Monthly Archives: March 2009

Passwordless login remote with SSH

generate the public keys

user1@server1> ssh-keygen –t rsa

Generating public/private rsa key pair.
Enter file in which to save the key (/home/user1/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase 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:
31:a1:c2:d7:a6:9f:27:cd:84:1f:f2:7a:e8:7c:34:80

user1@server1> cd /home/user1/.ssh
user1@server1> cp id_rsa.pub authorized_keys

Copy the file authorized_keys to server2 and it is now possible to login without password.

user1@server1> cd /home/user1/.ssh
user1@server1> scp authorized_keys server2:/home/user1/.ssh

Changing Existing WordPress Blogs Into Silo Structures

The advantage of a blog is surely that it is easy to add content.

You can optimise the blog a bit, using categories and titles in the url, but the linking inside a standard wordpress blog is, to say the least, a bit chaotic.

The best way would be is postings were linked together on the categories (topics) rather than on the date of publication.

To achieve this I wrote a wordpress silo plugin that will reorganise the linking between the posts dynamically. This means when I add a new post like the present it will automatically be inserted in the row of links for the categories.

silo Changing Existing Wordpress Blogs Into Silo Structures

So now it is only to see how the search engines will react to this.