Table 1. This table illustrates subnet masks. The number after the “/” in the CIDR notation indicates the total number of IP addresses available. Click here to see an enlarged diagram. Understanding ...

Step-by-step instructions to walk you through network-administration projects that can hone skills in IP addressing, Wi-Fi monitoring, documenting asset configuration, setting up DNS, and more. A ...

IP addresses are like opinions… everyone has one. But not every IP address is created equal. Some IP addresses are dynamic, which means they automatically change, based on router settings. Also: ...

We just saw that the mask determines where the boundary between the network and host portions of the IP address lies. This boundary is important: If it is set too far to the right, there are lots of ...

Just ask any economist: When a commodity is in short supply, several things happen. The price goes up, rationing begins, and people start scrambling for substitutes. Globally unique Internet addresses ...

The key to being a good network administrator is understanding how your network is set up and the IP address scheme. IP Network Calculator is a good assistant. IP Network Calculator is a free Android ...

Rather than layering security onto networks, the networks themselves and carefully managed authorization policies can hinder attacks, but at an administrative cost. Why is it that over 90% of ...

Many a time IT admin needs to set up multiple IP addresses to the same network adapter. Situations such as hosting multiple SSL sites can speed up traffic exchanges, which can bypass the gateway in ...