Proxy checker

Usage

Cmd line help

Usage of ./proxy-checker:
  -i string
    	Path to file with proxies. (default "proxies.json")
  -o string
    	Path to file with checked json. (default "proxies.checked.1673272869.json")

Proxy file format

[
  {
    "ip": "185.43.249.132",
    "port": 39316,
    "protocol": "socks4"
  }
]