@pitrh@mastodon.social

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

· 6d ago

The first packet sent on an RFC1149-compliant (avian carrier) network is up for auction: https://onlineonly.christies.com/s/fine-printed-books-manuscripts-science/carrier-pigeon-internet-protocol-150/325216 For background, see https://blug.linux.no/project/rfc1149/ and https://nxdomain.no/~peter/rfc1149_implementation_25_years_later.html #rfc1149 #firstpacket #networking #aviancarrier #auction #christies #internethistory #tcpip

Christies.com

Carrier Pigeon Internet Protocol

[WAITZMAN, David and the BERGEN LINUX USER GROUP.] One printed IP/ICMP "ping" packet sent by carrier pigeon per RFC 1149.Small scroll of paper, 41 x 210 mm. Rolling creases visible from when attached to pigeon's leg. Framed. Inscribed and signed on the verso of backing board: "Property of David Waitzman". A surviving packet from the first and most famous implementation of the Carrier Pigeon Internet Protocol. In 1990, the American network engineer David Waitzman authored RFC 1149, A Standard for

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

· 2w ago

Boosted by @oxy@social.bsdlab.au

If you were unable to attend EuroBSDCon 2026 in Brussels, or had to choose between parallel sessions, you can now see the talks directly from the talk descriptions on the program page https://events.eurobsdcon.org/2026/schedule/ or peertube: https://exquisite.tube/c/ebc2026/videos @eurobsdcon #eurobsdcon #bsd #openbsd #netbsd #freebsd #unix #unixlike #freesoftware #libresoftware

events.eurobsdcon.org

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

· 3w ago

Boosted by @oxy@social.bsdlab.au

EuroBSDCon 2026 talks online https://undeadly.org/cgi?action=article;sid=20260916093106 #openbsd #eurobsdcon #conference #development #security

undeadly.org

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

· 1w ago

Boosted by @oxy@social.bsdlab.au

OpenBSD -current is now "8.0-current" https://www.undeadly.org/cgi?action=article;sid=20261001091454 #openbsd #current #newreleasesoon #development #freesoftware #libresoftware

undeadly.org

OpenBSD -current is now "8.0-current"

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

· 1mo ago

Boosted by @oxy@social.bsdlab.au

There will be a PF tutorial at EuroBSDCon 2026 in Brussels: Network Management with the PF Packet Filter Toolset on OpenBSD and FreeBSD Featuring Tom Smyth and Peter Hansteen, 2026-09-11, 10:30, full day See https://events.eurobsdcon.org/2026/talk/RKCHRW/ To register: https://tickets.eurobsdcon.org/eurobsdcon/brussels/ #eurobsdcon #bsd #openbsd #freebsd #networking #firewall #security

events.eurobsdcon.org

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

· 1mo ago

When posting about events such as conferences, please include a clear indication of *where* the thing is. Keep in mind that your post will be seen worldwide, including people who are not in your city, country, time zone or even continent. Including details about possible remote participation is fine of course, mod time zones #conferences #meetups #localtime #remotepartcipation

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

· 5mo ago

Twenty-five years ago today, on 28 April 2001, we tested our TCP/IP over avian carriers (RFC1149) implementation. See "The implementation of the Carrier Pigeon Internet Protocol, RFC1149, 25 years later", https://nxdomain.no/~peter/rfc1149_implementation_25_years_later.html #networking #tcpip #carrierpigeon #rfc1149 #25years

nxdomain.no

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

· 1mo ago

Boosted by @oxy@social.bsdlab.au

rpki-client 9.9 released https://www.undeadly.org/cgi?action=article;sid=20260824085031 #openbsd #openbgpd #rpkiclient #bgp #routing #rpki #security #cryptography #networking #freesoftware #libresoftware

undeadly.org

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

· 1mo ago

At EuroBSDcon 2026: Looney Tunes: FreeBSD, rsync, and ZFS https://events.eurobsdcon.org/2026/talk/JURFDY/ Talk by Mateusz Piotrowski 2026-09-13 17:15:00 To register: https://tickets.eurobsdcon.org/eurobsdcon/brussels/ About EuroBSDcon 2026: https://2026.eurobsdcon.org @eurobsdcon #eurobsdcon #freebsd #netbsd #openbsd #conference #brussels #bruxelles #freesoftware #libresoftware

events.eurobsdcon.org

Looney Tunes: FreeBSD, rsync, and ZFS :: EuroBSDCon 2026 :: pretalx

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

· 2mo ago

The EuroBSDcon 2026 program is published: https://events.eurobsdcon.org/2026/schedule/ See https://2026.eurobsdcon.org for more info To register https://tickets.eurobsdcon.org/eurobsdcon/brussels/ @eurobsdcon #eurobsdcon #netbsd #freebsd #openbsd #conference #freesoftware #libresoftware #brussels #bruxelles

events.eurobsdcon.org

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

· 3mo ago

OpenBSD's pledge(2) and unveil(2) are developer-friendly, study finds https://www.undeadly.org/cgi?action=article;sid=20260708055608 #openbsd #security #pledge #unveil #development #programming

undeadly.org

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

· 2mo ago

Replying to

@jensorensen@mastodon.social It might interest your readers to hear that labeling of AI generated content is now mandatory in the EU: http://www.euronews.com/my-europe/2026/08/02/ai-generated-label-becomes-mandatory-in-the-eu-for-companies

euronews.com

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

· 2mo ago

Those who read my stuff at https://bsdly.blogspot.com (ie the tracked site) will hopefully be pleased with the new look which I think offers better readability. New stuff and most of the useful older things will still be available without trackers at https://nxdomain.no/~peter/blogposts/ of course.

bsdly.blogspot.com

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

· 3mo ago

OpenBSD/amd64 kernel virtual address space is now 512GB https://www.undeadly.org/cgi?action=article;sid=20260623114653 #openbsd #amd64 #addresspace #virtualaddresspace #memory #development #openbsd-current #hackathon

undeadly.org

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

· 2mo ago

Oh, good old test123! We remember him well Jul 20 15:45:32 portal sshd-session[27522]: Failed password for invalid user test123 from 154.83.17.226 port 51552 ssh2 #passwordguessers #passwordgropers #idiots #cybercrime

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

· 5mo ago

A new #openbsd release is due out soon. By way of preparation, "You Have Installed OpenBSD. Now For The Daily Tasks." https://nxdomain.no/~peter/openbsd_installed_now_for_the_daily_tasks.html might be useful reading.

mastodon.social

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

· 2mo ago

I wonder if this actually worked somewhere, somewhen, for somebot Jul 27 07:40:21 skapet sshd-session[71062]: Failed password for invalid user root/bin from 217.156.66.34 port 47552 ssh2 #passwordgropers #passwordguessers #sshgropers #ssh #cybercrime #morons #idiots #bots

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

· 2mo ago

Call for testing: OpenBSD vmm(4)/vmd(8) fd-ification https://www.undeadly.org/cgi?action=article;sid=20260804054218 #openbsd #vmm #vmd #virtualization #virtualmachines #testing #newcode #development #security #freesoftware #libresoftware

undeadly.org

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

· 1mo ago

OpenSSH 10.5 released https://undeadly.org/cgi?action=article;sid=20260811113606 #openbsd #openssh #ssh #security #remotelogin #tunneling #networking #development #freesoftware #libresoftware

undeadly.org

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

· 1mo ago

At EuroBSDcon 2026: Highly Available DNS via BGP Talk by Beni Keller 2026-09-12 10:30:00 To register: https://tickets.eurobsdcon.org/eurobsdcon/brussels/ About EuroBSDcon 2026: https://2026.eurobsdcon.org @eurobsdcon #eurobsdcon #freebsd #netbsd #openbsd #conference #brussels #bruxelles #freesoftware #libresoftware

tickets.eurobsdcon.org

2026 - Brussels

Sept. 9 – 13, 2026

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

· 3mo ago

Boosted by @oxy@social.bsdlab.au

Final week for submitting to #eurobsdcon 2026! https://2026.eurobsdcon.org/cfp/ Submit by June 20th, come to Brussels September 9-13 and mingle with #BSD people! We also offer pre-submission guidance/mentoring, see the CFP text. Wonder what BSD and the conferences are about? See https://nxdomain.no/~peter/what_is_bsd_come_to_a_conference_to_find_out.html @EuroBSDCon #freebsd #netbsd #openbsd #freesoftware #libresoftware #brussels #bruxelles

2026.eurobsdcon.org

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

· 3mo ago

relayd(8) and httpd(8) TLS settings update. https://www.undeadly.org/cgi?action=article;sid=20260629165750 #openbsd #relayd #httpd #tls #ssl #tlsv13 #tlsv12 #security #cryptography #crypto

undeadly.org

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

· 4mo ago

We are very close to a new OpenBSD release. "You Have Installed OpenBSD. Now For The Daily Tasks." https://nxdomain.no/~peter/openbsd_installed_now_for_the_daily_tasks.html can help you prepare for the upgrade. If you are using exim as your MTA (or any other non-base system MTA), "OpenSMTPD Is The Mail Server For The Future" https://nxdomain.no/~peter/time_for_opensmtpd.html contains useful pointers for a better mail future. #openbsd #newrelease #openbsd79 #opensmtpd #email #smtp #rspamd #antispam #spam

nxdomain.no

You Have Installed OpenBSD. Now For The Daily Tasks.

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

· 2mo ago

At EuroBSDcon 2026: Using modern *BSD to get a 4.2BSD system from 1983 running https://events.eurobsdcon.org/2026/talk/YGCH9Y/ Talk by Walter Belgers 2026-09-13 15:15:00 To register: https://tickets.eurobsdcon.org/eurobsdcon/brussels/ About EuroBSDcon 2026: https://2026.eurobsdcon.org @eurobsdcon #eurobsdcon #freebsd #netbsd #openbsd #conference #brussels #bruxelles #freesoftware #libresoftware

events.eurobsdcon.org

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

· 2mo ago

Boosted by @oxy@social.bsdlab.au

At EuroBSDcon 2026: OpenNTPD - 20 years and a few milliseconds later https://events.eurobsdcon.org/2026/talk/MAHMBQ/ Talk by Henning Brauer 2026-09-13 16:15:00 To register: https://tickets.eurobsdcon.org/eurobsdcon/brussels/ About EuroBSDcon 2026: https://2026.eurobsdcon.org @eurobsdcon #eurobsdcon #freebsd #netbsd #openbsd #conference #brussels #bruxelles #freesoftware #libresoftware

events.eurobsdcon.org

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

· 5mo ago

RE: https://mastodon.social/@pitrh/116466172425989791 For your nerdy Sunday reading pleasure: RFC1149 was actually implemented and tested, 25 years ago in Bergen, Norway. My laptop was pinged via carrier pigeon. This article is based on notes collected soon after the event.

mastodon.social

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

· 5mo ago

Do you want to come to Brussels, mingle with BSD people, perhaps do a talk, a tutorial or a BOF session?

The Call for papers https://2026.eurobsdcon.org/cfp/ is open until June 20th, for the conference in Brussels September 9-13, 2026.

We also offer pre-submission guidance/mentoring, as described in the CFP document.

Wonder what BSD and the conferences are about? See https://nxdomain.no/~peter/what_is_bsd_come_to_a_conference_to_find_out.html

@EuroBSDCon #freebsd #netbsd #openbsd #freesoftware #libresoftware #brussels #bruxelles

2026.eurobsdcon.org

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

· 5mo ago

Boosted by @oxy@social.bsdlab.au

The #eurobsdcon 2026 Call for Papers is still open! https://2026.eurobsdcon.org/cfp/ Submit by June 20th, come to Brussels September 9-13 and mingle with #BSD people! We also offer pre-submission guidance/mentoring, see the CFP text. Wonder what BSD and the conferences are about? See https://nxdomain.no/~peter/what_is_bsd_come_to_a_conference_to_find_out.html @EuroBSDCon #freebsd #netbsd #openbsd #freesoftware #libresoftware #brussels #bruxelles

2026.eurobsdcon.org

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

· 2mo ago

Replying to

@jwildeboer@social.wildeboer.net This is what I get from Norway (Telia Norway network): https://nxdomain.no/~peter/crawlstop_Norway_telia_network.jpg In the EEA, so likely same thing

nxdomain.no

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

· 5mo ago

Replying to

@simon_brooke yes, that was my laptop pinged :) I still have that relic somewhere. And it was of course a fun and quite unusual experience

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

· 2mo ago

Boosted by @oxy@social.bsdlab.au

Returning readers will remember my "Eighteen years of greytrapping" piece (https://nxdomain.no/~peter/eighteen_years_of_greytrapping.html or tracked https://bsdly.blogspot.com/2025/08/eighteen-years-of-greytrapping-is.html and may also remember that it has numbers and graphs. It's now been more like 19 years of the activity, and the numbers and graphs are refreshed as of end of July. #spam #antispam #spamd #openbsd #greylisting #greytrapping #security #cybercrime #cybersecurity #smtp #email

nxdomain.no

Eighteen Years of Greytrapping - Is the Weirdness Finally Paying Off?

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

· 5mo ago

Selectively block cores from the scheduler with sysctl hw.blockcpu https://www.undeadly.org/cgi?action=article;sid=20260415050032 #openbsd #sysctl #hw.blockcpu #blockcpu #development #performance #smt #smt #smp #multicore

undeadly.org

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

· 2mo ago

Boosted by @oxy@social.bsdlab.au

Replying to

@erstwhile@theblower.au alternatively https://home.nuug.no/~peter/pf/en/bruteforce.html

home.nuug.no

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

· 5mo ago

BSDCan https://www.bsdcan.org/2026/ Talk Saturday 2026-06-20: 11:00 - 11:50 DMS 1130
NetManager - Building products with NetBSD round 2
Stephen Borrill
https://www.bsdcan.org/2026/timetable/timetable-NetManager---Building.html
To register https://www.bsdcan.org/2026/registration.html @bsdcan #netbsd #netmanager

BSDCan

BSDCan - BSDCan

BSDCan is a technical BSD conference held in Ottawa, Ontario, Canada.

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

· 5mo ago

BSDCan https://www.bsdcan.org/2026/ Talk Saturday 2026-06-20: 15:45 - 16:35 DMS 1120 A Two-Step FreeBSD Installer: Current Status and Future Plans Alfonso Sabato Siciliano https://www.bsdcan.org/2026/timetable/timetable-A-Two-Step-FreeBSD.html To register https://www.bsdcan.org/2026/registration.html @bsdcan #freebsd #installer

BSDCan

BSDCan - BSDCan

BSDCan is a technical BSD conference held in Ottawa, Ontario, Canada.

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

· 5mo ago

Replying to

@GossiTheDog oh, please do! there's a tiny chance some single-digit percentage of the affected users would start actually considering information security as a consequence (which would be huge in itself) even after the giggles have silenced.

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

· 5mo ago

If you are a #postfix user and think what is described in this HOWTO http://www.postfix.org/ADDRESS_VERIFICATION_README.html[1] is useful, I can tell you:

IT IS NOT.

Longer version: https://nxdomain.no/~peter/twenty-plus_years_on_smtp_callbacks_are_still_pointless.html

[1] a more appropriate title would be "Further punishing joejob targets HOWTO"

#smtp #postfix #smtpcallbacks #joejobs #greytrapping

mastodon.social

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

· 5mo ago

Boosted by @oxy@social.bsdlab.au

The #eurobsdcon 2026 Call for Papers is still open! https://2026.eurobsdcon.org/cfp/ Submit by June 20th, come to Brussels September 9-13 and mingle with #BSD people! We also offer pre-submission guidance/mentoring, see within. Wonder what BSD and the conferences are about? See https://nxdomain.no/~peter/what_is_bsd_come_to_a_conference_to_find_out.html @EuroBSDCon #freebsd #netbsd #openbsd #freesoftware #libresoftware #brussels #bruxelles

2026.eurobsdcon.org

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

· 5mo ago

Boosted by @oxy@social.bsdlab.au

Replying to

@dch@bsd.network @nuintari@mastodon.bsd.cafe the rapid-fire ssh gropers are easy to deal with, use state tracking and overload rules (eg https://home.nuug.no/~peter/pf/en/bruteforce.html with embellishment). blocklistd is useful, but I also use endlessh for the redirect target https://github.com/skeeto/endlessh and keep overload table expiry at six weeks.

home.nuug.no

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

· 5mo ago

Replying to

@nuintari@mastodon.bsd.cafe yes, I am reminded of my some years old "Why Not Use Port Knocking" https://nxdomain.no/~peter/why_not_use_port_knocking.html (part of the "Hail Mary Cloud" sequence, summarized in https://nxdomain.no/~peter/hailmary_lessons_learned.html)

nxdomain.no

Why Not Use Port Knocking?

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

· 5mo ago

Replying to

@pertho@mastodon.bsd.cafe @dch@bsd.network @nuintari@mastodon.bsd.cafe They keep adding themselves to the bruteforce table which at the moment has [Wed Apr 29 09:57:58] peter@skapet:~/website$ doas pfctl -t bruteforce -T show | wc -l 94409 entries - six week expiry. The result is exported for reuse, cf https://nxdomain.no/~peter/badness_enumerated_by_robots.html

nxdomain.no

Badness, Enumerated by Robots

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

· 5mo ago

Yes, world+dog (or at least a subset that lives in the annoyingly big cloud providers' IP ranges) is scanning for Wordpress instances where they are not to be found. What do *you* do about those?

Yes, world+dog (or at least a subset that lives in the annoyingly big cloud providers' IP ranges) is scanning for Wordpress instances where they are not to be found. What do you do about those?

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

· 5mo ago

Replying to

@dch@bsd.network @ianthetechie@fosstodon.org @mischa@exquisite.social @nuintari@mastodon.bsd.cafe yes, and it has the ability to send gropers for certain IDs such as root, admin etc to fsckoffstan. here the groping for local parts of published spamtraps on ssh, pop3 etc is the annoyance/entertainment

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

· 5mo ago

Replying to

@dch@bsd.network @nuintari@mastodon.bsd.cafe and as should surprise no-one all of those are in the book https://nostarch.com/book-of-pf-4e (adding mention of blocklistd and endlessh were part of the 4th edition rewrite)

nostarch.com

The Book of PF, 4th Edition

Build a more secure network with PF.

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

· 5mo ago

Replying to

@ianthetechie@fosstodon.org @mischa@exquisite.social @dch@bsd.network @nuintari@mastodon.bsd.cafe something similar to sshguard but for all protocols would be nice. The best thing to my mind about PF state tracking options is that you can apply them to anything. SSH is important, but it's not the only service that gets groped. I keep thinking a revised https://nxdomain.no/~peter/badness_enumerated_by_robots.html might be in order soon, but it does have useful pointers still.

nxdomain.no

Badness, Enumerated by Robots

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

· 5mo ago

Replying to

@nuintari@mastodon.bsd.cafe and of course the followups back then from the pro-knocking crowd was essentially "we've all moved on to single packet auth now"

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

· 4d ago

Boosted by @oxy@social.bsdlab.au

If you need financial assistance to attend EuroBSDCon 2027, the Paul Schenkeveld Travel Grant https://eurobsdconfoundation.org/travel-grant.html may be for you. Apply before 2027-02-01 #eurobsdcon @EuroBSDCon@mastodon.bsd.cafe #bsd #openbsd #netbsd #freebsd

eurobsdconfoundation.org

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

· 5mo ago

BSDCan https://www.bsdcan.org/2026/ Talk Saturday 2026-06-20: 15:45 - 16:35 DMS 1130
pkgbase in Production: A Practical Overview
Lukas Engelhardt
https://www.bsdcan.org/2026/timetable/timetable-pkgbase-in-Production.html
To register https://www.bsdcan.org/2026/registration.html @bsdcan #freebsd #pkgbase

BSDCan

BSDCan - BSDCan

BSDCan is a technical BSD conference held in Ottawa, Ontario, Canada.

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

· 5mo ago

Replying to

@jornane@mastodon.bsd.cafe @stefano@mastodon.bsd.cafe unfortunately, it's still there, your client treats "[1" as part of the URl for some reason.

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