metasploit-framework

https://github.com/rapid7/metasploit-framework

Ruby

Metasploit Framework

Net::DNS::Resolver#use_tcp=

If +use_tcp+ is true, the resolver will perform all queries
using TCP virtual circuits instead of UDP datagrams, which
is the default for the DNS protocol.

  res.use_tcp = true
  res.query "host.example.com"
    #=> Sending TCP segments...

Default is false.

Source | Google | Stack overflow

Edit

git clone [email protected]:rapid7/metasploit-framework.git

cd metasploit-framework

open lib/net/dns/resolver.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Net--DNS--Resolver-use_tcp--for-pr

# Commit to git

git add lib/net/dns/resolver.rbgit commit -m "better docs for Net::DNS::Resolver#use_tcp="

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-Net--DNS--Resolver-use_tcp--for-pr

hub pull-request

# Celebrate!