This article is part three in a series dedicated to the DNS Management; DNS Record Types Explained. dns.dnsmadeeasy.com. The most common types of DNS records used in most domains and their most common uses are described below. N    The priority number is used to indicate which of the servers listed as MX records it should attempt to use first. The screenshot above is a sample of A Record listings of different types. RFC 973 replaced these records with the MX record. DNS records (aka zone files) are instructions that live in authoritative DNS servers and provide information about a domain including what IP address is associated with that domain and how to handle requests for that domain. We most commonly see TXT records used to hold SPF data and verify domain ownership. X    At the root server level, it's important that there is an authoritative name server configured to respond to queries against a particular domain name. Terms of Use - Most web hosts have optimizations in place to keep your site loading quickly. Updated on June 1, 2020. What you learn in this section will help you in managing your domain and connecting the domain to a website. These records can be used for a number of purposes, but a good example can been seen here: techopedia.com descriptive text "google-site-verification=3gxUc6RH0WccwA6LNaDwENjhKlfUydMOVMtmCIOJBnE" techopedia.com descriptive text "google-site-verification=C_-veU9lL8A7lVTeFpxNDiuW4dwjhcpittNkfCa83bA". Another address (A) record is setup for www.nixcp.com subdomain, pointing to the same address. A, AAAA, CNAME, and TXT records are but a few of the types of records that can be used by your domains, but what do these do? read time : 3 min. A Record An A record or address record. A fully qualified domain name (FQDN) includes the zone name, whereas a relative name does not. 10 types of common DNS records— including A, AAAA, CNAME, MX and NS. Record Type: Explanation: How Domain Owners Typically Use It: A Record: Assigns an address for your domain to a specific IP (www to 12.345.678.90). Build and host multiple sites on our world-class network. *Promotion ends on Dec 04, 2020. We recommend you read the first two entries in this series, Registrars and Nameservers and Zones, Record Types, and Record Composition before continuing with this article. B    A Complete Guide To DNS Management : DNS Records Explained. We need the DNS system and its records to keep the internet functioning and connected. Mail Exchanger (MX) records are used to help route email according to the domain owners’ preference. Sign up for a personalized tour to see how Pressable and our state-of-the-art platform can help your WordPress websites perform their best. The most commonly used DNS record types are: Here we see the domain name for techopedia.com's primary name server is ns10.dnsmadeeasy.com and that the human contact is [email protected] (note the @ sign is never shown in an SOA entry but is instead implied). Each DNS zone (or publicly announced configuration of DNS settings) must contain some indication of how the delegated DNS entries are run. Reinforcement Learning Vs. Are These Autonomous Vehicles Ready for Our World? 5 Common Myths About Virtual Reality, Busted! I    Optimizing Legacy Enterprise Software Modernization, How Remote Work Impacts DevOps and Development Trends, Machine Learning and the Cloud: A Complementary Partnership, Virtual Training: Paving Advanced Education's Future, IIoT vs IoT: The Bigger Risks of the Industrial Internet of Things, MDM Services: How Your Small Business Can Thrive Without an IT Team. Zone files can include more than 44 different record types, but should always begin with an SOA record (or Start of Authority). As IPv6 becomes more prevalent, the AAAA record (or "quad-A") will become more popular. H    : To control which specific servers host a particular function associated with their online presence (website, email, etc). Privacy Policy Finally, we’ll give you a sneak peak into the amazing things that can be achieved by the next generation of DNS servers. You’ll want to use an A Record for your DNS entry if you have an IP address that the domain/subdomain should point to or if you want to establish a domain/subdomain to be used as the place to point a CNAME. Straight From the Programming Experts: What Functional Programming Language Is Best to Learn Now? The domain name system (DNS) is integral to today's internet, and on the surface, it seems extremely complex. Tech's On-Going Obsession With Virtual Reality. This field is for validation purposes and should be left unchanged. They will usually make up more than one mail server for reliability, but this is not always the case, and may be a breach of Request for Comments (RFCs). We won’t go into the details of properly formed SPF records and what their different pieces mean, but these will commonly be supplied to you by the mail provider you are working with. : To control which specific servers host a particular function associated with their online presence (website, email, etc). DNS is primarily an internet service that translates alphabets (domain name) into numbers (IP address), but not limited to this single function. SRV Records. T    An example held on a WHOIS record might look like this, where ns1 returns the IP address 1.2.3.4 and so on. Here we'll look at the 12 most common DNS records. More of your questions answered by our Experts, African Network Information Center (AfriNIC), American Registry for Internet Numbers (ARIN), Latin America and Caribbean Network Information Center (LACNIC), NCC Réseaux IP Européens Network Coordination Center (RIPE). Within the SOA, it's important to announce how other machines should react when communicating with the authoritative name servers for a DNS zone. F    July 12, 2019. Below … Different Types of DNS Records With Syntax and Examples. Usually, two A records are set up that will successfully point to both a bare and wildcard version of the domain (i.e. There is currently no option to add this type of record in your Domains Dashboard. A Records are only able to take an IP address as their value and you can point the same domain/subdomain to multiple IP addresses by adding another A Record with the same name but with a different IP address for the value. It's little wonder that DNS confuses so many people. FatCow If you are using assistive technology and are unable to read any part of the fatcow website, or otherwise have difficulties using the fatcow website, please call 800-551-1630 and our customer service team will assist you. V    In Azure DNS, records are specified by using relative names. This might be something like [email protected]. It is possible for a domain to consist of a single zone. J    Now we will see each one with examples. There are dozens of types of DNS records and zones. Such an example might be: techopedia.com has SOA record ns10.dnsmadeeasy.com. S    The Start of Authority (SOA) record can show the primary name server for the domain name, the serial number (this should be when the last revision was made to the DNS configuration for the zone if it's shown in the correctly specified date format), and other pertinent information relating to how the zone is run by the administrator. You can find out more about why you might want to do this in the CNAME portion of this article. A Records are the most basic type of DNS record and are used to point a domain or subdomain to an IP address. The domain name system (DNS) is integral to today's internet, and on the surface, it seems extremely complex. The above DNS records are mostly used in all DNS Configurations. To setup one of these records, use the DNSSEC Sign Zone function. An example PTR (or pointer) record delegated by an RIR to an authoritative name server that is ready to answer reverse DNS queries might be as follows. Do you know how fast your site is? Find the right hosting solution for your e-commerce site. MX records 6. In this case, "mail," "www" or "ntp" would be the defined A records. A Sender Policy Framework (SPF) record might look like this for that reason: techopedia.com has SPF record "v=spf1 mx ptr ip4:184.72.216.57 ip4:66.51.97.134 a:list.janalta.com a:webmail1.janalta.coma:list.technewsletters.com include:_spf.google.com ~all". Before we dive into various types of DNS records, it is important to understand the distinction and concept DNS Zones and DNS Records. TXT records 8. Z, Copyright © 2020 Techopedia Inc. - Less commonly used record types: AFSDB (AFS Data Base location) ATMA (Asynchronous Transfer Mode address) We’re Surrounded By Spying Machines: What Can We Do About It? PTR records 7. We implement…, There’s no question about it when it comes to site security: you need to keep your data and your customers’ information safe. Learn how to manage and recognize different types of DNS Records. A number of the common ones incorporate records, CAA, CNAMES, MX records, and TXT records. Q    Although it can be rather easy to understand the record types themselves, knowing about nameservers, registrars, and how a specific set of DNS records gets chosen and used is a little more difficult to navigate, but is just as essential to know. If you need to verify or provide an SPF record for a specific subdomain, then you will need to use the appropriate hostname in place of the @ symbol. Finally, you can see the use of the @ symbol to indicate that the www hostname should point to the naked domain and use its value, which when you see the A Record sample image above, points to 198.101.164.57. With respect to DNS, a zone denotes an organizational area. In this article, we’re discussing a few of the more commonly used record types and when you might use them. A AAAA CNAME MX PTR NS SOA SRV TXT NAPTR. Let’s build a custom plan that meets your unique needs. Please contact us for assistance. Configured using a simple hierarchy, an administrator can define which mail server should receive mail first and so on. This means that AAAA records are notated using eight groups of 16-bit values, such as: fe80:226:18ff:fed3::cc2a. But we could also setup another A record called blog, this ca… A Records are the most basic type of DNS record and are used to point a domain or subdomain to an IP address. Also shown inside the SOA record is an email address of whom to contact, or the responsible person (RP), in the event of a misconfiguration or some other issue relating to the DNS zone. Here, cname.techopedia.com will also return the IP address 1.2.3.4 as it points at hostname.techopedia.com. The DNS can quickly be updated with some propagation time , which is the length of time needed to update records across the Internet. If this server is unable to handle the mail request, the next lowest priority number is used, which in this case would be 10. With a firm grounding in Linux, and a love for writing, he is the first to say that he finds both the technical and the business aspects of the Internet fascinating. DNS records (NS, A, MX, CNAME, SPF) explained. The screenshot above gives an example of how a TXT value would be formed for both an SPF entry or an ownership verification for the naked/primary host/name using the @ symbol. In order to associate a domain name with an IP address, it's usually necessary to use A records. The most common DNS record used, the A record simply points a domain to an IPv4 address, such as 11.22.33.44. The MX record with the lower priority number (“0” in this case) is the first to be tried for email delivery. The MX record itself specifies which server(s) to attempt to use to deliver mail to when this type of request is made to the domain. The other record types are more straightforward. R    A records Address (A) records are used to map hostnames to numeric IP address. However, if you get to know some of the most common DNS records – and how they're used – it's easy to get a sense of how this technology works. Big Data and 5G: Where Does This Intersection Lead? Save 50% off your first month with Promo Code FRIDAY at checkout. Google most likely assumes that only the owner of the domain name will have access to the name servers responsible for running the domain name and therefore, only they will be able to make DNS changes to the domain name. SRV (Service) records are custom DNS records used to establish connections between a service and a hostname. Assigning a value to an A record is as simple as providing your DNS management panel with an IP address to where the domain or subdomain should point and a TTL. Because security is so important on the internet, including when it comes to the pervasive DNS, DNSSEC was created to bolster the domain name system. DNS record contains two important fields, “Name” and “Data”.Both fields are being used for lookup and this record format applies to all DNS records in all zones. Chris Binnie has been online for almost two decades. Types of DNS Records. Common DNS records are A, CNAME, MX, NS, TTL, TXT and URL. M    Ideally, this series of articles will help you understand the general how a website’s DNS works for a domain from the time it is typed into the browser to the time your name servers handle the request. You can see that the wildcard ( * ), @ symbol, and named hostname entries were used. But oddly enough, brute force attacks remain one of the largest and…. Here, the “ A ” stands for “ address,” which indicates the domain’s IP address. It's little wonder that DNS confuses so many people. The “ A Record ” can hold only the IPv4 address, whereas the “ AAAA record ” can hold the IPv6 address. #    G    CNAME records 4. This is all done by DNS (domain name system). A Record listing in the GoDaddy DNS Management Panel. Additionally, there are dozens of types of DNS records and zones. In the screenshot above, you can see immediately that one of the important differences from A Records is that the value portion of the record is required to be an existing subdomain/domain. What's the difference between a host name, a domain name and a fully qualified domain name (FDQN)? DNS stands for domain name system. Each one handles its own type of information to help streamline the DNS processing for maximum speed. From the section below we're planning to pay for a number of these list types in detail. These can be in the form of many different host names and subdomains. Separate from the root servers running the delegated forward DNS for domain names, the reverse DNS is configured by five regional internet registries (RIRs), each of which is responsible for a certain geographic region. Here we see a list of machines allowed to send email and some IP addresses as well. Malicious VPN Apps: How to Protect Your Data. Each domain name should have name server records set up in order to function; using too few name servers may breach RFCs. NS Record: Identifies the name servers for a particular zone; SOA: Start of Authority records; TXT: Allows any text to be inserted into a DNS record; There are many more record types, and without these records, everything would be accessed by an IP address. The DNSKEY record is a cryptography method for declaring configuration for security and may look like this: ripe.net has DNSKEY record 257 3 5 AwEAAXf2xwi4s5Q1WHpQVy/kZGyY4BMyg8eJYbROOv3YyH1U8fDwmv6k BVxWZntYtYUOU0rk+Y7vZCvSN1AcYy0/ZjL7cNlkc3Ordl2DialFHPI6 UbSQkIp3l/5fSWw5xnbnZ8KA7g3E6fkADNIEarMI4ARCWlouk8GpQHt1 1wNW1c65SWB8i958WZJ6LI0pOTNK+BIx8u98b+EVr7C08dPpr9V6Eu/7 3uiPsUqCyRqMLotRFBwK8KgvF9KO1c9MXjtmJxDT067oJoNBIK+gvSO9 QcGaRxuGEEFWvCbaTvgbK4E0OoIXRjZriJj8LXXLBEJen6N0iUzj8nqy XSCm5sNxrRk=. In the first part of this series, I have introduced you with different types of Domain Name System (DNS) records and explained the terms. Are Insecure Downloads Infiltrating Your Chrome Browser? You can see that the “journal” hostname points to my blog.iamrobertv.com A Record, which points to 198.101.164.57. E    Webmasters often have to delve into the world of DNS records to solve everyday problems. Want to learn more? Managing your own DNS can be a tricky endeavor, especially if you haven’t ever considered what this means or ever even seen a DNS record. The “ A Records ” are the most fundamental type of DNS records used to point a domain name or sub-domain to an IP address. The number of MX entries you will need to create depends largely on the mail provider and how they expect the load on these email servers to be handled. Techopedia Terms:    When an application needs to find a specific service location, it will search for a related SRV record. A DNS Zone file is a plain text file stored on a DNS server which contains all the records for every domain within a given zone. Some email providers have only one MX record and some have well over two. This eliminates the need for explicitly declaring an IP address and means that the IP address can be changed once rather than twice if a CNAME record simply points at an already established host name, as shown in the following example: hostname.techopedia.com 1.2.3.4 cname.techopedia.com hostname.techopedia.com. 6 Examples of Big Data Fighting the Pandemic, The Data Science Debate Between R and Python, Online Learning: 5 Helpful Big Data Courses, Behavioral Economics: How Apple Dominates In The Big Data Age, Top 5 Online Data Science Courses from the Biggest Names in Tech, Privacy Issues in the New Big Data Economy, Considering a VPN? In my last blog post I explained how DNS and domain names work. Approx. O    A and AAAA Records. DNS Records Explained DNS (Domain Name System) entries take a human-friendly name, such as store.example.com, and translate it to an IP address. At Pressable, for example, we do our part by fine-tuning the things you can’t see. L    Additional A recordscan also be created for subdom… Google's site verification system has obviously needed a way to identify that a particular domain name or host name belongs to an administrator during a configuration process request. P    Assigning a value to an A record is as simple as providing your DNS management panel with an IP address to where the domain or subdomain should point and a TTL. The rule of thumb for TXT records is that they require an attribute name, followed by an equals sign, followed by a value for the attribute. Deep Reinforcement Learning: What’s the Difference? Each handles its kind of advice that will help enhance the DNS processing for optimum rate. It’s a concept that’s simple from a high-level overview, but when you get down into the trenches, it becomes very complex. 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