New articles in Linux

Simple Remastering of RHEL / Fedora / CentOS

Fri, 22 May 2009 14:01:24 +0000

It is often the case that you wish to automate some elements of an install CD (or DVD) but don't want to go through all the steps required of doing a complete remaster. What follows is the minimum steps to add (or edit) a couple of files on a CentOS CD.

Generating and Using RSA SSH keys

Wed, 20 May 2009 17:13:44 +0000

Passwords are insecure. Unless you lock out accounts with something like fail2ban, then ssh accounts can and will be bruteforced by malicious attackers. Changing the port from 22 can help, but better still is not using passwords to secure ssh logins. Public key cryptography is the answer.

In this article, I explain how to get up and running with RSA keys in Linux.

Maintaining RAID

Mon, 11 May 2009 13:40:45 +0000

RAID is often used without much understanding of what it truly provides. People have no idea of how it can fail or what to do if it does actually fail.

Worse still, they have no idea of what maintenance RAID needs or how to see if it is working propoerly.

In this article I try to explain some of this without too much complexity.