Posts

How to Update PHP 8.2.27 to 8.2.35 to the Latest Version on Oracle Linux 9 (Step-by-Step Guide)

How to Update PHP on Oracle Linux 9 Using DNF | Step-by-Step Guide Are you managing PHP applications on Oracle Linux 9? In this tutorial, we will learn how to check the installed PHP version, inspect available package versions, configure the Remi PHP module stream, back up configuration files, upgrade PHP packages, and validate PHP-FPM after the update. This guide is useful for Linux administrators, system engineers, DevOps engineers, and beginners who want practical experience with Oracle Linux server administration. What You Will Learn How to check the current PHP version How to check available PHP module streams How to enable the Remi PHP 8.2 module stream How to refresh DNF repository metadata How to list available PHP package versions How to back up PHP configuration files How to preview a package upgrade safely How to upgrade PHP and related extensions How to verify PHP, Phalcon, and PHP-FPM 1. Check the Installed PHP Version Run the following command: php -v Explanation: This c...
Post a Comment
Read more

Windows Server Interview Questions and Answers: 40 Questions for Beginners to Experts

  Introduction Windows Server is widely used in enterprise IT environments to manage users, computers, applications, network services, security, and infrastructure. In this article, we cover important Windows Server interview questions and answers for freshers, experienced System Administrators, L2/L3 engineers, and IT Managers. Section 1: Windows Server Fundamentals 1. What is Windows Server? Windows Server is a Microsoft server operating system designed to provide enterprise services such as Active Directory, DNS, DHCP, file sharing, virtualization, and centralized security management. 2. What is Active Directory? Active Directory Domain Services (AD DS) is a directory service that centrally manages users, computers, groups, authentication, and access permissions within a Windows domain. 3. What is a Domain Controller? A Domain Controller is a server running AD DS that authenticates users and computers and provides directory services to the domain. 4. What is the difference betwe...
Post a Comment
Read more

Dell PowerProtect Data Domain System Manager Login Failed While SSH Login Works – Troubleshooting an Expired HTTPS Certificate

  Dell PowerProtect Data Domain System Manager Login Failed While SSH Login Works – Troubleshooting an Expired HTTPS Certificate Introduction While managing a Dell PowerProtect Data Domain appliance, you may encounter a confusing situation where the same sysadmin credentials work successfully through SSH , but the credentials appear to fail when logging in to Data Domain System Manager (DD System Manager) through the web browser. At first, this can look like a password or user-account problem. However, the authentication credentials may be perfectly valid. In this case, the actual root cause was an expired HTTPS certificate used by the Data Domain web interface. This article explains how to troubleshoot this issue systematically and how to safely identify and resolve an expired HTTPS certificate. Problem Statement The issue was: SSH login was successful, but DD System Manager login was not working with the same credentials. The initial assumption could be: Incorrect password Lo...
Post a Comment
Read more

How to Install VMware PowerCLI on Windows 11 (Offline Method)

How to Install VMware PowerCLI on Windows 11 (Offline Method) Introduction VMware PowerCLI is a powerful set of PowerShell modules that allows VMware administrators to automate and manage VMware vSphere environments. Using PowerCLI, you can manage ESXi hosts, vCenter Servers, virtual machines, datastores, networks, snapshots, and much more. This guide explains how to install VMware PowerCLI manually (offline) on a Windows 11 system without downloading it directly from the PowerShell Gallery. Prerequisites Before starting, ensure you have: Windows 11 Windows PowerShell 5.1 or later Administrator privileges VMware PowerCLI offline package (ZIP file) Step 1: Download VMware PowerCLI Download the VMware PowerCLI ZIP package from VMware's official website or another trusted source. After downloading, the file will look similar to: VMware-PowerCLI-<version>.zip Extract the ZIP file using Windows Explorer or a tool such as 7-Zip or WinRAR. Step 2: Extract the ZIP File Right-click th...
Post a Comment
Read more

Top 25 Active Directory Interview Questions and Answers for Windows Server Administrators

Windows Server Interview Questions and Answers – Section 2: Active Directory (25 Questions) Active Directory is one of the most important topics for Windows Server administrators. Whether you are preparing for a Windows Server Administrator, System Administrator, Infrastructure Engineer, or Active Directory Administrator interview, you should understand not only the definitions but also how Active Directory works in a real enterprise environment. In this section, we cover 25 important Active Directory interview questions and answers, from basic concepts such as domains and forests to advanced topics such as FSMO roles, RODC, Active Directory Recycle Bin, and disaster recovery. Q1. What is Active Directory? Answer: Active Directory (AD) is Microsoft’s directory service used to centrally manage users, computers, groups, security policies, and other network resources in a Windows domain environment. The primary Active Directory role used in most organizations is Active Directory Domain Se...
Post a Comment
Read more

Windows Server Administrators Top 200 Question - Appendix B

  Appendix B — Top 50 CMD Commands for Windows Server Administrators 1. Network Commands — 1 to 15 # CMD Command Purpose 1 ipconfig Displays basic IP configuration 2 ipconfig /all Displays detailed IP configuration 3 ipconfig /release Releases the DHCP address 4 ipconfig /renew Renews the DHCP address 5 ipconfig /flushdns Clears the DNS resolver cache 6 ipconfig /displaydns Displays cached DNS records 7 ping Tests network connectivity 8 tracert Traces the route to a destination 9 pathping Tests route and packet loss 10 nslookup Queries DNS 11 netstat -ano Displays connections, ports, and PIDs 12 arp -a Displays the ARP cache 13 route print Displays the routing table 14 hostname Displays the computer name 15 getmac Displays MAC addresses 2. Domain and Active Directory Commands — 16 to 25 # CMD Command Purpose 16 whoami Displays the current user 17 whoami /all Displays user SID, groups, and privileges 18 net user Lists local users 19 net user username /domain Displays domain user inf...
Post a Comment
Read more

Windows Server Top 200 Interview Questions Appendix A

Appendix A — Top 100 PowerShell Commands for Windows Server Administrators 1. PowerShell Basics and Help — 1 to 10 # PowerShell Command Purpose 1 Get-Help Displays help for cmdlets 2 Get-Command Lists available commands 3 Get-Member Shows properties and methods of an object 4 Get-Alias Lists PowerShell aliases 5 Get-Module Lists loaded modules 6 Import-Module Imports a PowerShell module 7 Get-ExecutionPolicy Displays the current script execution policy 8 Set-ExecutionPolicy Changes the execution policy 9 Get-History Displays command history 10 Clear-History Clears PowerShell command history 2. System Information — 11 to 20 # PowerShell Command Purpose 11 Get-ComputerInfo Displays detailed computer information 12 Get-CimInstance Win32_OperatingSystem Displays OS information 13 Get-CimInstance Win32_ComputerSystem Displays computer hardware information 14 Get-CimInstance Win32_BIOS Displays BIOS information 15 Get-CimInstance Win32_Processor Displays CPU information 16 Get-HotFix Lists i...
Post a Comment
Read more