<\/span><\/h3>\n\n\n\nIf you don\u2019t have Nginx installed yet, the process is quick and easy. On most Linux distributions, this one-liner in bash does the trick:<\/p>\n\n\n\n
sudo apt update && sudo apt install nginx<\/code><\/pre>\n\n\n\nOnce it\u2019s installed, you\u2019re ready to configure it for tracking bandwidth.<\/p>\n\n\n\n
<\/span>4.2 Setting Up the Stream Module<\/span><\/h3>\n\n\n\nNginx\u2019s stream module is perfect for this job because it handles raw TCP\/UDP traffic without modifying it. This means you\u2019ll get a clean, accurate log of what\u2019s going in and out.<\/p>\n\n\n\n
Here\u2019s an example configuration in nginx to get you started:<\/p>\n\n\n\n
\n
stream {<\/p>\n\n\n\n
log_format minimal '$time_local $bytes_sent $bytes_received';<\/code><\/pre>\n\n\n\n access_log \/var\/log\/nginx\/tcp_bandwidth.log minimal;<\/code><\/pre>\n\n\n\n server {<\/code><\/pre>\n\n\n\n listen 8080;<\/code><\/pre>\n\n\n\n proxy_pass your-tcp-proxy-server:port;<\/code><\/pre>\n\n\n\n proxy_buffer_size 16k;<\/code><\/pre>\n\n\n\n proxy_connect_timeout 10s;<\/code><\/pre>\n\n\n\n proxy_timeout 300s;<\/code><\/pre>\n\n\n\n }<\/code><\/pre>\n\n\n\n}<\/code><\/pre>\n<\/div>\n\n\n\nLet\u2019s break this down:<\/p>\n\n\n\n
\n- log_format minimal<\/strong>: This defines what gets logged. In our case, we\u2019re keeping it simple: the time, bytes sent, and bytes received.<\/li>\n\n\n\n
- access_log \/var\/log\/nginx\/tcp_bandwidth.log minimal<\/strong>: This tells Nginx to store the logs in \/var\/log\/nginx\/tcp_bandwidth.log using the minimal format we just defined.<\/li>\n\n\n\n
- server block<\/strong>:\n
\n- listen 8080<\/strong>: This is the port where Nginx will listen for incoming traffic.<\/li>\n\n\n\n
- proxy_pass your-tcp-proxy-server:port<\/strong>: Replace your-tcp-proxy-server:port with the actual address and port of your proxy provider.<\/li>\n\n\n\n
- proxy_buffer_size 16k<\/strong>: Sets the buffer size for data packets.<\/li>\n\n\n\n
- proxy_connect_timeout 10s<\/strong> and proxy_timeout 300s<\/strong>: These control connection and overall timeouts.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n
<\/span>Save and Test Your Configuration<\/strong><\/span><\/h4>\n\n\n\n\n- Save the configuration file. Typically, this is located at \/etc\/nginx\/nginx.conf.<\/li>\n\n\n\n
- Test in bash that your Nginx configuration is valid:<\/li>\n<\/ol>\n\n\n\n