dew - DeWildcarding dns resolver

Compile

make

Usage

Usage of ./dew:
  --help
    	Prints help text
  -c int
    	Number of "threads" working, tune this for optimum performance. (default 2)
  -cj int
    	Number of concurrent jobs (default 1000)
  -debug
    	Outputs debug information
  -dt duration
    	DNS Timeout in millisecods (default 1s)
  -h	alias for --help
  -mv int
    	Number of required verification dns requests (default 3)
  -r string
    	Optional but recommended resolvers file, newline separated resolver ips
  -v	Enables ip numbers printing to output

Features

• resolve
• retry
• dewildcard
• verify (naive impelentation)
• exclude bad resolvers
• print

TODO

Some servers returns NOERROR for missing A records Some servers returns NXDOMAIN for missing A records We should both look at Rcode and Answer section before disregardning a domain