carbon-c-relay software package provides Carbon-compatible graphite line mode relay, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install carbon-c-relay
carbon-c-relay is installed in your system.
Make ensure the carbon-c-relay package were installed using the commands given below,
$ sudo dpkg-query -l | grep carbon-c-relay *
You will get with carbon-c-relay package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Network |
| Package | carbon-c-relay |
| Version | 2.2-1 |
| Description | Carbon-compatible graphite line mode relay |
| Sub Section | Net |