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

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

Introduction

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

What is syslog-ng-mod-trigger

syslog-ng-mod-trigger 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 trigger() source, which is most useful as a debugging aid.

There are three methods to install syslog-ng-mod-trigger 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-trigger 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-trigger using apt-get by running the following command:

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

Install syslog-ng-mod-trigger Using apt

Update apt database with apt using the following command.

sudo apt update

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

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

Install syslog-ng-mod-trigger 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-trigger using aptitude by running the following command:

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

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

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

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

Uninstall syslog-ng-mod-trigger And Its Dependencies

To uninstall syslog-ng-mod-trigger 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-trigger

Remove syslog-ng-mod-trigger Configurations and Data

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

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

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

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

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

Dependencies

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

References

Summary

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