Tuesday, 24 January 2023

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.

Saturday, 17 December 2022

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.

Wednesday, 14 December 2022

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.

Tuesday, 29 November 2022

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.

Tuesday, 15 November 2022

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.