AA blog

Network articles regarding dynamic routing, sub-netting and other networking stuff.

Using OSPF instead of overriding DNS entries for DMZ services

In order to give local users access to servers with private IPs that are located in our DMZ area, we use DNS overriding. That is a proven method with its own disadvantages. Unfortunately there are

Efficient subnetting

With the following setup I will try to illustrate a more efficient use of IP subnets. With this method assuming that you are using linux kernel based devices (servers and routers), we can avoid