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Move Certificates to Zoraxy
Let say you have another reverse proxy server running and you want to switch over to Zoraxy due to some bugs that they never resolve or you just wanna try out Zoraxy, here is the short guide on how to migrate your certificates to Zoraxy.
- Stop Zoraxy (e.g.
sudo systemctl stop zoraxyor just close the terminal window if you are running on Windows) - Copy all the certificates previously generated by another reverse proxy server into your certs folder. The certs folder are usually located in
/conf/certs/ - Rename your certs according to the Certificate Naming Scheme below
- Start Zoraxy (e.g.
sudo systemctl start zoraxy)
The certificates should be in .key and .pem file extensions. The key file is the private key and the pem file is the public key.
For the filename of the key files, make sure your private key and public key have the same filename and the filename matches your host name in HTTP proxy rule. For example, you have a HTTP proxy rule that route example.com, you should name your key-pairs for this route as
example.com.key
example.com.pem
If you have a wildcard certificate and want to use them for multiple HTTP proxy rule, you can use the longest common suffix of both rules as the filename of the key-pairs. For example, you have two HTTP proxy rule that route a.example.com and b.example.com, and you have a certificate that covers *.example.com, you can name the key-pairs as follows.
example.com.key
example.com.pem
The same rules goes for 3 / 4 level sub-domains. For example, a.server.example.com and b.server.example.com with a certificate that covers *.server.example.com, you can name your certificates as follows.
server.example.com.key
server.example.com.pem
If you have a SAN certificates that contain multiple host-name in the CN field, you can name it to the any of the hostname in the CN field. For example, you have a certificate that covers mydomain.com , example.com and anotherdomain.com, where most of your traffic come from mydomain.com, you can name your certificates as follows.
mydomain.com.key
mydomain.com.pem
Once Zoraxy cannot get a direct hit on searching the registered certificate, it will start checking if which certificates contains a CN host-name that matches the current SNI provided hostname. Generally speaking, you can name it to anything you want. For high traffic sites, although there are cache and in-memory lookup map in place, it would still save a bit CPU cycles if you use the first / most commonly used hostname as the filename.
You can create a json file with the same name of the certificates to hints the ACME module what CA to use during renewing the certificate. Assuming you have example.com.key and example.com.pem key-pairs, you can create and edit example.com.json and add the following contents
{"acme_name":"Let's Encrypt","acme_url":"","skip_tls":false}
If this file didn't exists, the ACME module will use the system default CA for renewing the certificate. A list of ACME names can be found in the ACME Tool dropdown. If you have a custom CA, you can also fill in the URL for the CA and set to skip TLS check if required.