To check if your SOCKS5 proxy is working, you can open your terminal and run the netstat command to see if there is an open port: netstat -tlnp If your SOCKS5 proxy is working, you should see an output similar to below on your terminal: tcp 0 0 232.222.333.414:8888 0.0.0.0:* LISTEN Another way to test whether SOCKS5 proxy is working is by using the curl command on the right port of the proxy. For a SOCKS5 proxy hosted at 232.222.333.414 listening at port 8080, run the following command on your terminal: timeout 5 curl -x socks5://232.222.333.414:8080 https://linode.com/ If our SOCKS5 proxy isn’t working properly on a proxy hosted at 232.222.333.414, it returns a timeout on our terminal.