> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.alertbot.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).

# DNS IP's Used by AlertBot Test Stations

AlertBot uses private caching only DNS resolvers. The DNS servers are not accessible to the general public. This is a safety measure to help protect against various attacks on DNS. Please review the following article provided by the U.S. NSA describing DNS operation, configuration and risks titled Defending Your DNS Infrastructure.

**Related Link:**
* [Defending Your DNS Infrastructure](https://www.nsa.gov/portals/75/documents/what-we-do/cybersecurity/professional-resources/Defending%20Your%20DNS%20Infrastructure_bannerless%20.pdf?ver=2019-06-27-113827-157#:~:text=Properly%20configuring%20DNS%20caching%20servers%20can%20help%20prevent,in%20the%20hierarchy%2C%20like%20the%20root%20and.com%20servers)