Why does DNS use UDP?

DNS

There are various ways of sending data over IP – TCP, UDP, DCCP, SCTP, RSVP and more. We will focus our attention on the two that are...

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What is an SSL certificate and do we need it?

SSL Certificates

You have probably seen the “https” in most of the online shops like Amazon, eBay, and Alibaba. Or maybe a green lock icon just before...

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What is backup DNS?

DNS

DNS is the backbone of the internet. It connects all the users to the content they need. It is a constant exchange of information, but...

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What is Sender Policy Framework, and how to setup SPF record?

DNS

Have you ever received complaining messages from your users about emails sent to them from your email server, without your knowledge? Or...

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8 DNS tools for testing your servers

DNS • One Comment

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What is Anycast DNS and how does it work?

DNS

For many years already, the Unicast protocol has been outdated for the purpose of fast and secure DNS. It can’t manage with massive DDoS...

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What is Secondary DNS?

DNS

We have already talked what is a DNS server or name server as it is also known. It is a complicated system that translates what we write...

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DNS best practices

DNS • One Comment

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