Dante consists of a SOCKS server and a SOCKS client, implementing RFC 1928 and related standards. It can in most cases be made transparent to clients, providing functionality somewhat similar to what could be described as a non-transparent Layer 4 router. For customers interested in controlling and monitoring access in or out of their network, the Dante SOCKS server can provide several benefits, including security and TCP/IP termination (no direct contact between hosts inside and outside of the customer network), resource control (bandwidth, sessions), logging (host information, data transferred), and authentication.
$ docker run -d -p 1080:1080 ddsalvatore/docker-dante
Change its configuration by mounting a custom /etc/sockd.conf
(see sample config files).
Set your browser or application to use SOCKS v4 or v5 proxy localhost on port 1080,
like for example:
$ curl --proxy socks5://localhost:1080 https://example.com
... or set to use PAC script like:
function FindProxyForURL(url, host) {
return "SOCKS localhost:1080";
}
The default config in this image allows everyone to use the proxy. You can add a simple authentication (which will send data unencrypted) by setting up a Dockerfile like:
FROM wernight/dante
# TODO: Replace 'john' and 'MyPassword' by any username/password you want.
RUN printf 'MyPassword\nMyPassword\n' | adduser john
Uncomment line in sockd.conf:
socksmethod: username
Then use SOCKS v5, for example:
$ curl --proxy socks5://john:MyPassword@localhost:1080 https://example.com
Note: SOCKS v4 will be blocked.
WARNING: Many browsers do not support SOCKS authentication (e.g. see this Chrome bug).