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Backport of Add documentation for tls_max_version into release/1.13.x #19427

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7 changes: 7 additions & 0 deletions website/content/docs/configuration/listener/tcp.mdx
Original file line number Diff line number Diff line change
Expand Up @@ -133,6 +133,13 @@ default value in the `"/sys/config/ui"` [API endpoint](/vault/api-docs/system/co
`tls_min_version` and `tls_max_version` parameters) are widely considered
insecure.

- `tls_max_version` `(string: "tls13")` – Specifies the maximum supported
version of TLS. Accepted values are "tls10", "tls11", "tls12" or "tls13".

~> **Warning**: TLS 1.1 and lower (`tls10` and `tls11` values for the
`tls_min_version` and `tls_max_version` parameters) are widely considered
insecure.

- `tls_cipher_suites` `(string: "")` – Specifies the list of supported
ciphersuites as a comma-separated-list. The list of all available ciphersuites
is available in the [Golang TLS documentation][golang-tls].
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