THe dreaded 14120 error; it's caused much grief in the ISA Server community. What is it and what can be done about it?
Added: 01/29/2003,
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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.
Added: 01/28/2005,
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Of all the mysteries confronted by the ISA Server administrator, perhaps the most difficult one to solve is how to configure intradomain communications across the ISA Server. This tutorial will explain how this can be done.
Added: 06/30/2002,
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The fourth article in Leo’s Learn Network Security series explains firewall concepts and provides an introduction to Microsoft’s Internet Security and Acceleration (ISA) Server.
Added: 03/05/2002,
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This new Tutorial will cover using the built in features of ISA to monitor connections, services, publishing and other aspects of ISA
Added: 06/30/2002,
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The seventh article in Leo’s Learn Network Security series provides an overview of importing and exporting firewall security rules with ISA Server, as well as enabling intrusion detection settings.
Added: 08/07/2003,
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Configuring a gateway to gateway VPN is easy using ISA Server. The reason why it's so easy is that the Local and Remote VPN Wizards make the setup a virtual no-brainer. Well, it's a no-brainer when you're configuring PPTP VPN gateways. But if you're in the market for a high security L2TP/IPSec gateway to gateway VPN, you probably have either been trying to avoid it like the plague or you are pulling your hair out trying to figure out how to make it work!
Added: 06/09/2004,
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In part 1 of this series on how to configure an L2TP/IPSec gateway to gateway VPN solution, we examined how to configure the certificate infrastructure and assign machine certificates on the local network. This week, we'll complete our gateway to gateway VPN configuration.
Added: 06/09/2004,
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Have you wanted to log to a database, but you didn't have a Microsoft SQL Server sitting around? Then Brian Bailey has some good news for you! Brian shows you in this article how to get ISA Server 2000 to log to a MySQL database.
Added: 12/16/2003,
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Before you install ISA, you have to properly set up the networking properties for that machine. Mistakes made either during or after installing ISA server can render your once proud server unresponsive.
Added: 07/29/2002,
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If you're using your ISA Server firewall as a VPN gateway, you're probably using MS-CHAPv2 authentication and the PPTP VPN protocol. While that provides decent security for your gateway to gateway link, how about moving to the next level? That's right, use EAP/TLS certificate authentication and L2TP/IPSec.
Added: 12/16/2003,
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VPNs have been a topic of growing interest for the last couple years. However, since the tragic events in New York City in September of 2001, the subject has become red-hot. Why? Business and network managers now have a greater awareness that the weakest link in any design, whether it be a network or a business, is too high a level of centralization. Distributed systems are highly fault tolerant and difficult to bring down, while centralized systems can be brought to their knees with a single blow.
Added: 06/09/2004,
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This tutorial shows how to configure an ISA Server solution on a large network. Includes helpful diagrams.
Added: 09/15/2001,
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This tutorial provides a description on how to set up a “simple” network using the ISA Server as a Web Proxy Cache and Firewall.
Added: 07/29/2002,
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One of the most frequent pieces of advice I give is to disable anonymous access. What exactly do I mean? I'm sure many of you have asked that question! Check out this article an get an explanation of my request to "disable anonymous access"
Added: 12/16/2003,
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This tutorial shows how to set up DNS correctly for use with an ISA Server.
Added: 09/15/2001,
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A problematic situation with the ISA Server 2000 firewall was that once a VPN client connected to the ISA Server 2000 firewall, they could not connect to the Internet using their default SecureNAT client configuration.
Added: 05/06/2005,
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If you’re just getting started with ISA Server you might find that its hard to tell where the place is to start. This tutorial shows how to use ISA Server.
Added: 07/29/2002,
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I get a lot of questions about how can ISA Server be used to block dangerous applications. What is a dangerous application?
Added: 06/09/2004,
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Need to publish a VNC server on your internal network? Then check out this article by Greg Mulholland.
Added: 01/29/2003,
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