How to Install Terraform on CentOS 8

Terraform is a free and opensource Infrastructure automation tool that allows to automate and manage IT infrastructure over cloud and on premises environments using codes.

This article describes, How to Install Terraform on - CentOS 8.

How to Install Cacti Monitoring Tool on CentOS 8 with LAMP Stack

Cacti is an open source and web-based network monitoring tool and provide graphical diagram of network real time performance. Cacti collect performance data from servers and network devices and store them for reporting and historical analysis with graphs.

How to Add Linux Host to NagiOS Monitoring Server - CentOS 8

NRPE (Nagios Remote Plugin Executor) is a client-side plugin executor to communicate client statistic between server and client. Nagios plugins and NRPE (Nagios Remote Plugin Executor) are available in EPEL Repository (Extra Packages for Enterprise Linux) for CentOS 8.

How to Install Nagios Server 4.4.9 on CentOS 8

Nagios Core is free and open source widely used monitoring tool which can be used for monitoring Linux servers, Windows servers, Network devices and other applications. Nagios provides alerting services (SMS, Email etc.) for abnormal utilization and issues for Attributes CPU load, Memory usage, Disk usage, Logged in users, Running processes etc. and Services HTTP, FTP, SSH, SMTP, POP3, SNMP etc. Nagios Core packages are not available in CentOS 8 base repository and it can be installed using EPEL repository.

How to Install XRDP Remote Desktop on CentOS 9 Stream

XRDP is an Open-Source Remote Desktop Protocol Server, which is allowing users to take remote desktop of Linux Operating System from RDP clients. XRDP uses RSA Public Key and Private Key encryption to transfer data over the network.

How to install EPEL repository on CentOS 9 Stream

The EPEL repository is an additional package repository that provides useful software packages that are not included in the official CentOS 9 repositories and easy access to install packages for commonly used software.

How to Install KSH (Korn Shell) Shell on CentOS 9 Stream

KSH (Korn Shell)is a shell programming language, which is upward compatible with “sh” (the Bourne Shell). KSH was developed by David Korn at Bell Labs in 1980s. KSH is quite popular is loved by sysadmins to automate everyday tasks on Unix like operating systems. You can install ksh on CentOS 9 using its AppStream repository.

How to Install Gnome GUI on CentOS 9 Using DNF Group Install

CentOS 9 and many Linux distributions have options to install minimal, GUI and others and minimal installation restrict resource utilization. However, if minimal installation done while installation and GUI can be installed later.

How to Install PostgreSQL 10 Database on CentOS 8

PostgreSQL is a free and open-source object-relational database management system (ORDBMS) and is available for various platforms, including Linux, Microsoft Windows, and more. Relational database management systems are a key component of many websites and applications. They provide a structured way to store, organize, and access information. Its binary packages are available in CentOS 8 AppStream repository.

How to Recover Corrupt RPM Database on CentOS 8

Sometime rpm database corrupt message displays during working with RPM or YUM/DNF as shown in below screen. So, rpm database rebuilding requires to work further with RPM or YUM/DNF.

How to Add a Service in Firewall Configuration on CentOS 8 (firewall-cmd)

Firewall is a network security tool that provide network level security based on a set of rules. It has controls on incoming and outgoing traffic.

How to Add a Port in Firewall Configuration on CentOS 8 (firewall-cmd)

Firewall is a network security tool that provide network level security based on a set of rules. It has controls on incoming and outgoing traffic.

How to Install Open VMware Tools on CentOS 8

VMware Tools are very important role plays when working with VMware Player, VMware Workstation Pro, VMware ESXi or vSphere. If VMware Tools are installed on a guest, it will report back to the VMware hypervisor guest’s IP address, CPU usage, disk usage, memory usage etc. Installing VMware Tools on a Linux machine requires a few extra steps compared to Windows. RPM based installation performed on CentOS 8 and related packages are available in its default’s repository.

How to Install/Reinstall ssl on CentOS 7

Openssl is a base package of ssl binaries and available in default repository CentOS 7 minimal installation. If removed by accident or broken, the package can be installed or reinstalled again using yum. openssl is an essential tool of any Linux distributions to work with various certificates.

How to Install Open VMware Tools on CentOS 7

VMware Tools are very important role plays when working with VMware Player, VMware Workstation Pro, VMware ESXi or vSphere. If VMware Tools are installed on a guest, it will report back the guest information to the VMware hypervisor like guest’s IP address, CPU usage, disk usage, memory usage etc. Installing VMware Tools on a Linux machine quit easy. In this article, RPM based installation performed on CentOS 7 and related packages are available in its defaults repository.

How to Fix – ‘Error: Unable to find a match: iperf’ on CentOS 8

Mostly the above message through the system when its package or binary not available on CentOS 8 default repositories. Its binary not available in CentOS 8  BaseOS and AppSteam repositories but it can be installed from EPEL Repository. 

How to Fix – ‘ifconfig Command Not Found’ on CentOS 8

The network command line tool ‘ifconfig’ is not available on CentOS 8 minimal installation. Ifconfig command is part of net-tools package and it can be installed from CentOS 8 default BaseOS repository on CentOS 8. 

How to Maintain Specific Number of Kernel Packages on CentOS 8

Sometime due to less space on /boot partition need remove old kernel packages once new/updated kernel installed. The “installonly_limit” option in /etc/dnf/dnf.conf is used to maintain the number of kernel available. By default, the limit is set to 3 kernels in CentOS 8.

How to Change Machine ID after Cloning a VM on CentOS 7

A Machine ID is a unique hexadecimal, 32-character, lowercase code of the local system that is set during installation and represents an individual machine ID over the network.

How to Install KSH (Korn Shell) Shell on CentOS 8

KSH (Korn Shell) is a shell programming language, which is upward compatible with 'sh' (Bourne Shell). KSH was developed by David Korn at Bell Labs in 1980s. KSH is quite popular and used by most of the Linux System Admins to automate daily tasks on Linux/Unix like operating systems. You can install ksh on CentOS 8 using its AppSteam repository.