The soft chewy center of the Internet

DNS Attacks

Article from Issue 95/2008
Author(s):

Are your systems secure against DNS attacks? We'll show you why they matter and help you determine whether you are vulnerable.

Like most of the original protocols on which the Internet is based, the original design decisions that led to their popularity and success are now coming back to haunt us with security problems.

Keep in mind that when the Internet was originally created, it was a relatively small, well-connected community. Security was not particularly high on the list of concerns – just getting it to work and do useful things was amazing enough.

Why DNS Attacks Matter

As I'm sure you know, DNS provides one of the fundamental infrastructure services on the Internet – specifically, the translation of human-readable names such as http://www.linux-magazine.com to an IP address such as 80.237.227.148.

[...]

Use Express-Checkout link below to read the full article (PDF).

Buy this article as PDF

Express-Checkout as PDF
Price $2.95
(incl. VAT)

Buy Linux Magazine

SINGLE ISSUES
Print Issues
Digital Issues
 
SUBSCRIPTIONS
Print Subs
Digisubs
 
TABLET & SMARTPHONE APPS
Get it on Google Play

US / Canada

Get it on Google Play

UK / Australia

Related content

  • ARP Spoofing

    Any user on a LAN can sniff and manipulate local traffic. ARP spoofing and poisoning techniques give an attacker an easy way in.

    more »
  • ARP Spoofing Attacks

    ARP spoofing can be used to initiate denial-of-service attacks, network hijacking, and man-in-the-middle attacks on the Intranet. We look at how to prevent these incursions.

    more »
  • Hotspotter

    Security experts are always concerned with WLAN access points, but they sometimes forget that the client is also open to attack. Public hotspots make it quite easy for attackers to hijack connections, as the Hotspotter tool demonstrates.

    more »
  • Hping

    Don't let intruders crash your dance. We'll show you how to test your firewalls and intrusion detection systems with hping.

    more »
  • TCP Hijacking

    It is quite easy to take a TCP connection down using a RST attack, and this risk increases with applications that need long-term connections, such as VPNs, DNS zone transfers, and BGP. We’ll describe how a TCP attack can happen, and we’ll show you some simple techniques for protecting your network.

    more »
comments powered by Disqus