just sticking this here so i can find it later. thanks @mubix
cat hosts.txt | xargs -t -I subdomain dig +noall subdomain.THEDOMAIN.com +answer
update, rob pointed me to his post on it
http://www.room362.com/blog/2014/01/29/hostname-bruteforcing-on-the-cheap/
cat hosts.txt | xargs -t -I subdomain dig +noall subdomain.THEDOMAIN.com +answer
update, rob pointed me to his post on it
http://www.room362.com/blog/2014/01/29/hostname-bruteforcing-on-the-cheap/