SELECT * FROM curl_certificate WHERE hostname IN (SELECT DISTINCT 'localhost:'||port FROM listening_ports WHERE protocol=6 AND address!='127.0.0.1' AND address!='::1');

function Get-CurlCertificate {
    param(
        [string]$hostname,
        [int]$port
    )
    try {
        $tcpClient = New-Object System.Net.Sockets.TcpClient
        $tcpClient.Connect($hostname, $port)
        $networkStream = $tcpClient.GetStream()
        $sslStream = New-Object System.Net.Security.SslStream($networkStream, $false, { return $true })
        $sslStream.ReadTimeout = 5000
        $sslStream.WriteTimeout = 5000
        $sslStream.AuthenticateAsClient($hostname)
        $remoteCert = $sslStream.RemoteCertificate
        if ($remoteCert) {
            $cert = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2 $remoteCert
            [PSCustomObject]@{
                Hostname   = "$hostname`:$port"
                Subject    = $cert.Subject
                Issuer     = $cert.Issuer
                NotBefore  = $cert.NotBefore
                NotAfter   = $cert.NotAfter
                Thumbprint = $cert.Thumbprint
            }
        }
        else {
            [PSCustomObject]@{
                Hostname   = "$hostname`:$port"
                Error      = "No certificate returned"
            }
        }
        $sslStream.Close()
        $tcpClient.Close()
    }
    catch {
        [PSCustomObject]@{
            Hostname = "$hostname`:$port"
            Error    = "Failed to retrieve certificate - $_"
        }
    }
}

# Get distinct TCP listening ports where local address is not 127.0.0.1 or ::1
$ports = Get-NetTCPConnection -State Listen -Protocol TCP |
    Where-Object { $_.LocalAddress -ne "127.0.0.1" -and $_.LocalAddress -ne "::1" } |
    Select-Object -ExpandProperty LocalPort -Unique

foreach ($port in $ports) {
    # Use "localhost" as the hostname to match the pattern "localhost:port"
    $result = Get-CurlCertificate -hostname "localhost" -port $port
    $result
}

echo "Hostname,Subject,Issuer"; netstat -an | grep LISTEN | grep -v '127.0.0.1' | grep -v '::1' | awk '{print $4}' | sed -E 's/.*\.//' | sort -u | while read port; do cert=$(echo | openssl s_client -connect localhost:$port -servername localhost 2>/dev/null | openssl x509 -noout -subject -issuer 2>/dev/null); subject=$(echo "$cert" | grep '^subject=' | sed 's/subject=//'); issuer=$(echo "$cert" | grep '^issuer=' | sed 's/issuer=//'); echo "localhost:$port,$subject,$issuer"; done