Powershell – Execute Windows Update On All Windows Servers in Active Directory

A powershell script to run Windows Updates on all Windows Servers in Active Directory   Part 1: Build a list of all Windows Servers in Active Directory # # Get all Windows Servers (Windows Server version 2016/2019/2022) # $Computers = Get-ADComputer -Properties * -Filter { OperatingSystem -like “*Windows Server*” } …

VMware ESXi – How to extend the license expiration period of an ESXi server

The installable version of ESXi hosts is always installed in evaluation mode. The evaluation period is 60 days and begins when you turn on the ESXi host. The evaluation license provides the set of features equal to a vSphere Enterprise Plus license. When the evaluation period ends, the ESXi host …

Networks: CIDR – Subnet Mask – Number of addresses

CIDR SUBNET MASK # ADDRESSES /0 0.0.0.0 4294967296 /1 128.0.0.0 2147483648 /2 192.0.0.0 1073741824 /3 224.0.0.0 536870912 /4 240.0.0.0 268435456 /5 248.0.0.0 134217728 /6 252.0.0.0 67108864 /7 254.0.0.0 33664432 /8 255.0.0.0 16777216 /9 255.128.0.0 8388608 /10 255.192.0.0 4194304 /11 255.224.0.0 2097152 /12 255.240.0.0 1048567 /13 255.248.0.0 524288 /14 255.252.0.0 262144 …

Veeam – Free Trial Licences (VMware, Hyper-V, Nutanix AHV, MS Azure, MS Office 365)

Download free 30-day trial licenses from Veeam Backup & Replication for Virtual machines (VMware, Hyper-V, Nutanix AHV): http://vee.am/7_3bPw Backup & Replication for Nutanix AHV: http://vee.am/_Tu4Uw Backup for MS Azure: http://vee.am/sTseIw Backup for MS Office 365: http://vee.am/843ROw Veeam Product Edition Comparison: https://www.veeam.com/products-edition-comparison.html