How To Install syslog-ng-mod-grok on Debian 9
Introduction
In this tutorial we learn how to install syslog-ng-mod-grok on Debian 9.
What is syslog-ng-mod-grok
syslog-ng-mod-grok 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).
Grok is an advanced pattern format (like PatternDB) used primarily by LogStash, which allows users to parse unstructured data into a structured format. This module allows syslog-ng users to use Grok patterns, too.
There are three methods to install syslog-ng-mod-grok 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-grok 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-grok using apt-get by running the following command:
sudo apt-get -y install syslog-ng-mod-grok
Install syslog-ng-mod-grok Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install syslog-ng-mod-grok using apt by running the following command:
sudo apt -y install syslog-ng-mod-grok
Install syslog-ng-mod-grok 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-grok using aptitude by running the following command:
sudo aptitude -y install syslog-ng-mod-grok
How To Uninstall syslog-ng-mod-grok on Debian 9
To uninstall only the syslog-ng-mod-grok package we can use the following command:
sudo apt-get remove syslog-ng-mod-grok
Uninstall syslog-ng-mod-grok And Its Dependencies
To uninstall syslog-ng-mod-grok 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-grok
Remove syslog-ng-mod-grok Configurations and Data
To remove syslog-ng-mod-grok configuration and data from Debian 9 we can use the following command:
sudo apt-get -y purge syslog-ng-mod-grok
Remove syslog-ng-mod-grok configuration, data, and all of its dependencies
We can use the following command to remove syslog-ng-mod-grok configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge syslog-ng-mod-grok
Dependencies
syslog-ng-mod-grok have the following dependencies:
References
Summary
In this tutorial we learn how to install syslog-ng-mod-grok package on Debian 9 using different package management tools: apt, apt-get and aptitude.
