Peter N. M. Hansteen (@pitrh@mastodon.social)'s Avatar

Peter N. M. Hansteen (@pitrh@mastodon.social)

@pitrh.bsky.social

Puffyist, daemon charmer, penguin wrangler. Wrote The Book of PF, rants on security and sanity in IT (lack of)@ http://bsdly.blogspot.com. #OpenBSD #unix #cloud #security, Bergen, Norway. See also https://nuug.no https://eurobsdcon.org, https://bsdcan.org

316 Followers  |  207 Following  |  439 Posts  |  Joined: 07.02.2024  |  1.6916

Latest posts by pitrh.bsky.social on Bluesky

Preview
Valuable News – 2026/02/09 The Valuable News weekly series is dedicated to provide summary about news, articles and other interesting stuff mostly but not always related to the UNIX/BSD/Linux systems. Whenever I stumble upon…

The latest Valuable News by @vermaden.bsky.social vermaden.wordpress.com/2026/02/09/v... notes that The Book of PF, 4th edition nostarch.com/book-of-pf-4... has been released #bookofpf #openbsd #freebsd #networking #pf @nostarchpress.bsky.social

09.02.2026 15:01 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
Registration β€” BSDCan BSDCan is a technical BSD conference held in Ottawa, Ontario, Canada.

Registration for BSDCan 2026 is open at www.bsdcan.org/2026/registr... + tutorial schedule published.

#bsdcan #freebsd #openbsd #netbsd #development #networking #devops #sysadmin #conferences

Also see nxdomain.no/~peter/what_... (or bsdly.blogspot.com/2025/11/what... +
medium.com/@peter.hanst...)

08.02.2026 20:16 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
The Rest Is Trash

"The Rest Is Trash"
We are now halfway through the nineteenth year of greytrapping, still tracking and collecting from the wealth of imbecility out there
nxdomain.no/~peter/the_r... bsdly.blogspot.com/2026/02/the-... #spamd #greytrapping #greylisting #openbsd #freebsd #spam #antispam #cybercrime

07.02.2026 11:57 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Registration β€” BSDCan BSDCan is a technical BSD conference held in Ottawa, Ontario, Canada.

Registration for BSDCan 2026 is now open www.bsdcan.org/2026/registr... and tutorials schedule is published.

#bsdcan #openbsd #netbsd #freebsd #libresoftware #freesoftware #conference #development #networking #sysadmin #devops

07.02.2026 11:21 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
The Rest Is Trash

Reprising for the midweek crowd:

The Rest Is Trash nxdomain.no/~peter/the_r... (tracked bsdly.blogspot.com/2026/02/the-...) following up on #greytrapping, updating the 18 years piece nxdomain.no/~peter/eight... #openbsd #spamd #greytrappng #greylisting #antispam #cybercrime #networking #spam

04.02.2026 18:41 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
The Rest Is Trash

The Rest Is Trash nxdomain.no/~peter/the_r... (tracked bsdly.blogspot.com/2026/02/the-...) following up on #greytrapping, updating the 18 years piece nxdomain.no/~peter/eight... #openbsd #spamd #greytrappng #greylisting #antispam #cybercrime #networking # spam

01.02.2026 11:43 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Game of Trees 0.121 released

Game of Trees 0.121 released www.undeadly.org/cgi?action=a... #openbsd #gameoftrees #got #git #development #sourcecontrol #versioncontrol #freesoftware #libresoftware

01.02.2026 11:10 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
EuroBSDCon 2026 β€” EuroBSDCon 2026

Do you want to go to EuroBSDCon 2026.eurobsdcon.org but need support to do so?

Or do you know someone in that situation? Apply for the Paul Schenkeveld Travel Grant before February 1st, 2026!

eurobsdconfoundation.org/travel-grant...

#eurobsdcon #netbsd #openbsd #freebsd #conference #travelgrant

30.01.2026 18:26 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Preview
Greytrapping for years FreeBSD's Future, 18 years of greytrapping, PF vs Linux firewalls, and more.

I was pleasantly surprised to hear that the latest BSDnow www.bsdnow.tv/648 features my "Eighteen years of greytrapping ..." nxdomain.no/~peter/eight... as well as the BSDCan www.bsdcan.org/2026/ organizer interview #bsdcan #bsdnow #freebsd #openbsd #greytrapping

29.01.2026 19:24 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Preview
The Book of PF, 4th Edition Build a more secure network with PF.

And now for the inevitable, shameless plug: The Book of PF, 4th ed nostarch.com/book-of-pf-4... has some preview of upcoming features as well as #openbsd 7.8 and #freebsd 14 #pf configs. Also see the #asiabsdcon tutorial and nxdomain.no/~peter/yes_t... @nostarchpress.bsky.social

28.01.2026 21:34 β€” πŸ‘ 3    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
You Have Installed OpenBSD. Now For The Daily Tasks.

Despite some persistent rumors, installing OpenBSD is both quick and easy on most not too exotic hardware. But once the thing is installed, what is daily life with the most secure free operating system like? See nxdomain.no/~peter/openb... #openbsd #freesoftware #libresoftware #dailydriver #sysadmin

28.01.2026 20:05 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
AsiaBSDCon 2026

This year's first "Network Management with the OpenBSD PF Toolset" session will be at AsiaBSDCon 2026 2026.asiabsdcon.org/index.html.en, 2026.asiabsdcon.org/entry/talk/Z...

Also see nxdomain.no/~peter/what_... #asiabsdcon #freebsd #openbsd #pf #packetfilter #networking #conference @nostarch

27.01.2026 19:05 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
EuroBSDCon 2026 β€” EuroBSDCon 2026

Do you want to go to EuroBSDCon 2026.eurobsdcon.org but need support to do so?

Or do you know someone in that situation? Apply for the Paul Schenkeveld Travel Grant before February 1st, 2026!

eurobsdconfoundation.org/travel-grant...

#eurobsdcon #netbsd #openbsd #freebsd #conference #travelgrant

27.01.2026 15:10 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Preview
The Book of PF, 4th Edition Build a more secure network with PF.

I suppose I forgot to tell you that if you order The Book of PF, 4th ed nostarch.com/book-of-pf-4... now, you'll get the *final version* ebook (print soon) #bookofpf #openbsd #freebsd #networking #firewalls #pf #networktrickery #freesoftware #libresoftware @nostarch
Also nxdomain.no/~peter/yes_t...

27.01.2026 15:09 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
The Problem Isn't Email, It's Microsoft Exchange

An exchange with Outlook-suffering colleagues reminded me of my 2011 rant which is sadly still relevant, "The Problem Isn't Email, It's Microsoft Exchange" nxdomain.no/~peter/the_p... #email #outlook #exchange #uxfail #standardswhatstandards

20.01.2026 12:05 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

One bug bounty hunter too many made me do it - home.nuug.no/~peter/we-do..., more to come in home.nuug.no/~peter/we-do..., won't bother with older reports (which are garbage anyway)

#bugbounty #bogusbugreports #securityposers

20.01.2026 09:07 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
EuroBSDCon 2026 β€” EuroBSDCon 2026

Do you want to go to EuroBSDCon 2026.eurobsdcon.org but need support to do so?

Or do you know someone in that situation? Apply for Paul Schenkeveld Travel Grant before February 1st, 2026!

eurobsdconfoundation.org/travel-grant...

#eurobsdcon #netbsd #openbsd #freebsd #conference #travelgrant

19.01.2026 19:55 β€” πŸ‘ 1    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
DragonFly BSD Digest – A running description of activity related to DragonFly BSD.

The latest "Lazy reading" by Dragonfly Digest www.dragonflydigest.com has "Eighteen years of Greytrapping" nxdomain.no/~peter/eight... featured. (Later this year it wil be nineteen years :) and updates will come) #spamd #spam #openbsd #antispam #greytrapping #greylisting #cybercrime

18.01.2026 14:21 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
(Open) Widevine support added to the chromium port

(Open) Widevine support added to the chromium port www.undeadly.org/cgi?action=a... #openbsd #chromium #widevine #openvidevine #video #streaming #current #development

18.01.2026 11:44 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 1
Call for papers β€” BSDCan BSDCan is a technical BSD conference held in Ottawa, Ontario, Canada.

Only one day left to submit for BSDCan 2026!

Deadline January 17, 2026, see www.bsdcan.org/2026/papers....

About the BSD conferences: nxdomain.no/~peter/what_...

#bsdcan #OpenBSD #NetBSD #FreeBSD #conference #development #networking #security @bsdcan.bsky.social

16.01.2026 16:29 β€” πŸ‘ 2    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
pf: make af-to less magical

pf: make af-to less magical undeadly.org/cgi?action=a... #openbsd #pf #packetfilter #ipv6 #ipv4 #afto #addressfamilytranslation #nat64 #networking #current #developement

16.01.2026 08:54 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
OpenBSD-current now runs as guest under Apple Hypervisor

OpenBSD-current now runs as guest under Apple Hypervisor www.undeadly.org/cgi?action=a... #openbsd #virtualization #applesilicon #arm64 #applehypervisor #current #development

15.01.2026 20:38 β€” πŸ‘ 8    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
MAXCPUS on OpenBSD/amd64-current is now 255

MAXCPUS on OpenBSD/amd64-current is now 255 undeadly.org/cgi?action=a... #openbsd #amd64 #current #maxcpus #development #highperformance #multicore #libresoftware #freesofware

15.01.2026 14:01 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Call for papers β€” BSDCan BSDCan is a technical BSD conference held in Ottawa, Ontario, Canada.

Want to come to #ottawa and tell #BSD geeks what you enjoy doing?

Submit to BSDCan 2026!

Deadline January 17, see www.bsdcan.org/2026/papers....

Tutorials: June 17-18
Conference: June 19-20,

Also see nxdomain.no/~peter/what_...

#freebsd #netbsd #openbsd #conference #development #sysadmin

14.01.2026 14:24 β€” πŸ‘ 4    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
rpki-client 9.7 released

rpki-client 9.7 released undeadly.org/cgi?action=a... #openbsd #rpkiclient #rpki #routing #security #networking #bgp

14.01.2026 10:44 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
LACP mode removed from trunk(4)

LACP mode removed from trunk(4) www.undeadly.org/cgi?action=a... #openbsd #networking #trunk #lacp #development #current

13.01.2026 07:10 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
https://2026.asiabsdcon.org/entry/schedule/ AsiaBSDCon 2026 Get different formats: curl https://2026.asiabsdcon.org/entry/schedule/\?format=table (default) curl https://2026.asiabsdcon.org/entry/schedule/\?format=list 202...

Preliminary AsiaBSDCon 2026 program 2026.asiabsdcon.org/entry/schedu... open soon!

There will be a"Network Management with the OpenBSD Packet Filter Toolset" tutorial (w/ #openbsd and #freebsd labs)

Also see nxdomain.no/~peter/what_...
#asiabsdcon #conference #freesoftware #libresoftware

12.01.2026 20:55 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
NYC*BUG Jan 2026: Upcoming 4th edition of The Book of PF, CRA and more, Peter Hansteen
YouTube video by BSDTV NYC*BUG Jan 2026: Upcoming 4th edition of The Book of PF, CRA and more, Peter Hansteen

The recording from NYC*BUG Saturday January 10th, 2026 session "The Book of PF 4th ed + EU CRA: It's time to Engineer up" is now available:
Youtube: youtu.be/HOCsvcCm1Ec
Peertube: toobnix.org/w/bQPtKXKqJM...
#bookofpf #OpenBSD #freebsd #packetfilter #CRA #SBOMS #dependency #supplychain #security

12.01.2026 09:19 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Call for papers β€” BSDCan BSDCan is a technical BSD conference held in Ottawa, Ontario, Canada.

BSDCan 2026 is in #ottawa June 17 - 20, 2026.

The submissions deadline is January 17, 2027. See the Call for Papers page www.bsdcan.org/2026/papers....

For background, see nxdomain.no/~peter/what_... @bsdcan@bsd.network #bsdcan #FreeBSD #NetBSD #OpenBSD #freesoftware #libresoftware #conferences

11.01.2026 15:04 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
A Major Mail Provider Demonstrate They Likely Do Not Understand Mail At All

A Major Mail Provider Demonstrate They Likely Do Not Understand Mail At All nxdomain.no/~peter/they_... (tracked bsdly.blogspot.com/2026/01/a-ma...)

#greytrapping #spam, #antispam #greylisting #blocklist, #openbsd #freebsd #smtp #email #SMTP, #contentfiltering #SPF #DMARC #security #networking

08.01.2026 21:05 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

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