memcache:
$ apt-get install memcached
