How to setup and secure Telegraf, InfluxDB and Grafana on Linux

The tutorial is for Red Hat family server distributions like CentOS 7.x, Red Hat 7.x, Fedora29 or newer (current version is 32), etc.

For Debian family server distributions like (Debian, Ubuntu etc.) I recommend to read this article: How To Setup Telegraf InfluxDB and Grafana on Linux, however it does not contain the own domain and fail2ban setup.

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Linux Resources usage monitoring

Capacity planning involves predicting what the capacity requirements for a system will be in future, and planning how to meet these requirements. Monitoring system resource use is important for capacity planning, because it establishes whether existing resource use is approaching capacity limits.

In Linux you can use a range of tools to monitor system resource use. These include the top, ps, pstree, vmstat, sar and free commands.

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Welcome to the Sysadmin blog

This blog will be devoted to issues related to the administration of Linux servers. I focused on popular distributions such as Debian 9.8.0, CentOS 7.6, Fedora 29. Of course I won’t stop there, because I have a RHEL (Red Hat Enterprise Linux) 7.7 instance on Virtual Box.

I will describe the solution that I implemented at home on three laptops that serve as servers at home for my own learning purposes. In addition, I bought myself a VPS, on which I configured the environment to host this very site. I also intend to buy another VPS in the future and move the installation of mail server and Samba on one machine. Ultimately, I want to turn off two other laptops (mail server and Samba), hide them in a drawer and have everything in the network.