Delv
Usage
delv [@server] {q-opt} {d-opt} [domain] [q-type] [q-class]
Flags
Usage: delv [@server] {q-opt} {d-opt} [domain] [q-type] [q-class]
Where: domain is in the Domain Name System
q-class is one of (in,hs,ch,...) [default: in]
q-type is one of (a,any,mx,ns,soa,hinfo,axfr,txt,...) [default:a]
q-opt is one of:
-x dot-notation (shortcut for reverse lookups)
-d level (set debugging level)
-a anchor-file (specify root and dlv trust anchors)
-b address[#port] (bind to source address/port)
-p port (specify port number)
-q name (specify query name)
-t type (specify query type)
-c class (option included for compatibility;
only IN is supported)
-4 (use IPv4 query transport only)
-6 (use IPv6 query transport only)
-i (disable DNSSEC validation)
-m (enable memory usage debugging)
d-opt is of the form +keyword[=value], where keyword is:
+[no]all (Set or clear all display flags)
+[no]class (Control display of class)
+[no]crypto (Control display of cryptographic
fields in records)
+[no]multiline (Print records in an expanded format)
+[no]comments (Control display of comment lines)
+[no]rrcomments (Control display of per-record comments)
+[no]unknownformat (Print RDATA in RFC 3597 "unknown" format)
+[no]short (Short form answer)
+[no]split=## (Split hex/base64 fields into chunks)
+[no]tcp (TCP mode)
+[no]ttl (Control display of ttls in records)
+[no]trust (Control display of trust level)
+[no]rtrace (Trace resolver fetches)
+[no]mtrace (Trace messages received)
+[no]vtrace (Trace validation process)
+[no]dlv (DNSSEC lookaside validation anchor)
+[no]root (DNSSEC validation trust anchor)
+[no]dnssec (Display DNSSEC records)
-h (print help and exit)
-v (print version and exit)
Examples
DNSSEC enabled
delv @1.1.1.1 cloudflare.com
; fully validated
cloudflare.com. 217 IN A 104.17.175.85
cloudflare.com. 217 IN A 104.17.176.85
cloudflare.com. 217 IN RRSIG A 13 2 300 20200314153130 20200312133130 34505 cloudflare.com. obmtyacO2462qIC97UGdcd8EYc7/Bl2kqbG281oZO1yVWKV//jWav5ET 1p9IjL6anF8Kq4Puvf9DSQ1SjvaRGw==
DNSSEC not enabled
delv @1.1.1.1 google.com
; unsigned answer
google.com. 3200171710 IN A 172.217.17.46
URL List