Category: Citrix Page 6 of 10

# A script to check SSL thumbprints on your Citrix hypervisor connections. This will get all of the thumbprints of your connectors and will get the SSL thumbprints of your vCenters if you happen to have more than one.
# This is for running on in-premise Citrix farm (7.x) on a Delivery Controller with 10.1.0 VMware.PowerCLI module and the Citrix SDK installed with VMware ESXi 7.0U1 or later. This also is ran in ISE. Get-SSLThumbprint function is from https://gist.github.com/lamw/988e4599c0f88d9fc25c9f2af8b72c92
# with the return $SSL_THUMBPRINT -replace '(..(?!$))','$1' changed from ending in '$1:' The instructions for changing the SSL thumbprint can be found at https://support.citrix.com/article/CTX224551. 

asnp Citrix*

Function Get-SSLThumbprint {
    param(
    [Parameter(
        Position=0,
        Mandatory=$true,
        ValueFromPipeline=$true,
        ValueFromPipelineByPropertyName=$true)
    ]
    [Alias('FullName')]
    [String]$URL
    )

add-type @"
        using System.Net;
        using System.Security.Cryptography.X509Certificates;
            public class IDontCarePolicy : ICertificatePolicy {
            public IDontCarePolicy() {}
            public bool CheckValidationResult(
                ServicePoint sPoint, X509Certificate cert,
                WebRequest wRequest, int certProb) {
                return true;
            }
        }
"@
    [System.Net.ServicePointManager]::CertificatePolicy = new-object IDontCarePolicy

    # Need to connect using simple GET operation for this to work
    Invoke-RestMethod -Uri $URL -Method Get | Out-Null

    $ENDPOINT_REQUEST = [System.Net.Webrequest]::Create("$URL")
    $SSL_THUMBPRINT = $ENDPOINT_REQUEST.ServicePoint.Certificate.GetCertHashString()

    return $SSL_THUMBPRINT -replace '(..(?!$))','$1'
}


$xdConnections = Get-ChildItem XDHyp:\Connections | Select HypervisorConnectionName, HypervisorAddress, SslThumbprints

$xdThumbprints = @()

foreach($xdc in $xdConnections) 
    {
    $line = ""| Select HypervisorConnectionName, HypervisorAddress, SslThumbprints, vCenterThumbprints, SameThumbprint
              
    $line.HypervisorConnectionName = ($xdc).HypervisorConnectionName
    $line.HypervisorAddress        = ($xdc).HypervisorAddress | Out-String
    $line.SslThumbprints           = ($xdc).SslThumbprints | Out-String
    $line.vCenterThumbprints       = Get-SSLThumbprint (($xdc).HypervisorAddress | Out-String)
    $line.SameThumbprint           = ($line.SslThumbprints -match $line.vCenterThumbprints)

    $xdThumbprints += $line
        
    }

$xdThumbprints | Export-Csv c:\scripts\logs\sslthumbprints.csv