At BSDCan 2026: Full day Network Management with the Packet Filter Toolset on OpenBSD and FreeBSD https://www.bsdcan.org/2026/timetable/timetable-Network-Management-with.html

To register: https://www.bsdcan.org/2026/registration.html

See https://nxdomain.no/~peter/pf_tutorial_upcoming_questions_welcome.html (https://bsdly.blogspot.com/2025/05/for-upcoming-pf-tutorials-we-welcome.html)
and https://nxdomain.no/~peter/what_is_bsd_come_to_a_conference_to_find_out.html (https://bsdly.blogspot.com/2025/11/what-is-bsd-come-to-conference-to-find.html)
plus https://nostarch.com/book-of-pf-4e

#pf #packetfilter #bookofpf #networking @nostarch @bsdcan

[Repost for the morning (CEST) crowd]

Friends, I wrote a book. It's now out in its fourth edition.

More in "The Book of PF, 4th Edition: It's Here, It's Real" https://nxdomain.no/~peter/its_real_its_here.html

For background, "Yes, The Book of PF, 4th Edition Is Coming Soon" https://nxdomain.no/~peter/yes_the_book_of_pf_4th_ed_is_coming.html

Get the book: https://nostarch.com/book-of-pf-4e

@nostarch #bookofpf #pf #networking #openbsd #freebsd #networktrickery #cybersecurity

In case you missed it earlier,

The Book of PF, 4th Edition: It's Here, It's Real https://nxdomain.no/~peter/its_real_its_here.html

And I will have copies with me to upcoming events #openbsd #freebsd #bsd #pf #packetfilter #bookofpf #4thedition #asiabsdcon #bsdcan #eurobsdcon @nostarch

Yes, You Too Can Be An Evil Network Overlord - On The Cheap With OpenBSD, pflow And nfsen https://nxdomain.no/~peter/yes_you_too_can_be_an_evil_network_verlord.html

A story about network metadata and #openbsd, originally from 2014, good for reprising. See The Book of PF for more #nfsen #netflow #pflow #monitoring #networking #security #pf #packetfilter #bookofPF @nostarch

The fresh 4th edition of The Book of PF in physical form has reached Europe (Ireland), https://www.linkedin.com/posts/tomsmythconnect_thebookofpf-openbsd-packetfilter-activity-7427686906349555713-7s4w - so my stack of author copies are hopefully on the way too.

The book home page is at https://nostarch.com/book-of-pf-4th-edition

Some background https://nxdomain.no/~peter/yes_the_book_of_pf_4th_ed_is_coming.html @nostarch #bookofpf #openbsd #freebsd #pf #packetfilter #networking #security

Upcoming "Network Management with the OpenBSD Packet Filter Toolset" tutorials (covering #freebsd and #openbsd):

2026-03-19 AsiaBSDCon (Taipei, TW) https://www.asiabsdcon.org
2026-06-18 BSDCan (Ottawa, CA) https://www.bsdcan.org

See https://nxdomain.no/~peter/pf_tutorial_upcoming_questions_welcome.html (https://bsdly.blogspot.com/2025/05/for-upcoming-pf-tutorials-we-welcome.html)
and https://nxdomain.no/~peter/what_is_bsd_come_to_a_conference_to_find_out.html (https://bsdly.blogspot.com/2025/11/what-is-bsd-come-to-conference-to-find.html)
plus https://nxdomain.no/~peter/yes_the_book_of_pf_4th_ed_is_coming.html (https://bsdly.blogspot.com/2025/07/yes-book-of-pf-4th-edition-is-coming.html)

#pf #packetfilter #bookofpf #networking @nostarch

acquired - tome of pf

(this is not sponsored content, I just like the book)

thank you @pitrh

https://nostarch.com/book-of-pf-4th-edition

#unix_surrealism #comic #technomage #openbsd #pf #bookofpf

Oh, I suppose I have been slacking and not telling you that if you order The Book of PF, 4th ed https://nostarch.com/book-of-pf-4th-edition now, you will get the *final version* ebook (print is still in progress) #bookofpf #openbsd #freebsd #networking #firewalls #pf #networktrickery #freesoftware #libresoftware @nostarch

Also see https://nxdomain.no/~peter/yes_the_book_of_pf_4th_ed_is_coming.html