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We Mass-Deployed 15-Year-Old Screen Sharing Technology and It's Actually Better (blog.helix.ml)

submitted 2 days ago by cm0002@mander.xyz to c/programming@programming.dev

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[–] atzanteol@sh.itjust.works 16 points 1 day ago (3 children)

UDP — Blocked. Deprioritized. Dropped. “Security risk.”

It's this actually a thing? I've never seen any corporate network that blocks UDP. HTTP/3 will even rely on it.

[–] The_Decryptor@aussie.zone 4 points 1 day ago

Yep, same way people block all ICMP and then wonder why stuff breaks.

[–] StripedMonkey@lemmy.zip 3 points 1 day ago

Yes. Quic and other protocols are too new and don't have a ton of support in firewall and inspection tools that are used by said corpos. It's even required in the DISA STIG requirements to disable quic at the browser level.

[–] moonpiedumplings@programming.dev 2 points 1 day ago

Yes. My high school used to do this. UDP blocked except for DNS to some specific servers, and probably some other needed things.