> For the complete documentation index, see [llms.txt](https://handbook.bsdcn.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://handbook.bsdcn.org/fu-lu-b.-shu-mu/b.2.-an-quan-xing-can-kao-wen-xian.md).

# B.2.安全性参考文献

* **The Book of PF: A No-Nonsense Guide to the OpenBSD Firewall**, Third Edition, 由 [No Starch Press](https://nostarch.com/pf3) 出版，2014。ISBN: 978-1593275891
* **SSH Mastery: OpenSSH, PuTTY, Tunnels, and Keys**, Second Edition, 2018. ISBN: 978-1642350029