diff --git a/box.js b/box.js
index 05e6762eb..8ff306863 100755
--- a/box.js
+++ b/box.js
@@ -30,8 +30,6 @@ console.log(' Version:                        ', constants.VERSION);
 console.log(' Admin Origin:                   ', config.adminOrigin());
 console.log(' Appstore API server origin:     ', config.apiServerOrigin());
 console.log(' Appstore Web server origin:     ', config.webServerOrigin());
-console.log(' LDAP Server Port:               ', config.get('ldapPort'));
-console.log(' Docker Proxy Port:              ', config.get('dockerProxyPort'));
 console.log();
 console.log('==========================================');
 console.log();
diff --git a/src/addons.js b/src/addons.js
index cd546cd0f..cf75be92c 100644
--- a/src/addons.js
+++ b/src/addons.js
@@ -38,6 +38,7 @@ var accesscontrol = require('./accesscontrol.js'),
     async = require('async'),
     clients = require('./clients.js'),
     config = require('./config.js'),
+    constants = require('./constants.js'),
     ClientsError = clients.ClientsError,
     crypto = require('crypto'),
     DatabaseError = require('./databaseerror.js'),
@@ -685,7 +686,7 @@ function getEnvironment(app, callback) {
     appdb.getAddonConfigByAppId(app.id, function (error, result) {
         if (error) return callback(error);
 
-        if (app.manifest.addons['docker']) result.push({ name: 'DOCKER_HOST', value: `tcp://172.18.0.1:${config.get('dockerProxyPort')}` });
+        if (app.manifest.addons['docker']) result.push({ name: 'DOCKER_HOST', value: `tcp://172.18.0.1:${constants.DOCKER_PROXY_PORT}` });
 
         return callback(null, result.map(function (e) { return e.name + '=' + e.value; }));
     });
@@ -876,8 +877,8 @@ function setupLdap(app, options, callback) {
 
     var env = [
         { name: `${envPrefix}LDAP_SERVER`, value: '172.18.0.1' },
-        { name: `${envPrefix}LDAP_PORT`, value: '' + config.get('ldapPort') },
-        { name: `${envPrefix}LDAP_URL`, value: 'ldap://172.18.0.1:' + config.get('ldapPort') },
+        { name: `${envPrefix}LDAP_PORT`, value: '' + constants.LDAP_PORT },
+        { name: `${envPrefix}LDAP_URL`, value: 'ldap://172.18.0.1:' + constants.LDAP_PORT },
         { name: `${envPrefix}LDAP_USERS_BASE_DN`, value: 'ou=users,dc=cloudron' },
         { name: `${envPrefix}LDAP_GROUPS_BASE_DN`, value: 'ou=groups,dc=cloudron' },
         { name: `${envPrefix}LDAP_BIND_DN`, value: 'cn='+ app.id + ',ou=apps,dc=cloudron' },
diff --git a/src/apps.js b/src/apps.js
index 361ed45c7..578fbf887 100644
--- a/src/apps.js
+++ b/src/apps.js
@@ -152,7 +152,7 @@ function validatePortBindings(portBindings, manifest) {
         config.get('port'), /* app server (lo) */
         constants.SYSADMIN_PORT, /* sysadmin app server (lo) */
         constants.INTERNAL_SMTP_PORT, /* internal smtp port (lo) */
-        config.get('ldapPort'), /* ldap server (lo) */
+        constants.LDAP_PORT,
         3306, /* mysql (lo) */
         4190, /* managesieve */
         8000, /* ESXi monitoring */
diff --git a/src/config.js b/src/config.js
index cd3731efd..bf9ef4583 100644
--- a/src/config.js
+++ b/src/config.js
@@ -85,8 +85,6 @@ function initConfig() {
     data.apiServerOrigin = null;
     data.webServerOrigin = null;
     data.provider = 'generic';
-    data.ldapPort = 3002;
-    data.dockerProxyPort = 3003;
 
     // keep in sync with start.sh
     data.database = {
diff --git a/src/constants.js b/src/constants.js
index 6364bfbdf..c5c53e69a 100644
--- a/src/constants.js
+++ b/src/constants.js
@@ -23,6 +23,8 @@ exports = module.exports = {
 
     INTERNAL_SMTP_PORT: 2525, // this value comes from the mail container
     SYSADMIN_PORT: 3001,
+    LDAP_PORT: 3002,
+    DOCKER_PROXY_PORT: 3003,
 
     NGINX_DEFAULT_CONFIG_FILE_NAME: 'default.conf',
 
diff --git a/src/dockerproxy.js b/src/dockerproxy.js
index 1019d2235..d70040a31 100644
--- a/src/dockerproxy.js
+++ b/src/dockerproxy.js
@@ -9,6 +9,7 @@ var apps = require('./apps.js'),
     AppsError = apps.AppsError,
     assert = require('assert'),
     config = require('./config.js'),
+    constants = require('./constants.js'),
     express = require('express'),
     debug = require('debug')('box:dockerproxy'),
     http = require('http'),
@@ -135,9 +136,9 @@ function start(callback) {
         .use(middleware.lastMile());
 
     gHttpServer = http.createServer(proxyServer);
-    gHttpServer.listen(config.get('dockerProxyPort'), '0.0.0.0', callback);
+    gHttpServer.listen(constants.DOCKER_PROXY_PORT, '0.0.0.0', callback);
 
-    debug(`startDockerProxy: started proxy on port ${config.get('dockerProxyPort')}`);
+    debug(`startDockerProxy: started proxy on port ${constants.DOCKER_PROXY_PORT}`);
 
     gHttpServer.on('upgrade', function (req, client, head) {
         // Create a new tcp connection to the TCP server
@@ -150,7 +151,7 @@ function start(callback) {
             if (req.headers['content-type'] === 'application/json') {
                 // TODO we have to parse the immediate upgrade request body, but I don't know how
                 let plainBody = '{"Detach":false,"Tty":false}\r\n';
-                upgradeMessage += `Content-Type: application/json\r\n`;
+                upgradeMessage += 'Content-Type: application/json\r\n';
                 upgradeMessage += `Content-Length: ${Buffer.byteLength(plainBody)}\r\n`;
                 upgradeMessage += '\r\n';
                 upgradeMessage += plainBody;
diff --git a/src/ldap.js b/src/ldap.js
index 027f52cbd..0d4107005 100644
--- a/src/ldap.js
+++ b/src/ldap.js
@@ -9,7 +9,7 @@ var assert = require('assert'),
     appdb = require('./appdb.js'),
     apps = require('./apps.js'),
     async = require('async'),
-    config = require('./config.js'),
+    constants = require('./constants.js'),
     DatabaseError = require('./databaseerror.js'),
     debug = require('debug')('box:ldap'),
     eventlog = require('./eventlog.js'),
@@ -640,7 +640,7 @@ function start(callback) {
         res.end();
     });
 
-    gServer.listen(config.get('ldapPort'), '0.0.0.0', callback);
+    gServer.listen(constants.LDAP_PORT, '0.0.0.0', callback);
 }
 
 function stop(callback) {
diff --git a/src/test/dockerproxy-test.js b/src/test/dockerproxy-test.js
index f36f95435..60437aa56 100644
--- a/src/test/dockerproxy-test.js
+++ b/src/test/dockerproxy-test.js
@@ -6,12 +6,12 @@
 
 'use strict';
 
-var dockerProxy = require('../dockerproxy.js'),
-    config = require('../config.js'),
+var constants = require('../constants.js'),
+    dockerProxy = require('../dockerproxy.js'),
     exec = require('child_process').exec,
     expect = require('expect.js');
 
-const DOCKER = `docker -H tcp://localhost:${config.get('dockerProxyPort')} `;
+const DOCKER = `docker -H tcp://localhost:${constants.DOCKER_PROXY_PORT} `;
 
 describe('Dockerproxy', function () {
     var containerId;
diff --git a/src/test/ldap-test.js b/src/test/ldap-test.js
index 7e11f71b8..e37d2a906 100644
--- a/src/test/ldap-test.js
+++ b/src/test/ldap-test.js
@@ -10,9 +10,10 @@ var appdb = require('../appdb.js'),
     apps = require('../apps.js'),
     assert = require('assert'),
     async = require('async'),
+    config = require('../config.js'),
+    constants = require('../constants.js'),
     database = require('../database.js'),
     domains = require('../domains.js'),
-    config = require('../config.js'),
     EventEmitter = require('events').EventEmitter,
     expect = require('expect.js'),
     groups = require('../groups.js'),
@@ -219,7 +220,7 @@ describe('Ldap', function () {
 
     describe('bind', function () {
         it('fails for nonexisting user', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=doesnotexist,ou=users,dc=cloudron', 'password', function (error) {
                 expect(error).to.be.a(ldap.NoSuchObjectError);
@@ -229,7 +230,7 @@ describe('Ldap', function () {
         });
 
         it('fails with wrong password', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=' + USER_0.id + ',ou=users,dc=cloudron', 'wrongpassword', function (error) {
                 expect(error).to.be.a(ldap.InvalidCredentialsError);
@@ -239,7 +240,7 @@ describe('Ldap', function () {
         });
 
         it('succeeds without accessRestriction', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=' + USER_0.id + ',ou=users,dc=cloudron', USER_0.password, function (error) {
                 expect(error).to.be(null);
@@ -249,7 +250,7 @@ describe('Ldap', function () {
         });
 
         it('succeeds with username and without accessRestriction', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=' + USER_0.username + ',ou=users,dc=cloudron', USER_0.password, function (error) {
                 expect(error).to.be(null);
@@ -259,7 +260,7 @@ describe('Ldap', function () {
         });
 
         it('succeeds with email and without accessRestriction', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=' + USER_0.email + ',ou=users,dc=cloudron', USER_0.password, function (error) {
                 expect(error).to.be(null);
@@ -273,7 +274,7 @@ describe('Ldap', function () {
             maildb.update(DOMAIN_0.domain, { enabled: true }, function (error) {
                 expect(error).not.to.be.ok();
 
-                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
                 client.bind('cn=' + USER_0.email.toLowerCase() + ',ou=users,dc=cloudron', USER_0.password, function (error) {
                     expect(error).to.be(null);
@@ -286,7 +287,7 @@ describe('Ldap', function () {
         });
 
         it('fails with username for mail attribute and without accessRestriction', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('mail=' + USER_0.username + ',ou=users,dc=cloudron', USER_0.password, function (error) {
                 expect(error).to.be.a(ldap.NoSuchObjectError);
@@ -296,7 +297,7 @@ describe('Ldap', function () {
         });
 
         it('fails with accessRestriction denied', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             appdb.update(APP_0.id, { accessRestriction: { users: [ USER_0.id ], groups: [] }}, function (error) {
                 expect(error).to.eql(null);
@@ -310,7 +311,7 @@ describe('Ldap', function () {
         });
 
         it('succeeds with accessRestriction allowed', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             appdb.update(APP_0.id, { accessRestriction: { users: [ USER_1.id, USER_0.id ], groups: [] }}, function (error) {
                 expect(error).to.eql(null);
@@ -326,7 +327,7 @@ describe('Ldap', function () {
 
     describe('search users', function () {
         it ('fails for non existing tree', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             var opts = {
                 filter: '(&(l=Seattle)(email=*@' + DOMAIN_0.domain + '))'
@@ -348,7 +349,7 @@ describe('Ldap', function () {
         });
 
         it ('succeeds with basic filter', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             var opts = {
                 filter: 'objectcategory=person'
@@ -377,7 +378,7 @@ describe('Ldap', function () {
         });
 
         it ('succeeds with pagination', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             var opts = {
                 filter: 'objectcategory=person',
@@ -411,7 +412,7 @@ describe('Ldap', function () {
             maildb.update(DOMAIN_0.domain, { enabled: true }, function (error) {
                 expect(error).not.to.be.ok();
 
-                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
                 var opts = {
                     filter: 'objectcategory=person'
@@ -446,7 +447,7 @@ describe('Ldap', function () {
         });
 
         it ('succeeds with username wildcard filter', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             var opts = {
                 filter: '&(objectcategory=person)(username=username*)'
@@ -473,7 +474,7 @@ describe('Ldap', function () {
         });
 
         it ('succeeds with username filter', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             var opts = {
                 filter: '&(objectcategory=person)(username=' + USER_0.username + ')'
@@ -502,7 +503,7 @@ describe('Ldap', function () {
             appdb.update(APP_0.id, { accessRestriction: { users: [], groups: [] } }, function (error) {
                 expect(error).to.be(null);
 
-                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
                 var opts = {
                     filter: 'objectcategory=person'
@@ -534,7 +535,7 @@ describe('Ldap', function () {
             appdb.update(APP_0.id, { accessRestriction: { users: [], groups: [ GROUP_ID ] } }, function (error) {
                 expect(error).to.be(null);
 
-                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
                 var opts = {
                     filter: 'objectcategory=person'
@@ -567,7 +568,7 @@ describe('Ldap', function () {
 
     describe('search groups', function () {
         it ('succeeds with basic filter', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             var opts = {
                 filter: 'objectclass=group'
@@ -603,7 +604,7 @@ describe('Ldap', function () {
         });
 
         it ('succeeds with cn wildcard filter', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             var opts = {
                 filter: '&(objectclass=group)(cn=*)'
@@ -635,7 +636,7 @@ describe('Ldap', function () {
         });
 
         it('succeeds with memberuid filter', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             var opts = {
                 filter: '&(objectclass=group)(memberuid=' + USER_1.id + ')'
@@ -664,7 +665,7 @@ describe('Ldap', function () {
             appdb.update(APP_0.id, { accessRestriction: { users: [], groups: [ GROUP_ID ] } }, function (error) {
                 expect(error).to.be(null);
 
-                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
                 var opts = {
                     filter: '&(objectclass=group)(cn=*)'
@@ -698,7 +699,7 @@ describe('Ldap', function () {
         });
 
         it ('succeeds with pagination', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             var opts = {
                 filter: 'objectclass=group',
@@ -737,7 +738,7 @@ describe('Ldap', function () {
 
     // ldapsearch -LLL -E pr=10/noprompt -x -h localhost -p 3002 -b cn=userName0@example.com,ou=mailboxes,dc=cloudron objectclass=mailbox
     function ldapSearch(dn, filter, callback) {
-        var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+        var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
         var opts = {
             filter: filter,
@@ -866,7 +867,7 @@ describe('Ldap', function () {
 
     describe('user mailbox bind', function () {
         it('email disabled - cannot find domain email', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=' + USER_0.username + '@example.com,domain=example.com,ou=mailboxes,dc=cloudron', USER_0.password + 'nope', function (error) {
                 expect(error).to.be.a(ldap.NoSuchObjectError);
@@ -880,7 +881,7 @@ describe('Ldap', function () {
             maildb.update(DOMAIN_0.domain, { enabled: true }, function (error) {
                 expect(error).not.to.be.ok();
 
-                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
                 client.bind('cn=' + USER_0.username + '@example.com,domain=example.com,ou=mailboxes,dc=cloudron', USER_0.password + 'nope', function (error) {
                     expect(error).to.be.a(ldap.InvalidCredentialsError);
@@ -897,7 +898,7 @@ describe('Ldap', function () {
             maildb.update(DOMAIN_0.domain, { enabled: true }, function (error) {
                 expect(error).not.to.be.ok();
 
-                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
                 client.bind('cn=' + USER_0.username + '@example.com,domain=example.com,ou=mailboxes,dc=cloudron', USER_0.password, function (error) {
                     expect(error).not.to.be.ok();
@@ -914,7 +915,7 @@ describe('Ldap', function () {
             maildb.update(DOMAIN_0.domain, { enabled: true }, function (error) {
                 expect(error).not.to.be.ok();
 
-                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
                 client.bind('cn=' + USER_0_ALIAS + '@example.com,domain=example.com,ou=mailboxes,dc=cloudron', USER_0.password, function (error) {
                     expect(error).to.be.a(ldap.NoSuchObjectError);
@@ -929,7 +930,7 @@ describe('Ldap', function () {
 
     describe('user sendmail bind', function () {
         it('email disabled - cannot find domain email', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=' + USER_0.username + '@example.com,ou=sendmail,dc=cloudron', USER_0.password + 'nope', function (error) {
                 expect(error).to.be.a(ldap.InvalidCredentialsError);
@@ -939,7 +940,7 @@ describe('Ldap', function () {
         });
 
         it('email disabled - cannot find reset email', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=' + USER_0.email + ',ou=sendmail,dc=cloudron', USER_0.password + 'nope', function (error) {
                 expect(error).to.be.a(ldap.NoSuchObjectError);
@@ -953,7 +954,7 @@ describe('Ldap', function () {
             maildb.update(DOMAIN_0.domain, { enabled: true }, function (error) {
                 expect(error).not.to.be.ok();
 
-                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
                 client.bind('cn=' + USER_0.username.toLocaleLowerCase() + '@' + DOMAIN_0.domain + ',ou=sendmail,dc=cloudron', USER_0.password, function (error) {
                     expect(error).not.to.be.ok();
@@ -970,7 +971,7 @@ describe('Ldap', function () {
             maildb.update(DOMAIN_0.domain, { enabled: true }, function (error) {
                 expect(error).not.to.be.ok();
 
-                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
                 client.bind('cn=' + USER_0.username + '@example.com,ou=sendmail,dc=cloudron', USER_0.password + 'nope', function (error) {
                     expect(error).to.be.a(ldap.InvalidCredentialsError);
@@ -990,7 +991,7 @@ describe('Ldap', function () {
         });
 
         it('does not allow with invalid app', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=hacker.app@example.com,ou=sendmail,dc=cloudron', 'nope', function (error) {
                 expect(error).to.be.a(ldap.NoSuchObjectError);
@@ -1000,7 +1001,7 @@ describe('Ldap', function () {
         });
 
         it('does not allow with invalid password', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=' + APP_0.location + '.app@example.com,ou=sendmail,dc=cloudron', 'nope', function (error) {
                 expect(error).to.be.a(ldap.NoSuchObjectError);
@@ -1010,7 +1011,7 @@ describe('Ldap', function () {
         });
 
         it('allows with valid password', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=' + APP_0.location + '.app@example.com,ou=sendmail,dc=cloudron', 'sendmailpassword', function (error) {
                 client.unbind();
@@ -1025,7 +1026,7 @@ describe('Ldap', function () {
         });
 
         it('email disabled - cannot find domain email', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=' + USER_0.username + '@example.com,ou=recvmail,dc=cloudron', USER_0.password + 'nope', function (error) {
                 expect(error).to.be.a(ldap.NoSuchObjectError);
@@ -1035,7 +1036,7 @@ describe('Ldap', function () {
         });
 
         it('email disabled - cannot find reset email', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=' + USER_0.email + ',ou=recvmail,dc=cloudron', USER_0.password + 'nope', function (error) {
                 expect(error).to.be.a(ldap.NoSuchObjectError);
@@ -1049,7 +1050,7 @@ describe('Ldap', function () {
             maildb.update(DOMAIN_0.domain, { enabled: true }, function (error) {
                 expect(error).not.to.be.ok();
 
-                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
                 client.bind('cn=' + USER_0.username + '@example.com,ou=recvmail,dc=cloudron', USER_0.password, function (error) {
                     expect(error).not.to.be.ok();
@@ -1066,7 +1067,7 @@ describe('Ldap', function () {
             maildb.update(DOMAIN_0.domain, { enabled: true }, function (error) {
                 expect(error).not.to.be.ok();
 
-                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+                var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
                 client.bind('cn=' + USER_0.username + '@example.com,ou=recvmail,dc=cloudron', USER_0.password + 'nope', function (error) {
                     expect(error).to.be.a(ldap.InvalidCredentialsError);
@@ -1085,7 +1086,7 @@ describe('Ldap', function () {
         });
 
         it('does not allow with invalid app', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=hacker.app@example.com,ou=recvmail,dc=cloudron', 'nope', function (error) {
                 expect(error).to.be.a(ldap.NoSuchObjectError);
@@ -1095,7 +1096,7 @@ describe('Ldap', function () {
         });
 
         it('does not allow with invalid password', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=' + APP_0.location + '.app@example.com,ou=recvmail,dc=cloudron', 'nope', function (error) {
                 expect(error).to.be.a(ldap.NoSuchObjectError);
@@ -1105,7 +1106,7 @@ describe('Ldap', function () {
         });
 
         it('allows with valid password', function (done) {
-            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + config.get('ldapPort') });
+            var client = ldap.createClient({ url: 'ldap://127.0.0.1:' + constants.LDAP_PORT });
 
             client.bind('cn=' + APP_0.location + '.app@example.com,ou=recvmail,dc=cloudron', 'recvmailpassword', function (error) {
                 client.unbind();