Prompt for credentials for remote replication

certy.ps1

@@ -238,6 +238,7 @@ function Invoke-Replication {
         [string[]]$Servers,
         [string]$Command,
         [bool]$UseRemote,
+        [pscredential]$Credential,
         [scriptblock]$Log
     )
 
@@ -261,7 +262,11 @@ function Invoke-Replication {
             if ($UseRemote) {
                 if (-not $sessions.ContainsKey($server)) {
                     try {
+                        if ($Credential) {
+                            $sessions[$server] = New-PSSession -ComputerName $server -Credential $Credential -ErrorAction Stop
+                        } else {
                             $sessions[$server] = New-PSSession -ComputerName $server -ErrorAction Stop
+                        }
                         & $Log "Replication session opened: $server"
                     } catch {
                         & $Log ("Replication session error on {0}: {1}" -f $server, $_.Exception.Message)
@@ -1132,7 +1137,15 @@ $runBtn.Add_Click({
                     & $logAction "Replication targets empty; using primary DNS server $dnsServer."
                 }
             }
-            Invoke-Replication -Servers $replicationTargets -Command $replicationCmdBox.Text -UseRemote $replicationRemoteBox.Checked -Log $logAction
+            $replicationCredential = $null
+            if ($replicationRemoteBox.Checked) {
+                $replicationCredential = Get-Credential -Message "Enter credentials for replication targets."
+                if (-not $replicationCredential) {
+                    & $logAction "Replication canceled: credentials not provided."
+                    return
+                }
+            }
+            Invoke-Replication -Servers $replicationTargets -Command $replicationCmdBox.Text -UseRemote $replicationRemoteBox.Checked -Credential $replicationCredential -Log $logAction
             if ($replicationDelaySeconds -gt 0) {
                 & $logAction "Waiting $replicationDelaySeconds seconds for replication."
                 Start-Sleep -Seconds $replicationDelaySeconds