How to: Networking
* [Dnsruby](https://github.com/alexdalitz/dnsruby) - A pure Ruby DNS client library which implements a stub resolver. It aims to comply with all DNS RFCs.
* [RubyDNS](https://github.com/ioquatix/rubydns) - A high-performance DNS server which can be easily integrated into other projects or used as a stand-alone daemon.
* [PacketFu](https://github.com/packetfu/packetfu) - A library for reading and writing packets to an interface or to a libpcap-formatted file.