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https://issues.apache.org/jira/browse/CASSANDRA-15262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17135852#comment-17135852
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Ekaterina Dimitrova commented on CASSANDRA-15262:
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Ok, looks like going back and forth I lost track at some point where it is
committed.
Thank you for the patch and the rebase. I just went through the CI runs
results. LGTM +1
I am not a committer, unfortunately.
> Update defaults for server and client TLS settings
> --------------------------------------------------
>
> Key: CASSANDRA-15262
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15262
> Project: Cassandra
> Issue Type: Bug
> Components: Local/Config
> Reporter: Joey Lynch
> Assignee: Joey Lynch
> Priority: Normal
> Fix For: 4.0, 4.0-alpha
>
>
> The current `server_encryption_options` configuration options are as follows:
> {noformat}
> server_encryption_options:
> # set to true for allowing secure incoming connections
> enabled: false
> # If enabled and optional are both set to true, encrypted and unencrypted
> connections are handled on the storage_port
> optional: false
> # if enabled, will open up an encrypted listening socket on
> ssl_storage_port. Should be used
> # during upgrade to 4.0; otherwise, set to false.
> enable_legacy_ssl_storage_port: false
> # on outbound connections, determine which type of peers to securely
> connect to. 'enabled' must be set to true.
> internode_encryption: none
> keystore: conf/.keystore
> keystore_password: cassandra
> truststore: conf/.truststore
> truststore_password: cassandra
> # More advanced defaults below:
> # protocol: TLS
> # store_type: JKS
> # cipher_suites:
> [TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_DHE_RSA_WITH_AES_128_CBC_SHA,TLS_DHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA]
> # require_client_auth: false
> # require_endpoint_verification: false
> {noformat}
> A couple of issues here:
> 1. optional defaults to false, which will break existing TLS configurations
> for (from what I can tell) no particularly good reason
> 2. The provided protocol and cipher suites are not good ideas (in particular
> encouraging anyone to use CBC ciphers is a bad plan
> I propose that before the 4.0 cut we fixup server_encryption_options and even
> client_encryption_options :
> # Change the default {{optional}} setting to true. As the new Netty code
> intelligently decides to open a TLS connection or not this is the more
> sensible default (saves operators a step while transitioning to TLS as well)
> # Update the defaults to what netty actually defaults to
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