TCP Hijacking Understanding and preventing TCP attacks

Aug 31, 2005

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.

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Socks 5 Examining the generic Socks version 5 proxy protocol

Jun 30, 2005

Socks is a universal proxy protocol for TCP and UDP that allows internal hosts to securely pass the firewall and authenticates users. This article describes the latest version of the Socks proxy protocol and shows how to implement it.

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ARP Spoofing ARP spoofing and poisoning

Jun 30, 2005

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

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Security Intro Knowing the ways of the enemy

Jun 30, 2005
Most users have become so accustomed to networking that they never stop to ask if anyone may be listening. We all k......
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SSPE Security Policies SSPE: Managing security policies for multiple firewalls

Jun 30, 2005

The Simple Security Policy Editor (SSPE) helps you organize your network and keep track of security policies across multiple firewalls. You can reference a central policy to generate rulesets for packet filters and VPN gateways.

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Books

Jun 30, 2005
Linux Quick Fix Notebook The Art of Computer Virus Research and Defense Linux in a Windows World...
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Charly's Column The Sysadmin’s Daily Grind: Mail and Queuegraph

May 31, 2005

Worms, mail bombs, and users who send multiple megabyte Powerpoint files across the wire give Postfix administrators plenty of reasons to view their charges with a critical eye from time to time.

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Charly's Column The Sysadmin’s Daily Grind: Smokeping

Apr 30, 2005

If you do not receive a response to a ping, or if the response is seriously delayed, you might like to take this as a warning. But who wants to ping all day? You need a ping-based monitoring utility like Smokeping.

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