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Update README for DHParam default size

This commit is contained in:
Thibault Soubiran 2020-12-06 19:09:55 +01:00
parent aba100ff7b
commit 8d0ab90536

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@ -218,7 +218,7 @@ at startup. Since it can take minutes to generate a new `dhparam.pem`, it is do
background. Once generation is complete, the `dhparam.pem` is saved on a persistent volume and nginx
is reloaded. This generation process only occurs the first time you start `nginx-proxy`.
> COMPATIBILITY WARNING: The default generated `dhparam.pem` key is 2048 bits for A+ security. Some
> COMPATIBILITY WARNING: The default generated `dhparam.pem` key is 4096 bits for A+ security. Some
> older clients (like Java 6 and 7) do not support DH keys with over 1024 bits. In order to support these
> clients, you must either provide your own `dhparam.pem`, or tell `nginx-proxy` to generate a 1024-bit
> key on startup by passing `-e DHPARAM_BITS=1024`.
@ -226,7 +226,7 @@ is reloaded. This generation process only occurs the first time you start `ngin
In the separate container setup, no pregenerated key will be available and neither the
[jwilder/docker-gen](https://hub.docker.com/r/jwilder/docker-gen) image nor the offical
[nginx](https://registry.hub.docker.com/_/nginx/) image will generate one. If you still want A+ security
in a separate container setup, you'll have to generate a 2048 bits DH key file manually and mount it on the
in a separate container setup, you'll have to generate a 2048 or 4096 bits DH key file manually and mount it on the
nginx container, at `/etc/nginx/dhparam/dhparam.pem`.
#### Wildcard Certificates
@ -268,7 +268,7 @@ and the [AWS ELB Security Policies](https://docs.aws.amazon.com/elasticloadbalan
`AWS-TLS-1-2-2017-01`, `AWS-TLS-1-1-2017-01`, `AWS-2016-08`, `AWS-2015-05`, `AWS-2015-03` and `AWS-2015-02`.
Note that the `Mozilla-Old` policy should use a 1024 bits DH key for compatibility but this container generates
a 2048 bits key. The [Diffie-Hellman Groups](#diffie-hellman-groups) section details different methods of bypassing
a 4096 bits key. The [Diffie-Hellman Groups](#diffie-hellman-groups) section details different methods of bypassing
this, either globally or per virtual-host.
The default behavior for the proxy when port 80 and 443 are exposed is as follows: