This is a CLI utility for displaying current network utilization by process, connection and remote IP/hostname
bandwhich
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.
yay -S bandwhich
bandwhich
is available in nixpkgs
, and can be installed, for example, with nix-env
:
nix-env -iA nixpkgs.bandwhich
cargo install bandwhich
This installs bandwhich
to ~/.cargo/bin/bandwhich
but you need root priviliges to run bandwhich
. To fix that, there are a few options:
- Give the executable elevated permissions:
sudo setcap cap_net_raw,cap_net_admin=+ep ~/.cargo/bin/bandwhich
- Run
sudo ~/.cargo/bin/bandwhich
instead of justbandwhich
- Create a symlink:
sudo ln -s ~/.cargo/bin/bandwhich /usr/local/bin/
(or another path on root's PATH) - Set root's PATH to match your own
sudo env "PATH=$PATH" bandwhich
- Pass the desired target directory to cargo:
sudo cargo install bandwhich --root /usr/local/bin/
If you're on linux, you could also get the generic binary from the releases.
Unfortunately, windows is not supported at the moment - if you'd like to contribute a windows port, it would be very much welcome.
USAGE:
bandwhich [FLAGS] [OPTIONS]
FLAGS:
-h, --help Prints help information
-n, --no-resolve Do not attempt to resolve IPs to their hostnames
-r, --raw Machine friendlier output
-V, --version Prints version information
OPTIONS:
-i, --interface <interface> The network interface to listen on, eg. eth0
Note that since bandwhich
sniffs network packets, it requires root privileges - so you might want to use it with (for example) sudo
.
On Linux, you can give the bandwhich
binary a permanent capability to use the required privileges, so that you don't need to use sudo bandwhich
anymore:
sudo setcap cap_net_raw,cap_net_admin=+ep "$HOME/.cargo/bin/bandwhich"
bandwhich
also supports an easier-to-parse mode that can be piped or redirected to a file. For example, try:
bandwhich --raw | grep firefox
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.
To set up your development environment:
- Clone the project
cargo run
, or if you prefercargo run -- -i <network interface name>
(you can often find out the name withifconfig
oriwconfig
). You might need root privileges to run this application, so be sure to use (for example) sudo.
To run tests: cargo test
Note that at the moment the tests do not test the os layer (anything in the os
folder).
If you are stuck, unsure about how to approach an issue or would like some guidance, you are welcome to contact: aram@poor.dev
MIT