LookAround

"I want to SSH into my laptop, but I keep forgetting its IP!!"

Has this ever happened to you?

LookAround is a Rust program for looking up your computers' MAC and IP addresses within a LAN. There's no central server, so it's not a look-up, it's a look-around.

$ lookaround client

Found 3 peers:
11:11:11:11:11:11 = 192.168.1.101:9040
22:22:22:22:22:22 = 192.168.1.102:9040
33:33:33:33:33:33 = 192.168.1.103:9040

The LookAround client uses IP multicast to find LookAround servers within the same multicast domain.

MAC addresses change slower than IP addresses, so if you know that 11:11:11:11:11:11 is your laptop, and your laptop is running LookAround, LookAround will find the IP for you.

Installation

Use the Cargo package manager from Rust to install LookAround.

cargo install lookaround

To run the server as a normal user all the time, put this systemd unit in ~/.config/systemd/user/lookaround.service:

[Unit]
Description=LookAround

[Service]
ExecStart=/home/user/.cargo/bin/lookaround server

[Install]
WantedBy=default.target

Then start the service, check that it's running okay, and enable it for auto-start:

systemctl --user start lookaround
systemctl --user status lookaround
systemctl --user enable lookaround

Usage

Run the server manually: (If you haven't installed it with systemd yet)

lookaround server

Run a client to ping all servers in the same multi-cast domain:

lookaround client

Contributing

Pull requests are welcome. This is a hobby project, so I may reject contributions that are too big to review.

Use the kazupon Git commit message convention

License

AGPL-3.0

This Git repo

This repo's upstream is https://six-five-six-four.com/git/reactor/lookaround.

I don't use GitHub issues, so issues are in issues.md in the repo.