Useful Cloudflare infos

Trying to set up CloudFlare Access and it seems that some information are hard to find:

  • The tunnel communicates over 7844/udp (important in case you want/have a restrictive firewall and/or your cloud provider requires to configure the node-independent firewall)
  • The authenticated user is specified by the Cf-Access-Authenticated-User-Email header. Other useful headers can be Cf-Connecting-Ip or Cf-Ipcountry.
  • To link the authentication with the tunnel you desire, simply configure the “Self-hosted application” on the same (sub)domain as the tunnel.

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