White Papers

Block OS fingerprinting on Linux/UNIX systems

Overview When an attacker attempts to penetrate a targeted Linux/UNIX system, the first task involved is usually to discover which OS the system is running and then compromise it with known exploits. If you can thwart an attacker from identifying the OS, then you can make it much harder and more time-consuming for the attacker to compromise the system. One of the most popular tools for revealing the OS is Nmap. This sample hack from O'Reilly's Network Security Hacks shows how to effectively block Nmap from "fingerprinting" a Linux/UNIX system.

Title: Network Security Hacks
ISBN: 0596006438
Published: April 2004
Author: Andrew Lockhart
Chapter: Hack 86: Write Your Own Snort Rules
Published by O'Reilly

Special offer: If you decide that you want to buy the whole book, you can save over 20% when you purchase the Network Administrator Hacks Pack, which includes Network Security Hacks along with Windows XP Hacks and Windows Server Hacks.

Download White Paper

By downloading you agree to our Terms and Conditions. These include information regarding use of your personal data.

Publisher
TechRepublic
File Format
PDF
Date Published
May 16, 2006
Format
White Papers
Topics
Training and Certification

Similiar White Papers

Improve network performance with IGP route redistribution, route summarization, and default routing

Improve network performance with IGP route redistribution, route summarization, and default routing

This sample chapter, taken from CCIE Routing and Switching Official Exam Certification Guide, 2nd Edition, discus

Publisher: TechRepublic  |  Tags: network

Take control of Solaris 10 system boot and shutdown procedures while studying for the system administration exam

Take control of Solaris 10 system boot and shutdown procedures while studying for the system administration exam

This sample chapter, taken from Solaris 10 System Administration Exam Prep 2, discusses the boot and shutdown ope

Publisher: TechRepublic  |  Tags: solaris

Use this simple letter of agreement for your quick consulting jobs

Use this simple letter of agreement for your quick consulting jobs

Your smaller projects may not require a full-blown contract, but you should still get the arrangement in writing. A lett

Publisher: TechRepublic  |  Tags: html

10 extra questions to help you make the best help desk hire

10 extra questions to help you make the best help desk hire

Finding a good help desk analyst requires more than simply assessing candidates' technical abilities. Here are 10 questi

Publisher: TechRepublic  |  Tags: html, operating systems

Prepare for CompTIA's Network+ exam with more than 100 practices questions on network media and topologies

Prepare for CompTIA's Network+ exam with more than 100 practices questions on network media and topologies

This sample chapter, taken from Network+ Certification Practice Questions Exam Cram 2 (Exam N10-003), 2nd Edition

Publisher: TechRepublic  |  Tags: network

TechRepublic White Papers

Build your own consulting contract using this sample form

Build your own consulting contract using this sample form

Both independent consultants and their clients benefit when they're working with a solid contract. Download this sample

Publisher: TechRepublic  |  Tags: html

Say 'no thanks' the right way with this sample rejection letter

Say 'no thanks' the right way with this sample rejection letter

It's a good practice to let job candidates know when they haven't gotten the job. Use this sample thanks-but-no-thanks l

Publisher: TechRepublic  |  Tags: html

Step by step: Configure a Windows Server 2003 VPN?Server side

Step by step: Configure a Windows Server 2003 VPN?Server side

Set up a Windows Server 2003-based PPTP virtual private network (VPN) with this step-by-step installation and configurat

Publisher: TechRepublic  |  Tags: authentication, html, network, server, vpn, windows server

Download this sample IT due diligence report template

Download this sample IT due diligence report template

Performing a technology due diligence is a good way to understand your client's technology and assess the financial impl

Publisher: TechRepublic  |  Tags: due diligence

Define project expectations with this criteria acceptance form

Define project expectations with this criteria acceptance form

Establishing acceptance criteria at the beginning of a project helps ensure that the results are well received. This sam

Publisher: TechRepublic  |  Tags: html