I’m having an interesting phenomenon happening with throughput on a locally-hosted speedtest server.
I have a librespeed speedtest server running in a docker container on my Synology nas (DS920+). I also have pfSense running HAproxy on a home-built router. All of my connectivity is set up the way I like it (took me a while to get it all straight but I’m happy with it now). It’s running great, but there’s a funny throughput issue I’ve run into:
If I browse (internally) to the speedtest server directly by IP:Port and run a test, I get a symmetrical 1 Gbps up/down.
If I browse (internally) to the speedtest server by speed.“domain”.com, routing through the HAProxy, I get nearly exactly 100 Mbps both up and down.
I thought there was some sort of throughput limiting going on with HAProxy or something but then:
I opened the firewall up to external access then browsed (from a very speedy external network) to speed.“domain”.com through the pfSense/HAProxy where I was able to get 10 Mbps down/ 230 Mbps up (which matches my ISP rates speeds exactly). This proves that HAproxy is able to keep up with my true internet speed when accessing the speedtest from an external network.
Why do I get so limited when browsing through HAProxy from the same network?
Other info: I do have DNS Host Overrides configured for the speed.“domain”.com address, pointing at the HAProxy Virtual IP.