Internet Access TLS inspection
Microsoft's edit ·
Microsoft's commit message in MicrosoftDocs/entra-docs · commit 57d8f90 · +1 −1 lines · also on GitHub
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- TLS inspection supports up to 100 policies, 1000 rules, and 8000 destinations.
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- Make sure each certificate signing request (CSR) you generate has a unique certificate name and isn't reused. The signed certificate must stay valid for at least 6 months.
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- You can use only one active certificate at a time.
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−- TLS inspection doesn't support HTTP/2 negotiation. Most sites automatically fall back to HTTP/1.1 and continue to work, but sites that require HTTP/2 won't load under inspection. If you encounter one of these, add a custom TLS bypass rule to allow access.
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+- TLS inspection doesn't support HTTP/2 negotiation. Most sites automatically fall back to HTTP/1.1 and continue to work, but sites that require HTTP/2 won't load if TLS inspection is enabled. Add a custom TLS bypass rule to allow access to HTTP/2 only sites.
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- TLS inspection doesn't follow Authority Information Access (AIA) and Online Certificate Status Protocol (OCSP) links when validating destination certificates.
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## Mobile platform
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- Many mobile applications implement certificate pinning, which prevents successful TLS inspection, resulting in handshake failures or loss of functionality. To reduce risk, enable TLS inspection in a test environment first and validate that critical applications are compatible. For apps that rely on certificate pinning, configure TLS inspection custom rules to bypass these destinations using domain-based or category-based rules.
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