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Veja nesta página as práticas recomendadas para usar o Identity-Aware Proxy (IAP).
Armazenamento em cache
Não use um CDN de terceiros na frente do aplicativo. Os CDNs podem armazenar conteúdo em cache e disponibilizar páginas armazenadas em cache para usuários não autenticados.
Se você tiver recursos grandes e não confidenciais para disponibilizar a partir de um CDN, use um domínio separado para esses recursos, como images.yourapp.com. Use o CDN com esse domínio e adicione o cabeçalho de resposta HTTP Cache-control:
private a todos os objetos que precisam ser disponibilizados somente aos usuários autenticados.
Para maior proteção, verifique o IP de origem das solicitações no seu app para ter certeza de que elas provêm do intervalo de IPs permitido pela regra de firewall.
No Google Cloud console, o IAP mostra um erro ou aviso se as regras de firewall
parecerem estar configuradas incorretamente. O console do IAP Google Cloud não
detecta qual VM é usada para cada serviço. Portanto, essa análise não inclui recursos avançados,
como redes não padrão e tags de regra de firewall. Para ignorar essa análise, ative o IAP com o comando gcloud compute backend-services update.
[[["Fácil de entender","easyToUnderstand","thumb-up"],["Meu problema foi resolvido","solvedMyProblem","thumb-up"],["Outro","otherUp","thumb-up"]],[["Difícil de entender","hardToUnderstand","thumb-down"],["Informações incorretas ou exemplo de código","incorrectInformationOrSampleCode","thumb-down"],["Não contém as informações/amostras de que eu preciso","missingTheInformationSamplesINeed","thumb-down"],["Problema na tradução","translationIssue","thumb-down"],["Outro","otherDown","thumb-down"]],["Última atualização 2025-08-18 UTC."],[[["\u003cp\u003eIdentity-Aware Proxy (IAP) best practices are outlined on this page, including caching, securing applications, and firewall configuration.\u003c/p\u003e\n"],["\u003cp\u003eAvoid using third-party CDNs directly in front of applications protected by IAP to prevent serving cached content to unauthenticated users.\u003c/p\u003e\n"],["\u003cp\u003eTo properly secure applications, use signed headers for App Engine standard environment, Compute Engine, and GKE.\u003c/p\u003e\n"],["\u003cp\u003eEnsure all requests to Compute Engine or GKE are routed through the load balancer and verify traffic is from a Google Front End (GFE) IP.\u003c/p\u003e\n"],["\u003cp\u003eIAP will display errors or warnings if firewall rules appear to be set incorrectly, however, not all advanced features are detectable.\u003c/p\u003e\n"]]],[],null,["# Best practices\n\nThis page describes best practices for using Identity-Aware Proxy\n(IAP).\n\nCaching\n-------\n\n- Don't use a third-party CDN in front of your application. CDNs may cache content and serve cached pages to unauthenticated users.\n - If you have large, non-sensitive resources that you want to serve from a CDN, use a separate domain such as `images.yourapp.com` for these resources. Use the CDN with that domain and add the `Cache-control:\n private` HTTP response header to all objects that should only be served to authenticated users.\n\nSecuring your app\n-----------------\n\nTo properly secure your app, you must use [signed headers](/iap/docs/signed-headers-howto)\nfor [App Engine standard environment](/appengine/docs/about-the-standard-environment),\nCompute Engine, and GKE applications.\n\nConfiguring your firewall\n-------------------------\n\n- Make sure all requests to Compute Engine or GKE are routed through the load balancer:\n - [Configure a firewall rule to allow health checking](/load-balancing/docs/health-checks) and make sure that all traffic to your Virtual Machine (VM) is from a Google Front End (GFE) IP.\n - For additional protection, check the source IP of requests in your app to make sure they're from the same IP range that the firewall rule allows.\n- In the Google Cloud console, IAP displays an error or warning if your firewall rules appear to be set up incorrectly. The IAP Google Cloud console doesn't detect which VM is used for each service, so the firewall analysis doesn't include advanced features like non-default networks and firewall rule tags. To bypass this analysis, enable IAP through the `gcloud compute backend-services update` command."]]
