DNS Server Caching

In any internet enabled network, name resolution and in particular DNS requests represent a significant amount of traffic.    One of the important ways that DNS reduce this traffic is by caching or saving all the responses that they receive.  This is an important function which ensures the resolution process is more efficient than if […]

Understanding FTP and File Transfers

There are some protocols and applications that it’s very difficult to manage without and FTP surely comes into this category.  The File Transfer Protocol is more normally thought of as an application than a protocol but it’s something that most of us couldn’t do without.    It’s correct definition is probably the simplest – a […]