Karsten,

Thanks for your answer!

Out of your head, were there any significant changes in TCP/TLS on 5.4 -> 5.5 change?

Regards,
Igor

Le 22.06.2022 à 18:11, Karsten Horsmann a écrit :
Hi Igor,

I also use CentOS 7 with the same openssl version and between 1000 up to 2000 tls/wss connections.

Works for me. Main difference I use Kamailio 5.5.x

Kind regards
Karsten Horsmann

Igor Olhovskiy <[email protected]> schrieb am Mi., 22. Juni 2022, 10:36:

    Hello!

    Due to I still experience irregular Kamailio 5.4 crashes (like
    1/month) related to SSL (using websockets and SIPS) I'm wondering,
    could openSSL upgrade change the situation?
    As of now in CentOS 7 I have 1.0.2k version.

    Does anyone have experience to fix crash-related to TLS problems
    with openSSL upgrade?

    Or maye some tuneup of TCP parameters can help here?My current
    setup is quite simple:

    children=4
    enable_tls=yes
    tcp_accept_no_cl=yes
    tcp_connection_lifetime=600
    tcp_max_connections=998976 # 1000000 - 1024, so we're leaving 1k
    for system reserve
    tls_max_connections=998976

    Number of clients ~ 200 constantly connected to websocket.
-- Best regards,
    Igor
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