Force UF(6.4.5) and Deployment Server(6.2.3) to use TLS 1.2

[yutaka1005]

https://answers.splunk.com/answers/468642/deployment-server-flooded-with-ssl-handshake-error-1.html

By seeing answers above, I think that I should configure like below, if I want to force Deployment Server and Universal Forwarder to use TLS 1.2.

In Deployment Server

[sslConfig]
sslVersions = tls1.2,-ssl2, -ssl3

In Universal Forwarder

[sslConfig]
sslVersionsForClient = tls1.2,-ssl2, -ssl3

However, in my environment Universal Forwarder is ver 6.4.5 and Deployment Server is ver 6.2.3, and there isn't stanza sslVersionsForClient in ver 6.2.3.

First of all, is the setting above correct?
Also, even if the ver is different and there is a stanza that does not exist on other side, will it work without problems?

If someone tell me about it, I appreciate.

[solarboyz1]

I would just set sslVersions in the server.conf on both, and not worry about sslVersionsForClient.

By setting it in the server.conf, I believe it becomes the default setting for any SSL services running (management port, HEC, etc..).

[solarboyz1 · Accepted solution]

If the stanza is not in deploymentclient.conf it uses the settings from server.conf.

[solarboyz1]

So, what you should be doing on the client and server, is setting the sslversions in server.conf, if that wasn't clear in my answer

[yutaka1005]

Thank for answer!

So you means that I should set sslVersions stanza to both, and I should set sslVersionsForClient to Universal Forwarder, right?

[yutaka1005]

I could force tls1.2 to connection of Universal Forwarder and Deployment Server by setting sslVersions in server.conf of only Deployment Server.