最終更新:2024-03-01 (金) 12:51:32 (53d)
dig
Top / dig
domain information groper
ネームサーバ（DNS）へドメイン情報?を問い合わせるためのツール
使い方
$ dig [@使用するDNSサーバ} 調べたいホスト名 タイプ
$ dig google.com MX $ dig @8.8.8.8 example.com A
Ubuntu/パッケージ
チェック
help
Usage: dig [@global-server] [domain] [q-type] [q-class] {q-opt} {global-d-opt} host [@local-server] {local-d-opt} [ host [@local-server] {local-d-opt} [...]] 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] (Use ixfr=version for type ixfr) q-opt is one of: -4 (use IPv4 query transport only) -6 (use IPv6 query transport only) -b address[#port] (bind to source address/port) -c class (specify query class) -f filename (batch mode) -k keyfile (specify tsig key file) -m (enable memory usage debugging) -p port (specify port number) -q name (specify query name) -r (do not read ~/.digrc) -t type (specify query type) -u (display times in usec instead of msec) -x dot-notation (shortcut for reverse lookups) -y [hmac:]name:key (specify named base64 tsig key) d-opt is of the form +keyword[=value], where keyword is: +[no]aaflag (Set AA flag in query (+[no]aaflag)) +[no]aaonly (Set AA flag in query (+[no]aaflag)) +[no]additional (Control display of additional section) +[no]adflag (Set AD flag in query (default on)) +[no]all (Set or clear all display flags) +[no]answer (Control display of answer section) +[no]authority (Control display of authority section) +[no]badcookie (Retry BADCOOKIE responses) +[no]besteffort (Try to parse even illegal messages) +bufsize[=###] (Set EDNS0 Max UDP packet size) +[no]cdflag (Set checking disabled flag in query) +[no]class (Control display of class in records) +[no]cmd (Control display of command line - global option) +[no]comments (Control display of packet header and section name comments) +[no]cookie (Add a COOKIE option to the request) +[no]crypto (Control display of cryptographic fields in records) +[no]defname (Use search list (+[no]search)) +[no]dns64prefix (Get the DNS64 prefixes from ipv4only.arpa) +[no]dnssec (Request DNSSEC records) +domain=### (Set default domainname) +[no]edns[=###] (Set EDNS version) [0] +ednsflags=### (Set EDNS flag bits) +[no]ednsnegotiation (Set EDNS version negotiation) +ednsopt=###[:value] (Send specified EDNS option) +noednsopt (Clear list of +ednsopt options) +[no]expandaaaa (Expand AAAA records) +[no]expire (Request time to expire) +[no]fail (Don't try next server on SERVFAIL) +[no]header-only (Send query without a question section) +[no]https[=###] (DNS-over-HTTPS mode) [/] +[no]https-get (Use GET instead of default POST method while using HTTPS) +[no]http-plain[=###] (DNS over plain HTTP mode) [/] +[no]http-plain-get (Use GET instead of default POST method while using plain HTTP) +[no]identify (ID responders in short answers) +[no]idnin (Parse IDN names [default=on on tty]) +[no]idnout (Convert IDN response [default=on on tty]) +[no]ignore (Don't revert to TCP for TC responses.) +[no]keepalive (Request EDNS TCP keepalive) +[no]keepopen (Keep the TCP socket open between queries) +[no]multiline (Print records in an expanded format) +ndots=### (Set search NDOTS value) +[no]nsid (Request Name Server ID) +[no]nssearch (Search all authoritative nameservers) +[no]onesoa (AXFR prints only one soa record) +[no]opcode=### (Set the opcode of the request) +padding=### (Set padding block size [0]) +qid=### (Specify the query ID to use when sending queries) +[no]qr (Print question before sending) +[no]question (Control display of question section) +[no]raflag (Set RA flag in query (+[no]raflag)) +[no]rdflag (Recursive mode (+[no]recurse)) +[no]recurse (Recursive mode (+[no]rdflag)) +retry=### (Set number of UDP retries) [2] +[no]rrcomments (Control display of per-record comments) +[no]search (Set whether to use searchlist) +[no]short (Display nothing except short form of answers - global option) +[no]showbadcookie (Show BADCOOKIE message) +[no]showsearch (Search with intermediate results) +[no]split=## (Split hex/base64 fields into chunks) +[no]stats (Control display of statistics) +subnet=addr (Set edns-client-subnet option) +[no]tcflag (Set TC flag in query (+[no]tcflag)) +[no]tcp (TCP mode (+[no]vc)) +timeout=### (Set query timeout) [5] +[no]tls (DNS-over-TLS mode) +[no]tls-ca[=file] (Enable remote server's TLS certificate validation) +[no]tls-hostname=hostname (Explicitly set the expected TLS hostname) +[no]tls-certfile=file (Load client TLS certificate chain from file) +[no]tls-keyfile=file (Load client TLS private key from file) +[no]trace (Trace delegation down from root [+dnssec]) +tries=### (Set number of UDP attempts) [3] +[no]ttlid (Control display of ttls in records) +[no]ttlunits (Display TTLs in human-readable units) +[no]unknownformat (Print RDATA in RFC 3597 "unknown" format) +[no]vc (TCP mode (+[no]tcp)) +[no]yaml (Present the results as YAML) +[no]zflag (Set Z flag in query) global d-opts and servers (before host name) affect all queries. local d-opts and servers (after host name) affect only that lookup. -h (print help and exit) -v (print version and exit)
