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Carsten Strotmann

@cstrotm@mastodon.social
mastodon 4.6.0-nightly.2026-04-17

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

0 Followers
0 Following
Joined April 04, 2017
Topics:
DNS, IPv6, Free Software, Forth, Atari 8bit, Retro-Computing, Pen & Paper RPG
Github:
Https://github.com/cstrotm

Posts

Open post
cstrotm
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
Carsten Strotmann
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
@cstrotm@mastodon.social · 4d ago

A new version of EtherSLIP (Ethernet over SLIP packet driver for MS-DOS) is available, two bugs fixed by Michael Brutman.

The new version can be found at
https://www.brutman.com/Device_Drivers/packet_drivers/EtherSlip_v11.8.zip

More details about the bugs are in the ZIP archive, which also includes the updated source code.

#msdos #networking #retrocomputing

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Open post
cstrotm
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
Carsten Strotmann
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
@cstrotm@mastodon.social · Mar 26, 2026

es gibt neue BIND 9 Versionen, in denen wurden Sicherheitsprobleme vorheriger Versionen gefixed:

https://kb.isc.org/docs/cve-2026-1519
https://kb.isc.org/docs/cve-2026-3104
https://kb.isc.org/docs/cve-2026-3119
https://kb.isc.org/docs/cve-2026-3591

u.a. Denial-of-Service bei BIND 9 Revolvern (CPU-Auslastung, Speicherauslastung, Crash).

Die ISC-Repositories haben die neuen Versionen

- 9.18.47
- 9.20.21

Ich empfehle ein Update, sobald die neuen BIND 9 Versionen in den Repositories der Linux-Distribution verfügbar ist.

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cstrotm
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
Carsten Strotmann
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
@cstrotm@mastodon.social · Mar 19, 2026
@me_ Hallo Michael, wir haben Dir einen Ausstellungsplatz reserviert. Bitte sende eine kurze Beschreibung Deiner Ausstellung an Hans @vcfe (ca. 700 Zeichen) für die VCFe Webseite https://www.vcfe.org/D/Ausstellung.html
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cstrotm
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
Carsten Strotmann
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
@cstrotm@mastodon.social · Mar 18, 2026
@me_ Super, ich habe Dich am Samstag Nachmittag eingeplant. Platz für eine Ausstellung ist bestimmt noch vorhanden, ich habe Hans angefragt, er wird sich melden
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cstrotm
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
Carsten Strotmann
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
@cstrotm@mastodon.social · Mar 18, 2026
@norbert_kehrer The font is “spleen” from @fcambus https://github.com/fcambus/spleen in kitty https://sw.kovidgoyal.net/kitty/
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cstrotm
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
Carsten Strotmann
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
@cstrotm@mastodon.social · Mar 18, 2026
@me_ Hallo Michael, ja sehr gerne, besonders da ich auf der GUUG Deinen Vortrag verpasst habe und den gerne “live” sehen würde. Kann ich den Abstract von der GUUG Webseite/Pretalx übernehmen. Hast Du für den Vortrag eine Präferenz für den Tag (Fri/Sa/So)?
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Open post
cstrotm
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
Carsten Strotmann
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
@cstrotm@mastodon.social · Mar 18, 2026

And an update to the DNS-resolver checks script

https://github.com/cstrotm/dns-resolver-monitoring

#DNS #DNSSEC #monitoring

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GitHub - cstrotm/dns-resolver-monitoring: Scripts for DNS resolver monitoring
GitHub

GitHub - cstrotm/dns-resolver-monitoring: Scripts for DNS resolver monitoring

Scripts for DNS resolver monitoring. Contribute to cstrotm/dns-resolver-monitoring development by creating an account on GitHub.

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Open post
cstrotm
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
Carsten Strotmann
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
@cstrotm@mastodon.social · Mar 18, 2026

Update for the DNS (zone/authoritative) monitoring test suite

https://github.com/cstrotm/dns-monitoring-scripts

#dns #dnssec #monitoring

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GitHub - cstrotm/dns-monitoring-scripts: Simple shell scripts for DNS and DNSSEC monitoring
GitHub

GitHub - cstrotm/dns-monitoring-scripts: Simple shell scripts for DNS and DNSSEC monitoring

Simple shell scripts for DNS and DNSSEC monitoring - cstrotm/dns-monitoring-scripts

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Open post
cstrotm
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
Carsten Strotmann
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
@cstrotm@mastodon.social · Mar 14, 2026

Vom 1.-3. Mai 2026 findet zum 24ten Mal das VCFe (Vintage Computer Festival Europe) in München statt.

Es wird tolle historische Rechner und interessante Vorträge geben. Wer hat noch eine interessante Hardware im Keller oder eine tolle Geschichte im Kopf, oder ein Retro-Computer Projekt zu zeigen?

Wir haben noch einige (wenige) Vortrags-Slots frei.

Bei Interesse meldet euch hier bei mir oder per E-Mail bei der Orga:
https://www.vcfe.org/D/Vortraege.html

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VCFe.org
vcfe.org

VCFe.org

Vintage Computer Festival Event Information

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Open post
cstrotm
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
Carsten Strotmann
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
@cstrotm@mastodon.social · Mar 13, 2026

Does anyone run the YADIFA DNS Server (https://yadifa.eu/) in production? I would be interested in stories about this piece of open source software. How widespread is it deployed?

#DNS #dnsserver #Yadifa

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yadifa.eu

HOME | YADIFA

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Open post
cstrotm
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
Carsten Strotmann
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
@cstrotm@mastodon.social · Mar 13, 2026

"Rundumschlag" über einige neue Entwicklungen rund um DNS, mein Vortrag letzte Woche bei der GUUG:

https://notes.defaultroutes.de/the-dns-they-are-changin.html

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notes.defaultroutes.de

The DNS they are changin'

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Open post
cstrotm
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
Carsten Strotmann
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
@cstrotm@mastodon.social · Mar 13, 2026

Johannes Weber hat mit mir in seinem Podcast über DNS allgemein und DNS-over-HTTPS im Speziellen gesprochen. Das Ergebnis hört ihr hier https://securityasapodcast.de/podcast/05-doh-dns-over-https/

#podcast #DNS #DoH #dnsoverhttps

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securityasapodcast.de

05: DoH – DNS over HTTPS – Security-as-a-Podcast

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Open post
cstrotm
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
Carsten Strotmann
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
@cstrotm@mastodon.social · Feb 20, 2026

Beetles Retro Dachboden: Foenix F256K unboxing

https://www.youtube.com/watch?v=Fewk8t4yAlg

#6502processor #65816processor #retrocomputing

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Beetles Retro Dachboden: Foenix F256K unboxing
YouTube

Beetles Retro Dachboden: Foenix F256K unboxing

Beetle060 (a standard nerd)

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Open post
cstrotm
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
Carsten Strotmann
Carsten Strotmann
@cstrotm@mastodon.social

DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth

mastodon.social
@cstrotm@mastodon.social · Dec 18, 2025

@miek@mastodon.cloud TTL mismatch kills the redundancy. Here, after 300 seconds only the 2nd IP with TTL 86400 stays in the cache (for 86100 seconds).

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