Question

Self Signed Cert behind Digital Ocean Load Balancer

If I use the SSL Termination on the DO load balancer, but my app also requires SSL, can I run with a self signed certificate and the load balance accept that?


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Bobby Iliev
Site Moderator
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April 21, 2024

Hi there,

When load balancing encrypted web traffic, there are two main configuration choices:

  • SSL termination, which decrypts SSL requests at the load balancer and sends them unencrypted to the backend via the Droplets’ private IP addresses.

  • SSL passthrough, which sends encrypted SSL requests directly to the backend, via the Droplets’ private IP addresses. This secures the traffic between the load balancers and the backend servers.

If your backend services needs receive encrypted traffic, you would need to setup SSL passthrough. In this case, what you could do is, instead of using a self-signed certificate, you can use a Let’s Encrypt SSL certificate:

Certbot’s Getting certificates

https://www.digitalocean.com/community/tutorials/how-to-secure-nginx-with-let-s-encrypt-on-ubuntu-20-04

Let me know if this works for you!

Best,

Bobby

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