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This guide describes the fastest way to install Graylog on Ubuntu 18.04 and 20.04 LTS. All links and packages are present at the time of writing but might need to be updated later on.

1. In Repository.Infrastructure, first add a reference for data use of another project. We will use data of Repository.Core, so add a reference. First right-click on References = Add Reference, then Click check box of Repository.Core, shown in the below 2 screenshots.
2. In previous assignment during up-gradation from 3.2 to 4.0 (BODS) we faced some issue post up gradation. The one of major issue we faced was as follows: In 3.2, we have defined multiple join conditions for multiple tables in a job but after upgrade to 4.0 all the conditions mentioned in where clause remains same (In where clause only).

Warning

This guide does not cover security settings! The server administrator must make sure the graylog server is not publicly exposed, and is following security best practices.

Prerequisites¶

Taking a minimal server setup as base will need this additional packages:

If you get an error stating Unable to locate package, you likely need to enable the universe repository which can be done typing the below command, and subsequent commands as follows:

MongoDB¶

The official MongoDB repository provides the most up-to-date version and is the recommended way of installing MongoDB 1:

For e.g. corporate proxies and other non-free environments you can use a keyserver approach via wget.wget-qO-'http://keyserver.ubuntu.com/pks/lookup?op=get&search=0x9DA31620334BD75D9DCB49F368818C72E52529D4'sudoapt-keyadd-

The last step is to enable MongoDB during the operating system’s startup and verify it is running.

Elasticsearch¶

Graylog can be used with Elasticsearch 7.x, please follow the below instructions to install the open source version of Elasticsearch.

The above instructions are a derivative from the Elasticsearch install page

Modify the Elasticsearch configuration file (/etc/elasticsearch/elasticsearch.yml)and set the cluster name to graylog and uncomment action.auto_create_index:false to enable the action:

After you have modified the configuration, you can start Elasticsearch and verify it is running.

Graylog¶

Now install the Graylog repository configuration and Graylog itself with the following commands:

Hint

If you do not want the Integrations Plugins or the Enterprise Plugins installed, then simply run sudoapt-getinstallgraylog-server

Edit the Configuration File¶

Read the instructions within the configurations file and edit as needed, located at /etc/graylog/server/server.conf. Additionally add password_secret and root_password_sha2 as these are mandatory and Graylog will not start without them.

To create your root_password_sha2 run the following command:

To be able to connect to Graylog you should set http_bind_address to the public host name or a public IP address of the machine you can connect to. More information about these settings can be found in Configuring the web interface.

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Note

If you’re operating a single-node setup and would like to use HTTPS for the Graylog web interface and the Graylog REST API, it’s possible to use NGINX or Apache as a reverse proxy.

The last step is to enable Graylog during the operating system’s startup and verify it is running.

The next step is to ingest messages into your Graylog and extract the messages with extractors or use the Pipelines to work with the messages.

Multiple Server Setup¶

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If you plan to have multiple server taking care of different roles in your cluster like we have in this big production setup you need to modify only a few settings. This is covered in our Multi-node Setup guide. The default file location guide will give you the file you need to modify in your setup.