#SSH #CLI #utilities #Github #keys

app keysync

A utility to sync local authorized_keys file updated with your with Github, Gitlab, and Launchpad public keys

7 releases (4 stable)

new 3.0.2 Jan 13, 2021
3.0.0 Dec 6, 2020
2.0.0 Oct 22, 2020
0.1.4 Oct 13, 2020

#120 in Command line utilities

29 downloads per month


1.5K SLoC

keysync - An SSH syncing utility and service

CI CD Crates.io Crates.io

keysync is a command line utility and service to help keep your local authorized_keys file synced to a master copy of public keys. The program allows syncing from Github, Gitlab, Launchpad at the moment, custom url support is coming soon. It downloads and filters only keys that you don't already have a local copy of. This application can be used for either as one time sync when run, or running automatically in the background as a systemd service. You can have the file it updated at a preset interval or a custom cron expression, you can even support multiple users and providers.

Note: Automatic jobs will fail if the computer goes to sleep/hibernate. The systemd daemon is recommeded primarily for servers. For personal computers it is recomended to just run the command manually whenever you add public keys.

Warning If you're Github, Gitlab or Launchpad is comprmised an attacker can upload their keys to gain access to you're computer. For security please do not set this program up for a root user, you're just asking for trouble.


Install latest deb from releases.
cargo install keysync.
More releases coming soon.


keysync 3.0.1
Ethan Budd <budde25@protonmail.com>
A utility to sync local authorized_keys file updated with your with Github, Gitlab, and Launchpad public keys

    keysync [FLAGS] <SUBCOMMAND>

    -h, --help       Prints help information
    -V, --version    Prints version information
    -v               Verbose mode (-v, -vv, -vvv)

    daemon    Runs job daemon in background (No need to run, systemd will manage for you)
    get       Retrieves a key from an online source
    help      Prints this message or the help of the given subcommand(s)
    jobs      List enabled job(s)
    remove    Remove job(s) by ID
    set       Add an automatic job

Use keysync help <subcommand> for help with that subcommand.

keysync get <username> Downloads the public keys from github for the username.
keysync get --gitlab <url> <username> Downloads the public keys from gitlab for the username, a url must be provided or '' for https://gitlab.com.
keysync set <username> <schedule> Adds automatic job for the user, where username is the Github or Gitlab username.
Valid schedules are [Hourly, Daily, Weekly, Monthly, Custom]
keysync set <username> custom -c <cron> Adds automactic job for user with custom cron schedule.


  • Install Rust
  • Clone repository

Compile and Run

cargo build Will build an executable.
cargo run -- <args> Will build and run an executable.
cargo doc Will build the documentation.

Install for Debian

cargo install cargo-deb To install install the deb packager.
cargo deb --install will install the binary and systemd service.


cargo test Will run all the unit tests except for the ignored ones, ignored because they use network and won't pass 100% reliably.
cargo test -- --ignored Will run all the tests, some may fail depending on server response time and your internet capabilities.

Built With



GNU General Public License v3.0


Ethan Budd


~515K SLoC