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Revision 53 as of 2021-02-15 01:42:19
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Deletions are marked like this. Additions are marked like this.
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$udp = Get-NetUDPEndpoint
foreach ($u in $udp) {
    $procid = $u.OwningProcess
    $proc = Get-Process -PID $procid | SELECT ID,ProcessName
    Write-Host "||" $($u.LocalAddress) "||" $($u.LocalPort) "||" $($procid) "||" $proc.ProcessName "||"
}

Here is a list of Power Shell Scripts that are too cool to ignore

Contents

  1. Here is a list of Power Shell Scripts that are too cool to ignore
  2. Windows
    1. Expand all zip files into directories with zip name
    2. List of Listening Ports with their owning programs
    3. List Memory Installed
    4. List object from Registry - namely version of .NET installed
    5. Remote commands
    6. Replace a string in a file using a regular expression
  3. AD Scripts
    1. Add User to the Active Directory as a batch
    2. List of AD accounts and the last time they logged in
    3. Delete AD User accounts that have not been used in X days
    4. Delete AD Computer accounts that have not been used in X days
    5. List AD Computer accounts and the last time they have been logged in
    6. Adding DNS records to Windows DNS - For CPTR 446 class
    7. Setting up a Group Managed Service Account
  4. SCVMM Powershell scripts
    1. Get a list of Virtual Machines that have a DVD attached
    2. List VMs at the end of the semester to be deleted
    3. Get a list of VM Mac Addresses for CPTR 427
    4. Get a list of IP address for SCVMM
    5. List SCVMM VMs/Templates and their Ownership - Change Ownership
    6. List SCVMM VMs/Templates LimitCPUForMigration and Set to allow migration
    7. Setting up a Windows 2019 Server for the first time
    8. Power shell to list of VM hard drives sizes
    9. List the amount of memory used by virtual machines
    10. Power Shell Scripts to create a NAT network (without DHCP) on Windows 10
    11. Power Shell Script to List Network Adapters on a VM
    12. List VLANs for all CPTR 427 Virtual Machines in System Center
    13. Revoke all MAC addresses Back to the Pool
    14. Change all VMs to use Dynamic Memory and reduce memory usage

For the uninitiated:

Symbol

Meaning

%

shortcut for foreach object

$_

current object in the pipeline

Get-Member

Will list the fields of the object you send it

Sort-Object -Property [property name]

Will sort the objects you send in by the property name(s) which can be a comma separated list

Where-Object {$_.property -like '*string*'}

Will filter the objects. Also short cut notation: ? {$_.property -like '*string*'}

Get-Command -Module PSWindowsUpdate

Lists all the commands in the PSWindowsUpdate module

Windows

Expand all zip files into directories with zip name

   1 $list = Get-ChildItem | ? { $_.Name -like "*.zip" } | select Name
   2 foreach ($line in $list) {
   3     $parts = $line.Name.Split(".")
   4     $outDir = ".\" + $parts[0]
   5     $inFile = $line.Name
   6     mkdir $outDir
   7     Expand-Archive $inFile -DestinationPath $outDir 
   8 }

List of Listening Ports with their owning programs

   1 $listening = (Get-NetTCPConnection | ? {($_.State -eq "Listen") -and ($_.RemoteAddress -eq "0.0.0.0")})
   2 foreach ($l in $listening) {
   3     $procid = $l.OwningProcess
   4     $proc = Get-Process -PID $procid | SELECT ID,ProcessName
   5     Write-Host $($l.LocalPort) "||" $($procid) "||" $proc.ProcessName
   6 }
   7 
   8 $udp = Get-NetUDPEndpoint
   9 foreach ($u in $udp) {
  10     $procid = $u.OwningProcess
  11     $proc = Get-Process -PID $procid | SELECT ID,ProcessName
  12     Write-Host "||" $($u.LocalAddress) "||" $($u.LocalPort) "||" $($procid) "||" $proc.ProcessName "||"
  13 }

List Memory Installed

   1 Get-WmiObject win32_physicalmemory | Format-Table Manufacturer,Banklabel,Configuredclockspeed,Devicelocator,Capacity,Serialnumber -autosize

List object from Registry - namely version of .NET installed

   1 gci 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP' | sort pschildname -des | foreach-object {$_.name; $_.GetValue("Version");}

Remote commands

   1 Invoke-Command -ComputerName eve -ScriptBlock { date }

Replace a string in a file using a regular expression

So I downloaded a bunch of files from "the way back machine" site and I needed to update the hard-coded links to be relative site links. The following little script did it for me.

   1 $files = ls Level*.html
   2 foreach ($item in $files) {
   3     (Get-Content -path $item) | % { $_ -Replace '(https://web.archive.org/nebula/level)([0123456789]{2})/', 'Level$2.html' } | Set-Content $item
   4 } 

AD Scripts

Add User to the Active Directory as a batch

   1 New-ADUser -Name "A a" -GivenName "A" -Surname "a" -SamAccountName "ab" -Path "OU=OU_Students,DC=cs,DC=southern,DC=edu" -AccountPassword (ConvertTo-SecureString "z36Hynyghg" -AsPlainText -Force) -Enabled $true

See: Excel Example

List of AD accounts and the last time they logged in

   1 # This method looks like it should work, but LastLogon is stored at each domain controller, and the domain controller you are 
   2 # using, may not have ever been logged into by the user
   3 #Get-ADUser -Filter * -SearchBase "dc=home,dc=scotnpatti,dc=com" -ResultPageSize 0 -Prop CN,samaccountname,lastLogonTimestamp | 
   4 #     select CN, samaccountname,@{n="lastLogonDate";e={[datetime]::FromFileTime($_.LastLogonTimestamp)}} 
   5 
   6 # INSTEAD USE THIS METHOD
   7 Import-Module ActiveDirectory
   8 function Get-LastLogonEvents
   9 {
  10     $UserList = New-Object System.Collections.ArrayList
  11     $dcs = Get-ADDomainController -Filter {Name -like "*"}
  12     $users = Get-ADUser -Filter *
  13     $time = 0
  14     foreach($user in $users)
  15     {
  16         foreach($dc in $dcs)
  17         {
  18             $hostname = $dc.HostName
  19             $currentUser = Get-ADUser $user.SamAccountName | Get-ADObject -Server $hostname -Properties lastLogon
  20             if($currentUser.LastLogon -gt $time)
  21             {
  22                 $time = $currentUser.LastLogon
  23             }
  24         }
  25         
  26         $dt = [DateTime]::FromFileTime($time)
  27         $temp = New-Object System.Object
  28         $temp | Add-Member -MemberType NoteProperty -Name "SamAccountName" -Value $user.SamAccountName
  29         $temp | Add-Member -MemberType NoteProperty -Name "LastLogon" -Value $dt
  30         $UserList.Add($temp) | Out-Null
  31         $time = 0
  32     }
  33     return $UserList
  34 }
  35 $myList = Get-LastLogonEvents | Sort-Object LastLogon | FT SamAccountName, LastLogon
  36 Write-Output $myList

Delete AD User accounts that have not been used in X days

   1 $DaysAgo = (Get-Date).AddDays(-180)
   2 #Get-ADUser -Filter {Enabled -eq $True} -Properties LastLogonDate | ? {($_.LastLogonDate -le $DaysAgo)  } | FT Name, SamAccountName, DistinguishedName, LastLogonDate
   3 Get-ADUser -Filter {Enabled -eq $True} -Properties LastLogonDate | ? {($_.LastLogonDate -le $DaysAgo)  } | Remove-ADUser -Confirm

Delete AD Computer accounts that have not been used in X days

   1 $YearAgo = (Get-Date).AddDays(-370)
   2 Get-ADComputer -Filter * -Properties * | ? {$_.LastLogonDate -le $YearAgo } | Remove-ADObject -Recursive -Confirm 
   3 #Get-ADComputer -Filter * -Properties * | ? {$_.LastLogonDate -le $YearAgo } | FT Name, LastLogonDate -AutoSize

List AD Computer accounts and the last time they have been logged in

   1 # This method looks like it should work, but LastLogon is stored at each domain controller, and the domain controller you are 
   2 # using, may not have ever been logged into by the user
   3 #Get-ADUser -Filter * -SearchBase "dc=home,dc=scotnpatti,dc=com" -ResultPageSize 0 -Prop CN,samaccountname,lastLogonTimestamp | 
   4 #     select CN, samaccountname,@{n="lastLogonDate";e={[datetime]::FromFileTime($_.LastLogonTimestamp)}} 
   5 
   6 # INSTEAD USE THIS METHOD
   7 Import-Module ActiveDirectory
   8 function Get-LastComputerLogonEvents
   9 {
  10     $ComputerList = New-Object System.Collections.ArrayList
  11     $dcs = Get-ADDomainController -Filter {Name -like "*"}
  12     Write-Output $dcs
  13     $computers = Get-AdComputer -Filter *
  14     $time = 0
  15     foreach($computer in $computers)
  16     {
  17         foreach($dc in $dcs)
  18         {
  19             $hostname = $dc.HostName
  20             $currentComputer = Get-ADComputer $computer.SamAccountName | Get-ADObject -Server $hostname -Properties lastLogon
  21             if($currentComputer.LastLogon -gt $time)
  22             {
  23                 $time = $currentComputer.LastLogon
  24             }
  25         }
  26         
  27         $dt = [DateTime]::FromFileTime($time)
  28         $temp = New-Object System.Object
  29         $temp | Add-Member -MemberType NoteProperty -Name "SamAccountName" -Value $computer.SamAccountName
  30         $temp | Add-Member -MemberType NoteProperty -Name "LastLogon" -Value $dt
  31         $ComputerList.Add($temp) | Out-Null
  32         $time = 0
  33     }
  34     return $ComputerList
  35 }
  36 $myList = Get-LastComputerLogonEvents | Sort-Object LastLogon | FT SamAccountName, LastLogon
  37 Write-Output $myList

Adding DNS records to Windows DNS - For CPTR 446 class

   1 Import-Csv googleips.csv | ForEach-Object {
   2     Add-DnsServerResourceRecordA -Name $_.DNSName -ComputerName dc1.cs.southern.edu  -ZoneName cs.southern.edu $_.IP
   3 }

Setting up a Group Managed Service Account

An account that is automatically managed (e.g. password updates) by the domain. See get-help New-AdServiceAccount

   1 # Adds the required root key to the key distribution service
   2 Add-KdsRootKey -EffectiveTime ((get-date).AddHours(-10))
   3 #Create an account:
   4 New-ADServiceAccount Sql-Srv-Acct -DNSHostName Sql-Srv-Acct.home.scotpatti.com -PrincipalsAllowedToRetrieveManagedPassword "Domain Controllers"
   5 #Install account on rita.home.scotnpatti.com
   6 Install-ADServiceAccount -Identity 'Sql-Srv-Acct'

SCVMM Powershell scripts

I needed this once when I was trying to refresh the Library share. It failed on refresh with an error saying that a DVD was in use and wouldn't refresh until it was no longer in use. The following commands allowed me to identify the machines.

In general all of these need:

   1 Import-Module VirtualMachineManager

Get a list of Virtual Machines that have a DVD attached

   1 Get-SCVMMServer -ComputerName Samuel
   2 Get-SCVirtualMachine | Get-SCVirtualDVDDrive | Where-Object {$_.Connection -eq "ISOImage"} | Select Name, Connection, ISO

List VMs at the end of the semester to be deleted

   1 Get-SCVirtualMachine | Select Name, MarkedAsTemplate, Owner | Sort-Object -Property Owner, Name | Export-Csv -Path .\vms2019w.csv

Get a list of VM Mac Addresses for CPTR 427

   1 Get-SCVirtualMachine | Where-Object { $_.Name -like "*427*" } | select -ExpandProperty VirtualNetworkAdapters | select MacAddress

Get a list of IP address for SCVMM

   1 Get-SCMACAddress -Assigned | Format-Table -Property `
   2 @{label="MAC address"; expression={$_.Name};                  width=18},
   3 @{label="Name";        expression={$_.Description};           width=30},
   4 @{label="IP address";  expression={$a = $_.Address -replace ":", "";
   5                                    $l = Get-DhcpServerv4Lease -ScopeId 10.10.4.0 -ComputerName "ruth" -ClientId $a;
   6                                    $l.IPAddress};             width=16}
   7 
   8 #Get-DhcpServerv4Lease -ScopeId 216.249.119.0 -ComputerName 'csdc01' -ClientId '001DD8B71C28'

List SCVMM VMs/Templates and their Ownership - Change Ownership

   1 Get-SCVMTemplate | ? { $_.Owner -eq "DOMAIN\X" } | Set-SCVMTemplate -Owner "DOMAIN\Y"
   2 Get-SCVirtualMachine | ? { $_.Owner -eq "DOMAIN\X" } | Set-SCVirtualMachine -Owner "X\Y"

List SCVMM VMs/Templates LimitCPUForMigration and Set to allow migration

Note: Setting LimitCPUForMigration = $true means that we are limiting the CPU so that it can migrate to different versions of the same CPU.

   1 Get-SCVMTemplate | ? { $_.LimitCPUForMigration -eq $false } | Set-SCVMTemplate -LimitCPUForMigration $true
   2 Get-SCVirtualMachine | ? { $_.LimitCPUForMigration -eq $false } | Set-SCVirtualMachine -LimitCPUForMigration $true

Setting up a Windows 2019 Server for the first time

  1. Install the server - follow prompts.
  2. Setup the AVMA key as shown below OR use sconfig in the next step.

   1 # Install the AVMA key.
   2 slmgr /ipk TNK62-RXVTB-4P47B-2D623-4GF74
   3 
   4  1. 
   5 
   6 #First run sconfig and setup the name, timezone and network, remote management and remote desktop. You can also setup windows update from here. 
   7 
   8 # Next we need to install Windows update and get it started.
   9 # This will install nuget package too.
  10 Install-Module PSWindowsUpdate
  11 
  12 # Now start the update process
  13 #   First we'll look at what updates are there
  14 Get-WUInstall 
  15 #   Now install them
  16 Install-WindowsUpdate

See the NAT setup near the bottom! That appears to have negated the need to change firewall rules. Also, I was not able to connect to the system via Server Manager right away. But a few minutes later, I could. No changes were made. But for posterity, they are here:

   1 # To turn on or off the firewall 
   2 Get-NetFirewallProfile
   3 # to set firewall on or off
   4 Set-NetFirewallProfile -Name Domain,Public,Private -Enabled True
   5 
   6 #Te get/set the firewall rule for private networks to allow any machine on a private network.
   7 Get-NetFirewallRule | ? {$_.DisplayGroup -like "Windows Remote Management*" -and $_.Profile -like "*Private*"} | Get-NetFirewallAddressFilter #Shows the address filter
   8 Get-NetFirewallRule | ? {$_.DisplayGroup -like "Windows Remote Management*" -and $_.Profile -like "*Private*"} | Set-NetFirewallRule -RemoteAddress 192.168.1.0/24

Using Server Manager, install AD DS

Power shell to list of VM hard drives sizes

   1 $vms = Get-SCVirtualDiskDrive -all
   2 foreach ($v in $vms)
   3 {
   4     $d = $v | select -ExpandProperty VirtualHardDisk
   5     Write-Output "$($v.Name), $($d.Size)"
   6 }

List the amount of memory used by virtual machines

   1 Get-SCVirtualMachine | ForEach-Object { $size += $_.Memory }

Resources:

Power Shell Scripts to create a NAT network (without DHCP) on Windows 10

   1 New-VMSwitch -SwitchName "CPTE230" -SwitchType Internal
   2 Get-VMSwitch #just for show
   3 Get-NetAdapter #get the ifIndex of your vEthernet adapter e.g. 67
   4 New-NetIPAddress -IPAddress 192.168.1.1 -PrefixLength 24 -InterfaceIndex 67 #Using the network ifIndex found above, e.g. 67
   5 New-NetNat -Name CPTE230NAT -InternalIPInterfaceAddressPrefix 192.168.1.0/24 #create the NAT 

Power Shell Script to List Network Adapters on a VM

Note: When looking at the VirtualNetworkAdapterType value, "Emulated" means that it is "legacy" network adapter and "Synthetic" means its a non-legacy adapter.

   1 Get-SCVirtualMachine | ? { $_.Name -like "*pfsense*" } | Get-SCVirtualNetworkAdapter

List VLANs for all CPTR 427 Virtual Machines in System Center

   1 Get-SCVirtualMachine | 
   2     ? { $_.Name -like "*427*" } | 
   3     SELECT Name,@{label="VlanID";expression={($_.VirtualNetworkAdapters).VlanID}} | 
   4     Sort-Object Name | Export-Csv -Path .\VlanData.csv

Revoke all MAC addresses Back to the Pool

This came up as a maintenance issue when we lost some VMs, but not the configurations

   1 $HostGroup = Get-SCVMHostGroup | where { $_.Path -eq "All Hosts\Server2016" }
   2 $MACAddressPool = Get-SCMACAddressPool -VMHostGroup $HostGroup
   3 $MACAddress = Get-SCMACAddress -MACAddressPool $MACAddressPool[0] 
   4 ForEach ($item in $MACAddress) {
   5     Revoke-SCMACAddress $item 
   6 }

Change all VMs to use Dynamic Memory and reduce memory usage

   1 $list = Get-SCVirtualMachine | ? { ($_.Name -like "*427*") -and ($_.DynamicMemoryEnabled -eq $False) }
   2 foreach ($vm in $list) {
   3     if ($vm.Status -ne "PowerOff") {Stop-SCVirtualMachine -VM $vm}
   4     Set-SCVirtualMachine -VM $vm -DynamicMemoryEnabled $True -MemoryMB 1024 -DynamicMemoryMinimumMB 1024 -DynamicMemoryMaximumMB 6144
   5 }

WindowsAdministration/PowerShellScripts (last edited 2021-02-15 01:42:19 by scot)