Network Usage tools for Linux Servers

Here are some popular network usage tools for Linux:

1. iftop:

   • Displays bandwidth usage on an interface by host.
   • Real-time network bandwidth monitoring.

2. nload:

   • A console application that monitors network traffic and bandwidth usage in real time.
   • Displays incoming and outgoing traffic separately.

3. bmon:

   • A bandwidth monitor and rate estimator.
   • Can monitor multiple interfaces simultaneously.

4. vnStat:

   • A network traffic monitor for Linux that keeps a log of network traffic for selected interfaces.
   • Collects and displays bandwidth usage statistics over time.

5. nethogs:

   • Displays bandwidth usage per process.
   • Helps identify which applications are using the most bandwidth.

6. iptraf:

   • A console-based network statistics monitoring utility.
   • Provides real-time statistics for IP traffic.

7. dstat:

   • A versatile resource statistics tool.
   • Combines the capabilities of vmstat, iostat, netstat, and ifstat.

8. netstat:

   • Displays network connections, routing tables, interface statistics, masquerade connections, and multicast memberships.
   • Useful for network troubleshooting and monitoring.

9. ss:

   • Utility to investigate sockets.
   • Can display more detailed information about network connections than netstat.

10. cbm (Color Bandwidth Meter):

    • Displays current traffic for network interfaces.
    • A lightweight tool that uses a text-based user interface.

11. wireshark:

    • A network protocol analyzer.
    • Captures and interactsively browses traffic running on a computer network.

12. tcpdump:

    • A powerful command-line packet analyzer.
    • Captures and displays the packets transmitted or received over a network.

13. iperf/iperf3:

    • A tool for active measurements of the maximum achievable bandwidth on IP networks.
    • Used for network performance tuning and testing.

14. glances:

    • An all-in-one monitoring tool.
    • Provides a comprehensive view of system information including network usage.

These tools can help you monitor, diagnose, and optimize network usage on your Linux system.