You can use the built-in telnet command line tool to connect to a remote SMTP server and send a test e-mail. This is the easiest and fastest way to test a remote SMTP server, and it doesn’t require a full SMTP client to be installed. But in most cases, SMTP servers require user authentication, and unauthenticated sending is possible only through anonymous SMTP servers (SMTP relays).
Windows Server: Administration Guides
Step-by-step tutorials and comprehensive courses covering Windows Server installation, configuration, administration, and management. Learn to deploy server roles, manage Active Directory, configure networking, automate tasks with PowerShell, and implement security best practices for Windows Server 2012, 2016, 2019, and 2022 editions. Ideal for beginners and IT professionals seeking practical, hands-on knowledge to master Windows Server environments.
Windows 10 and 11 Tutorials for System Administrators
Guides and technical tutorials for system administrators, focusing on the configuration, deployment, and management of Windows 10 and Windows 11 desktop operating systems. Step-by-step instructions on installation, deployment, policy configuration, security hardening, and administrative tools to optimize Windows enterprise environments.
Group Policy (GPO) Guides for Admins
Clear, concise tutorials on creating and managing Group Policy Objects to control user and computer settings, enforce security, and streamline network administration in Active Directory environments.
- Configuring Firewall Rules With Group Policy
- How to Copy Files or Folders to All Computers with GPO
- Updating Group Policy Administrative Templates (ADMX) Files
- Active Directory Password Policy
- Applying Group Policy troubleshooting guidance
- Deploying printers via GPO
- Running PowerShell scripts using Group Policy
- Local Groups Policies export and import on Windows
Active Directory: Setup, Configuration, and Best Practices
Step-by-step tutorials and comprehensive resources for installing, configuring, and managing Active Directory Domain Services (AD DS). Learn how to set up domain controllers, design forest and domain structures, create users and groups, and implement security best practices.
- Updating AD Group Membership Without Restart or Logoff
- How to Detect the Source of Account Lockout in Active Directory
- Adding an Additional Domain Controller To an Existing AD Domain
- Active Directory Health Check
- Get-ADDomainController: How to Get Domain Controller Information with Powershell
- How to Transfer os Seize FSMO Roles in Active Directory
- Active Directory Backup Best Practices
- How to Reset Domain Admin Password in Active Directory
- Fix Trust Relationship Failed Issue without Domain Rejoining
- How to Extend Password Expire Date in Active Directory
- How to Find Inactive Accounts in Active Directory
Enterprise Virtualization Platforms
Expert guides and tutorials for system administrators on VMware, Hyper-V, and Proxmox virtualization. Covering installation, configuration, management, and optimization to build robust and scalable virtual environments.
PowerShell Scripting Tutorials
Practical guides to automate and manage a wide range of IT tasks using PowerShell. Learn how to streamline system administration, Active Directory, network configuration, software deployment, Microsoft 365 management, and more through powerful scripting and cmdlets.
VMware:Install and Configure Guides
Detailed walkthroughs for installing VMware ESXi, vCenter Server, and VMware Workstation Player, including configuration of virtual machines, network settings, and storage options to optimize your virtual infrastructure.
- VMware ESXi: Create VMFS Datastore on USB Drives
- Configuring iSCSI Datastore on VMware ESXi
- Add Drivers into VMWare ESXi Installation Image
- Adding Sound Controller to a VMWare VM
- Using Free VMware vSphere Hypervisor
- Adding an ESXi host to the VMware vCenter (vCSA)
- Reset VMware ESXi root password
- Disable the Virtual Machine Auto Suspend Feature in VMware Workstation/Player
- Windows 10Windows Server 2016Windows Server 2019
How to Disable Windows Error Reporting and Clear WER\ReportQueue Folder on Windows
March 15, 2024The Windows Error Reporting service (WER) is used to collect the debug information about system and third-party app failures and send error reports to Microsoft servers. This information should be…
- VirtualizationVMwareWindows 10
Adding a Sound Card to a Virtual Machine on VMWare ESXi
March 15, 2024By default, there are no sound devices in VMWare ESXi virtual machines. If you want to get sound from a guest Windows VM, it is easier to use the RDP…
- Active DirectoryPowerShellWindows Server 2016Windows Server 2019
Time-Based (Temporary) Group Membership in Active Directory
March 15, 2024The version of Active Directory in Windows Server 2016 introduces an interesting feature that allows you to temporarily add a user to an AD security group. This feature is called…
- Windows 10Windows Server 2016
Dumping User Passwords from Windows Memory with Mimikatz
March 16, 2024In this article, written as a part of a series devoted to Windows security, we will learn quite a simple method for getting passwords of all active Windows users using…
- PowerShellWindows Server 2016Windows Server 2019
Setting Remote Desktop Drain Mode on a Windows Server RDS Host
October 3, 2022You can use RDS Drain Mode to maintain terminal hosts in a Remote Desktop Services farm. If you enable Drain Mode for your RDS server, you can prevent the server…
Simple Network Management Protocol (SNMP) is used to get information about the current status of servers, network equipment, printers or other IP devices. You can get different metrics through SNMP:…
- Windows Server 2016Windows Server 2019
How to Set, Copy, Export or Restore NTFS Permissions Using iCACLS?
March 15, 2024You can use the built-in iCACLS tool to manage NTFS permissions on Windows. The icacls.exe command line tool allows you to get or change Access Control Lists (ACLs) for files…
In this article we will show how to reset the administrator password on the HPE server management board — Integrated Lights-Out (ILO). This guide is based on iLO v4, but…
- Active DirectoryPowerShellWindows 10Windows Server 2019Windows Server 2022
Using Managed Service Accounts (MSA and gMSA) in Active Directory
October 11, 2024You can use Managed Service Accounts (MSA) to securely run services, applications, and scheduler tasks on servers and workstations in an Active Directory domain. The MSA is a special type…