Fix issue of 801

Based on clong#801 (comment)
so credit goes to him

Author: security-companion

Vagrant/scripts/fix-failed-to-join-domain_interface-issue.ps1

@@ -0,0 +1,32 @@
+# explanation of script>
+# 1. get list of all IP's on VM
+# 2. find interface with ip in correct subnet. I.e. same range as DNS=192.168.56.102
+# 3. Change the interfaceMetric of this interface to have higher priority than the others
+
+# Step 1
+$ips=Get-NetIPAddress
+
+# Step 2
+# Two variables used in while-loop. 
+$correctInterfaceIndex=''
+[bool]$correctInterface # Cast variable to boolean. Used in while loop
+$i=0
+
+# While loop> run until correct interface is found
+while ($i -le $ips.Length -and !$correctInterfaceIndex ) {
+    #$ips[$i].IPAddress
+    if ($ips[$i].IPAddress -like "*192.168.*"){
+        $correctInterfaceIndex=$ips[$i].InterfaceIndex
+        #$correctInterfaceIndex
+    }
+    $i++
+}
+
+#Step 3
+#Get current InterfaceMetric of NetworkInterface with index $correntInterfaceIndex
+$current_interface_metric=$(Get-NetIPInterface -InterfaceIndex $correctInterfaceIndex).InterfaceMetric
+$current_interface_metric
+
+# Set interfaceMetric with higher priority
+Set-NetIPInterface -InterfaceIndex $correctInterfaceIndex -InterfaceMetric $($current_interface_metric-1)
+$(Get-NetIPInterface -InterfaceIndex $correctInterfaceIndex).InterfaceMetric

Vagrant/scripts/join-domain.ps1

@@ -44,6 +44,7 @@ If (($hostname -eq "wef") -or ($hostname -eq "exchange")) {
   While ($tries -lt 3) {
     Try {
       $tries += 1
+	  . c:\vagrant\scripts\fix-failed-to-join-domain_interface-issue.ps1
       Write-Host "$('[{0:HH:mm}]' -f (Get-Date)) Try # $tries"
       Add-Computer -DomainName "windomain.local" -credential $DomainCred -OUPath "ou=Workstations,dc=windomain,dc=local"
       Break