LinuxSecurity.com
Share your story
The central voice for Linux and Open Source security news
Home News Topics Advisories HOWTOs Features Newsletters About Register

Welcome!
Sign up!
EnGarde Community
Login
Polls
What is the most important Linux security technology?
 
Advisories
Community
Linux Events
Linux User Groups
Link to Us
Security Center
Book Reviews
Security Dictionary
Security Tips
SELinux
White Papers
Featured Blogs
All About Linux
DanWalsh LiveJournal
Securitydistro
Latest Newsletters
Linux Advisory Watch: September 19th, 2014
Linux Security Week: September 15th, 2014
Subscribe
LinuxSecurity Newsletters
E-mail:
Choose Lists:
About our Newsletters
RSS Feeds
Get the LinuxSecurity news you want faster with RSS
Powered By

  
Simple Commands for Intrusion Detection Print E-mail
User Rating:      How can I rate this item?
Features Have you ever suspected or been notified that your Linux system is under attack? How do you determine whether your system has been compromised? This document is intended to explain how an administrator can implement basic security incident investigation techniques. r>

Background

As mentioned in the Intrusion Detection Primer,the process of preventing and detecting security breaches by monitoring user and application activity is known as intrusion detection. It is a proactive process that requires the constant attention. In this document I explain step-by-step how to monitor user and application activity using standard Linux/Unix commands. This document is intended to be read by novice Linux who are interested in security.

Who are the intruders and where are they from? Intruders may be curious teenagers, disgruntled employees, or even professional criminals from rival companies. Attacks can originate from practically anywhere in the world via the Internet or dialup lines. This fact makes intrusion investigation a difficult task.


Types of Intrusion Detection

Intrusion detection can be broken down into five types. These types include file integrity checking, log file monitoring, host based ID (intrusion detection), network based ID, and administrator based monitoring.

Checking file Integrity: This is the process of checking files to determine whether unauthorized changes to files have been made. Many times the program Tripwire is used to automate this process.

Only registered users can write comments.
Please login or register.

Powered by AkoComment!

 
< Prev   Next >
    
Partner

 

Latest Features
Peter Smith Releases Linux Network Security Online
Securing a Linux Web Server
Password guessing with Medusa 2.0
Password guessing as an attack vector
Squid and Digest Authentication
Squid and Basic Authentication
Demystifying the Chinese Hacking Industry: Earning 6 Million a Night
Free Online security course (LearnSIA) - A Call for Help
What You Need to Know About Linux Rootkits
Review: A Practical Guide to Fedora and Red Hat Enterprise Linux - Fifth Edition
Yesterday's Edition
Google to turn on encryption by default in next Android version
TOR users become FBI's No.1 hacking target after legal power grab
OWASP Releases Latest App Sec Guide
Partner Sponsor

Community | HOWTOs | Blogs | Features | Book Reviews | Networking
 Security Projects |  Latest News |  Newsletters |  SELinux |  Privacy |  Home
 Hardening |   About Us |   Advertise |   Legal Notice |   RSS |   Guardian Digital
(c)Copyright 2014 Guardian Digital, Inc. All rights reserved.