You now know the basics, and I daresay more, about socket programming. You can apply this stuff to Ruby, and to anywhere else you may find yourself programming. This is knowledge that will stick with you and remain useful.
Thanks for taking the time to read this book. I hope it gives you a deeper understanding of the work you do and the technologies you work with. My email address is firstname.lastname@example.org and I’m happy to chat about the book or any related programming topics.