What is a Secondary DNS server?
Having a Secondary DNS server is crucial for website owners who want to ensure uptime and minimize...
What is Authoritative DNS server?
The authoritative DNS server is the final holder of the IP of the domain you are looking for. When you write a domain name in your browser,...
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...
TTL and how to check TTL
TTL – Time to live is a value that signifies how long should the data be kept before...
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 most used IP currently and still resists...
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...
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...
Checklist for Changing Your DNS Provider Without Downtime
Changing your DNS provider can sometimes offer significant benefits, including faster DNS resolution, improved uptime, enhanced security,...
Top 5 DNS Migration Mistakes You Must Avoid
DNS migration mistakes are more common and more costly than most people realize. Migration is one...