"I want to SSH into my laptop, but I keep forgetting its IP!!"
Has this ever happened to you?
$ ping $(lookaround find-nick laptop) PING 192.168.1.101 (192.168.1.101) 56(84) bytes of data. ... $ lookaround client Found 3 peers: 11:11:11:11:11:11 = 192.168.1.101 `laptop` 22:22:22:22:22:22 = 192.168.1.102 `desktop` 33:33:33:33:33:33 = 192.168.1.103 `old-laptop`
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.
Make sure Cargo is installed from RustUp.
# Install LookAround with Cargo cargo install lookaround # Find your config directory # Prints something like `Using config dir "/home/user/.config/lookaround"` lookaround config
Create the files
server.ini in that directory
# Clients can store MAC-nickname pairs in client.ini, like a hosts file. # This is useful if your servers are short-lived and you want the clients # to be the source of truth for nicknames. [nicknames] 11-11-11-11-11-11 = laptop 22-22-22-22-22-22 = desktop
# Long-lived servers can have their nickname configured in server.ini [server] nickname = my-computer
Put this systemd unit in
[Unit] Description=LookAround [Service] ExecStart=/home/user/.cargo/bin/lookaround server Restart=always [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
- Create a shortcut to the LookAround exe
- Change the shortcut's target to end in
lookaround.exe serverso it will run the server
- Cut-paste the shortcut into the Startup folder in
Run the server manually: (To test before installing)
lookaround server --nickname my-computer
On a client computer:
# Use the `find-nick` subcommnad to find an IP... lookaround find-nick laptop # Prints `192.168.1.101` # Or ping it... ping $(lookaround find-nick laptop) # Or SSH to it... ssh user@$(lookaround find-nick laptop) # Or pull a file from it # (after starting `nc -l -p 9000 < some-file` on the laptop) nc $(lookaround find-nick laptop) 9000 # Use the `client` subcommand to find all servers in the same multicast domain lookaround client # Use a longer timeout if servers need more than 500 ms to respond lookaround client --timeout-ms 1000
Pull requests are welcome. This is a hobby project, so I may reject contributions that are too big to review.
This Git repo
This repo's upstream is https://six-five-six-four.com/git/reactor/lookaround. It's mirrored on my GitHub, https://github.com/ReactorScram/lookaround
I don't use GitHub issues, so issues are in issues.md in the repo.