Looking at the curl output, it manages to connect using IPv6 and is timing out on the SSL negotiation.

Few things to check:

- Does this work for you with IPv4?

- Can you use "openssl s_client" to see if your environment manages to finish the SSL handshake?

- Can you try to connect from inside a Docker container that is using a different base distro?

--

Lior

---- On Tue, 09 Jan 2024 13:17:23 +0200 Rabin Yasharzadehe <rabin@rabin.io> wrote ---

Hi list,

Can you please help me identify if the issue, is in my end / ISP (Bezeq)

and not the service it self.

When I try to load telegram web, with IPv6 address, the connection will hang for me.

❯ curl --connect-timeout 3 -Iv6 https://web.telegram.org/
* processing: https://web.telegram.org/
*   Trying [2001:67c:4e8:f004::9]:443...
* Connected to web.telegram.org (2001:67c:4e8:f004::9) port 443
* ALPN: offers h2,http/1.1
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
*  CAfile: /etc/pki/tls/certs/ca-bundle.crt
*  CApath: none
* SSL connection timeout
* Closing connection
curl: (28) SSL connection timeout

But I don't have this issue with other IPv6 services, like google.com

Can you please check on your side? and which ISP are you using?

Thanks. Regards

--
Rabin

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