Spurred by a recent Slashdot posting, I’ve produced some graphs showing the relationships between the RFCs which define the DNS protocol.
The graphs (which are in SVG format) split the DNS-related RFCs into three groups (although some RFCs end up in more than one group):
The point of these graphs is not to show which RFCs refer to other RFCs, but to show which RFCs update or obsolete other RFCs. Hence the graphs give an “at a glance” overview of which RFCs define the DNS protocol as it is now.
Boxes in grey indicate obsoleted RFCs, and square boxes indicate Informational or Best Current Practice documents.Â Hovering over a box should tell you the title of the RFC, and clicking on a box will take you to the RFC itself.
The picture below is just a low resolution sample – click on the picture or on the links above to access the scalable SVG versions.
Please let me know if you believe I’ve missed anything, or miscategorised any document.