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

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:
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#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

https://srobb.net/pf.html

Maybe also interesting site for @vermaden s BSD-News? §8-)