Modbus ist unsterblich? 
Vorab allen ein gesundes und erfolgreiches 2026 🍀.
 
Totgeglaubte leben länger? Modbus dürfte wohl eines der ältesten Protokolle der Gebäudeautomation sein und hat wie viele Bus-Systeme auch den Sprung in die IP-Welt geschafft.
#Modbus #DataCenter #Rechenzentrum #Monitoring #MQTT #BACnet

https://www.linkedin.com/posts/smitscherlich_modbus-ist-unsterblich-vorab-allen-ein-activity-7412839982484221953-OR2l

Анатомия левиафана: как работают ЦОДы и в чём разница между Tier

Для рядового пользователя ЦОД — это место, где хранятся фотографии и обрабатываются запросы ИИ-помощников. Однако это сложнейший инженерный организм, функционирующий на стыке термодинамики, электротехники, гидравлики и цифровой логики. Под катом попробую за одну статью объяснить вам логику работы дата-центров и рассказать, что вообще означают магические Tier. Читать

https://habr.com/ru/companies/ruvds/articles/969050/

#ЦОД #датацентр #центр_обработки_данных #tier #топология_N #ИБП #ruvds_статьи #modbus #bacnet #bms

The Web of Things can work with multiple protocols via the bindings, such as #http , #mqtt , #bacnet or even old protocols like #modbus .

Some of these protocols split the information into different channels (headers, body, URI variables and other protocol parameters).
One question left is how to map the logical information into each of them.

If you are curious, join the WoT WG and take part in the discussion⬇️

https://www.w3.org/groups/wg/wot/instructions/

BLIIoT HVAC Samrt Building BACnet/IP Ethernet Distributed Edge IO Module BL207

#iot #iotsolutions #smartbuildings #hvac #smartparking #bacnet #io #iomodule #datacollection #remotemonitoring #edgecomputing

https://www.bliiot.com/bacnet-ip-io-module-p00397p1.html

ICYMI check out my BACNet basics with @zeek How-To video:

https://www.youtube.com/watch?v=C1y6UY_ithk

Be sure to subscribe for more videos!

https://www.youtube.com/channel/UC-GWNw5rvGgjjV0OaOqcdfQ?sub_confirmation=1

#bacnet #zeek #ics

Durch eine komplexe Vernetzung von Fensterkipp- und schließsystemen mit Zentralheizungen einerseits sowie CO2-Messgeräten andererseits könnte #BACnet- oder #IoT-Technologie zzt. nicht nur zur Energieeinsparung, sondern auch zur Optimierung des Raumklimas in Innenräumen beitragen.

#BACnet Secure Connect is officially out and clause 24 (Network Security) deprecated https://www.ashrae.org/technical-resources/standards-and-guidelines/standards-addenda/standard-135-2016-bacnet-a-data-communication-protocol-for-building-automation-and-control-networks

@Fr1t2 also all packets are transported via UDP with 0 authentication.

seriously #BACnet is a hot mess

. @Fr1t2 found a #shmoocon video from 2013 discussing the vulnerable protocol with discussion of some python scripts to help pentest #BACnet, but alas no love with my searches. it appears this never went public.

certainly interesting at least that there is some interest in this attack vector. strange there is so little work being done here, publicly.

I've recently been awarded the pleasure of overseeing the technology upgrade of an HVAC control system from #iLON over to the #BACnet protocol in a large scale building.
Any one in the fediverse have any experiance dealing with the security (or lack there of) in the open protocol. from a quick search I find a few metasploit payloads available, but it seem like there is such low hanging fruit there is no need to exploit. just plug in and own the system.

Am I crazy? (rhetorical question, I am)