So let’s say you have three friends who all want to use your Shadowsocks server for their own personal browsing needs. Instead of having them all set up their own individual accounts and configurations, you can just add them as users in this tool and assign them a certain amount of data usage each month (or whatever timeframe you prefer).

Here’s how it works: first, you need to download the program from its website or GitHub page. Once you have it installed on your computer, open it up and click “Add User” to create a new account for one of your friends. You’ll be prompted to enter their username (which can be anything you want), password (optional but recommended), and data usage limit (in megabytes).

Next, you’ll need to configure the Shadowsocks server itself by setting up port forwarding on your router or firewall. This will allow incoming traffic from your friend’s device to reach your computer and be encrypted before being sent out onto the internet. You can also set up DNS redirection if you want, which will make it look like all of their web requests are coming from your own IP address instead of theirs (this is useful for privacy reasons).

Once everything is set up, your friend should be able to connect to your Shadowsocks server using the username and password you provided them. They’ll need to install a compatible client on their device (such as Shadowsocks or Clash), which will allow them to encrypt all of their internet traffic through your server.

As for controlling data usage, this tool allows you to set up monthly limits for each user based on the amount of megabytes they’re allowed to use. If a user exceeds their limit, they’ll be automatically disconnected from the Shadowsocks server until the next month (or whatever timeframe you prefer). This is useful if you have limited bandwidth or want to ensure that everyone gets an equal share of your resources.

Overall, this tool is great for managing multiple users and controlling data usage on a Shadowsocks server. It’s easy to use, customizable, and can be set up in just a few minutes. So if you have friends who need access to your VPN but don’t want to deal with the hassle of setting it up themselves, this is definitely worth checking out!