SPF means Sender Policy Framework. This DNS record is in itself a system that validates legitimate emails. In addition, the SPF record identifies the mail servers authorized to send emails in your company’s name (domain). Thus, it improves the trustability of your email server while preventing domain spoofing. Learn more about the SPF record!
Why do you need a TXT record?
TXT record is a DNS record type. It contains text information created for external to the domain sources. The text can be written for people, so it would be easy to read, has complete information and logically organized, or made for computers, and has a more technical format. Read more information about the TXT record!
Linux MTR command explained
MTR command is a type of traceroute command developed by Matt Kimball in 1997. It allows both traceroute and ping in the same software. First, the name MTR was an abbreviation of Matt’s traceroute, but in 1998, his colleague Roger Wolff worked on it too and switched the name to My traceroute. Learn more information about the MTR command!
Host command explained
The Host command is a tool with a command-line interface for Domain Name System lookups. You can use it straight from the Terminal application because it is typically pre-installed on Linux-based and Unix-based OSes. Linux Host command can give you different information for the host, IP addresses, DNS records, and check name servers. Learn how to use the Host command!
What does the DNS CAA record mean?
The DNS CAA record helps domain name owners to take control over SSL certificates. So, you can determine which CA is authorized to issue them and also what kind of type of certificate.
The DNS CAA record was first defined in 2013. From September 2017, Certificate Authorities are obliged to check it before issuing any certificate. So, let’s explain a little bit more about the DNS CAA record.
What is the Traceroute command?
Traceroute is a built-in command with a command-line interface that you can practice through the Terminal application. It works as a diagnostic tool most regularly used to trace a route from the computer, sending the traceroute request to a hostname or IP address. So, let’s explain in detail the Traceroute command.
What is the Dig command?
DIG is an abbreviation of Domain Information Groper, and it is software with a command-line interface for domain probing. The Dig command can perform various DNS queries and get information about different DNS records, including A DNS record, AAAA, MX, SOA, NS, PTR, and more. Learn everything about the Dig command and how to use it!
What is a DNS MX record?
The DNS MX record is one of the most applied DNS records out there. If you don’t have one, you simply can’t be sure that you will receive any emails! This is because you need the DNS MX record to signal to the rest of the servers on the Internet, which is exactly your mail server responsible for receiving emails for the particular domain. So, let’s explain more about how important is the DNS MX record!
What does DNS mean?
Domain Name System (DNS) is the infrastructure that makes the Internet experience for humans as simple as it is in these days. Its functionality is enormous, but to start, it has in its foundation the database with all existing domain names and the IP addresses that correspond to them. Read more information about the Domain Name System!