Linux Internet Server Security

Security configuration and set-up for Linux servers exposed to the internet: Any computer connected to the internet will require steps and precautions to be taken to reduce the exposure to hacker threats. Web, mail and DNS servers are especially vulnerable. Large operations will hide behind a CISCO firewall for most of their protection. The Linux server must be configured for network security and have its applications and services configured for security. This tutorial covers steps and tools which can be used to monitor and counteract hacker threats. Simply put, it is security risk management.

This tutorial will cover basic installation and configuration for:

    * # Basic Security Steps / Overview
    * # Apache: web server security tips.
    * # SSH: Secure Shell (encrypted telnet session)
    * # PortSentry: monitoring network probes and hack attacks and stopping them.
    * # Tripwire: security monitoring your system for changes and questionable files.

Performing A Security audit:

    * # Chkrootkit: Hunt for trojan commands, worms and known exploits
    * # NESSUS: Performing a network vulnerability scan/security audit of your system.