サーバを仮想化して運用することも一般的になり、 もはや実機にOSを入れることのほうが少なくなっている、 という人も多いのではないでしょうか。 筆者の環境では、 グローバルIPアドレスを持つサーバ群を、 開発用のサーバ群と一緒に仮想化しようと ...

Have you been told that VLANs are the ultimate solution to your network woes? That they’ll magically secure your infrastructure, eliminate complexity, and solve all your traffic management headaches?

The average home now has dozens of networked devices, from computers to smart devices and streaming boxes. Each of these comes with different considerations about how they use the network, and that's ...

What they do, why they're useful, and how to get started A virtual local area network is a logical subnetwork that groups a collection of devices from different physical LANs. Large business computer ...