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nwaku/docs/operators/how-to/configure-websocket.md

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Configure websocket transport

Websocket is currently the only Waku transport supported by browser nodes using js-waku. Setting up websocket enables your node to directly serve browser peers.

A valid certificate is necessary to serve browser nodes, you can use letsencrypt:

sudo letsencrypt -d <your.domain.name>

You will need the privkey.pem and fullchain.pem files.

To enable secure websocket, pass the generated files to wakunode2: Note, the default port for websocket is 8000.

wakunode2 --websocket-secure-support=true --websocket-secure-key-path="<letsencrypt cert dir>/privkey.pem" --websocket-secure-cert-path="<letsencrypt cert dir>/fullchain.pem"

Self-signed certificates

Self-signed certificates are not recommended for production setups because:

  • Browsers do not accept self-signed certificates
  • Browsers do not display an error when rejecting a certificate for websocket.

However, they can be used for local testing purposes:

mkdir -p ./ssl_dir/
openssl req -x509 -newkey rsa:4096 -keyout ./ssl_dir/key.pem -out ./ssl_dir/cert.pem -sha256 -nodes
wakunode2 --websocket-secure-support=true --websocket-secure-key-path="./ssl_dir/key.pem" --websocket-secure-cert-path="./ssl_dir/cert.pem"