The German stock market experienced a positive performance on Tuesday, with the DAX index closing at 23,881 points, representing a 0.6% increase compared to the... https://news.osna.fm/?p=17555 | #news #dax #gains #lead #mtu

#news ⚡ Dax legt zu – MTU und Scout 24 vorn: Am Dienstag hat der Dax zugelegt. Zum Xetra-Handelsschluss wurde der Index mit 23.881 Punkten berechnet, ein Plus in Höhe von 0,6 Proz... https://hubu.de/?p=297379 | #dax #mtu #scout #hubu

¡Conoce el MTU! 🗣️ Te explicamos qué es el Monto Límite Bancario, cómo funciona y cuáles son los cambios que se implementarán a partir del 1 de octubre. Infórmate sobre esta noticia en el artículo. #MTU #Bancos #Noticias #FinanzasPersonales

Infórmate: https://zurl.co/fQtWx

¡Tus finanzas cambian! ✍️ El MTU (Monto Límite Bancario) tendrá modificaciones desde el 1 de octubre. Entérate de lo que hay detrás de esta regulación y cómo te afecta en el artículo. #MTU #Banca #Noticias #Economía

Lee la nota: https://zurl.co/pRLN7

¡Alerta financiera! 🚨 ¿Qué es el MTU o Monto Límite Bancario? Te explicamos cómo funciona y los cambios que entran en vigor a partir del 1 de octubre. Conoce los detalles en la nota. #MTU #Bancos #Finanzas #México

Más aquí: https://zurl.co/iom1z

Yesterday's links:

One more planet
https://polyhedralnonsense.com/2025/09/03/building-a-galaxy-9-nevron-the-sea-dogs/

New magic item: gloves of transmuting
https://seaofstarsrpg.wordpress.com/2025/09/02/tuesday-magic-item-gloves-of-transmuting/

Dollguard
https://occultronics.blogspot.com/2025/09/dollguard-arise-ye-wretched.html

New magic item: leper's veil
https://ancientvaults.wordpress.com/2025/09/03/new-magic-item-lepers-veil/

Byakhee for old school fantasy
https://shutteredroom.blogspot.com/2025/09/not-quite-canon-byakhee-for-old-school.html

Cozy witching campaign part 2
https://deathtrap-games.blogspot.com/2025/09/the-journal-of-agatha-fizzyflask-my.html

These Deep Halls
https://www.donjonlands.com/2021/03/these-deep-halls-or-where-to-start/

#TTRPG #MTU #Traveller #monster #MagicItem #MegaDungeon

@dentangle @evey @Natanox or more specifically an #IPv6 #MTU issue... "sudo ip6tables -I OUTPUT -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --set-mss 1350" fixes it...
will need to add this site to my IPv6 MTU test script (https://github.com/T-X/ipv6-path-mtu-discovery-verifier).

Und über @FreifunkHamburg sollte es an sich (theoretisch) dann auch keine #MTU Probleme geben können, weil wir hier im Gegensatz zur getunnelten Lösung über @freifunkMUC oder über HE die vollen 1500 bytes haben.

#news ⚡ Dax baut Gewinne am Mittag aus – MTU vorn: Der Dax hat am Dienstag nach einem freundlichen Start in den Handelstag seine Eröffnungsgewinne bis zum Mittag ausgebaut. Gegen 12:30... https://hubu.de/?p=289138 | #dax #gewinne #mittag #mtu #hubu

Gutes Jahr für MTU https://www.diebayern.de/wirtschaft/gutes-jahr-fuer-mtu-3039066?utm_source=Mastodon&utm_medium=dpa&utm_content=textlink #Industrie #MTU #Bayern #Flugzeugbau #Deutschland #Stahl #München

So for the #IPv6 #MTU issues we seemed to stumble over at @ffhl, with our asymmetric #BGP routes to/from @FreifunkHamburg / @freifunkMUC I now wrote a small bash script to test a list of websites with varying, asymmetric MTUs: https://github.com/T-X/ipv6-path-mtu-discovery-verifier/. There is a suspicious amount of #Microsoft websites for the failed tests at the bottom.
Next steps would be to add analyzing of #tcpdump captures. But in a few samples it seemed like those sites did not receive / react to our #ICMPv6 Packet Too Big

Fun Stuff: My new #internet connection does not work with #MicrosoftTeams videocalls. Sounds like a feature, but job-wise it's a bit impractical.

Some debugging showed that for just the api-emea.flightproxy.teams.microsoft.com host on v6 regular ping works, ping with bigger payload gets dropped. Every other host I tested has correctly working #MTU on v6 and v4. Connection on v4 it works fine.

What the actual... Any #network people seen this before? Bad peering at my new ISP?

#IPv6 (zumindest via #radvd) ist bei uns nun temporär deaktiviert wegen #MTU Problemen, scheinbar zu diversen #Microsoft Seiten/Diensten. Dies macht sich dadurch bemerkbar, dass insbesondere größere Dateien/Seiteninhalte hier nicht geladen werden. Zur Zeit sieht es für uns aus, als ob sich #Microsoft nicht an IPv6-Standards hält (und insbesondere ICMPv6 Packet Too Big Nachrichten unkorrekterweise ignoriert). Aber wir sind da dran, das zu klären.

Jetzt nur über IPv4 sollte es aber vorerst gehen.

L'italien Avio Aero s'associe au français Safran et à l'allemand MTU Aero Engines pour motoriser la prochaine génération d’hélicoptères militaires européens. Leur objectif est d'être en ordre de marche pour répondre conjointement, en octobre 2025, à un appel d’offres du Fonds européen de la défense pour un moteur d’hélicoptère lourd de nouvelle génération. #SAFRAN #AVIOAERO #MTU #PAS25

https://www.aerobuzz.fr/helicoptere/une-equipe-deurope-de-la-propulsion-des-futurs-helicopteres-militaires-europeens/

At @ffhl we have asymmetric #IPv6 routes, too: @ffhl -> @FreifunkHamburg -> ... -> #Microsoft. And: #Microsoft -> ... -> @freifunkMUC -> <1480 #MTU #GRE tunnel> -> @ffhl.

With network namespaces I recreated the asymmetric routes with differing MTUs on my laptop behind a DSL. I see my virtual router on my laptop send ICMPv6 Packet Too Big packets. But Microsoft keeps sending too big packets. So with that I seem to be able to recreate the issue without the Freifunk context.

So we initially had reports from @ffhl users that #Microsoft websites were broken, for instance #Minecraft didn't work. We could reproduce that `wget -6 "https://code.visualstudio.com/"` would hang here at @ffhl, while it would work on a normal home DSL.
The issue to us seems to be that Microsoft seems to ignore #ICMPv6 Packet Too Big messages. Which are essential for #IPv6 Path #MTU discovery...
Can anyone reproduce the issue? If you try it with TCP you might need to create a asymmetric routes.

Players aim to sharpen skills as BR.ICE summer hockey program kicks off second year https://www.rawchili.com/nhl/67369/ #BR.ICE #camp #Hockey #Michigan #MTU #player #practice #program #School #student #Summer #Tech #Training #University

Ist ja schön das #openVPNconnect versucht die #MTU selbst zu ermitteln, aber wenn von mir bewusst gesetzte Werte überschrieben werden und dadurch keine Verbinung zustqande kommt, dann ist es einfach nur Datenmüll! #openvpn #sslvpn #vpn #roadwarrior

I have been having Secure Shell hangs when sending/receiving bulk data (large packets) between my workstation and a WAN server. I think I've discovered bad behavior somewhere in the WAN.

I figured it out by pinging the remote host using different sized packets with the Do Not Fragment bit set. Above a certain size, one is supposed to go from receiving ping responses to getting back ICMP error packets indicating the packet was too large and that fragmentation is needed, along with the MTU size to use. This called Path MTU Discovery.

Instead of that I get three behaviors: ping response for small packets, silence for midsized packets (bad!), and error response for too-large packets.

This is really bad news, and it seems TCP just stops working if it can't get those too-large packets through.

Anyway, the WAN provider apparently autonomously rebooted their equipment, and the problem is now gone, but it has been dogging me intermittently the last several months. It's a real pain when ssh craps out when cat'ing a long file or git fetch sessions hang.

I now have the start of a tool that I can use to monitor that bad behavior is happening, though.

#networking #IP #Internet #MTU #whine #software #WAN #SecureShell #ICMP #routing

Should I Block ICMP?
http://shouldiblockicmp.com/
#ycombinator #ICMP #traceroute #blackhole #traffic #ping #NDP #SLAAC #PMTUD #IPv4 #IPv6 #MTU #MSS #PLPMTUD