Tarbit is a tcp tarpit written in ruby. It can slow down automated ssh/http/tcp "attacks" or bot connections. It is designed to consume a very little amount of cpu and memory. Tarbit can also generate statistic images.
"Red Wood Cutting", Vladimir Kush
Tarbit is heaviliy inspired by endlessh, the python version, feel free to take a look: https://nullprogram.com/blog/2019/03/22/
gem install tarbit
You can now run tarbit manually (you can also omit the default params):
The interval option marks the seconds until the statistics are written to disk.
tarbit serve --port 22 --interval 1800
Create a systemd service
Verify your tarbit executable: (change the path bin to wrapper within the systemd ExecStart )
which tarbit
[Unit]
Description=Tarbit - ruby ssh tarpit
[Service]
Type=simple
ExecStart=/usr/local/rvm/gems/ruby-2.6.5/wrappers/tarbit serve
AmbientCapabilities=CAP_NET_BIND_SERVICE
[Install]
WantedBy=multi-user.targetCreate a cron job for making statistic snapshots:
Again make sure the path has changed bin with wrapper
* */2 * * * /usr/local/rvm/gems/ruby-2.6.5/wrappers/tarbit snapshot
It is recommended to cleanup the statistics folder. You can use a cron job too. (It will remove all statistics every 12 hours)
* */12 * * * rm /etc/tarbit/statistics/*.json
Enjoy statistics like these:
Native extensions: Imagemagick can not find MagickWand.h
On Ubuntu, you can run:
sudo apt-get install libmagickwand-dev
On Centos, you can run:
sudo yum install gcc ImageMagick-devel make which
On Macos, you can run:
brew install imagemagick@6
brew link --force imagemagick@6
On Windoes, you can install Linux instead.