118 guides
Guides
Answer-first how-tos for the questions behind AdminKit's tools: why an IP gets blacklisted, what CGNAT means, how to read an SPF record, and how to check whether a device protocol is exposed — grouped into the six clusters used across the site.
Updated
Frequently asked questions
Who writes these guides?
AdminKit team, Netbase JSC. Every guide cites at least one primary source (an RFC, vendor documentation or an official advisory) and shows an author and update date.
Are the guides free to read?
Yes — every guide is free, with no account or sign-up required.
How are guides grouped on this page?
Into the same six clusters as tools and glossary (DNS, email authentication, IP & network, machine protocols, AI agents & MCP, security basics). Each section below lists the 3 most recently updated guides in that cluster, with a link to the complete list on that cluster's hub page.