blocks|key|1446022|text|那么，我如何锁定对应用程序服务的访问，以便只有通过网关的流量才能访问它？|type|blockquote|depth|inlineStyleRanges|entityRanges|data|1446023|根据我的理解，应用网关什么也做不了。但是你可以利用对azure网站的IP和域限制，允许流量通过你的应用程序网关访问你的蓝色网络应用程序。下面是一个类似的问题。对于一个简单的方法，您可以登录到蔚蓝门户，选择您的web应用程序，单击“设置>网络”，并单击“配置IP限制下的IP限制”部分，以添加您的自定义IP限制。|unstyled|offset|length|style|BOLD|1446024|entityMap|0|LINK|mutability|MUTABLE|url|https://learn.microsoft.com/en-us/azure/application-gateway/application-gateway-introduction|1|https://azure.microsoft.com/en-us/blog/ip-and-domain-restrictions-for-windows-azure-web-sites/|2|https://stackoverflow.com/questions/41958723/how-to-restrict-access-to-an-app-service-using-a-setting-inside-the-azure-portal^0|0|3I|6|7|4|0|P|F|1|24|2|2|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@$E|W|F|X|G|H]]|9|@$E|Y|F|Z|1|10]|$E|11|F|12|1|13]|$E|14|F|15|1|16]]|A|$]]|$1|I|3|-4|5|D|7|17|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P]]|Q|$5|L|M|N|A|$O|R]]|S|$5|L|M|N|A|$O|T]]]]

<blockquote>
 So how to I lock down access to the app service so that only traffic which comes through the gateway can access it?
</blockquote>

Per my understanding, you could do nothing with <a href="https://learn.microsoft.com/en-us/azure/application-gateway/application-gateway-introduction" rel="nofollow noreferrer">Application Gateway</a>. But you could leverage <a href="https://azure.microsoft.com/en-us/blog/ip-and-domain-restrictions-for-windows-azure-web-sites/" rel="nofollow noreferrer">IP and Domain Restrictions for azure web sites</a> for allowing the traffic comes through your application gateway to access your azure web app. Here is a similar <a href="https://stackoverflow.com/questions/41958723/how-to-restrict-access-to-an-app-service-using-a-setting-inside-the-azure-portal">issue</a>. For a simple way, you could log into azure portal, choose your web app, click "SETTING > Networking" and click Configure IP Restrictions under IP Restrictions section for adding your custom IP Restrictions.

blocks|key|2737826|text|我在ARM模板中添加了以下内容，以设置应用程序服务的web.config：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2737827|{
++++++"type":+"Microsoft.Web/sites/config",
++++++"name":+"[variables('website_config')]",
++++++"apiVersion":+"2016-08-01",
+++++....
++++++++"ipSecurityRestrictions":+[
++++++++++{
++++++++++++"ipAddress":+"[reference(resourceId('Microsoft.Network/publicIPAddresses',+variables('publicIPAddressName'))).IpAddress]",
++++++++++++"subnetMask":+"255.255.255.255"
++++++++++}
++++++++++]+
++++++},
++++++"dependsOn":+[
++++++++"[resourceId('Microsoft.Web/sites',+variables('websites_name'))]",
++++++++"[resourceId('Microsoft.Network/publicIPAddresses',+variables('publicIPAddressName'))]"
++++++]
+++++},|code-block|syntax|javascript|2737828|资源公共IP地址是网关设置的地址。|2737829|我再也不能使用url+http://.azurewebsites.net访问应用程序服务了，这正是我想要的。最初，当我访问公共IP地址时，我会收到错误消息："502+-+Web服务器在充当网关或代理服务器时接收到无效响应。“然而，经过一段时间后，它工作得很好。|offset|length|2737830|entityMap|0|LINK|mutability|MUTABLE|url|http://.azurewebsites.net/^0|0|0|0|B|P|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|X|8|@]|9|@$K|Y|L|Z|1|10]]|A|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

I have added the following to my ARM template to set up the web.config for the app service:

<pre><code>{
 "type": "Microsoft.Web/sites/config",
 "name": "[variables('website_config')]",
 "apiVersion": "2016-08-01",
 ....
 "ipSecurityRestrictions": [
 {
 "ipAddress": "[reference(resourceId('Microsoft.Network/publicIPAddresses', variables('publicIPAddressName'))).IpAddress]",
 "subnetMask": "255.255.255.255"
 }
 ] 
 },
 "dependsOn": [
 "[resourceId('Microsoft.Web/sites', variables('websites_name'))]",
 "[resourceId('Microsoft.Network/publicIPAddresses', variables('publicIPAddressName'))]"
 ]
 },
</code></pre>

The resource public IP addresses is the one set up by the gateway

I can no longer access the app service using the url http://.azurewebsites.net which is what I want. Initially when I accessed the public IP address I get the error message: "502 - Web server received an invalid response while acting as a gateway or proxy server." however after a bit it worked fine.

blocks|key|1446092|text|在Azure中，转到Web服务的“访问限制”。然后选择只从应用程序网关所在的VNet和子网访问应用程序。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1446093|📷|atomic|offset|length|1446094|​|1446095|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/7a23c734ea0175217344e963aeede62e.png|imageAlt^0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|S|8|@]|9|@$E|T|F|U|1|V]]|A|$]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P|Q|-4]]]]

In Azure Portal go to the "Access Restriction" of your Web service.
Then choose to access the application only from VNet and subnet where your application gateway resides.
<a href="https://i.stack.imgur.com/PmVLm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/PmVLm.png" alt="enter image description here"></a>

I have setup an azure application gateway with web application firewall to route traffic to an azure app service. This requires setting up a VPN. I have followed instructions similar to this: <a href="https://learn.microsoft.com/en-us/azure/application-gateway/application-gateway-web-app-powershell" rel="nofollow noreferrer">https://learn.microsoft.com/en-us/azure/application-gateway/application-gateway-web-app-powershell</a>

However it doesn't explain how to limit traffic to the app service only via the application gateway. 

If I go into app service networking tab there is an option to use VNet integration . I thought this might be a way to lock down access through the gateway to the app service but I can't select the gateway VPN because azure tells me 'This virtual network has no gateway'. 

So how to I lock down access to the app service so that only traffic which comes through the gateway can access it?

Azure Application Gateway locked down route to app service

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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