Automated health checks of Domain controllers using powershell script with reports

22:07:00 | Posted by rohan choudhari | 0 comments
We all face many errors related to replication of multiple windows servers placed at different geographic locations  , the solution is to take pre-emptive measures is to put a automated script which will keep running health checks on all our domain controllers on regular basis to keep emailing us the graphical report so that we will know errors if any and we could be able to rectify it so long before disaster happens ! ;)
after some googling we found out very brilliant powershell script [I will post link with due credits to blog once i found who the original author is ] we modified it according to our needs .

An automated PowerShell script [ ADHealthCheck.ps1] was been created / customized by me and added to windows task scheduler to run all DC health checks periodically and to send a status report over mail as attachment on Monday and Friday at 10 am to sysadmin@example.com 

Its information set in Windows Task Scheduler is as follows :

ADHealthCheck  run at 9.55 AM every Monday , Friday of Every Week 

sendEmail          will run at 10.00 AM every Monday , Friday of Every Week .

script was as follows :


#############################################################################
#   
#   
#       Date:
#       Satus: Ping,Netlogon,NTDS,DNS,DCdiag Test(Replication,sysvol,Services)
#       Update: Added Advertising
#       Description: AD Health Status
#############################################################################
###########################Define Variables##################################

$reportpath = ".\ADReport.htm"

if((test-path $reportpath) -like $false)
{
new-item $reportpath -type file
}
$smtphost = "smtp.example.com"
$from = "sysadmin@example.com"
$email1 = "user@example.com"
$timeout = "60"

###############################HTml Report Content############################
$report = $reportpath

Clear-Content $report
Add-Content $report "<html>"
Add-Content $report "<head>"
Add-Content $report "<meta http-equiv='Content-Type' content='text/html; charset=iso-8859-1'>"
Add-Content $report '<title>AD Status Report for XYZ Domain </title>'
add-content $report '<STYLE TYPE="text/css">'
add-content $report  "<!--"
add-content $report  "td {"
add-content $report  "font-family: Tahoma;"
add-content $report  "font-size: 11px;"
add-content $report  "border-top: 1px solid #999999;"
add-content $report  "border-right: 1px solid #999999;"
add-content $report  "border-bottom: 1px solid #999999;"
add-content $report  "border-left: 1px solid #999999;"
add-content $report  "padding-top: 0px;"
add-content $report  "padding-right: 0px;"
add-content $report  "padding-bottom: 0px;"
add-content $report  "padding-left: 0px;"
add-content $report  "}"
add-content $report  "body {"
add-content $report  "margin-left: 5px;"
add-content $report  "margin-top: 5px;"
add-content $report  "margin-right: 0px;"
add-content $report  "margin-bottom: 10px;"
add-content $report  ""
add-content $report  "table {"
add-content $report  "border: thin solid #000000;"
add-content $report  "}"
add-content $report  "-->"
add-content $report  "</style>"
Add-Content $report "</head>"
Add-Content $report "<body>"
add-content $report  "<table width='100%'>"
add-content $report  "<tr bgcolor='Lavender'>"
add-content $report  "<td colspan='7' height='25' align='center'>"
add-content $report  "<font face='tahoma' color='#003399' size='4'><strong>Active Directory Health Check for CDACMUMBAI Domain by ITSS </strong></font>"
add-content $report  "</td>"
add-content $report  "</tr>"
add-content $report  "</table>"

add-content $report  "<table width='100%'>"
Add-Content $report  "<tr bgcolor='IndianRed'>"
Add-Content $report  "<td width='5%' align='center'><B>Identity</B></td>"
Add-Content $report  "<td width='10%' align='center'><B>PingSTatus</B></td>"
Add-Content $report  "<td width='10%' align='center'><B>NetlogonService</B></td>"
Add-Content $report  "<td width='10%' align='center'><B>NTDSService</B></td>"
Add-Content $report  "<td width='10%' align='center'><B>DNSServiceStatus</B></td>"
Add-Content $report  "<td width='10%' align='center'><B>NetlogonsTest</B></td>"
Add-Content $report  "<td width='10%' align='center'><B>ReplicationTest</B></td>"
Add-Content $report  "<td width='10%' align='center'><B>ServicesTest</B></td>"
Add-Content $report  "<td width='10%' align='center'><B>AdvertisingTest</B></td>"
Add-Content $report  "<td width='10%' align='center'><B>FSMOCheckTest</B></td>"

Add-Content $report "</tr>"

#####################################Get ALL DC Servers#################################
$getForest = [system.directoryservices.activedirectory.Forest]::GetCurrentForest()

$DCServers = $getForest.domains | ForEach-Object {$_.DomainControllers} | ForEach-Object {$_.Name}


################Ping Test######

foreach ($DC in $DCServers){
$Identity = $DC
                Add-Content $report "<tr>"
if ( Test-Connection -ComputerName $DC -Count 1 -ErrorAction SilentlyContinue ) {
Write-Host $DC `t $DC `t Ping Success -ForegroundColor Green

        Add-Content $report "<td bgcolor= 'GainsBoro' align=center>  <B> $Identity</B></td>"
                Add-Content $report "<td bgcolor= 'Aquamarine' align=center>  <B>Success</B></td>"

                ##############Netlogon Service Status################
        $serviceStatus = start-job -scriptblock {get-service -ComputerName $($args[0]) -Name "Netlogon" -ErrorAction SilentlyContinue} -ArgumentList $DC
                wait-job $serviceStatus -timeout $timeout
                if($serviceStatus.state -like "Running")
                {
                 Write-Host $DC `t Netlogon Service TimeOut -ForegroundColor Yellow
                 Add-Content $report "<td bgcolor= 'Yellow' align=center><B>NetlogonTimeout</B></td>"
                 stop-job $serviceStatus
                }
                else
                {
                $serviceStatus1 = Receive-job $serviceStatus
                 if ($serviceStatus1.status -eq "Running") {
            Write-Host $DC `t $serviceStatus1.name `t $serviceStatus1.status -ForegroundColor Green
                $svcName = $serviceStatus1.name
                $svcState = $serviceStatus1.status        
                Add-Content $report "<td bgcolor= 'Aquamarine' align=center><B>$svcState</B></td>"
                  }
                 else
                  {
                 Write-Host $DC `t $serviceStatus1.name `t $serviceStatus1.status -ForegroundColor Red
               $svcName = $serviceStatus1.name
               $svcState = $serviceStatus1.status        
               Add-Content $report "<td bgcolor= 'Red' align=center><B>$svcState</B></td>"
                  }
                }
               ######################################################
                ##############NTDS Service Status################
        $serviceStatus = start-job -scriptblock {get-service -ComputerName $($args[0]) -Name "NTDS" -ErrorAction SilentlyContinue} -ArgumentList $DC
                wait-job $serviceStatus -timeout $timeout
                if($serviceStatus.state -like "Running")
                {
                 Write-Host $DC `t NTDS Service TimeOut -ForegroundColor Yellow
                 Add-Content $report "<td bgcolor= 'Yellow' align=center><B>NTDSTimeout</B></td>"
                 stop-job $serviceStatus
                }
                else
                {
                $serviceStatus1 = Receive-job $serviceStatus
                 if ($serviceStatus1.status -eq "Running") {
            Write-Host $DC `t $serviceStatus1.name `t $serviceStatus1.status -ForegroundColor Green
                $svcName = $serviceStatus1.name
                $svcState = $serviceStatus1.status        
                Add-Content $report "<td bgcolor= 'Aquamarine' align=center><B>$svcState</B></td>"
                  }
                 else
                  {
                 Write-Host $DC `t $serviceStatus1.name `t $serviceStatus1.status -ForegroundColor Red
               $svcName = $serviceStatus1.name
               $svcState = $serviceStatus1.status        
               Add-Content $report "<td bgcolor= 'Red' align=center><B>$svcState</B></td>"
                  }
                }
               ######################################################
                ##############DNS Service Status################
        $serviceStatus = start-job -scriptblock {get-service -ComputerName $($args[0]) -Name "DNS" -ErrorAction SilentlyContinue} -ArgumentList $DC
                wait-job $serviceStatus -timeout $timeout
                if($serviceStatus.state -like "Running")
                {
                 Write-Host $DC `t DNS Server Service TimeOut -ForegroundColor Yellow
                 Add-Content $report "<td bgcolor= 'Yellow' align=center><B>DNSTimeout</B></td>"
                 stop-job $serviceStatus
                }
                else
                {
                $serviceStatus1 = Receive-job $serviceStatus
                 if ($serviceStatus1.status -eq "Running") {
            Write-Host $DC `t $serviceStatus1.name `t $serviceStatus1.status -ForegroundColor Green
                $svcName = $serviceStatus1.name
                $svcState = $serviceStatus1.status        
                Add-Content $report "<td bgcolor= 'Aquamarine' align=center><B>$svcState</B></td>"
                  }
                 else
                  {
                 Write-Host $DC `t $serviceStatus1.name `t $serviceStatus1.status -ForegroundColor Red
               $svcName = $serviceStatus1.name
               $svcState = $serviceStatus1.status        
               Add-Content $report "<td bgcolor= 'Red' align=center><B>$svcState</B></td>"
                  }
                }
               ######################################################

               ####################Netlogons status##################
               add-type -AssemblyName microsoft.visualbasic
               $cmp = "microsoft.visualbasic.strings" -as [type]
               $sysvol = start-job -scriptblock {dcdiag /test:netlogons /s:$($args[0])} -ArgumentList $DC
               wait-job $sysvol -timeout $timeout
               if($sysvol.state -like "Running")
               {
               Write-Host $DC `t Netlogons Test TimeOut -ForegroundColor Yellow
               Add-Content $report "<td bgcolor= 'Yellow' align=center><B>NetlogonsTimeout</B></td>"
               stop-job $sysvol
               }
               else
               {
               $sysvol1 = Receive-job $sysvol
               if($cmp::instr($sysvol1, "passed test NetLogons"))
                  {
                  Write-Host $DC `t Netlogons Test passed -ForegroundColor Green
                  Add-Content $report "<td bgcolor= 'Aquamarine' align=center><B>NetlogonsPassed</B></td>"
                  }
               else
                  {
                  Write-Host $DC `t Netlogons Test Failed -ForegroundColor Red
                  Add-Content $report "<td bgcolor= 'Red' align=center><B>NetlogonsFail</B></td>"
                  }
                }
               ########################################################
               ####################Replications status##################
               add-type -AssemblyName microsoft.visualbasic
               $cmp = "microsoft.visualbasic.strings" -as [type]
               $sysvol = start-job -scriptblock {dcdiag /test:Replications /s:$($args[0])} -ArgumentList $DC
               wait-job $sysvol -timeout $timeout
               if($sysvol.state -like "Running")
               {
               Write-Host $DC `t Replications Test TimeOut -ForegroundColor Yellow
               Add-Content $report "<td bgcolor= 'Yellow' align=center><B>ReplicationsTimeout</B></td>"
               stop-job $sysvol
               }
               else
               {
               $sysvol1 = Receive-job $sysvol
               if($cmp::instr($sysvol1, "passed test Replications"))
                  {
                  Write-Host $DC `t Replications Test passed -ForegroundColor Green
                  Add-Content $report "<td bgcolor= 'Aquamarine' align=center><B>ReplicationsPassed</B></td>"
                  }
               else
                  {
                  Write-Host $DC `t Replications Test Failed -ForegroundColor Red
                  Add-Content $report "<td bgcolor= 'Red' align=center><B>ReplicationsFail</B></td>"
                  }
                }
               ########################################################
           ####################Services status##################
               add-type -AssemblyName microsoft.visualbasic
               $cmp = "microsoft.visualbasic.strings" -as [type]
               $sysvol = start-job -scriptblock {dcdiag /test:Services /s:$($args[0])} -ArgumentList $DC
               wait-job $sysvol -timeout $timeout
               if($sysvol.state -like "Running")
               {
               Write-Host $DC `t Services Test TimeOut -ForegroundColor Yellow
               Add-Content $report "<td bgcolor= 'Yellow' align=center><B>ServicesTimeout</B></td>"
               stop-job $sysvol
               }
               else
               {
               $sysvol1 = Receive-job $sysvol
               if($cmp::instr($sysvol1, "passed test Services"))
                  {
                  Write-Host $DC `t Services Test passed -ForegroundColor Green
                  Add-Content $report "<td bgcolor= 'Aquamarine' align=center><B>ServicesPassed</B></td>"
                  }
               else
                  {
                  Write-Host $DC `t Services Test Failed -ForegroundColor Red
                  Add-Content $report "<td bgcolor= 'Red' align=center><B>ServicesFail</B></td>"
                  }
                }
               ########################################################
           ####################Advertising status##################
               add-type -AssemblyName microsoft.visualbasic
               $cmp = "microsoft.visualbasic.strings" -as [type]
               $sysvol = start-job -scriptblock {dcdiag /test:Advertising /s:$($args[0])} -ArgumentList $DC
               wait-job $sysvol -timeout $timeout
               if($sysvol.state -like "Running")
               {
               Write-Host $DC `t Advertising Test TimeOut -ForegroundColor Yellow
               Add-Content $report "<td bgcolor= 'Yellow' align=center><B>AdvertisingTimeout</B></td>"
               stop-job $sysvol
               }
               else
               {
               $sysvol1 = Receive-job $sysvol
               if($cmp::instr($sysvol1, "passed test Advertising"))
                  {
                  Write-Host $DC `t Advertising Test passed -ForegroundColor Green
                  Add-Content $report "<td bgcolor= 'Aquamarine' align=center><B>AdvertisingPassed</B></td>"
                  }
               else
                  {
                  Write-Host $DC `t Advertising Test Failed -ForegroundColor Red
                  Add-Content $report "<td bgcolor= 'Red' align=center><B>AdvertisingFail</B></td>"
                  }
                }
               ########################################################
           ####################FSMOCheck status##################
               add-type -AssemblyName microsoft.visualbasic
               $cmp = "microsoft.visualbasic.strings" -as [type]
               $sysvol = start-job -scriptblock {dcdiag /test:FSMOCheck /s:$($args[0])} -ArgumentList $DC
               wait-job $sysvol -timeout $timeout
               if($sysvol.state -like "Running")
               {
               Write-Host $DC `t FSMOCheck Test TimeOut -ForegroundColor Yellow
               Add-Content $report "<td bgcolor= 'Yellow' align=center><B>FSMOCheckTimeout</B></td>"
               stop-job $sysvol
               }
               else
               {
               $sysvol1 = Receive-job $sysvol
               if($cmp::instr($sysvol1, "passed test FsmoCheck"))
                  {
                  Write-Host $DC `t FSMOCheck Test passed -ForegroundColor Green
                  Add-Content $report "<td bgcolor= 'Aquamarine' align=center><B>FSMOCheckPassed</B></td>"
                  }
               else
                  {
                  Write-Host $DC `t FSMOCheck Test Failed -ForegroundColor Red
                  Add-Content $report "<td bgcolor= 'Red' align=center><B>FSMOCheckFail</B></td>"
                  }
                }
               ########################################################
               
}
else
              {
Write-Host $DC `t $DC `t Ping Fail -ForegroundColor Red
        Add-Content $report "<td bgcolor= 'GainsBoro' align=center>  <B> $Identity</B></td>"
                Add-Content $report "<td bgcolor= 'Red' align=center>  <B>Ping Fail</B></td>"
        Add-Content $report "<td bgcolor= 'Red' align=center>  <B>Ping Fail</B></td>"
        Add-Content $report "<td bgcolor= 'Red' align=center>  <B>Ping Fail</B></td>"
        Add-Content $report "<td bgcolor= 'Red' align=center>  <B>Ping Fail</B></td>"
        Add-Content $report "<td bgcolor= 'Red' align=center>  <B>Ping Fail</B></td>"
        Add-Content $report "<td bgcolor= 'Red' align=center>  <B>Ping Fail</B></td>"
        Add-Content $report "<td bgcolor= 'Red' align=center>  <B>Ping Fail</B></td>"
        Add-Content $report "<td bgcolor= 'Red' align=center>  <B>Ping Fail</B></td>"
        Add-Content $report "<td bgcolor= 'Red' align=center>  <B>Ping Fail</B></td>"
}        
      
}

Add-Content $report "</tr>"
############################################Close HTMl Tables###########################


Add-content $report  "</table>"
Add-Content $report "</body>"
Add-Content $report "</html>"


########################################################################################
#############################################Send Email#################################


$subject = "Active Directory Health Monitor"
$body = Get-Content ".\ADreport.htm"
$smtp= New-Object System.Net.Mail.SmtpClient $smtphost
$msg = New-Object System.Net.Mail.MailMessage
$msg.To.Add($email1)
$msg.from = $from
$msg.subject = $subject
$msg.body = $body
$msg.isBodyhtml = $true
$smtp.send($msg)

########################################################################################

########################################################################################

           
        
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