How To Install Graylog on Ubuntu 18.04 LTS

Install Graylog on Ubuntu 18.04 LTS

In this tutorial, we will show you how to install Graylog on Ubuntu 18.04 LTS. For those of you who didn’t know, Graylog is a free and open-source powerful centralized log management tool based on Elasticsearch and MongoDB. Graylog helps you to collect, index and analyze any machine logs centrally.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation Graylog on an Ubuntu 18.04 (Bionic Beaver) server.

Install Graylog on Ubuntu 18.04 LTS Bionic Beaver

Step 1. First, make sure that all your system packages are up-to-date by running these following apt-get commands in the terminal.

Step 2. Installing Java.

Graylog is built using Java, so it can technically run anywhere, however, this may require you to install the Java Development Kit which contains the Runtime Environment too:

Now check the java version:

Step 3. Installing MongoDB.

A stable version of MongoDB packages is already in the default Ubuntu repository. However, the version in Ubuntu’s repository isn’t the latest. If you want to install the latest version you must add a third-party repository to your system and install it from there:

After adding the repository key to Ubuntu, run the commands below to add MongoDB repository to your system:

After that, update your system and refresh existing repositories by running the commands below:

And now install the latest stable version of MongoDB:

Step 4. Installing Elasticsearch.

First, install Elasticsearch using the apt package manager from the official Elastic repository:

Then, install Elasticsearch with apt using the following command:

Start the Elasticsearch service and set it to automatically start on boot:

Once Elasticsearch is installed, you will need to modify the Elasticsearch main configuration file:

Make the following changes:

After a few seconds, run the following to test that Elasticsearch is running properly:

Step 5. Installing Graylog.

Graylog is not available in the Ubuntu 18.04 default repository, you need to download and install the Graylog repository to your system:

Update the package lists and install Graylog:

After you have installed the Graylog Server, you have to generate secret key for Graylog using the following command:

Now create a hash password for the root user that can be used to log in to the Graylog web server using the following command:

Edit the server.conf file:

Make changes to the file as shown below:

To enable the Graylog web interface, make changes to the file as shown below:

After you have modified the configuration file, you can start Graylog Service using the following commands:

Step 6. Accessing Graylog.

Graylog will be available on HTTP port 8080 by default. Open your favourite browser and navigate to or http://server-ip:9000 and complete the required steps to finish the installation.

Install Graylog on Ubuntu 18.04 LTS

Congratulations! You have successfully installed Graylog. Thanks for using this tutorial for installing Graylog on Ubuntu 18.04 LTS system. For additional help or useful information, we recommend you to check the official Graylog web site.

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