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Manage DigitalOcean droplets via API with Python

Kamrul September 12, 2019September 25, 2019 Leave a comment

In this guide we will see how to create, destroy & add floating IP with DigitalOcean API.

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How to prepare for RHCSA 7

Kamrul July 24, 2019September 10, 2021 2 Comments

Last year, I passed RHCSA 7 exam with a great score, 300 out of 300! I prepared from home without admitting any institution.

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Configure internet connection (PPPoE) in OpenWrt router

Kamrul July 24, 2019December 31, 2019 Leave a comment

Previously we saw how to setup OpenWRT on Xiaomi Router 3. In this tutorial we will setup internet connectivity (PPPoE) via SSH.

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How to install OpenWrt on Xiaomi Mi Router 3

Kamrul July 24, 2019March 8, 2021 76 Comments

(last update: 08-Mar-2021) OpenWrt is an embedded operating system based on Linux. You will get full power of Linux in your home router. OpenWrt has a lot of powerful features that default firmware doesn’t offer. There are several OpenWrt based firmwares for Xiaomi Mi Router 3. Among of them, PandoraBox and X-Wrt work very well …

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How to secure your server with Fail2ban on CentOS 7/RHEL7

Kamrul May 6, 2019September 25, 2019 Leave a comment

Fail2ban is an application which helps to protect your server from brute-force attack. It monitors the log file of the system and looks for the malicious activity. If malicious activity found like too many failed login attempts, it ban the IP address. It is an extremely helpful and must have application for a server. Few …

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How to install WordPress on OpenLiteSpeed Web Server

Kamrul April 28, 2019June 11, 2020 Leave a comment

This tutorial will guide you how to install WordPress on OpenLiteSpeed web server. Before we start, make sure that you have OpenLiteSpeed web server, PHP, MySQL are installed and configured. If you didn’t have already, you can see How to install OpenLiteSpeed, PHP 7.3, MySQL on Debian 7/8 and CentOS 7 Preparing database for WordPress …

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About Me

Hello! I am Abdul Hannan (Kamrul). I am a DevOps/SRE Engineer. Love to code in Golang. For any query, please mail: contact[at]kamrul.dev

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