diff --git a/lib/Froxlor/Install/Install.php b/lib/Froxlor/Install/Install.php
index d9c4fc52..eaf33c48 100644
--- a/lib/Froxlor/Install/Install.php
+++ b/lib/Froxlor/Install/Install.php
@@ -31,6 +31,7 @@ use Froxlor\UI\Panel\UI;
 use Froxlor\UI\Request;
 use Froxlor\Config\ConfigParser;
 use Froxlor\Validate\Validate;
+use Froxlor\System\IPTools;
 
 class Install
 {
@@ -256,13 +257,18 @@ class Install
 	 */
 	private function checkSystem(array $validatedData): void
 	{
-		$serverip = $validatedData['serverip'] ?? '';
+		$serveripv4 = $validatedData['serveripv4'] ?? '';
+		$serveripv6 = $validatedData['serveripv6'] ?? '';
 		$servername = $validatedData['servername'] ?? '';
 		$httpuser = $validatedData['httpuser'] ?? 'www-data';
 		$httpgroup = $validatedData['httpgroup'] ?? 'www-data';
 
-		if (!Validate::validate_ip2($serverip, true, '', false, true)) {
-			throw new Exception(lng('error.invalidip', [$serverip]));
+		if (empty($serveripv4) && empty($serveripv6)) {
+			throw new Exception(lng('install.errors.nov4andnov6ip'));
+		} elseif (!Validate::validate_ip2($serveripv4, true, '', false, true) || IPTools::is_ipv6($serveripv4)) {
+			throw new Exception(lng('error.invalidip', [$serveripv4]));
+		} elseif (!Validate::validate_ip2($serveripv6, true, '', false, true) || IPTools::is_ipv6($serveripv6) == false) {
+			throw new Exception(lng('error.invalidip', [$serveripv6]));
 		} elseif (!Validate::validateDomain($servername) && !Validate::validateLocalHostname($servername)) {
 			throw new Exception(lng('install.errors.servernameneedstobevalid'));
 		} elseif (posix_getpwnam($httpuser) === false) {
diff --git a/lib/Froxlor/Install/Install/Core.php b/lib/Froxlor/Install/Install/Core.php
index 3f4d89e1..222b3718 100644
--- a/lib/Froxlor/Install/Install/Core.php
+++ b/lib/Froxlor/Install/Install/Core.php
@@ -231,6 +231,7 @@ class Core
 		$mysql_access_host_array = array_map('trim', explode(',', $this->validatedData['mysql_access_host']));
 
 		// @todo localhost/127.0.0.1/serverip checks and addition is only required if mysql_access_host is not a separate machine
+		/*
 		if (in_array('127.0.0.1', $mysql_access_host_array) && !in_array('localhost', $mysql_access_host_array)) {
 			$mysql_access_host_array[] = 'localhost';
 		}
@@ -240,6 +241,7 @@ class Core
 		if (!in_array($this->validatedData['serverip'], $mysql_access_host_array)) {
 			$mysql_access_host_array[] = $this->validatedData['serverip'];
 		}
+		*/
 
 		$mysql_access_host_array = array_unique($mysql_access_host_array);
 
@@ -370,8 +372,10 @@ class Core
 			WHERE `settinggroup` = :group AND `varname` = :varname
 		");
 
+		$mainip = !empty($this->validatedData['serveripv6']) ? $this->validatedData['serveripv6'] : $this->validatedData['serveripv4'];
+
 		$this->updateSetting($upd_stmt, 'admin@' . $this->validatedData['servername'], 'panel', 'adminmail');
-		$this->updateSetting($upd_stmt, $this->validatedData['serverip'], 'system', 'ipaddress');
+		$this->updateSetting($upd_stmt, $mainip, 'system', 'ipaddress');
 		if ($this->validatedData['use_ssl']) {
 			$this->updateSetting($upd_stmt, 1, 'system', 'use_ssl');
 			$this->updateSetting($upd_stmt, 1, 'system', 'leenabled');
@@ -496,23 +500,47 @@ class Core
 			`ssl` = :ssl
 		");
 		$nvh = $this->validatedData['webserver'] == 'apache2' ? '1' : '0';
-		$stmt->execute([
-			'nvh' => $nvh,
-			'serverip' => $this->validatedData['serverip'],
-			'serverport' => 80,
-			'ssl' => 0
-		]);
-		$defaultip = $db_user->lastInsertId();
+		if (!empty($this->validatedData['serveripv6'])) {
+			$stmt->execute([
+				'nvh' => $nvh,
+				'serverip' => $this->validatedData['serveripv6'],
+				'serverport' => 80,
+				'ssl' => 0
+			]);
+			$defaultip = $db_user->lastInsertId();
+		}
+		if (!empty($this->validatedData['serveripv4'])) {
+			$stmt->execute([
+				'nvh' => $nvh,
+				'serverip' => $this->validatedData['serveripv4'],
+				'serverport' => 80,
+				'ssl' => 0
+			]);
+			$lastinsert = $db_user->lastInsertId();
+			$defaultip = $defaultip != false ? $defaultip . ',' . $lastinsert : $lastinsert;
+		}
 
 		$defaultsslip = false;
 		if ($this->validatedData['use_ssl']) {
-			$stmt->execute([
-				'nvh' => $this->validatedData['webserver'] == 'apache2' ? '1' : '0',
-				'serverip' => $this->validatedData['serverip'],
-				'serverport' => 443,
-				'ssl' => 1
-			]);
-			$defaultsslip = $db_user->lastInsertId();
+			if (!empty($this->validatedData['serveripv6'])) {
+				$stmt->execute([
+					'nvh' => $this->validatedData['webserver'] == 'apache2' ? '1' : '0',
+					'serverip' => $this->validatedData['serveripv6'],
+					'serverport' => 443,
+					'ssl' => 1
+				]);
+				$defaultsslip = $db_user->lastInsertId();
+			}
+			if (!empty($this->validatedData['serveripv4'])) {
+				$stmt->execute([
+					'nvh' => $this->validatedData['webserver'] == 'apache2' ? '1' : '0',
+					'serverip' => $this->validatedData['serveripv4'],
+					'serverport' => 443,
+					'ssl' => 1
+				]);
+				$lastinsert = $db_user->lastInsertId();
+				$defaultsslip = $defaultsslip != false ? $defaultsslip . ',' . $lastinsert : $lastinsert;
+			}
 		}
 
 		// insert the defaultip
diff --git a/lng/en.lng.php b/lng/en.lng.php
index 24443e84..5e66e913 100644
--- a/lng/en.lng.php
+++ b/lng/en.lng.php
@@ -2493,7 +2493,7 @@ Yours sincerely, your administrator',
 			'ipv6' => 'Primary IPv6 address (if applicable)',
 			'servername' => 'Server name (FQDN, no ip-address)',
 			'phpbackend' => 'PHP backend',
-			'activate_newsfeed' => 'Enable the official newsfeed<br><small>(https://inside.froxlor.org/news/)</small>',
+			'activate_newsfeed' => 'Enable the official newsfeed<br><small>(external source: https://inside.froxlor.org/news/)</small>',
 		],
 		'install' => [
 			'top' => 'Finish setup',
@@ -2509,6 +2509,7 @@ Yours sincerely, your administrator',
 			'unabletocreateuser' => 'Test user could not be created',
 			'unabletodropuser' => 'Test user could not be dropped',
 			'unabletoflushprivs' => 'Given privileged user is unable to flush privileges',
+			'nov4andnov6ip' => 'Either IPv4- or IPv6-address must be given',
 			'servernameneedstobevalid' => 'Given servername does not seem to be a FQDN or hostname',
 			'websrvuserdoesnotexist' => 'Given webserver-user does not seem to exist on the system',
 			'websrvgrpdoesnotexist' => 'Given webserver-group does not seem to exist on the system',