what

...is taking up my bandwidth?!

demo

This is a CLI utility for displaying current network utilization by process, connection and remote IP/hostname

How does it work?

what sniffs a given network interface and records IP packet size, cross referencing it with the /proc filesystem on linux or lsof on MacOS. It is responsive to the terminal window size, displaying less info if there is no room for it. It will also attempt to resolve ips to their host name in the background using reverse DNS on a best effort basis.

Installation

Arch Linux

yay -S what

MacOS and other Linux flavours

cargo install what

Windows is not supported at the moment - if you'd like to contribute a windows port, it would be very much welcome.

Usage

``` USAGE: what [FLAGS] --interface

FLAGS: -h, --help Prints help information -n, --no-resolve Do not attempt to resolve IPs to their hostnames -r, --raw Machine friendlier output -V, --version Prints version information

OPTIONS: -i, --interface The network interface to listen on, eg. eth0 ```

Note that since what sniffs network packets, it requires root privileges - so you might want to use it with (for example) sudo.

raw_mode

what also supports an easier-to-parse mode that can be piped or redirected to a file. For example, try: what -i eth0 --raw | grep firefox

Contributing

Contributions of any kind are very welcome. If you'd like a new feature (or found a bug), please open an issue or a PR.

License

MIT