Apache Kafka is using a dedicated port to establish secure communication between customers and brokers using SSL. You should enable it due to default setting as disable.
You can refer this article, which may help to install SSL on Kafta -
http://kafka.apache.org/documentation.html#security_ssl
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These links could be help you.
http://www.splunk.com/themes/splunk_com/img/assets/pdfs/education/SplunkDeploymentGuide2_1.pdf
http://dev.splunk.com/restapi
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Perhaps something like this?
sourcetype="IDS" | transaction id type | stats sum(id2) by id as counts | table id type counts | sort -counts
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For creating your own certificate with OpenSSL, you should specify the "Common Name" *.example.com instead of server1.example.com or web.example.com while generating the certificate signing request (CSR). It will secure your all sub-domains under the example.com.
It is recommended to use trusted CA signed certificate for reduce the risk from future cyber attacks.
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