diff --git a/lib/services/frontdoorManagement/LICENSE.txt b/lib/services/frontdoorManagement/LICENSE.txt
index a70e8cf660..5431ba98b9 100644
--- a/lib/services/frontdoorManagement/LICENSE.txt
+++ b/lib/services/frontdoorManagement/LICENSE.txt
@@ -1,21 +1,21 @@
-The MIT License (MIT)
-
-Copyright (c) 2018 Microsoft
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+The MIT License (MIT)
+
+Copyright (c) 2018 Microsoft
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/lib/services/frontdoorManagement/README.md b/lib/services/frontdoorManagement/README.md
index e91d1b359c..60c3cbb0ca 100644
--- a/lib/services/frontdoorManagement/README.md
+++ b/lib/services/frontdoorManagement/README.md
@@ -1,40 +1,40 @@
----
-uid: azure-arm-frontdoor
-summary: *content
-
----
-# Microsoft Azure SDK for Node.js - FrontdoorManagementClient
-This project provides a Node.js package for accessing Azure. Right now it supports:
-- **Node.js version 6.x.x or higher**
-
-## Features
-
-
-## How to Install
-
-```bash
-npm install azure-arm-frontdoor
-```
-
-## How to use
-
-### Authentication, client creation and list frontDoors as an example.
-
-```javascript
-const msRestAzure = require("ms-rest-azure");
-const FrontdoorManagementClient = require("azure-arm-frontdoor");
-msRestAzure.interactiveLogin().then((creds) => {
-    const subscriptionId = "<Subscription_Id>";
-    const client = new FrontdoorManagementClient(creds, subscriptionId);
-    return client.frontDoors.list().then((result) => {
-      console.log("The result is:");
-      console.log(result);
-    });
-}).catch((err) => {
-  console.log('An error occurred:');
-  console.dir(err, {depth: null, colors: true});
-});
-
-## Related projects
-
-- [Microsoft Azure SDK for Node.js](https://github.com/Azure/azure-sdk-for-node)
+---
+uid: azure-arm-frontdoor
+summary: *content
+
+---
+# Microsoft Azure SDK for Node.js - FrontdoorManagementClient
+This project provides a Node.js package for accessing Azure. Right now it supports:
+- **Node.js version 6.x.x or higher**
+
+## Features
+
+
+## How to Install
+
+```bash
+npm install azure-arm-frontdoor
+```
+
+## How to use
+
+### Authentication, client creation and list frontDoors as an example.
+
+```javascript
+const msRestAzure = require("ms-rest-azure");
+const FrontdoorManagementClient = require("azure-arm-frontdoor");
+msRestAzure.interactiveLogin().then((creds) => {
+    const subscriptionId = "<Subscription_Id>";
+    const client = new FrontdoorManagementClient(creds, subscriptionId);
+    return client.frontDoors.list().then((result) => {
+      console.log("The result is:");
+      console.log(result);
+    });
+}).catch((err) => {
+  console.log('An error occurred:');
+  console.dir(err, {depth: null, colors: true});
+});
+
+## Related projects
+
+- [Microsoft Azure SDK for Node.js](https://github.com/Azure/azure-sdk-for-node)
diff --git a/lib/services/frontdoorManagement/lib/operations/backendPools.js b/lib/services/frontdoorManagement/lib/operations/backendPools.js
index 34d80677b7..4db963cac1 100644
--- a/lib/services/frontdoorManagement/lib/operations/backendPools.js
+++ b/lib/services/frontdoorManagement/lib/operations/backendPools.js
@@ -78,17 +78,17 @@ function _listByFrontDoor(resourceGroupName, frontDoorName, options, callback) {
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (this.client.acceptLanguage !== null && this.client.acceptLanguage !== undefined && typeof this.client.acceptLanguage.valueOf() !== 'string') {
@@ -256,17 +256,17 @@ function _get(resourceGroupName, frontDoorName, backendPoolName, options, callba
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (backendPoolName === null || backendPoolName === undefined || typeof backendPoolName.valueOf() !== 'string') {
@@ -648,17 +648,17 @@ function _beginCreateOrUpdate(resourceGroupName, frontDoorName, backendPoolName,
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (backendPoolName === null || backendPoolName === undefined || typeof backendPoolName.valueOf() !== 'string') {
@@ -893,17 +893,17 @@ function _beginDeleteMethod(resourceGroupName, frontDoorName, backendPoolName, o
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (backendPoolName === null || backendPoolName === undefined || typeof backendPoolName.valueOf() !== 'string') {
diff --git a/lib/services/frontdoorManagement/lib/operations/endpoints.js b/lib/services/frontdoorManagement/lib/operations/endpoints.js
index 90ea2a87d6..93b32a7b12 100644
--- a/lib/services/frontdoorManagement/lib/operations/endpoints.js
+++ b/lib/services/frontdoorManagement/lib/operations/endpoints.js
@@ -158,17 +158,17 @@ function _beginPurgeContent(resourceGroupName, frontDoorName, contentFilePaths,
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (contentFilePaths === null || contentFilePaths === undefined) {
diff --git a/lib/services/frontdoorManagement/lib/operations/frontDoors.js b/lib/services/frontdoorManagement/lib/operations/frontDoors.js
index 415c410655..a730df07fd 100644
--- a/lib/services/frontdoorManagement/lib/operations/frontDoors.js
+++ b/lib/services/frontdoorManagement/lib/operations/frontDoors.js
@@ -364,17 +364,17 @@ function _get(resourceGroupName, frontDoorName, options, callback) {
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (this.client.acceptLanguage !== null && this.client.acceptLanguage !== undefined && typeof this.client.acceptLanguage.valueOf() !== 'string') {
@@ -724,17 +724,17 @@ function _validateCustomDomain(resourceGroupName, frontDoorName, customDomainPro
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (customDomainProperties === null || customDomainProperties === undefined) {
@@ -949,17 +949,17 @@ function _beginCreateOrUpdate(resourceGroupName, frontDoorName, frontDoorParamet
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (frontDoorParameters === null || frontDoorParameters === undefined) {
@@ -1173,17 +1173,17 @@ function _beginDeleteMethod(resourceGroupName, frontDoorName, options, callback)
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (this.client.acceptLanguage !== null && this.client.acceptLanguage !== undefined && typeof this.client.acceptLanguage.valueOf() !== 'string') {
diff --git a/lib/services/frontdoorManagement/lib/operations/frontendEndpoints.js b/lib/services/frontdoorManagement/lib/operations/frontendEndpoints.js
index 20779f395c..2db92c4aa0 100644
--- a/lib/services/frontdoorManagement/lib/operations/frontendEndpoints.js
+++ b/lib/services/frontdoorManagement/lib/operations/frontendEndpoints.js
@@ -79,17 +79,17 @@ function _listByFrontDoor(resourceGroupName, frontDoorName, options, callback) {
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (this.client.acceptLanguage !== null && this.client.acceptLanguage !== undefined && typeof this.client.acceptLanguage.valueOf() !== 'string') {
@@ -257,17 +257,17 @@ function _get(resourceGroupName, frontDoorName, frontendEndpointName, options, c
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (frontendEndpointName === null || frontendEndpointName === undefined || typeof frontendEndpointName.valueOf() !== 'string') {
@@ -827,17 +827,17 @@ function _beginCreateOrUpdate(resourceGroupName, frontDoorName, frontendEndpoint
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (frontendEndpointName === null || frontendEndpointName === undefined || typeof frontendEndpointName.valueOf() !== 'string') {
@@ -1072,17 +1072,17 @@ function _beginDeleteMethod(resourceGroupName, frontDoorName, frontendEndpointNa
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (frontendEndpointName === null || frontendEndpointName === undefined || typeof frontendEndpointName.valueOf() !== 'string') {
@@ -1275,17 +1275,17 @@ function _beginEnableHttps(resourceGroupName, frontDoorName, frontendEndpointNam
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (frontendEndpointName === null || frontendEndpointName === undefined || typeof frontendEndpointName.valueOf() !== 'string') {
@@ -1469,17 +1469,17 @@ function _beginDisableHttps(resourceGroupName, frontDoorName, frontendEndpointNa
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (frontendEndpointName === null || frontendEndpointName === undefined || typeof frontendEndpointName.valueOf() !== 'string') {
diff --git a/lib/services/frontdoorManagement/lib/operations/healthProbeSettings.js b/lib/services/frontdoorManagement/lib/operations/healthProbeSettings.js
index 2976abe5f8..4e8c2c528b 100644
--- a/lib/services/frontdoorManagement/lib/operations/healthProbeSettings.js
+++ b/lib/services/frontdoorManagement/lib/operations/healthProbeSettings.js
@@ -79,17 +79,17 @@ function _listByFrontDoor(resourceGroupName, frontDoorName, options, callback) {
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (this.client.acceptLanguage !== null && this.client.acceptLanguage !== undefined && typeof this.client.acceptLanguage.valueOf() !== 'string') {
@@ -258,17 +258,17 @@ function _get(resourceGroupName, frontDoorName, healthProbeSettingsName, options
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (healthProbeSettingsName === null || healthProbeSettingsName === undefined || typeof healthProbeSettingsName.valueOf() !== 'string') {
@@ -648,17 +648,17 @@ function _beginCreateOrUpdate(resourceGroupName, frontDoorName, healthProbeSetti
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (healthProbeSettingsName === null || healthProbeSettingsName === undefined || typeof healthProbeSettingsName.valueOf() !== 'string') {
@@ -893,17 +893,17 @@ function _beginDeleteMethod(resourceGroupName, frontDoorName, healthProbeSetting
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (healthProbeSettingsName === null || healthProbeSettingsName === undefined || typeof healthProbeSettingsName.valueOf() !== 'string') {
diff --git a/lib/services/frontdoorManagement/lib/operations/loadBalancingSettings.js b/lib/services/frontdoorManagement/lib/operations/loadBalancingSettings.js
index e448ae6d5b..a70f1d0717 100644
--- a/lib/services/frontdoorManagement/lib/operations/loadBalancingSettings.js
+++ b/lib/services/frontdoorManagement/lib/operations/loadBalancingSettings.js
@@ -79,17 +79,17 @@ function _listByFrontDoor(resourceGroupName, frontDoorName, options, callback) {
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (this.client.acceptLanguage !== null && this.client.acceptLanguage !== undefined && typeof this.client.acceptLanguage.valueOf() !== 'string') {
@@ -258,17 +258,17 @@ function _get(resourceGroupName, frontDoorName, loadBalancingSettingsName, optio
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (loadBalancingSettingsName === null || loadBalancingSettingsName === undefined || typeof loadBalancingSettingsName.valueOf() !== 'string') {
@@ -652,17 +652,17 @@ function _beginCreateOrUpdate(resourceGroupName, frontDoorName, loadBalancingSet
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (loadBalancingSettingsName === null || loadBalancingSettingsName === undefined || typeof loadBalancingSettingsName.valueOf() !== 'string') {
@@ -897,17 +897,17 @@ function _beginDeleteMethod(resourceGroupName, frontDoorName, loadBalancingSetti
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (loadBalancingSettingsName === null || loadBalancingSettingsName === undefined || typeof loadBalancingSettingsName.valueOf() !== 'string') {
diff --git a/lib/services/frontdoorManagement/lib/operations/routingRules.js b/lib/services/frontdoorManagement/lib/operations/routingRules.js
index de2f82f988..ab33e89cd5 100644
--- a/lib/services/frontdoorManagement/lib/operations/routingRules.js
+++ b/lib/services/frontdoorManagement/lib/operations/routingRules.js
@@ -78,17 +78,17 @@ function _listByFrontDoor(resourceGroupName, frontDoorName, options, callback) {
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (this.client.acceptLanguage !== null && this.client.acceptLanguage !== undefined && typeof this.client.acceptLanguage.valueOf() !== 'string') {
@@ -256,17 +256,17 @@ function _get(resourceGroupName, frontDoorName, routingRuleName, options, callba
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (routingRuleName === null || routingRuleName === undefined || typeof routingRuleName.valueOf() !== 'string') {
@@ -704,17 +704,17 @@ function _beginCreateOrUpdate(resourceGroupName, frontDoorName, routingRuleName,
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (routingRuleName === null || routingRuleName === undefined || typeof routingRuleName.valueOf() !== 'string') {
@@ -949,17 +949,17 @@ function _beginDeleteMethod(resourceGroupName, frontDoorName, routingRuleName, o
       throw new Error('frontDoorName cannot be null or undefined and it must be of type string.');
     }
     if (frontDoorName !== null && frontDoorName !== undefined) {
-      if (frontDoorName.length > 74)
+      if (frontDoorName.length > 64)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 74');
+        throw new Error('"frontDoorName" should satisfy the constraint - "MaxLength": 64');
       }
       if (frontDoorName.length < 5)
       {
         throw new Error('"frontDoorName" should satisfy the constraint - "MinLength": 5');
       }
-      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/) === null)
+      if (frontDoorName.match(/^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/) === null)
       {
-        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9][a-zA-Z0-9])$/');
+        throw new Error('"frontDoorName" should satisfy the constraint - "Pattern": /^[a-zA-Z0-9]+([-a-zA-Z0-9]?[a-zA-Z0-9])*$/');
       }
     }
     if (routingRuleName === null || routingRuleName === undefined || typeof routingRuleName.valueOf() !== 'string') {