How To Install syslog-ng on CentOS 7
Introduction
In this tutorial we learn how to install syslog-ng on CentOS 7.
What is syslog-ng
syslog-ng is an enhanced log daemon, supporting a wide range of input and output methods 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(), …) * 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).
We can use yum or dnf to install syslog-ng on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install syslog-ng.
Install syslog-ng on CentOS 7 Using yum
Update yum database with yum using the following command.
sudo yum makecache
After updating yum database, We can install syslog-ng using yum by running the following command:
sudo yum -y install syslog-ng
Install syslog-ng on CentOS 7 Using dnf
If you don’t have dnf installed you can install DNF on CentOS 7 first.
Update yum database with dnf using the following command.
sudo dnf makecache
After updating yum database, We can install syslog-ng using dnf by running the following command:
sudo dnf -y install syslog-ng
How To Uninstall syslog-ng on CentOS 7
To uninstall only the syslog-ng package we can use the following command:
sudo dnf remove syslog-ng
References
Summary
In this tutorial we learn how to install syslog-ng on CentOS 7 using yum and dnf.