Splunk® Enterprise

Securing Splunk Enterprise

Acrobat logo Download manual as PDF

Splunk Enterprise version 7.1 is no longer supported as of October 31, 2020. See the Splunk Software Support Policy for details. For information about upgrading to a supported version, see How to upgrade Splunk Enterprise.
This documentation does not apply to the most recent version of Splunk® Enterprise. For documentation on the most recent version, go to the latest release.
Acrobat logo Download topic as PDF

Secure deployment servers and clients using certificate authentication

There are certain situations where you might need to use certificate authentication in certain distributed configurations. An example is when you send sensitive server configuration data to a variety of locations outside of your protected network through your firewall. You can manually configure each indexer to communicate with your deployment server.

Splunk Web does not support passwords, so you must remove the password from the private key. For more information, see Get certificates signed by a third party for Splunk Web.

The deployment server cannot properly push certificates to peers. You must configure each member separately.

  1. Create one or more certificates using the same root certificate authority (CA). To learn how to create a certificate, see Appendix A in this manual.
  2. Distribute the certificates to your deployment server and clients.
  3. On each deployment client, edit the $SPLUNK_HOME/etc/system/local/server.conf configuration file to provide the location of your certificates.
    enableSplunkdSSL = true
    sslVersions = tls1.2
    # This is the default (TLS v1.2). It is
    # also the recommended setting.
    serverCert =  <full path to the Privacy Enhanced Mail-format server certificate file>
    # The Splunk daemon generates the default certificate
    # ($SPLUNK_HOME/etc/auth/server.pem) when it starts up. To secure
    # your deployment, replace the default certificate with your own certificate
    # file, in PEM format.
    sslPassword = password
    # The password for the server certificate, if it exists.
    sslRootCAPath = <full path to the operating system root CA certificate>
    # This is a PEM format file that contains one or more root CAs.
    # Do not configure this setting on Windows.
  4. Add the requireClientCert setting under the [sslConfig] stanza to force the deployment clients to authenticate using your certificates:
    requireClientCert = true
  5. This requireClientCert is set to "false" by default. If you change it to true to force Splunk Enterprise to check your client's certificates, Splunk Web and the CLI will also be checked for certificates.

  6. Edit the web.conf configuration file to present a certificate signed by the same root CA so that Splunk Web can connect to the server.

    The following is an example of an edited settings stanza:
    enableSplunkWebSSL = true
    privKeyPath = etc/auth/splunkweb/mySplunkWebPrivateKey.key
    serverCert = etc/auth/splunkweb/mySplunkWebCertificate.pem
    cipherSuite = <your chosen cipher suite (optional)>
Last modified on 23 December, 2022
Securing distributed search heads and peers
Secure Splunk Enterprise services with pass4SymmKey

This documentation applies to the following versions of Splunk® Enterprise: 7.1.0, 7.1.1, 7.1.2, 7.1.3, 7.1.4, 7.1.5, 7.1.6, 7.1.7, 7.1.8, 7.1.9, 7.1.10, 7.2.0, 7.2.1, 7.2.2, 7.2.3, 7.2.4, 7.2.5, 7.2.6, 7.2.7, 7.2.8, 7.2.9, 7.2.10, 7.3.0, 7.3.1, 7.3.2, 7.3.3, 7.3.4, 7.3.5, 7.3.6, 7.3.7, 7.3.8, 7.3.9, 8.0.0, 8.0.1, 8.0.2, 8.0.3, 8.0.4, 8.0.5, 8.0.6, 8.0.7, 8.0.8, 8.0.9, 8.0.10, 8.1.0, 8.1.1, 8.1.2, 8.1.3, 8.1.4, 8.1.5, 8.1.6, 8.1.7, 8.1.8, 8.1.9, 8.1.10, 8.1.11, 8.1.12, 8.1.13, 8.1.14, 8.2.0, 8.2.1, 8.2.2, 8.2.3, 8.2.4, 8.2.5, 8.2.6, 8.2.7, 8.2.8, 8.2.9, 8.2.10, 8.2.11, 8.2.12

Was this documentation topic helpful?

You must be logged into splunk.com in order to post comments. Log in now.

Please try to keep this discussion focused on the content covered in this documentation topic. If you have a more general question about Splunk functionality or are experiencing a difficulty with Splunk, consider posting a question to Splunkbase Answers.

0 out of 1000 Characters