diff --git a/tools/dnsenum.md b/tools/dnsenum.md
new file mode 100644
index 0000000..c6f5f0c
--- /dev/null
+++ b/tools/dnsenum.md
@@ -0,0 +1,49 @@
+# dnsenum
+
+Notes
+-------
+
+Help Text
+-------
+Usage: dnsenum.pl [Options] <domain> 
+[Options]:
+Note: the brute force -f switch is obligatory.
+GENERAL OPTIONS:
+  --dnsserver 	<server>
+			Use this DNS server for A, NS and MX queries.
+  --enum		Shortcut option equivalent to --threads 5 -s 15 -w.
+  -h, --help		Print this help message.
+  --noreverse		Skip the reverse lookup operations.
+  --private		Show and save private ips at the end of the file domain_ips.txt.
+  --subfile <file>	Write all valid subdomains to this file.
+  -t, --timeout <value>	The tcp and udp timeout values in seconds (default: 10s).
+  --threads <value>	The number of threads that will perform different queries.
+  -v, --verbose		Be verbose: show all the progress and all the error messages.
+GOOGLE SCRAPING OPTIONS:
+  -p, --pages <value>	The number of google search pages to process when scraping names, 
+			the default is 5 pages, the -s switch must be specified.
+  -s, --scrap <value>	The maximum number of subdomains that will be scraped from Google (default 15).
+BRUTE FORCE OPTIONS:
+  -f, --file <file>	Read subdomains from this file to perform brute force.
+  -u, --update	<a|g|r|z>
+			Update the file specified with the -f switch with valid subdomains.
+	a (all)		Update using all results.
+	g		Update using only google scraping results.
+	r		Update using only reverse lookup results.
+	z		Update using only zonetransfer results.
+  -r, --recursion	Recursion on subdomains, brute force all discovred subdomains that have an NS record.
+WHOIS NETRANGE OPTIONS:
+  -d, --delay <value>	The maximum value of seconds to wait between whois queries, the value is defined randomly, default: 3s.
+  -w, --whois		Perform the whois queries on c class network ranges.
+			 **Warning**: this can generate very large netranges and it will take lot of time to performe reverse lookups.
+REVERSE LOOKUP OPTIONS:
+  -e, --exclude	<regexp>
+			Exclude PTR records that match the regexp expression from reverse lookup results, useful on invalid hostnames.
+OUTPUT OPTIONS:
+  -o --output <file>	Output in XML format. Can be imported in MagicTree (www.gremwell.com)
+
+Example Usage
+-------
+
+Links
+-------