ISAserver.org Articles & Tutorials Archive

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Articles & Tutorials for January, 2005

Announcing update of the 'How to pass IPSec traffic through ISA Server' article: Date - Jan 29, 2005; Author - Stefaan Pouseele; Section - Site News; As from january 2005 the IPSec NAT-T solution is fully standarized by the IETF IPSec Working Group and published as the RFC's 3947 and 3948. This is an important milestone to remove the last barrier to deploy the IPSec protocol in a client-to-gateway VPN scenario.
A Method to Block Users via MAC Address Using the Sygate Personal Firewall to Complement ISA Firewall Security: Date - Jan 28, 2005; Author - Syed Jahanzaib; Section - Articles; I usually receive mail, especially from cable.net operators, asking how to block users via their MAC Address using ISA Server as user id or IP address based security restriction is not much highly secure as users on LAN can share there IP’s and User IDs. But changing MAC address is quite difficult (not impossible) as compare to changing IP or id. This article shows you how to block connections based on MAC address.
Exclusive! 50 Signed Copies of Tom & Deb Shinder’s Configuring ISA Server 2004 to be Won!: Date - Jan 19, 2005; Author - The Editor; Section - Site News; Throughout the months of January and February 2005 ISAserver.org, the No.1 unofficial ISA Server website, in collaboration with Syngress Publishing, will be giving away 50 copies of Tom & Deb Shinder’s Configuring ISA Server 2004 signed by the authors.
Enabling NLB Bi-Directional Affinity (BDI) on ISA Server 2004 Standard Edition Firewalls: Date - Jan 18, 2005; Author - Thomas Shinder; Section - Articles; Want to enable NLB with bidirectional affinity on your Standard Edition ISA firewalls? There are some potential problems, but if you're game, check out this article for details on how to do it.
The ISA Firewall's Default Post Installation System Policy and Configuration: Date - Jan 15, 2005; Author - Thomas Shinder; Section - Articles; ISA Firewall System Policy is a collection of Access Rules controlling access to and from the Local Host network. System Policy controls access to and from the system. You do not configure System Policy for network access between any other hosts. One of the most common errors made by new ISA firewall administrators is to use System Policy to control access from Protected Network hosts to non-Protected Network hosts. This article describes the default ISA firewall System Policy and provides some guidelines on how to make changes from the default.
Comparing the ISA Firewall to non-ISA Firewall Solutions: Date - Jan 11, 2005; Author - Thomas Shinder; Section - Articles; It hasn’t been easy, trying to do our part to introduce ISA firewalls to the IT security community. Once we get past the basic questions "Is ISA Server really a firewall?" and "How do I run the ISA box with a single NIC", the next thing potential users want to know is inevitably, "How does the ISA firewall compare to other firewalls?" That's a good question and this article kicks off a series where we compare the ISA firewall to the other major players in the firewall market.
Configuring Sites for Direct Access: Part 2 – Configuring Direct Access for Firewall Clients and Publishing Scenarios: Date - Jan 04, 2005; Author - Thomas Shinder; Section - Articles; In the first part of this two part series on configuring the ISA firewall to support Direct Access, we discussed how to configure the ISA firewall to support Direct Access for Web Proxy clients so that Web Proxy could access problematic Web sites. If you missed that article, check it out at http://isaserver.org/articles/2004directaccessp1.html In this, part 2 of the series, we’ll talk about Direct Access for Firewall clients and we’ll also discuss how Direct Access is important in Web and Server Publishing scenarios.
Configuring Sites for Direct Access: Part 1 – Configuring Direct Access for Web Proxy Connections: Date - Jan 03, 2005; Author - Thomas Shinder; Section - Articles; One of the most common pieces of advice I give regarding ISA firewall access rules and firewall policy is "setup a split DNS and configure those sites for Direct Access". In the first part of a two-part series on Direct Access, I'll discuss what Direct Access is and how to Configure Direct Access for Web Proxy clients.
How to build an ISA firewall lab with Virtual PC 2004: Date - Jan 02, 2005; Author - Stefaan Pouseele; Section - Articles; You bought yourself or convinced your boss to buy for you a new desktop or laptop with a fast processor, plenty of disk space and 2 Gbyte of memory. You have already installed Windows XP SP2 and Virtual PC 2004 SP1 on the box and now you wonder how to use that nice piece of hardware and software to implement an ISA firewall lab. If you want to know how to make use of the advanced networking features of Virtual PC 2004, read on.