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What is a DNS Zone?
A DNS Zone is part of a group of components that make up DNS. These objects are managed by an administrator or organization in a granular manner. DNS zones can contain varied information about a domain and subdomains. Multiple zones can also exist on the same server. DNS information is stored within a text file called a DNS zone file.
Continue reading “How to Decode DNS Zone Types”
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What is a Dependency?
A dependency is defined as a file, component, or software package that a program needs to work correctly. Almost every software package we install depends on another piece of code or software to work as expected. Because the overall theme of Linux has always been to have a program do one specific thing, and do it well, many software titles utilize other pieces of software to run correctly.
Let’s review what dependencies are and why they are required. We all have, at one point or another, most certainly seen a message from our system when we were installing software regarding “missing dependencies.” This error denotes that a required part of the software package is outdated, unavailable or missing. Let’s review how to address those issues when we come across them on Ubuntu.
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What is DNS?
The Domain Name Service (or DNS) is the key to the presence of your server on the internet. You are probably aware your domain has an “IP” address, which stands for Internet Protocol; that number is your domain’s literal web address on the internet. A typical IP address is a series of four numbers called octets that are identified like so: 10.10.10.10. You can think of your IP address as being similar to a postal address. The IP address is the exact location where your domain lives. I usually explain it like this;
Continue reading “DNS: An Overview”
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One of the many challenges that we may face while attempting to make modifications to a zone file, is knowing what the different records are used for. This article highlight several of the commonly used records in an attempt to help demystify them.
Continue reading “DNS Record Types”
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If your computer has trouble reaching a certain website or server this may be due to a corrupt local DNS cache. This guide will show you how to clear your local DNS cache (“flush” it) for several operating systems.
Continue reading “How To Flush Your Local DNS Cache”