Configurable TLS cipher suites and versions; disallow weak ciphers #4269
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disallow 3DES and RC4 ciphers add documentation for tls_cipher_suites
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dadgar
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May 9, 2018
nomad/server.go
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| tlsConf := tlsutil.NewTLSConfiguration(newTLSConfig) | ||
| tlsConf, err := tlsutil.NewTLSConfiguration(newTLSConfig) | ||
| if err != nil { | ||
| return err |
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If the error is logged by the caller we should log here
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| - `tls_min_version` - Specifies the minimum supported version of TLS. Accepted | ||
| values are "tls10", "tls11", "tls12". Defaults to TLS 1.2. | ||
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Any reason we aren't also exposing: https://www.consul.io/docs/agent/options.html#tls_prefer_server_cipher_suites
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I wanted to keep the PR minimal to make reviewing simpler, I could add this in a follow up PR.
dadgar
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May 10, 2018
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I'm going to lock this pull request because it has been closed for 120 days ⏳. This helps our maintainers find and focus on the active contributions. |
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By default, TLS 1.2 and a subset of safe ciphers are allowed. If operators want to enable TLS 1.0 and unsafe ciphers, this can be done via the agent configuration.