DNS Settings

February 10, 2023

DNS is essentially a phonebook for the Internet. It helps map human-readable domain names (such as “google.com”) to IP addresses (such as “172.217.31.174”). This mapping allows you to type a domain name into your web browser, and have it translated into the IP address of a server that serves the website you want to visit.

Each device connected to the Internet, such as a computer or smartphone, has a DNS resolver that helps it look up the IP address for a domain name. By default, your device is likely using the DNS resolver provided by your Internet Service Provider (ISP), but you can also change this to use a different DNS resolver if you want to.

When it comes to setting up DNS, there are a few things to keep in mind:

DNS Records: These are the mappings between domain names and IP addresses. There are several types of DNS records, each with a different purpose. For example, the “A” record maps a domain name to an IP address, while the “MX” record specifies the mail servers for a domain.
DNS Servers: These are the servers that store the DNS records and respond to requests from clients (such as your computer) to look up the IP address for a domain name.
Primary and Secondary DNS Servers: A domain typically has one primary DNS server and one or more secondary DNS servers. The primary server is authoritative for the domain and is responsible for keeping the DNS records up-to-date. The secondary servers are backups that can be used in case the primary server goes down.
Changing DNS Settings: To change your device’s DNS settings, you’ll need to access its network settings. The process for doing this can vary depending on the operating system you’re using. Once you’re in the network settings, you can change the DNS resolver your device is using to a different one if you want to.

DNS LOOKUP SITES:

https://centralops.net/co/

https://mxtoolbox.com/

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