1SDIG(1)                  PowerDNS Authoritative Server                 SDIG(1)
2
3
4

NAME

6       sdig - Perform a DNS query and show the results
7

SYNOPSIS

9       sdig IP-ADDRESS-OR-DOH-URL PORT QNAME QTYPE [OPTION]
10

DESCRIPTION

12       sdig  sends  a DNS query to IP-ADDRESS-OR-DOH-URL on port PORT and dis‐
13       plays the answer in a formatted way.  If the address starts with an  h,
14       it  is assumed to be a DoH endpoint, and PORT is ignored.  If qname and
15       qtype are both - and tcp is used, multiple lines are read  from  stdin,
16       where  each line contains a qname and a type.  If the address is stdin,
17       a DNS packet is read from stdin instead of from the network,  and  PORT
18       is  ignored.   All  input  is literal and case sensitive.  Queries need
19       option recurse to expect a resource record reply if the query target is
20       not known to be the authoritative server for that record.
21

OPTIONS

23       These options can be added to the commandline in any order.
24
25       class CLASSNUM
26              Send  the query in the numbered class (like 3 for CHAOS) instead
27              of the default 1 (for IN).
28
29       dnssec Set the DO bit to request DNSSEC information.
30
31       ednssubnet SUBNET
32              Send SUBNET in the edns-client-subnet option. If this option  is
33              not set, no edns-client-subnet option is set in the query.
34
35       hidesoadetails
36              Don't show the SOA serial in the response.
37
38       hidettl
39              Replace TTLs with [ttl] in the response.
40
41       proxy TCP? SRC DST
42              Wrap  query in PROXYv2 protocol with these parameters. The first
43              parameter accepts 0 for UDP and 1 for TCP. The second and  third
44              take IP addresses and port.
45
46       recurse
47              Set the RD bit in the question.
48
49       showflags
50              Show  the  NSEC3  flags  in  the  response  (they  are hidden by
51              default).
52
53       tcp    Use TCP instead of UDP to send the query.
54
55       xpf XPFCODE XPFVERSION XPFPROTO XPFSRC XPFDST
56              Send an XPF additional with these parameters.
57

EXAMPLES

59       Simple queries to local resolvers
60              sdig 127.0.0.1 53 example.com AAAA recurse  sdig  ::1  53  exam‐
61              ple.com A recurse
62
63       Query to a DNS-over-HTTPS server requesting dnssec and recursion
64              sdig  https://dns.example.net/dns-query 443 example.com A dnssec
65              recurse
66

AUTHOR

68       PowerDNS.COM BV
69

71       2001-2019, PowerDNS.COM BV
72
73
74
75
76                                 Feb 06, 2021                          SDIG(1)
Impressum