quick buy | add to cart | subscription Port knocking from the inside out

   
From Hakin9 magazine: No 11/2005 (6) VPN Discovery 6/2005

Martin Krzywinski
Leaving a port open to the public is like an invitation for an intruder. Unfortunately, most services such as HTTP or SMTP need to be open for everyone to see. However, some of the more critical services may be accessible only when required. Here's where port knocking comes in.

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quick buy | add to cart | subscription Total control – low-level network access

   
From Hakin9 magazine: No 11/2005 (6) VPN Discovery 6/2005

Konrad Malewski
Developing applications that directly access layers of the ISO/OSI model can be a difficult task, frequently requiring non-standard packet formatting. Help is at hand, however, in the form of the WinPcap and libnet libraries, which put the programmer in total control of the content being sent out into the network.

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quick buy | add to cart | subscription Attacks on layer two of the OSI model

   
From Hakin9 magazine: No 11/2005 (6) VPN Discovery 6/2005

Alfredo Andrés, David Barroso
Layer two of OSI model is one of the weakest links when trying to assure network security in an organization. It is also one of the most commonly ignored, because there aren't many public implementations of layer two attacks. However, a successful attack on layer two can be just as dangerous as any other.

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quick buy | add to cart | subscription Wi-Fi security – WEP, WPA and WPA2

   
From Hakin9 magazine: No 01/2006 (7) Haking Wi-Fi 1/2006

Guillaume Lehembre
Wi-Fi (Wireless Fidelity) is one of today’s leading wireless technologies. However, one configuration aspect all too often goes unnoticed: security. Let's have a closer look at the level of security of encryption methods used in modern Wi-Fi implementations.

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quick buy | add to cart | subscription Detouring network firewalls

   
From Hakin9 magazine: No 01/2006 (7) Haking Wi-Fi 1/2006

Oliver Karow
Firewalls also have their weaknesses and detouring them, both due to misconfiguration and due to product weaknesses, is possible. Oliver describe how an intruder can gain access to a system by detouring a firewall.

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quick buy | add to cart | subscription Security Tools – Sendip

   
From Hakin9 magazine: No 01/2006 (7) Haking Wi-Fi 1/2006

Piotr Sobolewski
SendIP makes it possible to prepare and send network packets using the NTP, BGP, RIP, RIPng, TCP, UDP and ICMP protocols, as well as raw IPv4 and IPv6 packets with user-supplied parameters and arbitrary data.

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quick buy | add to cart | subscription Voice over IP security - SIP and RTP protocols

   
From Hakin9 magazine: No 09/2005 (5) Anatomy of pharming - how your money is stolen 5/2005

Tobias Glemser, Reto Lorenz
We provide a detailed overview of protocols used in Voice over IP (VoIP) transmissions, particularly of the SIP protocol. Then we take a look at seven most common, most effective and best-described methods of attacking VoIP, and how these methods can be applied in practice.

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quick buy | add to cart | subscription Security Tools - Firestarter 1.0.3

   
From Hakin9 magazine: No 09/2005 (5) Anatomy of pharming - how your money is stolen 5/2005

A graphical interface for creating simple rules for a netfilter/iptables-based firewall.

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