Full-featured traffic analyzers for Linux systems such as ntop and vnstat are widely available, but sometimes you just want a simple program that gives you fast, basic information about the amount of traffic going in and out of the hosts on your network. Darkstat, a packet sniffer that runs as a background process, fills that role. It gathers statistics about network usage and displays them over HTTP. It's an important security practice to know what traffic is going in and out of your network. Have you looked at your network traffic lately?

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