* To make an open proxy you can use `ALLOW_ALL=1`
* Alternatively you can have an unlimited number of `ALLOW_HOST_<anything>=<host>`
* If you choose to specify a list of allowed hosts you can use DNS names or IP addresses
* To make an open proxy you can use `ALLOW_ALL=1`
* Alternatively you can have an unlimited number of `ALLOW_HOST_<anything>=<host>`
* If you choose to specify a list of allowed hosts you can use DNS names or IP addresses