Splunk® Enterprise

Securing Splunk Enterprise

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Splunk server tokens

If a token is corrupt or rejected, you will receive error messages in logs from a universal forwarder. If you do not located the bad token, that forwarder continues to attempt to use the expired universal forwarder token.

To find the missing forwarder token: Edit SPLUNK_HOME/etc/log.cfg as follows:


When both the tokens [the token for the indexer and Forwarder] match, the following messages are generated:


09-15-2015 13:21:30.746 -0700 DEBUG TcpInputProc -  Forwarder token matched

Universal Forwarder:

09-15-2015 13:24:00.343 -0700 DEBUG TcpOutputProc - Indexer 
can use tokens

When the tokens do not match, an error message is generated, for example:

09-15-2015 13:22:01.747 -0700 ERROR TcpInputProc - Exception:  Token not sent by 
forwarder src=! for data received from src=

09-15-2015 13:52:14.803 -0700 ERROR TcpInputProc - Exception:  Token sent by 
forwarder does not match configured tokens src=! 
for data received from src=
Safeguards for risky commands
Avoid malicious CSV files in searches

This documentation applies to the following versions of Splunk® Enterprise: 6.5.0, 6.5.1, 6.5.1612 (Splunk Cloud only), 6.5.2, 6.5.3, 6.5.4, 6.5.5, 6.5.6, 6.5.7, 6.5.8, 6.5.9, 6.6.0, 6.6.1, 6.6.2, 6.6.3, 6.6.4, 6.6.5, 6.6.6, 6.6.7, 6.6.8, 6.6.9, 6.6.10, 6.6.11, 7.0.0, 7.0.1, 7.0.2, 7.0.3, 7.0.4, 7.0.5, 7.0.6, 7.0.7, 7.0.8, 7.1.0, 7.1.1, 7.1.2, 7.1.3, 7.1.4, 7.1.5, 7.2.0, 7.2.1

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