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.
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!
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.
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?
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.
I get a lot of questions about how can ISA Server be used to block dangerous applications. What is a dangerous application?
You've implemented a ISA/VPN Server to allow secure remote connections to your internal network. While you might have configured your VPN Server in a secure manner, what about your VPN clients? In this article I'll talk about important issues regarding VPN client configuration and how it impacts network security.
Windows XP Professional offers (in addition to the User Access control in Network Sharing) also the possibility to control access to file via Security:
Windows XP Professional Edition allows full User Management and Security. The permissions assigned to the Usergroups (assigned in User Management to users) are defined in the Local Security Policies:
Please be aware of a serious security issue, in case your system is connected to a local network and is also configured to use Dialup-networking for connection to the Internet.