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DNS is essentially the phone book of the Internet. Web service providers deliver information through IP addresses. The DNS resolver translates domain names to IP addresses so websites load. For example, let’s say your web address is example.com. The domain name system security extensions will contact the .com name servers on the backend. On the front end, all users have to remember is example.com instead of 192.158.3.17.
While DNS makes it easier for users to access websites, it can also leave domain names in a risky spot. Enable DNSSEC (domain name system security extensions) to avoid spoofing, cache poisoning, or having a faulty IP address. This extra layer of security strengthens authentication when it comes to the DNS server. It requires a cryptographic digital signature that ensures the DNS record is from an authoritative name server. Requiring this signature ensures your domain is protected from a man-in-the-middle attack.
DNS security extensions use public-key cryptography, which acts as a trust anchor. This process gives you a public key that verifies the digital signature. To provide you with an extra layer of protection you receive a private key along with it. The private key is paired with your DNS zone. A DNS zone hosts the records for a domain. By having a key pair to your zone, you keep your domain and the information with it safe.
A number between 0 to 65535 to identify your DS (delegation signer) record. A DS record checks the authenticity of your child zone. A child zone is a subdomain of another zone. For example, if your site is example.com, a child zone of that site would be help.example.com.
The algorithm is the way you encrypt your key and convert the code. You assign your key with an algorithm to ensure interoperability. This makes sure that the software is exchanging information properly. Sav uses the following algorithms suggested by ICANN: 5:RSA/SHA-1, 7:RSASHA1-NSEC3-SHA1, 8:RSA/SHA-256, 10:RSA/SHA-512, and 13:ECDSA Curve P-256 with SHA-256.
Certify your DNSSEC key and make sure its data is secure using the chain of trust. This DNSSEC validation is in the form of an electronic signature or DNS lookup. The domain’s digital signature ensures that the path from your computer to the nameserver is not intercepted by other operators.
Want to take your domain security one step further? Sav offers registry locks, so your domain won’t go anywhere without your say.
Learn moreThis cybersecurity option keeps your website and networks safe from DDoS attacks. Don’t compromise the performance of consumer traffic or content distribution with this level of security.
Learn moreDon’t leave your personal contact information out for the public to see. Sav provides WHOIS privacy to all eligible domains for free.
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A DNS query is a request sent from a client, typically a computer or a device, to a Domain Name System (DNS) server to resolve a domain name into its corresponding IP address. When you enter a website's URL in a browser, the DNS query helps translate that human-readable address (like www.example.com) into a numerical IP address (like 192.0.2.1) that computers use to communicate over the internet. The DNS server processes the query and returns the IP address, enabling the user's device to connect to the desired website.
DNS record types are various entries in the Domain Name System that provide specific information about a domain. Common types include A records, which map domain names to IPv4 addresses; AAAA records, for IPv6 addresses; CNAME records, which create aliases for domain names; MX records, which specify mail exchange servers for email delivery; TXT records, used for various text-based information including verification; and NS records, which indicate the authoritative name servers for a domain. Each record type serves a distinct purpose in managing and directing internet traffic effectively.
Zone Signing Keys (ZSK) and Key Signing Keys (KSK) are different in the DNS Security Extensions (DNSSEC) to enhance security and manageability. The ZSK is used to sign the individual DNS records within a zone, allowing for frequent updates and quicker key rotations without significant overhead. In contrast, the KSK is used to sign the ZSK itself, providing a higher level of trust and security for the key management hierarchy. This separation means that even if a ZSK is compromised, the KSK remains secure, ensuring the integrity of the overall DNSSEC chain of trust while allowing for more agile operations within the zone.
No, not all resource records in a DNS zone need to be the same type. A DNS zone can contain multiple types of resource records, each serving different purposes. For example, a zone might include A records for mapping domain names to IPv4 addresses, MX records for email routing, CNAME records for aliases, and TXT records for various text data. This diversity allows for flexible domain configuration and functionality, catering to different aspects of internet services associated with the domain.
The root zone is the top-level domain in the Domain Name System (DNS) hierarchy and serves as the starting point for all domain name resolutions. It contains the records for the root nameservers, which are responsible for directing queries to the appropriate top-level domain (TLD) nameservers, such as those for .com, .org, and country-specific domains like .uk or .de. The root zone is crucial for the functioning of the DNS as it establishes the foundational structure for all domain names on the internet, enabling users to access websites and services by their human-readable addresses.
