oh, my "Yes, The Book of PF, 4th Edition Is Coming Soon" blog post https://bsdly.blogspot.com/2025/07/yes-book-of-pf-4th-edition-is-coming.html is on hackernews: https://news.ycombinator.com/item?id=44657803#bookofpf #pf #packetfilter #openbsd #freebsd #networking (non-tracked: https://nxdomain.no/~peter/yes_the_book_of_pf_4th_ed_is_coming.html)
Today, early access reader feedback for The Book of PF, 4th edition proved to me that early access is worth doing.
Get yours at https://nostarch.com/book-of-pf-4th-edition, or read about the work at https://nxdomain.no/~peter/yes_the_book_of_pf_4th_ed_is_coming.html#bookofpf #newedition #freebsdd #openbsd #pf #packetfilter #networking #security #freesoftware #libresoftware
Fellow network nerds, at EuroBSDcon 2025 in Zagreb, there will be a Network Management with the OpenBSD Packet Filter Toolset" https://events.eurobsdcon.org/2025/talk/FW39CX/ session, a full day tutorial starting at 2025-09-25 10:30 CET. You can register for the conference and tutorial by following the links from the conference Registration and Prices https://2025.eurobsdcon.org/registration.html page. #openbsd #freebsd #networking #security #eurobsdcon #conference #pf #packetfilter #freesoftware #libresoftware #zagreb
Yes, The Book of PF, 4th Edition Is Coming Soon https://nxdomain.no/~peter/yes_the_book_of_pf_4th_ed_is_coming.html
Long rumored and eagerly anticipated by some, the fourth edition of The Book of PF is now available for preorder https://nostarch.com/book-of-pf-4th-edition #openbsd #pf #packetfilter #freebsd #networking #security #tcpip #ipv6 #ipv4#bookofpf
Long rumored, eagerly anticipated by some, you can now PREORDER "The Book of PF, 4th edition" https://nostarch.com/book-of-pf-4th-edition for the most up to date guide to the OpenBSD and FreeBSD networking toolset #openbsd #freebsd #networking #pf #packetfilter #firewall #preorder #security
Confirmed: There will be a full day PF tutorial "Network Management with the OpenBSD Packet Filter Toolset" at #eurobsdcon 2025 in #zagreb.
Details to emerge via https://2025.eurobsdcon.org/, and expect more goodies to be announced!
#openbsd #freebsd #pf #packetfilter #networking #security #freesoftware #libresoftware #bsd
Comparing firewall syntax for SSH (port 22) with default-deny:
================================================
#iptables (Linux)
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -P INPUT DROP
#nftables (Linux)
nft add rule inet my_filter input tcp dport 22 accept
nft add rule inet my_filter input drop
#ufw (Linux - simplified frontend to iptables)
ufw allow 22/tcp
ufw default deny incoming
#pf (OpenBSD)
pass in proto tcp to port 22
block all
pf’s syntax feels so elegant, human-readable, & minimal!
After 20years scripting iptables, I’m ready to try UFW on my laptop.
#firewall #sysadmin #pf #iptables #ufw #nftables
Fresh out of the Oven.
I was searching for the best replacement of my Lenovo X1 Carbon 8th Gen's Wirreless Card (...not found yet - anyone?), and found this instead, which may be my 2morrows read:
A #beginners Guide To #Firewalling with #pf #pfsense
Maybe also interesting site for @vermaden s BSD-News? §8-)
A space for Bonfire maintainers and contributors to communicate
