An SPF (Sender Policy Framework) record or SPF TXT record is a record that is part of your domain’s DNS, similar to a DMARC record. It contains a list of all the IP addresses that are allowed to send an email on behalf of your domain. Learn more information about the SPF record!
The TXT record is a type of Domain Name System (DNS) record that contains text information for sources outside of your domain. You add these records to your domain settings.
You can use TXT records for various purposes. For example, you can use them to verify domain ownership and to ensure email security. Learn more information about the TXT record!
The Linux MTR command is a combination of ping and traceroute commands. It is a network diagnostic tool that continuously sends packets showing ping time for each hop. It also displays network problems of the entire route taken by the network packets. Learn more about the MTR command!
The Host command in the Linux system is used for DNS (Domain Name System) lookup operations. In simple words, this command is used to find the IP address of a particular domain name. Another case the host command can come in hand is when you want to find out the domain name of a particular IP address. Let’s explain a little bit more about the Host command!
The DNS CAA (Certification Authority Authorization) record is an Internet security policy mechanism. It lets domain name holders to indicate to certificate authorities if they are authorized to issue digital certificates for a particular domain name. Read more about the DNS CAA record!
Traceroute command is a network diagnostic tool. It is used to track in real-time the pathway taken by a packet on an IP network from source to target, reporting the IP addresses of all the routers it pinged in between. Traceroute command also describes the time taken for each hop the packet makes during its route to the target. Read everything you need to know about the Traceroute command!
The Dig command is a network administration command-line tool for querying the Domain Name System (DNS). The Dig command is helpful for network troubleshooting and for educational purposes. It can operate based on command-line option and flag arguments and in batch mode by reading requests from an operating system file. Find out everything you need to know about the Dig command!
MX record is also known as mail exchanger record. It specifies the mail server responsible for receiving email messages on behalf of a domain name. It is a resource record in the Domain Name System (DNS). It is possible to configure different MX records, typically pointing to a collection of mail servers for load balancing and redundancy. Read more about why the MX record is important.
The Domain Name System, or DNS for short, is the Internet’s system for mapping alphabetic names to numeric Internet Protocol (IP) addresses. It is like a phone book that maps a person’s name to a phone number. Every time when a Web address (URL) is typed into a browser, a DNS query is made to learn an IP address of a Web server associated with that name.