(linuxfirewalls third edition. Personally, I think it is more effective than Turing's book. That book is more classic but has a strong theoretical contrast. I have looked at this book and it is still effective. Like brothers, please take a look. In the download section, there are always people who unconsciously change the title and upload resources repeatedly, causing me to waste beans. If you like this book, please donate some beans to me. This document includes the following attachments:
LINUX Firewall__(3rd edition of the original book).pdf
.....too many files .....)