Author: Rahul

I, Rahul Kumar am the founder and chief editor of TecAdmin.net. I am a Red Hat Certified Engineer (RHCE) and working as an IT professional since 2009..

As a dedicated system administrator, it’s imperative to prioritize the efficient management of Windows server event log backups. Ensuring regular backups and secure storage, preferably on an external hard drive or a reliable cloud storage solution, is key. Adopting a daily backup routine and maintaining a backup archive spanning at least one year is crucial for effective troubleshooting and system analysis. Discover the Ultimate Batch Script for Windows Log Backup and Storage Step 1: Create Backup Directory Initiate your backup process by creating a dedicated backup directory. For instance, establish c:\backup for your primary backups and c:\backup\logs specifically for your…

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The Zabbix server has many templates ready to use, making it easy to add them to your hosts. If you’re reading this, you probably have Zabbix server on your main server and Zabbix clients on the remote systems you want to monitor. For help installing Zabbix Server and Client on different operating systems, check these guides: Installation on Ubuntu, Debian – Zabbix Server and Zabbix Agent Installation on CentOS, RedHat – Zabbix Server and Zabbix Agent Installation on Windows – Zabbix Agent There are two main ways to add remote hosts to your Zabbix server. The first way is an…

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Apache ActiveMQ is the powerful, open-source messaging and Integration Patterns server. It supports many Cross Language Clients and Protocols, from Java, C, C++, C#, Ruby, Perl, Python, and PHP. Ajax to support web streaming support for web browsers using pure DHTML. This article will help you to Install Apache ActiveMQ on CentOS, RHEL, and Fedora systems. Step 1 – Install JAVA First, we need to check if JAVA is installed on our system or not. Use the following command to check if you have java installed already on your system. java -version Output java version “1.7.0_25” Java(TM) SE Runtime Environment…

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MySQL community has released MySQL 5.7 Release. Its available on MySQL official website. For this article We are using CentOS 7.9, 64 Bit System. For other Operating system version (Like: windows) you may download files from here. Also change the rpm names in all given commands in this tutorial. This blog post will help you to install MySQL Server 5.7 on your CentOS 6 and Fedora systems. Step 1 – Enable MySQL Repository First of all, You need to enable MySQL 5.7 community release yum repository on your system. The rpm packages for yum repository configuration are available on MySQL’s…

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Linux is a powerful and versatile operating system that runs on a wide range of devices, from smartphones to supercomputers. As a Linux administrator, monitoring system performance is crucial for maintaining stability, optimizing resources, and detecting potential issues before they become problems. Fortunately, Linux provides a variety of tools for monitoring and managing system performance. In this article, we will explore 15 essential system and performance monitoring tools for Linux administrators. Top Top is a command-line utility that provides real-time information about system processes, CPU usage, memory usage, and other system statistics. It displays a list of running processes, sorted…

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A CSR stands for ‘Certificate Signing Request’ is an encrypted block of text ,that is generated on the server where the certificate will be used on. A CSR contains information about to your organization and domain name, locality, and country. It also contains the public key that will be included in your certificate. For creating CSR for wildcard ssl , you must specify you domain name starting with “*.” . for eg: *.tecadmin.net or *.example.com. Follow given steps to Create CSR for WildCard SSL on windows Server 2008. Step 1. Open Internet information Server Start IIS by typing inetmgr in…

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When you are running a website or web application, it is essential to maintain the security and integrity of your server. One of the simplest yet most important steps is to hide your Apache and PHP version information from HTTP headers. By default, this information is exposed in HTTP response headers, potentially making your server more vulnerable to attacks. In this article, we will show you how to hide Apache and PHP version information from HTTP headers to improve your server’s security. Step 1: Understanding the Risks of Exposed Versions Exposing version information of Apache and PHP may not seem…

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If you’re a Windows user who needs to connect to remote servers via SSH, you’re probably familiar with Putty, one of the most popular SSH clients available for Windows. However, Putty isn’t the only option out there. Many other SSH clients offer more features, better security, and a better user experience. When choosing an SSH client, it’s important to consider factors such as security, ease of use, and advanced features. For example, if you’re a system administrator, you may want an SSH client that includes tools for system administration, such as remote desktop and file transfer. If you’re a power…

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Red5 is an open-source media server for live streaming solutions that are written in Java. It provides a powerful platform that supports streaming Video (FLV, F4V, MP4, 3GP), Audio (MP3, F4A, M4A, AAC), and RTMP/RTMPT protocols for maximum flexibility. This article will guide you on how to install Red5 Server on CentOS/RHEL 9/8. Prerequisites A CentOS/RHEL 8 or 9 instance with root privileges. Sufficient storage space for the server software and media files. An installed Java Development Kit (JDK), as Red5 is a Java-based application. Step 1: Update the System First, you should start by updating your system to the…

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Cron is a powerful scheduling tool used in Unix-like operating systems for running tasks at predetermined times. It’s invaluable for automating system maintenance and administrative tasks. However, when trying to schedule these tasks, you might encounter the error `-bash: crontab: command not found`. This indicates that the Crontab management utility is not installed on your system. This guide provides a detailed, step-by-step tutorial on how to install and configure Crontab, the interface for managing cron jobs, on CentOS and Red Hat Enterprise Linux (RHEL) systems. Introduction Before diving into the installation process, it’s essential to understand what Crontab is and…

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