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Turkish government just blocked access to YouTube after a terrorist attack - but the Vivaldi browser on my desktop still connects? (lemm.ee)

submitted 1 month ago* (last edited 1 month ago) by Lojcs@lemm.ee to c/technology@lemmy.world

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It also connects to discord, supposed to be blocked since more than a week. No other device or browser I have connects to YouTube, they all get ERR_SOCKET_NOT_CONNECTED, and only a fresh Vivaldi profile on the same pc also connects to Discord, everything else get ERR_CONNECTION_RESET.

I've tried disabling all extensions, it still connects. Checked its IP address and DNS server and they're the same as other devices/browsers. Any idea what could be going on?

Cross posted from https://lemm.ee/post/45606568 to reach as many people before they unblock it and the chance to investigate is gone

24m edit: Discord just started working on some other chromium browsers including on another device.

80m edit: Another chromium browser just also connected. After deleting browser data it stopped

edit 3: found that if I add this to the servers section of a Network Persistent State file associated with a chromium browser profile (while the browser is closed), it can connect to youtube. Can't explain why. (anonymization says https://www.youtube.com in base64):
{"alternative_service":[{"advertised_alpns":["h3"],"expiration":"13376788973168704","port":443,"protocol_str":"quic"}],"anonymization":["GAAAABMAAABodHRwczovL3lvdXR1YmUuY29tAA==",false],"server":"https://www.youtube.com","supports_spdy":true}

Edit 4: The block is over

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[–] oyenyaaow@lemmy.zip 5 points 1 month ago (3 children)

Vivaldi has TLS active by default at some point for new installs. If new profiles also have that then that's what is happening.

The browser is not using the ISP's or the computer's DNS settings. So DNS blocking/redirecting won't work on it.

[–] Lojcs@lemm.ee 1 points 1 month ago (1 children)

As I said, all my browsers are using the same dns server. This isn't a dns block

[–] oyenyaaow@lemmy.zip -1 points 1 month ago* (last edited 1 month ago) (1 children)

It doesn't really matter what kind of block it is. Vivaldi comes with TLS (Transport Layer Security overlay), but it is not necessarily turned on if its an old install. If a fresh profile has it turned on, then all traffic leaving the browser are encrypted and cannot be tampered with. you can check if it is turned on--

go to Vivaldi://flags

[–] Lojcs@lemm.ee 5 points 1 month ago* (last edited 1 month ago)

I don't think you understand. The old profile connects to youtube. New profile doesn't connect. There's no difference between the flags of both. TLS is decades old and doesn't have a flag to turn on or off. I think you mean dns over tls or dns over https, which is also widely supported at this point, and those are what all my browsers are using (and also don't have a flag to turn on or off, they're handled in settings).

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