LeVeilleur.net

VI Toolkit / PowerShell : How to connect to more than one Virtual Center

Christopher Keyaert — Mon, 08 Mar 2010 12:57:45 +0000

Hello All,

First thing, the documentation on VI Toolkit :

http://communities.vmware.com/docs/DOC-4210

If you want to connect to more than one virtual center at the same time, here the starting code :

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$vcs = @()
$vcs += connect-viserver <vc 1>
$vcs += connect-viserver vc><vc 2>
# You could add many as you need...

# Command example : Snapshot all VMs across all VirtualCenter servers.
get-vm -server $vcs | new-snapshot

Be carrefull, the command GET-VM $VCS will not return the same values than GET-VM.
If you use GET-VM, you will receive the VM List only for the Virtucal Center that you connect last. If you want the get all the VM of your different virutal centers, you absolutly need to add the parameter -server $vcs to you command. In a general way, don’t forget to add -server $vcs to every command than you use with the VI Toolkit.

SCOM / PowerShell : Number of locked AD accounts

Christopher Keyaert — Mon, 08 Mar 2010 12:43:17 +0000

Dear All,

Here a new little powershell script that creates an event 6970 in the event viewer when there is more than X accounts locked in less than Y minutes. Now, you just have to create a new rule in SCOM that collect event with the ID6970 and schedule that script to run every 10 minutes.

Thanks to that you can be alert when there is an attack attempt to your Active Directory.

########################################################
#Get the number of lock account in less than 10 minutes
########################################################
###########################
# Param
###########################
$LockedSince = 10 #Minutes
$NumberofLockedAccount = 50 #

###########################
# FUNCTIONS
###########################
###########################
# SCRIPT
###########################
$objDomain = New-Object System.DirectoryServices.DirectoryEntry
$objSearcher = New-Object System.DirectoryServices.DirectorySearcher
$objSearcher.SearchRoot = $objDomain
$objSearcher.PageSize = 1000
$objSearcher.Filter = "(&(objectClass=User)(lockoutTime>=1))"
$colProplist = "name","samaccountname","lockoutTime"

foreach ($i in $colPropList){$objSearcher.PropertiesToLoad.Add($i) | out-null}
$colResults = $objSearcher.FindAll()

$cpt = 0
$result = $null
$result2 = $null

foreach ($objResult in $colResults) {

$domainname = $objDomain.name
$samaccountname = $objResult.Properties.samaccountname

$user = [ADSI]"WinNT://$domainname/$samaccountname"
$ADS_UF_LOCKOUT = 0x00000010
#$objResult.Properties

if(($user.UserFlags.Value -band $ADS_UF_LOCKOUT) -eq $ADS_UF_LOCKOUT) {
$Sam = $objResult.Properties.samaccountname
$Name = $objResult.Properties.name
[String]$LockTime = $objResult.Properties.lockouttime
[datetime] $LockTime = [datetime]::FromFileTime($LockTime)

#We want all the account locked in the last 24h
$DayDate = Get-Date
$DayDateBefore = $DayDate.AddMinutes(-$LockedSince)

if(($LockTime -gt $DayDateBefore) -and ($LockTime -lt $DayDate))
{
Write-Host "************"
Write-Host "User : $sam"
Write-Host "Name : $name"
Write-Host "LockTime : $lockTime"
Write-Host "************"
Write-Host ""

$result2 += "************`r"
$result2 += "User : $sam`r"
$result2 += "Name : $name`r"
$result2 += "LockTime : $lockTime`r"
$result2 += "************`r"
$result2 += "`r"

$cpt += 1
}
}
}

Write-Host "************"
Write-Host "There is $cpt account(s) locked in the last $LockedSince minutes"
Write-Host "************"

$result += "************`r"
$result += "There is $cpt account(s) locked in the last $LockedSince minutes`r"
$result += "************`r"
$result += $result2

if($cpt -ge $NumberofLockedAccount)
{
Write-Host ""
Write-Host "Limit reached, /!\ ALERT /!\"
Write-Host ""
$infoevent=[System.Diagnostics.EventLogEntryType]::Error
}
else{
$infoevent=[System.Diagnostics.EventLogEntryType]::Information
}

############################
#Var for the event creation
############################
$evt = new-object System.Diagnostics.EventLog("Application")
$evt.Source = "AD-SCOM"
$evt.MachineName = "."
$evt.WriteEntry($result,$infoevent,6970)

OpsMgr / SCOM : Automatic Agent Deployment With PowerShell

Christopher Keyaert — Wed, 20 Jan 2010 15:06:55 +0000

Hello everyone,

Some weeks ago, I had to deploy SCOM Agent on more than 350 windows servers at the time. For that, I wrote a PowerShell Script where you just have to give a server list in input and the name of your RMS/MS . And that’s it, the script is performing the agent installation for you. A CSV file will be generated as output with the agent installation status of each servers.

Concerning the right management, you have to ensure that the Default Action Account using on the server that you will use for deploying the agents (MS normally), has administrative right on the servers that you want to add in SCOM. For that, and the duration of the deployment only, use a Domain Admin Account as the Run As Account of your MS/RMS.

The script :

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###########################
# Autor : Christopher Keyaert
# Version : 1.0
# Date : 28 DEC 2009
##########################
#Getting the credential of the user
#$creds = Get-Credential

###########################
#Param
##########################
$RMS = #don't forget to use the FQN RMS001.contoso.local
$MS = #don't forget to use the FQN MS001.contoso.local

$myFile = "D:\Dep\myfile.txt" #List of Servers
$ResultPath = "D:\Dep" #Folder for path output
Start-Transcript -path "$ResultPath\Transcript$(get-date -uformat '%Y-%m-%d_%Hh%Ms%S').log"

$MaintenanceModeEnable = $false

$MaintenanceModeDuration = 10 * 1440 # 1440 minutes per day
$comment = 'Global Deployment'
$reason = 'PlannedOther'

######################
#Functions
#####################
function SetToMaintenanceMode($rootMS,$computerPrincipalName,$minutes,$comment,$reason)
{
$computerPrincipalName = $computerPrincipalName + ".dir.ucb-group.com"
$computerClass = get-monitoringclass -name:Microsoft.Windows.Computer
$healthServiceClass = get-monitoringclass -name:Microsoft.SystemCenter.HealthService
$healthServiceWatcherClass = get-monitoringclass -name:Microsoft.SystemCenter.HealthServiceWatcher
$computerCriteria = "PrincipalName='" + $computerPrincipalName + "'"
$computer = get-monitoringobject -monitoringclass:$computerClass -criteria:$computerCriteria
$healthServices = $computer.GetRelatedMonitoringObjects($healthServiceClass)
$healthService = $healthServices[0]
$healthServiceCriteria = "HealthServiceName='" + $computerPrincipalName + "'"
$healthServiceWatcher = get-monitoringobject -monitoringclass:$healthServiceWatcherClass -criteria:$healthServiceCriteria
$startTime = [System.DateTime]::Now
$endTime = $startTime.AddMinutes($minutes)

Write-host " "
"Putting " + $computerPrincipalName + " into maintenance mode"
New-MaintenanceWindow -startTime:$startTime -endTime:$endTime -monitoringObject:$computer -comment:$comment -Reason:$reason

"Putting the associated health service into maintenance mode"
New-MaintenanceWindow -startTime:$startTime -endTime:$endTime -monitoringObject:$healthService -comment:$comment -Reason:$reason

"Putting the associated health service watcher into maintenance mode"
New-MaintenanceWindow -startTime:$startTime -endTime:$endTime -monitoringObject:$healthServiceWatcher -comment:$comment -Reason:$reason
Write-host " "

}

#################################
#Init the connection to SCOM srv
#################################
if(-not (Get-pssnapin | Where-Object {$_.Name -eq "Microsoft.EnterpriseManagement.OperationsManager.Client"}))
{
Add-PSSnapin Microsoft.EnterpriseManagement.OperationsManager.Client
}
new-managementGroupConnection -ConnectionString:$RMS
Set-Location "OperationsManagerMonitoring::" -ErrorVariable errSnapin ;
Set-Location $RMS -ErrorVariable errSnapin ;

##########################
#Agent installation
##########################
#Creating the computers list
$ComputersList = @()
$ComputersList = Get-Content $myFile

#Define a WindowsDiscoveryConfiguration
$discoConfig = New-WindowsDiscoveryConfiguration –ComputerName: $ComputersList –PerformVerification: $true -ComputerType: "Server" #–ActionAccountCredential: $creds

#Start the discovery process.
$managementServer = Get-ManagementServer | Where-Object {$_.PrincipalName -like "*$MS*"}

$discoResult = Start-Discovery –ManagementServer: $managementServer –WindowsDiscoveryConfiguration: $discoConfig

#Check that the discovery process discovered the Windows computers you specified.
$discoResult.CustomMonitoringObjects

if($discoResult.CustomMonitoringObjects -ne $null)
{
Write-Host "Agent installation in progress..."
Write-Host ""
Install-Agent –ManagementServer $managementServer –AgentManagedComputer $discoResult.CustomMonitoringObjects

Write-host "Installation Finished, waiting for 60 secondes"
Start-Sleep -s 60
}
else{
Write-Host "No servers discovered"
}

####################################################################
#We have to check if all the agent has been well installed + Maintenance mode
#####################################################################
Write-Host ""
Write-Host "Installation Checking"
Write-Host ""

$InstallArray = @()
foreach($srv in $ComputersList)
{
$Value = $null
$Value = Get-agent | Where-Object {$_.ComputerName -like "*$srv*"}

if($Value -ne $null)
{
Write-Host "$srv - Agent installed "
$InstallTime = $Value.InstallTime
$HealthState = $Value.HealthState
$AgentInstalled = $true

#Write-Host "Activation of the Maintenance Mode"
#Put the server in Maintenance Mode
if($MaintenanceModeEnable -eq $true){SetToMaintenanceMode $RMS $srv $MaintenanceModeDuration $comment $reason}

}
else{
Write-Host "$srv - Agent not installed"
$AgentInstalled = $false
$InstallTime = ""
$HealthState = ""
}

$obj = New-Object PSObject
$obj | Add-Member Noteproperty -Name "Name" -Value $srv
$obj | Add-Member Noteproperty -Name "AgentInstall" -Value $AgentInstalled
$obj | Add-Member Noteproperty -Name "InstallTime" -Value $InstallTime
$obj | Add-Member Noteproperty -Name "HealthState" -Value $HealthState
$InstallArray += $obj
}

Write-Host ""
Write-Host "Save the Result File"

$InstallArray | Export-Csv "$ResultPath\$(get-date -uformat '%Y-%m-%d_%Hh%Ms%S').csv"
Stop-Transcript

Quoi de neuf dans SCOM R2

Christopher Keyaert — Thu, 14 Jan 2010 06:01:55 +0000

Voici une vidéo en Français expliquant les différences entre SCOM 2007 et SCOM 2007 R2 :

Source

SCOM2007R2 : not enough entropy when installed Linux Agent

Christopher Keyaert — Thu, 03 Dec 2009 13:01:32 +0000

Here the error message :

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Generating certificate with hostname="xxxxxxxx"
[/home/serviceb/TfsCoreWrkSpcLinux_REDHAT_5.0_x86_64/source/code/tools/scx_ssl_config/scxsslcert.cpp:198]
Failed to allocate resource of type random data: Failed to get random data - not enough entropy
error: %post(scx-1.0.4-248.x86_64) scriptlet failed, exit status 1

<DataItem type="Microsoft.SSH.SSHCommandData" time="2009-12-03T12:08:30.6908778+01:00" sourceHealthServiceId="91A3B596-F820-6A90-305C-6974DA25966D"><SSHCommandData><stdout>Generating certificate with hostname="xxxxxxx"
[/home/serviceb/TfsCoreWrkSpcLinux_REDHAT_5.0_x86_64/source/code/tools/scx_ssl_config/scxsslcert.cpp:198]
Failed to allocate resource of type random data: Failed to get random data - not enough entropy
error: %post(scx-1.0.4-248.x86_64) scriptlet failed, exit status 1

There are two ways to solve this problem, you can recreate the /dev/random file or do a manual agent install.

For both fixes, clean off the partially installed agent using the commands

rpm -e scx
rm -rf /etc/opt/microsoft/scx

Then if you want to make it so that discovery will work from the wizard use the commands

rm /dev/random
mknod -m 644 /dev/random c 1 9
chown root:root /dev/random

A manual install requires copying the appropriate package from %Program Files%\System Center Operations Manager 2007\AgentManagement\UnixAgents to the Unix\Linux machine and installing it directly.

After fixing the install issue, switch the /dev/random file back to a signed random file using the commands:

rm /dev/random
mknod -m 644 /dev/random c 1 8
chown root:root /dev/random

Source : http://blog.xplatxperts.com/xplat-xperts/2009/08/opsmgr-cross-platform-discovery-errors.html

Website is back online

Christopher Keyaert — Tue, 01 Dec 2009 20:54:20 +0000

Hello guys,

After one month offline due to my moving, my Internet connexion is back now :0)

Enjoy
Christopher

Exchange 2007 : Activate Anti-Spam

Christopher Keyaert — Wed, 14 Oct 2009 19:00:48 +0000

Installing Exchange 2007 Anti-spam system

Close the EMC (Exchange Management Console).
Open the PowerShell and navigate using the following path: « Program Files\Microsoft\Exchange Server\Scripts ».
Run the « install-AntispamAgents.ps1″
Restart the « Microsoft Exchange Transport » service in order to apply configuration changes.
Open the Exchange Management Console, and on the Organization configuration list, select Hub Transport.
The « Anti-Spam » tab has been added to the Hub Transport properties.

http://www.petri.co.il/install-anti-spam-exchange-2007.htm

PowerShell : Upload file to WebDav Server

Christopher Keyaert — Fri, 14 Aug 2009 08:04:10 +0000

A new PowerShell for upload one file to a WebDav Server

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########################################
#Webdav Access with PowerShell
########################################

#Put the complete path of your file
$file = "D:\test.txt"

#Put the url without the last "/"
$url = "http://mywebSite/webdav"

#Provide User and Pwd for Webdav Access
$user = "user"
$pass = "pwd"

########################################
#Script
#######################################

#Adding the name of the file at the end of the URL
$url += "/" + $file.split('\')[(($file.split("\")).count - 1)]

#Connecting to WebDav
Write-Host "File upload started"

# Set binary file type
Set-Variable -name adFileTypeBinary -value 1 -option Constant

$objADOStream = New-Object -ComObject ADODB.Stream
$objADOStream.Open()
$objADOStream.Type = $adFileTypeBinary
$objADOStream.LoadFromFile("$file")
$arrbuffer = $objADOStream.Read()

$objXMLHTTP = New-Object -ComObject MSXML2.ServerXMLHTTP
$objXMLHTTP.Open("PUT", $url, $False, $user, $pass)
$objXMLHTTP.send($arrbuffer)

Write-Host "File upload finished"

Honey Moon and Weeding Pictures

Christopher Keyaert — Mon, 10 Aug 2009 09:44:18 +0000

Les photos sont disponibles dans la partie Galerie Photos du site :

http://www.leveilleur.net/index.php/galerie-photos/

Iphone : Problème de réception d’appels entrants

Christopher Keyaert — Thu, 23 Jul 2009 23:45:43 +0000

Hello tout le monde,

Je pense avoir trouvé la solution à mon problème de non réception des appels entrants lorsque je suis dans une zone non 3G (donc avec l’icone ronde)….En fait on tombait directement sur mon répondeur lorsque l’on essayait de m’appeler…. le problème était bien lié au push….mais pas celui du mail. Pour ma part, j’avais bien désactivé le push mail comme lu sur plusieurs forums, mais il faut savoir qu’il n’y a pas que les emails qui utilisent le push…. par exemple, les applications comme ebuddy (permet d’avoir msn,…sur son iphone), lemonde.fr et etc….

Dans mon cas, j’utilisais le systeme de notifications de ebuddy (qui en fait, fait du Push), donc dans Réglages, Notifications, j’ai mis en Non et depuis, plus de problème, je reçois bien mes appels lorsque je suis sur un réseau 2G (icone avec le petit rond)…..

Je tiens à précisier que lorsque l’on est sur un réseau 3G (sans forcément avoir du Data, mais l’icone 3G est présente), on peut laisser le push activer (pour les emails, ebuddy et etc…) et bien recevoir des appels entrants…mais vous ne pourrez plus recevoir des appels entrants lorsque vous repasserez dans une zone non couverte en 3G.

Donc, à tout ceux qui ont le problème, je leur conseille de désactiver le push mail et de tester leur iphone sans aucune application (dans Itunes, décocher la case Synchroniser applications), Ensuite tester applications par applications jusqu’à trouver celle qui utilise du push et qui fait donc apparaitre ce problème.