NAME¶
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 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.
OPTIONS¶
-i option 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.
AUTHOR¶
Written by the ldns team as an example for ldns usage.
REPORTING BUGS¶
Report bugs to <ldns-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.