David has been computing since 1984 where he instantly gravitated to the family Commodore 64. He completed a Bachelor of Computer Science degree from 1990 to 1992, commencing full-time employment as a systems analyst at the end of that year. David subsequently worked as a UNIX Systems Manager, Asia-Pacific technical specialist for an international software company, Business Analyst, IT Manager, and other roles. David has been the Chief Information Officer for national public companies since 2007, delivering IT knowledge and business acumen, seeking to transform the industries within which he works. David is also involved in the user group community, the Australian Computer Society technical advisory boards, and education.
Whether your Linux box has hundreds of users or just one account for you and one for your dog it is important to understand how Linux user accounts work. There are GUI tools for this within GNOME and KDE but here we lift the lid on the bonnet to show what really makes a user exist, and what these commands are doing to your filesystem.
Mark this Saturday, September 15th, in your diary. It’s Software Freedom Day and it’s coming to you. That's "free" as in "free lunch" but also "free" as in liberty.
An intrusion detection system – or IDS – is a high-tech burglar alarm, keeping a watchful eye on your computer and alerting when computer or network activity indicates unauthorised or malicious activity. An IDS is a must-have app, and Snort is rapidly becoming the tool of choice.
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