Question: What Does A DNS Server Do?

Domain Name Servers (DNS) are the Internet’s equivalent of a phone book.

They maintain a directory of domain names and translate them to Internet Protocol (IP) addresses.

This is necessary because, although domain names are easy for people to remember, computers or machines, access websites based on IP addresses.

How do DNS servers work?

How does DNS work?

  • Step 1: Request information.
  • Step 2: Ask the recursive DNS servers.
  • Step 3: Ask the root name servers.
  • Step 4: Ask the TLD name servers.
  • Step 5: Ask the authoritative DNS servers.
  • Step 6: Retrieve the record.
  • Step 7: Receive the answer.

What should I use for DNS server?

Public DNS Servers

Personally, I prefer OpenDNS (208.67. 220.220 and 208.67. 222.222) and Google Public DNS (8.8. 8.8 and 8.8.

What is DNS and example?

DNS – Domain Name System

(1) Short for Domain Name System (or Service or Server), an Internet service that translates domain names into IP addresses. For example, the domain name www.example.com might translate to 198.105. 232.4.

Is DNS a protocol?

(Although many people think “DNS” stands for “Domain Name Server,” it really stands for “Domain Name System.”) DNS is a protocol within the set of standards for how computers exchange data on the internet and on many private networks, known as the TCP/IP protocol suite.

What layer is DNS?

In OSI stack terms, DNS runs in parallel to HTTP in the Application Layer (layer 7). DNS is in effect an application that is invoked to help out the HTTP application, and therefore does not sit “below” HTTP in the OSI stack. DNS itself also makes use of UDP and more rarely TCP, both of which in turn use IP.

Is changing DNS safe?

Changing your current DNS settings to the OpenDNS servers is a safe, reversible, and beneficial configuration adjustment that will not harm your computer or your network. You can print out this page and write down your previous DNS settings if desired.

Can DNS affect Ping?

Q: Can DNS affect Ping? The DNS should not have any effect. Ping relies on the IP address of the target site to make its measurements. If you give it a domain name instead of an IP address, it will start with a DNS lookup to get the IP address, and then start the actual ping of the IP address.

What is the best DNS server in my area?

List Of 10 Best Public DNS Servers

  1. Google Public DNS Server. This is one of the fastest DNS servers which many users are using on their computers.
  2. OpenDNS. Alongside Google’s DNS servers, OpenDNS is one of the best cloud-based DNS servers.
  3. Norton ConnectSafe.
  4. Comodo Secure DNS.
  5. Level3.
  6. DNS Advantage.
  7. OpenNIC.
  8. Dyn.

What is default gateway IP?

Ad. In the networking world, a default gateway is an IP address that traffic gets sent to when it’s bound for a destination outside the current network. On most home and small business networks—where you have a single router and several connected devices—the router’s private IP address is the default gateway.

How do I find my DNS?

Type or paste the “ipconfig /all” command (without the quotation marks) into the Command Prompt and press “Enter” to run it and get detailed information about the network. Locate the IP address of the computer in the “IPv4 Address” field. Locate the primary DNS IP address in the “DNS Servers” field.

What ports do DNS use?

DNS is provided over intranet and internet servers with different port numbers.

  • TCP or UDP. DNS can use both transmission protocols TCP and UDP.
  • TCP Port 53. One of the used DNS port is TCP Port 53.
  • UDP Port 53. Most known and popular usage protocol of DNS is UDP 53.
  • DNSSEC Port Number.