ActiveDirectorySitesandSubnetsReport.ps1
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Script
<#
Active Directory Sites and Subnets Report
Release 1.0 Written by [email protected] 13th September 2013
#>
#-------------------------------------------------------------
# Get the script path
$ScriptPath = { Split-Path $MyInvocation.ScriptName }
$SitesReport = $(&$ScriptPath) + "\ActiveDirectorySitesReport.csv"
$SubnetsReport = $(&$ScriptPath) + "\ActiveDirectorySubnetsReport.csv"
#-------------------------Site Report-------------------------
# This module was Written by Brian Seltzer
# List Sites and Subnets in Active Directory using PowerShell
# http://www.itadmintools.com/2011/08/list-sites-and-subnets-in-active.html
$siteDescription = @{}
$siteSubnets = @{}
$sitesDN = "LDAP://CN=Sites," + $([adsi] "LDAP://RootDSE").Get("ConfigurationNamingContext")
$subnetsDN = "LDAP://CN=Subnets,CN=Sites," + $([adsi] "LDAP://RootDSE").Get("ConfigurationNamingContext")
#get the site names and descriptions
foreach ($site in $([adsi] $sitesDN).psbase.children) {
if ($site.objectClass -eq "site") {
$siteName = ([string]$site.cn).toUpper()
$siteDescription[$siteName] = $site.Description
$siteSubnets[$siteName] = @()
}
}
#get the subnets and associate them with the sites
foreach ($subnet in $([adsi] $subnetsDN).psbase.children) {
$site = [adsi] "LDAP://$($subnet.siteObject)"
if ($null -ne $site.cn) {
$siteName = ([string]$site.cn).toUpper()
$siteSubnets[$siteName] += $subnet.cn
}
else {
$siteDescription["Orphaned"] = "Subnets not associated with any site"
if ($null -eq $siteSubnets["Orphaned"]) { $siteSubnets["Orphaned"] = @() }
$siteSubnets["Orphaned"] += $subnet.cn
}
}
#write output to screen
foreach ($siteName in $siteDescription.keys | Sort-Object) {
"$siteName $($siteDescription[$siteName])"
foreach ($subnet in $siteSubnets[$siteName]) {
"`t$subnet"
}
}
#-------------------------Site Report-------------------------
$allsites = @()
$sitesDN = "LDAP://CN=Sites," + $([adsi] "LDAP://RootDSE").Get("ConfigurationNamingContext")
#get the site names and descriptions
foreach ($site in $([adsi] $sitesDN).psbase.children) {
if ($site.objectClass -eq "site") {
$data = "" | Select-Object Name, Description, Location
$data.Name = $($site.Name)
$data.Description = $($site.Description)
$data.Location = $($site.Location)
$allsites += $data
}
}
Write-Host -ForegroundColor Green $allsites.count "sites have been exported to $SitesReport"
$allsites | Sort-Object -Property Name | Export-Csv -NoTypeInformation "$SitesReport"
# Remove the quotes
(Get-Content "$SitesReport") | ForEach-Object { $_ -replace '"', "" } | Out-File "$SitesReport" -Force -Encoding ascii
#-----------------------Subnet Report-------------------------
$allsubnets = @()
$subnetsDN = "LDAP://CN=Subnets,CN=Sites," + $([adsi] "LDAP://RootDSE").Get("ConfigurationNamingContext")
foreach ($subnet in $([adsi] $subnetsDN).psbase.children) {
$net = [ADSI]"$($subnet.Path)"
$data = "" | Select-Object Site, Name, Description, Location
If ($($net.cn).Contains("CNF:") -eq $False) {
$data.name = $($net.cn)
}
else {
$data.name = [string]::join("\0A", ($($net.cn).Split("`n")))
}
$data.Location = $($net.location)
$data.Description = $($net.description)
If ($null -ne $net.siteobject) {
$st = $($net.siteobject).split(",")
$data.site = $st[0].Replace("CN=", "")
}
Else {
$st = "*Orphaned"
$data.site = $st
}
$allsubnets += $data
}
Write-Host -ForegroundColor Green $allsubnets.count "subnets have been exported to $SubnetsReport"
$allsubnets | Sort-Object Site | Export-Csv -NoTypeInformation "$SubnetsReport"
# Remove the quotes
(Get-Content "$SubnetsReport") | ForEach-Object { $_ -replace '"', "" } | out-file "$SubnetsReport" -Force -Encoding ascii
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