Tag: DNS

In the modern era, bad actors on the internet are more sophisticated than ever. We must do everything possible to make sure that the security of your websites and email systems is at peak performance. Checks of SPF records and DKIM records are a big part of that security. If they have been set up correctly, you can be assured of safe communication through the internet.

What is DNS?

DNS stands for Domain Name System. When you access a website, you use this service to locate the server where the domain's website is. When browsing the web, you usually type in a domain name like www.google.com into your browser. This is better than trying to remember an IP address linked to a Google server.

The Domain Name System (DNS) is a powerful tool the Internet uses to know precisely where your site is located to serve it the fastest way possible. It is used to make your site load faster and more efficiently. If you want to own a successful website, properly configured DNS is necessary to ensure the satisfaction and security of your site and your users.

What is Reverse DNS?

A reverse DNS lookup is a query in which a domain name connected with an IP address is returned. However, in a forward DNS lookup, an IP address is returned when the domain name is queried. The following is an example output of reverse DNS lookup.

What is a DNS Zone?

A Domain Name System (DNS) zone is the area of the DNS namespace under the control of one particular administrator or organization. A DNS zone is a space for the administration that enables more precise control over DNS elements like authoritative nameservers. The DNS root domain is at the top of a hierarchical tree representing the domain name space.

Troubleshooting website issues is a difficult task. You may not know where to start depending on your problems.

Managing DNS can be a daunting, but rewarding task. For those managing DNS on their server, it is vital to know how to add a record with DNS Zone Editor in cPanel. This knowledge proves necessary and helps DNS management easier.

What is a Hosts File?

The hosts file is a local plain text file that maps servers or hostnames to IP addresses. This file has been in use since the time of ARPANET. It was the original method to resolve hostnames to a specific IP address. The hosts file is usually the first process in the domain name resolution procedure. Here is an example of a hosts file entry.

One of the most powerful tools available to anyone working on their site during a migration is their computer's "hosts" file. The hosts file is used to map domain names to IP addresses, and can be used as an alternative to DNS. It also allows you to specify the IP address to which a website resolves on your computer, regardless of what may be published in the site's DNS zone file.

What is nmcli?

nmcli stands for Network Management Command-Line Interface, and is a tool for managing the NetworkManager application and reporting on the status of the network. It can be utilized as a substitution for nm-applet or other similar graphical clients. nmcli is used to display, create, delete, edit, activate, deactivate network connections, and control and display network device status.