Geolier

Geolier is an utility to configure a backup server and create backup clients in a jail using JailKit

Quick Start

Imagine you have several servers to backup, each may or may not be owned by differents clients, you may want to store backup remotely to improve redondancy, in this case, you need to create one access for each servers, on the same server.

It means that if one of the server is compromised, all others backups on the server may be too.

So here is the trick, put each users in a jail, with a minimal set of commands, just enough to properly handle received backups no matter how it is used (scp, sftp, piped ssh, remote tar, etc.)

Table of contents

1. Installation
2. Getting started
3. Usage
4. Contributing
5. Requirements
6. Authors
7. License

Description

Geolier is an utility to configure a backup server and create backup clients in a jail using JailKit

Installation

Getting started

Usage

usage: ./geolier <command> [-h] [-vvv] [-d] [<args>]

Currently supported commands are:
    create [<username>] Create a new backup user and its jail
    delete [<username>] Remove a backup user and its jail (including its data)
    install             Install jailkit

• -v set the level of verbosity (more v, more verbose)
• -d dry-run, do not actually run commands

Examples:

geolier create

root@b01:~# ./geolier create -v -d backup_user
-> useradd -m -N -g backup -s /usr/sbin/jk_chrootsh backup_user
-> mkdir /srv/jails/backup_user
-> chown root:root /srv/jails/backup_user
-> jk_init -v -j /srv/jails/backup_user basicshell editors extendedshell netutils ssh uidbasics jk_lsh scp custom
-> jk_jailuser -m -j /srv/jails/backup_user backup_user
-> sed -E -i s/(^backup_user:.*:).*$/\1\/bin\/bash/ /srv/jails/backup_user/etc/passwd
-> ssh key fingerprint: (de:cf:7c:1e:85:05:ea:ce:e4:c0:6c:b3:43:7f:78:1a)
-> mkdir /srv/jails/backup_user/home/backup_user/.ssh/
-> mv /tmp/tmp.4dwnfMMy0n /srv/jails/backup_user/home/backup_user/.ssh/authorized_keys
-> chown -R backup_user /srv/jails/backup_user/home/backup_user/.ssh
-> chmod 500 /srv/jails/backup_user/home/backup_user/.ssh/
-> chmod 600 /srv/jails/backup_user/home/backup_user/.ssh/authorized_keys

Contributing

1. Take a look at the list of issues.
2. Fork
3. Write a test (for either new feature or bug)
4. Make a PR

Requirements

• bash >= 4
• common build tools (gcc, etc.), required to build JailKit

Authors

Boris Guéry - guery.b@gmail.com - http://borisguery.com - @borisguery

License

Geolier is licensed under the MIT License - see the LICENSE file for details