The remote service accepts connections encrypted using SSL 2.0 and/or SSL 3.0. These versions of SSL are affected by several cryptographic flaws. An attacker can exploit these flaws to conduct man-in-the-middle attacks or to decrypt communications between the affected service and clients.
NIST has determined that SSL 3.0 is no longer acceptable for secure communications. As of the date of enforcement found in PCI DSS v3.1, any version of SSL will not meet the PCI SSC'S definition of 'strong cryptography'.
It is configurable in multiple conf files.
for example in web.conf you can set cipherSuite and sslVersions in the [settings] stanza or sslCipher in outputs.conf.
You should review minimally:
http://docs.splunk.com/Documentation/Splunk/latest/Admin/Inputsconf
http://docs.splunk.com/Documentation/Splunk/latest/Admin/Serverconf
http://docs.splunk.com/Documentation/Splunk/latest/Admin/Webconf
http://docs.splunk.com/Documentation/Splunk/latest/Admin/Outputsconf
I have added in inputs.conf and outputs.conf but still the same error.
[default]
sslVersions=tls1.2