NAME¶

dq - DNS/DNSCurve query tool

SYNOPSIS¶

dq [ options ] type fqdn [ host ]

dq -a

[ options ] type fqdn host

DESCRIPTION¶

dq is commandline tool derived from dnsq / dnsqr (https://cr.yp.to/djbdns/debugging.html)

dq asks for records of type type under the domain name fqdn

dq -a

sends a non-recursive DNS/DNSCurve query to DNS/DNSCurve server host for records of type type under the domain name fqdn

OPTIONS¶

-v

print extra information

-r

send recursive query (default)

-a

send authoritative query

-u

use UDP (default)

-t

use TCP

-s

send DNSCurve query in streamlined format (default), ignored for regular DNS queries

-S suffix

send DNSCurve query in TXT format using suffix suffix, ignored for regular DNS queries

-T timeout

give up on the DNS/DNSCurve query attempt after timeout seconds <1-60> (default 60)

-p port

send query to port port (default 53)

-k key

send DNSCurve query and use servers public-key key

type

DNS query type (A, NS, MX, ANY, PTR, TXT, SOA, SRV, AAAA, AXFR, CNAME or numeric type)

fqdn

fully qualified domain name

host

DNS server (hostname or IP address)

ENVIRONMENT¶

DNSCACHEIP

use IP address $DNSCACHEIP instead of 'nameserver' lines from /etc/resolv.conf

LOCALDOMAIN

use space separated names from $LOCALDOMAIN instead of 'search' line from /etc/resolv.conf

DNSREWRITEFILE

use $DNSREWRITEFILE file instead of /etc/dnsrewrite

NOTES¶

dq rewrites IP address to *.in-addr.arpa or *.ip6.arpa for PTR queries e.g.:

127.0.0.1 -> 1.0.0.127.in-addr.arpa
::1 -> 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa

RECURSIVE EXAMPLES¶

dq any dnscurve.cz
dq any dnscurve.cz 8.8.8.8
env DNSCACHEIP=8.8.8.8 dq any dnscurve.cz
dq ptr 1.0.0.127.in-addr.arpa
dq ptr 127.0.0.1
dq ptr ::1
dq ptr 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa

AUTHORITATIVE EXAMPLES¶

dq -a any dnscurve.cz uz5mj60yr9tnudkkpcglw1y0w6dlh78j1l4gk4z7t8bsf1u4d48wlq.ns.dnscurve.cz
dq -a -S cz any dnscurve.cz uz5mj60yr9tnudkkpcglw1y0w6dlh78j1l4gk4z7t8bsf1u4d48wlq.ns.dnscurve.cz
dq -a -k uz5mj60yr9tnudkkpcglw1y0w6dlh78j1l4gk4z7t8bsf1u4d48wlq any dnscurve.cz 2a02:2b88:2:1::127d:1

SEE ALSO¶

dnsq(1), dnsqr(1), dqcache(8)

https://mojzis.com/software/dq
https://dnscurve.org/
https://cr.yp.to/djbdns/debugging.html