ISAserver.org Articles & Tutorials Archive

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Articles & Tutorials for February, 2002

Configuring ISA outbound web listener.: Date - Feb 27, 2002; Author - Ricky M. Magalhaes; Section - Tutorials / Configuration - General; In this tutorial I will show you why it is sometimes useful to change the out going web listener, and where you can change it. A listener is a port on the ISA server that is listening for TCP (transmission control protocol) connections. ISA server is configured by default to listen on port 8080 but most of the organizations I have dealt with are upgrading from either Microsoft Proxy or from another type of Fire walling product and they have quite a few web proxy clients that have a hard coded proxy setting within their Internet explorer browser.
Port Scanning ISA Server: Date - Feb 27, 2002; Author - Thomas Shinder; Section - Tutorials / Configuration - Security; When I wrote my series on how to secure your ISA Server installation, I had it in mind that ISA Server administrators could use the information to confirm whether or not their ISA Server installations we’re secure. We got some good feedback on the series, but you wanted more! Specifically, you wanted to know how you could test (via port scanning tools) what ports and services were visible and available on the external interface of the ISA server.
Audit and reporting in Microsoft Windows NT and Microsoft Windows 2000.: Date - Feb 21, 2002; Author - The Editor; Section - White Papers; This white paper demonstrates that the audit and reporting facilities in Microsoft Windows NT and Microsoft Windows 2000, although a good foundation, fall far short of fulfilling real-life business needs (i.e., monitoring Windows NT/2000 computers in real-time, periodically analyzing security activity, and maintaining a long-term audit trail).
Configuring Gateway to Gateway L2TP/IPSec VPNs Part 1: Configuring the Infrastructure: Date - Feb 20, 2002; Author - Thomas Shinder; Section - Tutorials / Configuration - Security; 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!
ISA Server Security Checklist - Part 1: Securing the Operating System and the Interface: Date - Feb 05, 2002; Author - Thomas Shinder; Section - Tutorials / Configuration - Security; ISA Server is all about security. ISA is about securing network access into and out of the internal network. But after you’ve done all of your configuring, how do you know that you’ve done an adequate job of securing the internal network and the system that ISA Server is running on?
ISA Server Security Checklist - Part 2 Securing the ISA Server Configuration: Date - Feb 05, 2002; Author - Thomas Shinder; Section - Tutorials / Configuration - Security; In part one of our ISA Server Security checklist series, we talked about how to secure the operating system and network interfaces on the ISA Server. In part 2 we'll focus on ISA Server specific configuration issues that you can use to optimize security.
Using routing rules.: Date - Feb 04, 2002; Author - Ricky M. Magalhaes; Section - Tutorials / Configuration - General; Routing rules are part of the Network Configuration module of ISA and enable you perform various operations described below when configured correctly. This type of tool is very useful in the majority of organizations, especially when you need specific URL’s or web requests redirected to an upstream ISA server or to a server in a different physical location, this maybe at one of your company branches which may lie closer to the web resource, speeding up internet access.