Technical Tutorials and Information

Overview

Here is a collection of technical information and tutorials, some have been produced to help some clients. The source files & other code to these tutorials is usually made available for you to use.
You may used this code & these files as the basis your own (or organisation's/company's) project(s) (under whatever licence that you see fit). You may not claim ownership or copyright of any substantially unmodified files. Acknowledgement would be appreciated, but is not necessary.

Linux & Unix

Topics of Linux and Unix

• Generate an up to date image to install a CentOS or RedHat system over the network
• Notes on implementation of IPv6 on a Linux machine
• Aspects of Shell Scripting.
• Bash and Ksh reference. How to recall and edit your command line history using the GNU Bourne-Again and the Korn shells.
• A Quick Vi/Vim tutorial.
• Passwordless logins with ssh - the Secure Shell.
• Checking a ssh server key fingerprint

Email

Topics in Email

• Greylisting with exim — this is a spam reduction technique.

Web Technologies

• Forms for use over the web, done simply and quickly.
  This uses php, smarty, quickform.
• How to find out who links to you and what search engine hits you get, all in php.
• References for PHP programmers
• Tooltips in CSS no Javascript needed