diff --git a/src/Controller/DomainController.php b/src/Controller/DomainController.php
index b12dfea..8e66c51 100644
--- a/src/Controller/DomainController.php
+++ b/src/Controller/DomainController.php
@@ -15,7 +15,7 @@ class DomainController
 	private String $namedConfLocalFile;
 	private string $zoneCachePath;
 	
-	public function __construct(private DatabaseConnection $databaseConnection)
+	public function __construct(private DatabaseConnection $databaseConnection, private PanelController $panelController)
 	{
 		$this->localZoneFile = '/etc/bind/local.zones';
 		$this->localZonesDir = '/etc/bind/zones/';
@@ -30,8 +30,9 @@ class DomainController
 	public function findAll(): bool|array
 	{
 		$statement = "
-            SELECT id, name, a, aaaa
-            FROM " . DatabaseConnection::TABLE_DOMAINS;
+            SELECT id, name, panel_id, a, aaaa
+            FROM " . DatabaseConnection::TABLE_DOMAINS . "
+            ORDER BY name";
 		
 		try {
 			$statement = $this->databaseConnection->getConnection()->query($statement);
@@ -50,7 +51,7 @@ class DomainController
 	public function findByName(String $name): bool|array
 	{
 		$sql = "
-			SELECT id, name, a, aaaa
+			SELECT id, name, panel_id, a, aaaa
 			FROM " . DatabaseConnection::TABLE_DOMAINS . "
             WHERE name = :name";
 		
@@ -73,7 +74,7 @@ class DomainController
 	public function findByID(int $id): bool|array
 	{
 		$sql = "
-			SELECT id, name, a, aaaa
+			SELECT id, name, panel_id, a, aaaa
 			FROM . " . DatabaseConnection::TABLE_DOMAINS . "
             WHERE id = :id";
 		
@@ -86,34 +87,41 @@ class DomainController
 			exit($e->getMessage());
 		}
 	}
-
+	
 	
 	/**
 	 * @param String $name
+	 * @param int    $panelID
 	 * @param String $a
 	 * @param String $aaaa
 	 *
 	 * @return int
 	 */
-	public function insert(String $name, String $a, String $aaaa): int
+	public function insert(String $name, int $panelID, String $a, String $aaaa): int
 	{
 		// TODO create zone file and include
 		$sql = "
-            INSERT INTO " . DatabaseConnection::TABLE_DOMAINS . " (name, a, aaaa)
-            VALUES (:name, :a, :aaaa)";
+            INSERT INTO " . DatabaseConnection::TABLE_DOMAINS . " (name, panel_id, a, aaaa)
+            VALUES (:name, :panel_id, :a, :aaaa)";
 		
 		try {
 			$statement = $this->databaseConnection->getConnection()->prepare($sql);
 			$statement->bindParam(param: ':name', var: $name);
+			$statement->bindParam(param: ':panel_d', var: $panelID);
 			$statement->bindParam(param: ':a', var: $a);
 			$statement->bindParam(param: ':aaaa', var: $aaaa);
 			$statement->execute();
 			
+			
+			if ($panel = $this->panelController->findByID($panelID)) {
+				$a = $panel['a'];
+				$aaaa = $panel['aaaa'];
+			}
 			$this->createZoneFile(name: $name, a: $a, aaaa: $aaaa);
 			$zoneFilename = $this->localZonesDir . $name;
 			echo $zoneFilename . PHP_EOL;
 			
-			if ($localZones = fopen($this->localZoneFile, 'a')) {
+			if ($localZones = fopen($this->localZoneFile, mode: 'a')) {
 				fputs($localZones, data: "include \"$zoneFilename\";" . PHP_EOL);
 				fclose($localZones);
 			} else {
@@ -125,19 +133,19 @@ class DomainController
 		} catch (PDOException $e) {
 			exit($e->getMessage());
 		}
-		
 	}
 	
 	
 	/**
 	 * @param Int    $id
 	 * @param String $name
+	 * @param int    $panelID
 	 * @param String $a
 	 * @param String $aaaa
 	 *
 	 * @return false|int
 	 */
-	public function update(Int $id, String $name, String $a, String $aaaa): bool|int
+	public function update(Int $id, String $name, int $panelID, String $a, String $aaaa): bool|int
 	{
 		$current = $this->findByID($id);
 		
@@ -154,6 +162,10 @@ class DomainController
 		if (empty($name)) {
 			$name = $current['name'];
 		}
+		if (empty($panelID)) {
+			$panelID = $current['panel_id'];
+		}
+		$panelID = intval(value: $panelID);
 		if (empty($a)) {
 			$a = $current['a'];
 		}
@@ -164,6 +176,7 @@ class DomainController
 		$sql = "
 			UPDATE " . DatabaseConnection::TABLE_DOMAINS . " SET
 				name = :name,
+				panel_id = :panel_id,
 				a = :a,
                	aaaa = :aaaa
             WHERE id = :id";
@@ -172,11 +185,16 @@ class DomainController
 			$statement = $this->databaseConnection->getConnection()->prepare($sql);
 			$statement->bindParam(param: 'id', var: $id);
 			$statement->bindParam(param: 'name', var: $name);
+			$statement->bindParam(param: 'panel_id', var: $panelID);
 			$statement->bindParam(param: 'a', var: $a);
 			$statement->bindParam(param: 'aaaa', var: $aaaa);
 			$statement->execute();
 			
 			// recreate zonefile
+			if ($panel = $this->panelController->findByID($panelID)) {
+				$a = $panel['a'];
+				$aaaa = $panel['aaaa'];
+			}
 			$this->createZoneFile(name: $name, a: $a, aaaa: $aaaa);
 			exec(command: '/usr/sbin/rndc reload');
 
@@ -210,6 +228,72 @@ class DomainController
 		}
 	}
 	
+	/**
+	 * @param String $field
+	 *
+	 * @return int
+	 */
+	public function getLongestEntry(String $field): int
+	{
+		$statement = "
+            SELECT MAX(LENGTH(" . $field . ")) as length FROM " . DatabaseConnection::TABLE_DOMAINS;
+		
+		try {
+			$statement = $this->databaseConnection->getConnection()->prepare($statement);
+			$statement->execute();
+			$result =  $statement->fetch();
+			return $result['length'];
+		} catch (PDOException $e) {
+			exit($e->getMessage());
+		}
+	}
+	
+	/**
+	 * @return void
+	 */
+	function checkPermissions(): void
+	{
+		echo 'Checking permission:' . PHP_EOL . PHP_EOL;
+		$uid = posix_geteuid();
+		print("UID:\t$uid" . PHP_EOL);
+		
+		$pwuid = posix_getpwuid($uid);
+		$name = $pwuid['name'];
+		print("Name:\t$name" . PHP_EOL);
+		$bindGroup = posix_getgrnam(name: 'bind');
+		$members = $bindGroup['members'];
+		if (in_array(needle: $name, haystack: $members)) {
+				echo "\t✅ is in group 'bind" . PHP_EOL;
+		}
+
+		echo 'Checking file: ' .$this->localZoneFile . PHP_EOL;
+		$localZoneFilePermissions = fileperms(filename: $this->localZoneFile);
+		if ($localZoneFilePermissions & 0x0010) {
+			echo "\t✅ Group has write access." . PHP_EOL;
+		} else {
+			echo "\t❌Group needs write permission!" . PHP_EOL;
+		}
+		
+		echo "Checking $this->namedConfLocalFile" . PHP_EOL;
+		if ($namedConfLocal = file_get_contents($this->namedConfLocalFile)) {
+			if (!str_contains($namedConfLocal, $this->localZoneFile)) {
+				echo "\t❌ $this->localZoneFile needs to be included in $this->namedConfLocalFile." . PHP_EOL;
+			} else {
+				echo "\t✅ $this->localZoneFile is included in $this->namedConfLocalFile" . PHP_EOL;
+			}
+		} else {
+			echo "\t❌ No access to '$this->namedConfLocalFile'. Please check permissions" . PHP_EOL;
+		}
+		
+		echo 'Checking directory: ' . $this->localZonesDir . PHP_EOL;
+		$localZoneDirPermissions = fileperms(filename: $this->localZonesDir);
+		if ($localZoneDirPermissions & 0x0010) {
+			echo "\t✅ Group has write access." . PHP_EOL;
+		} else {
+			echo "\t❌Group needs write permission!" . PHP_EOL;
+		}
+	}
+	
 	
 	/**
 	 * @return array|bool
@@ -275,5 +359,7 @@ class DomainController
 			fputs($zonefile, data: "\t};" . PHP_EOL);
 			fputs($zonefile, data: "};" . PHP_EOL);
 		}
+		
+		// TODO check if ist exist in the include, else create
 	}
 }
\ No newline at end of file