> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://helpdesk.gbnetwork.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# What is DNS ?

| What is DNS ?
---
**DNS**, which stands for *domain name system*, controls your domain name's website and email settings.
When visitors go to your domain name, its DNS settings control which company's server it reaches out to.

For example, if you use **GB Network's** DNS settings, visitors will reach **GB Network's** servers when using your domain name.
If you change those settings to user another company's servers, visitors will reach them instead of us when visiting your domain.

**DNS** can be confusing. It's made up of many elements that control different aspects of your domain name. Here's a quick explanation of each one:

1. **Nameserver :**
Nameservers "point" your domain name to the company that controls its DNS settings. Usually, this will be the company where you registered the domain name.

2. **Zone File :**
Zone Files are simply the files that store all of your domain's DNS settings.

3. **A Record :**
A Records point your domain name to an individual server using an IP address. An example IP address is 123.4.67.5. Every domain name has a primary A Record called "@," which controls what your domain name does when some visits it directly.

4. **CNAME :**
CNAMEs point your subdomains to another server using a server name, like server1.gbnetwork.com.
Most domain names have many CNAMEs. Unlike A Records, CNAMEs cannot use IP addresses.

5. **MX Records :**
MX Records point your domain name's email to its email provider.