drill - get (debug) information out of DNS(SEC)

       Jelte Jansen and Miek Gieben. Both of NLnet Labs.

       Copyright (c) 2004-2008 NLnet Labs.  Licensed under the revised BSD license. There is  NO  warranty;  not
       even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

drill  is  a tool designed to get all sorts of information out of the DNS. It is specifically designed to
       be used with DNSSEC.

       The name drill is a pun on dig. With drill you should be able get even more information than with dig.

       If no arguments are  given  class  defaults  to  'IN'  and  type  to  'A'.  The  server(s)  specified  in
       /etc/resolv.conf are used to query against.

       name Ask for this name.

       @server Send to query to this server. If not specified use the nameservers from /etc/resolv.conf.

       type Ask for this RR type. If type is not given on the command line it defaults to 'A'. Except when doing
       a reverse lookup when it defaults to 'PTR'.

       class Use this class when querying.

       The  exit status is 0 if the looked up answer is secure and trusted, or insecure.  The exit status is not
       0 if the looked up answer is untrusted or bogus, or an error occurred while performing the lookup.

/usr/share/dns/root.key
              The file from which trusted keys are loaded when no -k option is given.

       drill - get (debug) information out of DNS(SEC)

-D     Enable DNSSEC in the query. When querying for DNSSEC types (DNSKEY, RRSIG, DS and  NSEC)  this  is
              not automatically enabled.

       -T     Trace name from the root down. When using this option the @server arguments is not used.

       -S     Chase the signature(s) of 'name' to a known key or as high up in the tree as possible.

       -IIPv4orIPv6address
              Source  address  to  query from.  The source address has to be present on an interface of the host
              running drill.

       -Vlevel
              Be more verbose. Set level to 5 to see the actual query that is sent.

       -Q     Quiet mode, this overrules -V.

       -ffile
              Read the query from a file. The query must be dumped with -w.

       -ifile
              read the answer from the file instead from the network. This aids in debugging and can be used  to
              check  if  a query on disk is valid.  If the file contains binary data it is assumed to be a query
              in network order.

       -wfile
              Write an answer packet to file.

       -qfile
              Write the query packet to file.

       -v     Show drill's version.

       -h     Show a short help message.

   QUERYOPTIONS-4     Stay on ip4. Only send queries to ip4 enabled nameservers.

       -6     Stay on ip6. Only send queries to ip6 enabled nameservers.

       -a     Use the resolver structure's fallback mechanism if the answer is truncated (TC=1). If a  truncated
              packet  is  received  and  this option is set, drill will first send a new query with EDNS0 buffer
              size 4096.

              If the EDNS0 buffer size was already set to 512+ bytes, or the  above  retry  also  results  in  a
              truncated answer, the resolver structure will fall back to TCP.

       -bsize
              Use size as the buffer size in the EDNS0 pseudo RR.

       -cfile
              Use file instead of /etc/resolv.conf for nameserver configuration.

       -ddomain
              When tracing (-T), start from this domain instead of the root.

       -t     Use TCP/IP when querying a server

       -kkeyfile
              Use this file to read a (trusted) key from. When this options is given drill tries to validate the
              current  answer  with  this  key. No chasing is done. When drill is doing a secure trace, this key
              will be used as trust anchor. Can contain a DNSKEY or a DS record.

              Alternatively, when DNSSEC enabled  tracing  (-TD)  or  signature  chasing  (-S),  if  -k  is  not
              specified, and a default trust anchor (/usr/share/dns/root.key) exists and contains a valid DNSKEY
              or DS record, it will be used as the trust anchor.

       -omnemonic
              Use  this  option  to set or unset specific header bits. A bit is set by using the bit mnemonic in
              CAPITAL letters. A bit is unset when the mnemonic is given in lowercase. The  following  mnemonics
              are understood by drill:

                      QR, qr: set, unset QueRy (default: on)
                      AA, aa: set, unset Authoritative Answer (default: off)
                      TC, tc: set, unset TrunCated (default: off)
                      RD, rd: set, unset Recursion Desired (default: on)
                      CD, cd: set, unset Checking Disabled  (default: off)
                      RA, ra: set, unset Recursion Available  (default: off)
                      AD, ad: set, unset Authenticated Data (default: off)

              Thus:  -oCD, will enable Checking Disabled, which instructs the cache to not validate the answers
              it gives out.

       -pport
              Use this port instead of the default of 53.

       -rfile
              When tracing (-T), use file as a root servers hint file.

       -s     When encountering a DNSKEY print the equivalent DS also.

       -u     Use UDP when querying a server. This is the default.

       -wfile
              write the answer to a file. The file will contain a hexadecimal dump of the  query.  This  can  be
              used in conjunction with -f.

       -x     Do a reverse lookup. The type argument is not used, it is preset to PTR.

       -y<name:key[:algo]>
              specify named base64 tsig key, and optional an algorithm (defaults to hmac-md5.sig-alg.reg.int)

       -z     don't randomize the nameserver list before sending queries.

   EDNSQUERYOPTIONS+nsid  When set, this EDNS option includes an EDNS name server ID request in the query.

       Report bugs to <dns-team@nlnetlabs.nl>.

drillmxmiek.nl Show the MX records of the domain miek.nl

       drill-Sjelte.nlnetlabs.nl
              Chase  any signatures in the jelte.nlnetlab.nl domain. This option is only available when ldns has
              been compiled with openssl-support.

       drill-TDwww.example.com
              Do a DNSSEC (-D) trace (-T) from the rootservers down to www.example.com.  This option only  works
              when ldns has been compiled with openssl support.

       drill-sdnskeyjelte.nlnetlabs.nl
              Show  the  DNSKEY record(s) for jelte.nlnetlabs.nl. For each found DNSKEY record also print the DS
              record.

dig(1), RFC403{3,4,5}.

                                                   28 May 2006                                          drill(1)

drill [ OPTIONS ] name [ @server ] [ type ] [ class ]