DNS over HTTPS (DoH) for web browsers provides online security by encrypting DNS queries, traditionally transmitted in plaintext. This encryption shields queries from interception and manipulation, mitigating risks associated with unauthorized surveillance or malicious activities. With DoH, each query is encapsulated within a secure tunnel, ensuring confidentiality and integrity as users navigate the internet. This technical advancement enhances the security posture of web browsers, safeguarding sensitive online interactions from potential threats.https://fc7ua07a-0g83-62fb-9feb-7684b14gv764.doh.threatdefense.infoblox.com/dns-query. This information can be obtained on the General page of the Create New Security Policy wizard inside the Cloud Services Portal. Copy the auto-generated FQDN, or click regenerate to generate a new FQDN. Note that DoH per Policy must be enabled in order to obtain the FQDN. You can also view the information in the Privacy & Security options section of your web browser (see image).
Example from Mozilla Firefox.
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Enabling DoH in Mozilla Firefox
To enable DoH to work with Mozilla firefox, perform the following:
Select the menu button > Settings.
In the Privacy & Security menu, scroll down to the Enable secure DNS using: section.
Select Increased Protection or Max Protection. By default, it will use the Cloudflare provider.
If this is not the case, select Cloudflare in the Choose Provider dropdown.
Increased Protection: With increased protection, you can do the following:
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Max Protection: With maximum protection, you can do the following:
Use a proivder provider of your choice
Warn if secure DNS is unavailable
Note: If secure SNS is unavailable, then web sites will not load nor function properly. If maximum protection is not possible, then it will fall back to increased protection.
Note that you can obtain the URL from your browser’s privacy and security settings. Its location in Firefox is described in the following image (Settings > Privacy & Security). Infoblox requires using increased or maximum protection settings.
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Enabling DoH in Google Chrome
Select the three-dot menu in your browser > Settings.
Select Privacy and security > Security.
Scroll down and enable Use secure DNS.
Select the With option, and from the drop-down menu choose Cloudflare (1.1.1.1).
Enabling DoH in Microsoft Edge
Select the three-dot menu in your browser > Settings.
Select Privacy, Search, and Services, and scroll down to Security.
Enable Use secure DNS.
Select Choose a service provider.
Select the Enter custom provider drop-down menu and choose Cloudflare (1.1.1.1).
Enabling DoH in Brave
Select the menu button in your browser > Settings.
Select Privacy and security > Security.
Under Advanced, enable Use secure DNS.
From the Select DNS provider drop-down menu, choose Cloudflare (1.1.1.1).