Hi Karsten,

interesting scenario, thanks. Regarding TLS off-loading its of course less 
useful then.

Cheers,

Henning

--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>

From: Karsten Horsmann <[email protected]>
Sent: Dienstag, 15. August 2023 20:24
To: Kamailio (SER) - Users Mailing List <[email protected]>
Subject: [SR-Users] Re: Kamailio behind TLS-TCP load balancer

Hi,

an benefit from using the AWS loadbalancer is the included DDOS prevention. 
Jonas Swiatek gave that as tipp to me.

He simple setup self-signed certs on the Kamailio behind the NLB loadbalancer.
So it's

Internet -> TLS NLB/AWS loadbalancer -> TLS self-signed Kamailio.

Should solve your problems.

Kind regards
Karsten Horsmann
Henning Westerholt <[email protected]<mailto:[email protected]>> schrieb am Sa., 
12. Aug. 2023, 11:09:
Hello David,

the simplest way is of course to just not use the AWS load-balancer. πŸ˜‰ Do you 
have performance concerns using Kamailio for that purpose?

As you probably know, SIP as a protocol is not really suited for this kind of 
cloud balancing infrastructure, which targets more HTTP and other protocols. 
And Kamailio in a load-balancer scenario is usually the first TLS/TCP/UDP 
endpoint to reach from the client point of view.

Cheers,

Henning

--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>

From: David Villasmil 
<[email protected]<mailto:[email protected]>>
Sent: Samstag, 12. August 2023 02:55
To: Kamailio (SER) - Users Mailing List 
<[email protected]<mailto:[email protected]>>
Subject: [SR-Users] Kamailio behind TLS-TCP load balancer

Hello all,

I’m having lots of problems when trying to configure Kamailio behind an AWS tls 
load balancer to offload tls and receive on tcp on Kamailio. Everything else 
inside is UDP.
I found I need to manually add record-route presets every time and invite comes 
in. And when trying to forward an ACK to the client via tls/tcp load balancer 
Kamailio complaint the socket is not TLS so it fails.

Is there a simpler way of doing this via some parameters I don’t know?

Thanks for helping me with this!

David
--
Regards,

David Villasmil
email: [email protected]<mailto:[email protected]>
phone: +34669448337
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