DOcument --allow-odoh-post

This commit is contained in:
Frank Denis 2021-06-07 14:42:16 +02:00
parent eebd6b8356
commit ece8a445cb

View file

@ -116,6 +116,11 @@ This proxy supports ODoH termination (not relaying) out of the box.
However, ephemeral keys are currently only stored in memory. In a load-balanced configuration, sticky sessions must be used.
Currently available ODoH relays only use `POST` queries.
So, `POST` queries have been disabled for regular DoH queries, accepting them is required to be compatible with ODoH relays.
This can be achieved with the `--allow-odoh-post` command-line switch.
## Operational recommendations
* DoH can be easily detected and blocked using SNI inspection. As a mitigation, DoH endpoints should preferably share the same virtual host as existing, popular websites, rather than being on dedicated virtual hosts.