How To Install syslog-ng-mod-json on Debian 9

In this tutorial we learn how to install syslog-ng-mod-json on Debian 9. syslog-ng-mod-json is Enhanced system logging daemon (JSON plugin)

Introduction

In this tutorial we learn how to install syslog-ng-mod-json on Debian 9.

What is syslog-ng-mod-json

syslog-ng-mod-json is:

syslog-ng is an enhanced log daemon, supporting a wide range of input and output methods: syslog, unstructured text, message queues, databases (SQL and NoSQL alike) and more.

Key features:

  • receive and send RFC3164 and RFC5424 style syslog messages
  • work with any kind of unstructured data
  • receive and send JSON formatted messages
  • classify and structure logs with builtin parsers (csv-parser(), db-parser(), etc.)
  • normalize, crunch and process logs as they flow through the system
  • hand on messages for further processing using message queues (like AMQP), files or databases (like PostgreSQL or MongoDB).

This package provides the $(format-json) template function plugin, which makes it possible to conveniently serialize system log messages to JSON. Along with the template function, this module also provides a json-parser plugin, allowing syslog-ng to parse JSON input.

There are three methods to install syslog-ng-mod-json on Debian 9. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install syslog-ng-mod-json Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install syslog-ng-mod-json using apt-get by running the following command:

sudo apt-get -y install syslog-ng-mod-json

Install syslog-ng-mod-json Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install syslog-ng-mod-json using apt by running the following command:

sudo apt -y install syslog-ng-mod-json

Install syslog-ng-mod-json Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Debian. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install syslog-ng-mod-json using aptitude by running the following command:

sudo aptitude -y install syslog-ng-mod-json

How To Uninstall syslog-ng-mod-json on Debian 9

To uninstall only the syslog-ng-mod-json package we can use the following command:

sudo apt-get remove syslog-ng-mod-json

Uninstall syslog-ng-mod-json And Its Dependencies

To uninstall syslog-ng-mod-json and its dependencies that are no longer needed by Debian 9, we can use the command below:

sudo apt-get -y autoremove syslog-ng-mod-json

Remove syslog-ng-mod-json Configurations and Data

To remove syslog-ng-mod-json configuration and data from Debian 9 we can use the following command:

sudo apt-get -y purge syslog-ng-mod-json

Remove syslog-ng-mod-json configuration, data, and all of its dependencies

We can use the following command to remove syslog-ng-mod-json configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge syslog-ng-mod-json

Dependencies

syslog-ng-mod-json have the following dependencies:

References

Summary

In this tutorial we learn how to install syslog-ng-mod-json package on Debian 9 using different package management tools: apt, apt-get and aptitude.