Improve repadmin syncall targeting

certy.ps1

@@ -238,6 +238,12 @@ function Invoke-Replication {
     foreach ($server in $targets) {
         $cmd = if ($Command -match "\{server\}") { $Command.Replace("{server}", $server) } else { $Command }
         $cmd = $cmd.Trim()
+        if ($cmd -match "^(?i)\s*/repadmin\b") {
+            $cmd = $cmd -replace "^(?i)\s*/repadmin\b", "repadmin"
+        }
+        if ($server -and $cmd -match "(?i)\brepadmin\b" -and $cmd -match "(?i)\bsyncall\b" -and $cmd -notmatch "\{server\}") {
+            $cmd = $cmd -replace "(?i)\bsyncall\b", "syncall $server"
+        }
         if ([string]::IsNullOrWhiteSpace($cmd)) { continue }
         & $Log "Replication: $cmd"
         & $env:ComSpec /c $cmd | ForEach-Object { & $Log $_ }
@@ -578,7 +584,7 @@ $y += 70 + $gap
 
 Add-Label "Replication command ({server} optional)" $xLabel $y $labelWidth $rowHeight
 $replicationCmdBox = Add-TextBox $xInput $y $inputWidth $rowHeight $false
-$replicationCmdBox.Text = "repadmin /syncall {server} /A /e /P /d"
+$replicationCmdBox.Text = "repadmin /syncall {server} /AdeP"
 $y += $rowHeight + ($gap * 2)
 
 Add-SectionHeader "ACME / Output"
@@ -948,6 +954,10 @@ $runBtn.Add_Click({
                 $replicationTargets = $selectedReplicationTargets
             } else {
                 $replicationTargets = Split-List $replicationTargetsBox.Text
+                if ($replicationTargets.Count -eq 0 -and $dnsServer) {
+                    $replicationTargets = @($dnsServer)
+                    & $logAction "Replication targets empty; using primary DNS server $dnsServer."
+                }
             }
             Invoke-Replication -Servers $replicationTargets -Command $replicationCmdBox.Text -Log $logAction
         } else {