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Accelerating Unified Threat Management With Specialized Hardware
White Papers It also says that firewall technology itself evolved from network router technology, and at inception was little more than a network router with packet filtering capabilities. The "Security Versus Performance" dilemma has been alleviated by...
[June 20, 2009, 1:21]
Firewall Facts: What It Can Do to Protect Your Computer
White Papers Each packet is given from one machine to another in a network. This is used to send or receive a packet of information no matter if one computer is two feet or in another country from the destination computer.
[June 9, 2006, 0:00]
Effect of Windows XP Firewall on Network Simulation and Testing
White Papers Two different techniques, Cisco Networking Academy hardware lab and Cisco Packet Tracer 4, were used to compare their performance to simulate network connectivity. Primary findings showed that the settings of the Windows XP firewall on the host...
[August 23, 2007, 1:00]
Using Cisco IOS Zone-Based and Classic Firewall in High-Availability Network Environments
White Papers This is particularly true for businesses that rely on IP data networks to carry voice-over-IP data for packet telephony. Cisco IOS Firewall offers features that address stateful failover security requirements, but specific recommendations must be...
[June 12, 2008, 1:01]
Application-Layer Security: What It Takes to Enable the Next Generation of Security Services
White Papers In this fight, Nortel Application Switches (formerly known as Alteon Application Switches) and Switched Firewall (formerly known as Alteon Switched Firewall) offer administrators an invaluable tool that is uniquely positioned to provide...
[September 15, 2007, 1:01]
Symantec kills off free Sygate firewall
Talkback I bought ZoneAlarm but even with its enhancements I still find it clutsy - and does not do exactly what it says on the packet. I tested several firewall products over a 6 month period and decided that Sygate was the best for my needs.
[May 26, 2006, 19:28]
Firewall Product Testing
White Papers Functionally, firewalls work closely with a router program to examine each network packet and determine whether to forward it toward its destination. Testing for a wide array of hardware/software levels of the firewall has not only became a...
[April 28, 2006, 1:00]
Linux 101: Configuring and managing iptables for better network security
White Papers Each individual machine, depending on its uses, might have different packet filtering needs. For Linux users, this means a firewall and the configuration of iptables. This document describes how important good iptables management is to tight...
[May 19, 2006, 1:00]
Symantec patches four critical firewall flaws
News Of the four flaws, three could allow a hacker to take control of an affected system, while one could be used to force a computer into an infinite loop by simply sending it a specially crafted packet of data.
[May 13, 2004, 13:20]
Microsoft Security Bulletin MS02-039
Downloads By sending a carefully crafted packet to the Resolution Service, an attacker could cause portions of system memory (the heap in one case, the stack in the other) to be overwritten. It is possible to create a keep-alive packet that, when sent to the...
[July 25, 2002, 8:00]
Defender of the Linux faith
News Welte is one of the core developers of the Linux kernel firewall engine Netfilter/iptables and the maintainer of the packet filter subsystem in the Linux kernel. If someone writes a firewall they are very unlikely to come up with the same error...
[March 17, 2005, 12:35]
Tech investments: Should you go for low cost or capability for growth?
News You might use a low-cost software firewall solution to protect the LAN, such as a Linux machine running ipchains (a simple packet filtering firewall), iptables/Netfilter (a stateful firewall included in versions 2.4.x of the Linux kernel...
[June 21, 2006, 16:15]
Network Box - SOHO review
Reviews The firewall is a home-grown product, offering packet and stateful inspection; the VPN security deploys 3DES and 2,048 RSA encryption algorithms; and the bi-directional mail filtering technology uses SurfControl's filters, with the ability to...
[April 16, 2003, 14:16]
Linux kernel flaw allows DoS attack
News The flaw will allow a malicious remote user to crash a PC that is running one of the affected SuSE products and a firewall, by sending a specially crafted IP packet. SuSE has advised users to disable firewall logging of IP and TCP options and to...
[October 25, 2004, 17:40]
Netgear ProSafe DGFV338 review
Reviews Using stateful packet inspection to defend against attacks, its firewall features include DoS protection (automatically detecting and thwarting DoS attacks such as Ping of Death, SYN Flood, LAND Attack and IP Spoofing), the blocking of unwanted...
[June 14, 2007, 15:03]
Beating back biggest risk - the 'inside job'
News It is a packet inspection engine that can sit anywhere inside a network and support multiple network protocols. Network-1 will discuss at the RSA conference CyberwallPlus, a suite of applications that includes CyberwallPlus VPN, a network-to...
[January 18, 1999, 10:06]
Let's get Physical ! (sorry couldn't resist...)
Blog Because security isn’t always about having multiple little devices that check each packet in lightning speed before deciding what to do with them. We all know what a complete waste a Firewall is if not properly configured and managed yes?
[July 29, 2008, 14:13]
10 things you should do to protect your network against wireless devices
News Encrypted communications can't be application layer-inspected by your stateful packet and application layer inspection firewall and thus the VPN link can be used to import all forms of network exploits from Internet servers to your network.
[June 20, 2006, 12:50]
Firewalls - back to basics
News This has the advantages over the network layer system of hiding all the details of the protected network from the outside world, and also allowing in-depth logging and control of packet movements. What is a firewall?
[October 9, 2002, 8:54]
Ex-Sun exec aims to redesign the network
News In the next few years, users will throw out all their specialist network-related boxes, and replace them with a single high powered "packet-cracker", according to John McFarlane, who used to run Sun's service provider business and, before that...
[March 7, 2002, 18:07]
