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add faq section. describe how to bind to privileged ports in docker.

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Shizun Ge 2023-06-15 23:28:18 -07:00
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examples/README.md
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@ -10,10 +10,9 @@ An example how to setup endlessh-go, Prometheus, and Grafana using [docker compo
An example how to setup endlessh-go with the Maxmind GeoIP Database.
### Using privileged ports (<1024) on docker
## FAQ
### Bind to privileged ports (<1024) in a container
If you want to run the image with privileged ports (below 1025), you need to set the container user to root:
You need to add capability `NET_BIND_SERVICE` to the program.
```yml
user: root
```
If you are using docker, this can be done via cli argument [`--cap-add`](https://docs.docker.com/engine/reference/run/#runtime-privilege-and-linux-capabilities) or [`cap_add`](https://docs.docker.com/compose/compose-file/compose-file-v3/#cap_add-cap_drop) in the docker compose file.