Linux security tutorials

Overview

Here are some Linux security tutorials:

Basic Linux security

Computer security has become a critical subject in information technology system these days. If we looked back in history, the security threat has started a long time ago during 1970s when telephone system has been hacked.

Setup firewall in Ubuntu

There are two types of firewalls available in Linux, a packet filtering firewall and a proxy-based firewall. Most Linux users use a packet filtering firewall to setup a basic firewall for their system because Linux already came with firewall package by default.

How to upgrade software

You can always use Slackware package management tool such as slackpkg to upgrade software or install security patches for your Slackware system. However, the ftp server mirrors took sometimes to update the latest software or security patches to their server.