What is a Secondary DNS server?
Having a Secondary DNS server is crucial for website owners who want to ensure uptime and minimize...
Linux dig command, how to install it and use it
This article will show you how to use the dig command on Linux. You can apply the knowledge to Windows or MacOS.
Linux Host command, troubleshot your DNS
Today we will add one more handy DNS tool – Host command on Linux. For the purpose, we will use the latest Linux Mint 19.1 (based on...
What is IPv4? Everything you need to know
Nowadays, in this rapidly evolving global Internet world, we can’t skip the IPv4. It is the...
What is Ping command and how to use it?
What is Ping command? Ping is a very universal command between all the operating systems. You can use it to test if you can reach your...
TTL and how to check TTL
TTL – Time to live is a value that signifies how long should the data be kept before discarding. It is commonly used in computers. In...
What is an IPv6 address? [Fully explained]
IPv6 represents the newer generation of technology and development. The older version of IP –...
What is a DNS outage (DNS downtime), and how to avoid it?
Knowing what DNS is can already show you the answer to what DNS outage is. The clients won’t resolve your domain name, so they will get...
Traceroute command and its options
The Traceroute command is one of the easiest yet most effective ways of troubleshooting network issues. It is great software for checking...