+ * **Use TLS encryption** - Azure Cache for Redis requires TLS encrypted communications by default. TLS versions 1.0, 1.1 and 1.2 are currently supported. However, TLS 1.0 and 1.1 are on a path to deprecation industry-wide, so use TLS 1.2 if at all possible. If your client library or tool doesn't support TLS, then enabling unencrypted connections can be done [through the Azure portal](cache-configure.md#access-ports) or [management APIs](https://docs.microsoft.com/rest/api/redis/redis/update). In such cases where encrypted connections aren't possible, placing your cache and client application into a virtual network would be recommended. For more information about which ports are used in the virtual network cache scenario, see this [table](cache-how-to-premium-vnet.md#outbound-port-requirements).
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