dnsrecon - DNS Enumueration and Scanning Tool
Show help message and exit
-d, --domain <domain>
Domain to Target for enumeration.
-r, --range <range>
IP Range for reverse look-up brute force in formats (first-last)
or in (range/bitmask).
-n, --name_server <name>
Domain server to use, if none is given the SOA of the
target will be used
-D, --dictionary <file>
Dictionary file of sub-domain and hostnames to use for
-f Filter out of Brute Force Domain lookup records that resolve
to the wildcard defined IP Address when saving records.
-t, --type <types>
Specify the type of enumeration to perform:
std To Enumerate general record types, enumerates.
SOA, NS, A, AAAA, MX and SRV if AXRF on the
NS Servers fail.
rvl To Reverse Look Up a given CIDR IP range.
brt To Brute force Domains and Hosts using a given
srv To Enumerate common SRV Records for a given
axfr Test all NS Servers in a domain for misconfigured
goo Perform Google search for sub-domains and hosts.
snoop To Perform a Cache Snooping against all NS
servers for a given domain, testing all with
file containing the domains, file given with -D
tld Will remove the TLD of given domain and test against
all TLD's registered in IANA
zonewalk Will perform a DNSSEC Zone Walk using NSEC Records.
-a Perform AXFR with the standard enumeration.
-s Perform Reverse Look-up of ipv4 ranges in the
SPF Record of the targeted domain with the
-g Perform Google enumeration with the standard
-w Do deep whois record analysis and
reverse look-up of IP ranges found thru whois
when doing standard query.
-z Performs a DNSSEC Zone Walk with the standard
Number of threads to use in Range Reverse Look-up,
Forward Look-up Brute force
and SRV Record Enumeration
Time to wait for a server to response to a query.
--db <file> SQLite 3 file to save found records.
--xml <file> XML File to save found records.
-c, --csv <file> Comma separated value file.
-v Show attempts in the bruteforce modes.
I wrote this tool back in late 2006 and it has been my favorite tool for
enumeration thru DNS, in great part because I wrote it and it gives the output
in a way that I can manipulate it in my own style. One of the features that I
used the most and gave me excellent results is the SRV record enumeration.
- The script will perform the following:
- Standard Record Enumeration for a given domain (A, NS, SOA
and MX). Top Leven Domain Expansion for a given domain. Zone Transfer
against all NS records of a given domain. Reverse Lookup against a given
IP Range given a start and end IP.
- SRV Record enumeration, enumerating:
- Brute force hostnames and subdomains of a given target
domain using a wordlist.
Carlos Perez, Carlos_Perez@darkoperator.com
Copyright (C) 2012 Carlos Perez
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; Applies version 2 of the License.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
St, Fifth Floor, Boston, MA 02110-1301 USA