4 ms·
Can some ELI5 on this? Not entirely sure what's actually happening.
by CedarHill 8y ago
Can some ELI5 on this? Not entirely sure what's actually happening.
- pas 8y agoEDNS is basically DNS2, and it has better support for handling larger messages (needed for DNSSEC and such), and EDNS itself is about signaling what features you support. https://www.dns-oarc.net/node/93 https://www.dns-oarc.net/node/93
- JdeBP 8y agoRead http://jdebp.eu./FGA/dns-edns0-and-firewalls.html http://jdebp.eu./FGA/dns-edns0-and-firewalls.html for an explanation. What is happening is that all of the stuff that I have been explaining in the "Local fix" section for a decade and a half, alongside the practice that clients had of timing out and then retrying the transaction without the extensions, is now being declared moot. If DNS lookup does not work because of this problem, it is being declared entirely the server-end's problem. Clients are no longer going to be expected to put such local fixes in place, or have timeout and retry bodges.
- kstrauser 8y agoAs someone who's been required to maintain bug-compatible software before, this fills me with great joy. Congratulations on getting to deprecate the brokenness!