Audit uptime of all servers
Monitoring servers is an important thing, almost uptime of all servers. You should have some dedicated tools such as Zabbix, Nagios, etc… BUT ! Here is a script to generate an HTML report of all your servers uptime.
Those servers are all registered into AD and the ‘get’ is based on the operating system detected by AD.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 | #Function #Get-Update - Return lastboottime and update - input : servername Function Get-Uptime { [CmdletBinding()] param ( [Parameter(Mandatory=$false, Position=0, ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true)] [Alias("Name")] [string[]]$ComputerName=$env:COMPUTERNAME, $Credential = [System.Management.Automation.PSCredential]::Empty ) begin{} #Need to verify that the hostname is valid in DNS process { foreach ($Computer in $ComputerName) { try { $hostdns = [System.Net.DNS]::GetHostEntry($Computer) $OS = Get-WmiObject win32_operatingsystem -ComputerName $Computer -ErrorAction Stop -Credential $Credential $BootTime = $OS.ConvertToDateTime($OS.LastBootUpTime) $Uptime = $OS.ConvertToDateTime($OS.LocalDateTime) - $boottime $propHash = [ordered]@{ ComputerName = $Computer BootTime = $BootTime Uptime = $Uptime } $objComputerUptime = New-Object PSOBject -Property $propHash $objComputerUptime } catch [Exception] { #Write-Output "$computer $($_.Exception.Message)" $propHash = [ordered]@{ ComputerName = $Computer BootTime = "Unavailable" Uptime = "Unavailable" } $objComputerUptime = New-Object PSOBject -Property $propHash $objComputerUptime #return } } } end{} } <span style="color: #ff0000;">#Variables $OutputFile="C:\Scripts\Tools\GetAllServersUptime.csv" $UptimeHTMLReport="C:\Scripts\Tools\UptimeCheckServer.html" $MailTo="" $MailFrom="" $SmtpServer=""</span> #MAIN #Deleting all result files If(Test-Path $OutputFile){ Remove-item $OutputFile -confirm:$false -force } If(Test-Path $UptimeHTMLReport){ Remove-item $UptimeHTMLReport -confirm:$false -force } Add-Content -path $OutputFile -value "ServerName,LastBootTime,Uptime" #Fetching list of all Servers in AD $Serverlist=Get-ADComputer -Properties * -filter {OperatingSystem -like "*Server*"} $htmltableheader = ' <style type="text/css"> .myTable { background-color:#FFFFE0;border-collapse:collapse;font-family:Georgia, Garamond, Serif;color:black; } .myTable th { font:bold 18px/1.1em Arial, Helvetica, Sans-Serif;text-shadow: 1px 1px 4px black;letter-spacing:0.3em;background-color:#BDB76B;color:white; } .myTable td, .myTable th { padding:5px;border:1px solid #BDB76B; } .myTable td { line-height:2.5em; } </style> <h3 align="Center">Uptime Check Status</h3> <p> <table class="myTable" align="Center"> <tr> <th align="Center" width="60">Status</th> <th align="Center">Server</th> <th align="Center">LastBoot</th> <th align="Center">Uptime</th> </tr>' Add-content $UptimeHTMLReport -value $htmltableheader $imgsrc='<img src ="http://apps.campusops.oregonstate.edu/emergency/images/EmerPrep/alertlight.png" width="40" height="40">' $ImageKO='<img src ="https://openclipart.org/download/285479/Thumbs-down-Circle.svg" width="40" height="40">' $ImageOK='<img src ="https://upload.wikimedia.org/wikipedia/commons/thumb/0/03/Green_check.svg/480px-Green_check.svg.png" width="40" height="40">' $ImageAVG='<img src ="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTRN2qS4vBKcDpgdIcxMOIVWDcoxS0w8a6t8jV62zdXKyMIhFRXPw" width="40" height="40">' #Processing $ServerList | Foreach-object{ $Servername=$_.Name Write-host "$ServerName - " -nonewline $GetUptime=Get-Uptime $ServerName If($GetUptime.Uptime -ne "Unavailable"){ $LastBoot=$GetUptime.BootTime $Uptime=$GetUptime.Uptime [int]$UptimeDays=$GetUptime.Uptime.Days } If($GetUptime.Uptime -eq "Unavailable"){ $LastBoot="Unavailable" [string]$Uptime="Unavailable" [string]$UptimeDays="Unavailable" } Add-content -path $OutputFile -value "$ServerName,$LastBoot,$Uptime" If(($UptimeDays -gt 90) -and ($UptimeDays -lt 150) -and ($Uptime -ne "Unavailable")){ $UptimeDays=$Uptime.Days Add-Content -path $UptimeHTMLReport -value "<tr> <td align='Center'>$ImageAVG</td> <td align='Center' bgcolor=yellow>$ServerName</td> <td align='Center' bgcolor=yellow>$LastBoot</td> <td align='Center' bgcolor=yellow>$UptimeDays</td> </tr>" } If(($UptimeDays -ge 150) -and ($UptimeDays -ne "Unavailable")){ Write-host "$UptimeDays" -foregroundcolor:Red Add-Content -path $UptimeHTMLReport -value "<tr> <td align='center' >$imgsrc</td> <td align='Center' bgcolor=red>$ServerName</td> <td align='Center' bgcolor=red>$LastBoot</td> <td align='Center' bgcolor=red>$UptimeDays</td> </tr>" } If(($UptimeDays -lt 90) -and ($UptimeDays -ne "Unavailable")){ Write-host "$UptimeDays" Add-Content -path $UptimeHTMLReport -value "<tr> <td align='Center'>$ImageOK</td> <td align='Center' bgcolor=green>$ServerName</td> <td align='Center' bgcolor=green>$LastBoot</td> <td align='Center' bgcolor=green>$UptimeDays</td> </tr>" } If($UptimeDays -eq "Unavailable"){ Write-host "Unavailable" -foregroundcolor:yellow -backgroundcolor:blue Add-Content -path $UptimeHTMLReport -value "<tr> <td align='Center'>$ImageKO</td> <td align='Center'>$ServerName</td> <td align='Center'>$LastBoot</td> <td align='Center'>N/A</td> </tr>" } } Add-Content -path $UptimeHTMLReport -value "</table>" Write-host "OK" -foregroundcolor:Green $htmlreport=Get-content $UptimeHTMLReport | out-string Send-MailMessage -SmtpServer $SmtpServer -To $MailTo -From $MailFrom -Body $htmlreport -BodyAsHtml -Encoding ([System.Text.Encoding]::UTF8) -subject "[UPTIME] Audit Servers" -Attachments $UptimeHTMLReport |
Don’t forget to modify those lines :
$OutputFile=”C:\Scripts\Tools\GetAllServersUptime.csv” $UptimeHTMLReport=”C:\Scripts\Tools\UptimeCheckServer.html” $MailTo=””
$MailFrom=””
$SmtpServer=””
And enjoy !