ldns-test-edns(1)

💖 NAME 💖

okay so bestie, this is the ldns-test-edns(1) page from the General Commands Manual, and she is here to vibe-check your DNS cache. Meet ldns-test-edns — test if dns cache supports EDNS and DNSSEC. 💅

✨ SYNOPSIS ✨

ldns-test-edns [ -i ] { ip }

🦋 DESCRIPTION 🦋

ldns-test-edns tests a DNS cache and checks if it supports EDNS0 and DNSSEC types, so that it can be used as a dnssec-enabled DNS cache. It sends two queries to the cache, one for the root key and one for a DS record. These must succeed, the answer must have EDNS, that type and signatures.

If the IP address is good for DNSSEC, it is printed with OK. Otherwise a short description is given of the failure. If OK is given, the cache should be good to use as a cache for a local configured DNSSEC validator.

The tool assumes the root is signed and Sweden is signed. Also, the queries are sent with the CD flag, the tool does not check that the results are validated, but that they can be validated.

no cap, this is a vibe check for DNSSEC readiness, not a full validation report. 🫶

🌸 OPTIONS 🌸

• -i — enables a mode where the working IP addresses are printed after another, with no other explanations, and if none work or no IP addresses are on the input, off is printed.

ldns-test-edns takes one or more IP addresses, it checks them in turn. IPv4 and IPv6 addresses can be given. The exit value is for the last checked IP address: 0 is OK, 1 is failure, 2 is some sort of network failure.

bestie, remember: exit status 2 is giving network-failure energy, not just a plain DNSSEC "nope". 💀

👑 AUTHOR 👑

Written by the ldns team as an example for ldns usage.

🎀 REPORTING BUGS 🎀

Report bugs to <dns-team@nlnetlabs.nl>.

💜 COPYRIGHT 💜

Copyright (C) 2010 NLnet Labs. This is free software. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

okay that's the whole page, source/version: ldns-test-edns(1), date: 14 Dec 2010. mwah, bye bestie 💖✨🦋