diff --git a/lib/os/class.ISPConfigDebianOS.inc.php b/lib/os/class.ISPConfigDebianOS.inc.php
index 996bd9a608de14abc964f6d6c78e8618e1ef5e9a..6eb1dab070753c5ed0bbe27135da4df771c0d0c7 100644
--- a/lib/os/class.ISPConfigDebianOS.inc.php
+++ b/lib/os/class.ISPConfigDebianOS.inc.php
@@ -469,6 +469,35 @@ mailman-unsubscribe:  "|/var/lib/mailman/mail/mailman unsubscribe mailman"';
 			return false;
 		}
 
+		ISPConfigLog::info('Checking hostname.', true);
+
+		$host_name = false;
+		$cmd = 'hostname -f 2>&1';
+		$check = $this->exec($cmd);
+		if($check === false) {
+			throw new ISPConfigOSException('Command ' . $cmd . ' failed.');
+		} else {
+			$host_name = $check;
+		}/* elseif(trim($check) !== $host_name) {
+			ISPConfigLog::warn('Hostname mismatch: ' . $check . ' != ' . $host_name);
+		}*/
+
+		$cmd = 'hostname 2>&1';
+		$check = $this->exec($cmd);
+		if($check === false) {
+			throw new ISPConfigOSException('Command ' . $cmd . ' failed.');
+		}/* elseif(trim($check) !== $short_hostname) {
+			ISPConfigLog::warn('Short hostname mismatch: ' . $check . ' != ' . $short_hostname);
+		}*/
+
+		if($host_name == '') {
+			ISPConfigLog::error('Could not read the host name of your server. Please check it is correctly set.', true);
+			throw new ISPConfigOSException('Invalid host name or host name not found.');
+		} elseif(substr_count($host_name, '.') < 2) {
+			ISPConfigLog::error('The host name ' . $host_name . ' of your server is no fully qualified domain name (xyz.domain.com). Please check it is correctly set.', true);
+			throw new ISPConfigOSException('Host name is no FQDN.');
+		}
+
 		$this->configureApt();
 		$this->updatePackageList();
 
@@ -585,34 +614,6 @@ mailman-unsubscribe:  "|/var/lib/mailman/mail/mailman unsubscribe mailman"';
 			ISPConfigLog::info('Server online again.', true);
 		}*/
 
-		ISPConfigLog::info('Checking hostname.', true);
-
-		$host_name = false;
-		$cmd = 'hostname -f 2>&1';
-		$check = $this->exec($cmd);
-		if($check === false) {
-			throw new ISPConfigOSException('Command ' . $cmd . ' failed.');
-		} else {
-			$host_name = $check;
-		}/* elseif(trim($check) !== $host_name) {
-			ISPConfigLog::warn('Hostname mismatch: ' . $check . ' != ' . $host_name);
-		}*/
-
-		$cmd = 'hostname 2>&1';
-		$check = $this->exec($cmd);
-		if($check === false) {
-			throw new ISPConfigOSException('Command ' . $cmd . ' failed.');
-		}/* elseif(trim($check) !== $short_hostname) {
-			ISPConfigLog::warn('Short hostname mismatch: ' . $check . ' != ' . $short_hostname);
-		}*/
-
-		if($host_name == '') {
-			ISPConfigLog::error('Could not read the host name of your server. Please check it is correctly set.', true);
-			throw new ISPConfigOSException('Invalid host name or host name not found.');
-		} elseif(substr_count($host_name, '.') < 2) {
-			ISPConfigLog::error('The host name ' . $host_name . ' of your server is no fully qualified domain name (xyz.domain.com). Please check it is correctly set.', true);
-			throw new ISPConfigOSException('Host name is no FQDN.');
-		}
 
 		$cmd = 'readlink /bin/sh 2>&1';
 		$check = trim($this->exec($cmd));