A root nameserver is a type of nameserver that lives in the DNS root zone. We’ll discuss more on zones shortly, but basically the root zone is the top of the DNS hierarchy and it holds the domain names and numeric IP addresses for all TLDs (reminder — those are .com, .org, etc....
DNS Definition The Domain Name System (DNS) turns domain names into IP addresses, which browsers use to load internet pages. Every device connected to the internet has its own IP address, which is used by other devices to locate the device. DNS servers make it possible for people to input...
The DNS underpins the internet we use every day. This transparent network runs in the background whenever you send an email, or load a website. DNS is often likened to the internet’s version of a telephone book. To call someone, you must first find their telephone number. To do so yo...
For example, community.atlassian.com is not a site address, it is a name that has several real IP addresses behind it. You use DNS to lookup a real address given a name. You automatically "check the DNS" every time you specify a remote host name instead of an actual IP address to co...
DNS, short for Domain Name System, is one of the most common yet misunderstood components of the web landscape. To put it simply, DNS helps direct traffic on the Internet by connecting domain names with actual web servers. Essentially, it takes a human-friendly request – a domain name ...
Reverse DNS (rDNS) is essentially a reverse IP lookup. It's a type of email authentication that is used to match a mail server IP address to a hostname.
Google Public DNSis a domain name system offered to Internet users worldwide. It functions as a recursive name server, receiving information from authoritative name servers to respond to a high volume of DNS queries. Google Public DNS is the largest public DNS service in the world and aims to...
Attackers use DNS tunneling because it leverages the DNS protocol, often allowed through firewalls and security measures due to its essential role in network operations. By embedding malicious data within DNS queries and responses, attackers can stealthily bypass traditional security defenses, maintain per...
Discover what the DNS is, what it means & how it works. We’ll also explain how it can be spoofed & poisoned, and how to prevent it infecting your device.
DNS propagation is the time it takes updates to DNS records to be in full effect across all servers on the internet.