Linux - NewbieThis Linux forum is for members that are new to Linux.
Just starting out and have a question?
If it is not in the man pages or the how-to's this is the place!
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
There are three basic issues the present security threats. One is external threats like rootkit, spyway and malware. Two is faulty programs. Some very very trusted apps have been found since 2006 to have major flaws. Lastly is how the system is configured. Most distro's have gone away from being totally open running on root. Still many are left quite open on many fronts.
Most security firms simply rely on the age old reload entire OS from known good sources.
Personally I'm most afraid of firmware backdoors. I.e. a HDD firmware can be maliciously modified in a way that it hijacks the bootloader execution upon boot and patches the kernel appropriately to enable concealed backdoor access. It can also hide itself by making it look like the HDD contains unmodified boot sector (embedded area) when the user tries to verify the integrity. It's impossible to get rid of by formatting and reinstalling the OS.