Getting Data In

How to split events in a syslog file to separate index

wczimmerman
Engager

I have a simple syslog server that collects data from many hosts and splunk is indexing the syslog logfile. I would like to separate data from a handful of hosts into a separate index at index time. What would be the best way to go about this?

Tags (2)

Ron_Naken
Splunk Employee
Splunk Employee

It would be ideal to send the syslog data straight to Splunk, and setup a separate port for the for the handful of hosts -- since you can specify an Index when defining the data input.

Otherwise, you could use a RegEx to identify the data you want to move, like this:

PROPS.CONF:
[source::...mysyslogfile...]
TRANSFORMS-movestuff = xf_index

TRANSFORMS.CONF:
[xf_index]
REGEX = matchthis
DEST_KEY = _MetaData:Index
FORMAT = thisindex

Use FORMAT to specify the index name. Don't forget to create your index, first.

Get Updates on the Splunk Community!

Application management with Targeted Application Install for Victoria Experience

  Experience a new era of flexibility in managing your Splunk Cloud Platform apps! With Targeted Application ...

Index This | What goes up and never comes down?

January 2026 Edition  Hayyy Splunk Education Enthusiasts and the Eternally Curious!   We’re back with this ...

Splunkers, Pack Your Bags: Why Cisco Live EMEA is Your Next Big Destination

The Power of Two: Splunk + Cisco at "Ludicrous Scale"   You know Splunk. You know Cisco. But have you seen ...