Security

search time regular expression.

jsuryaprakash
Path Finder

Hi All , below is my sample data. We are receiving data using key=value pairs like below.

time=time1 | dest_ip=abmncd.com-123.45.64.78|src_ip=nahahha.com-142.36.28.69|action=success........

I just want to extract just ip address's from dest_ip and src_ip fields at search time in props.conf . when i write rex in search its working, below is my search command which is working..

index =test | rex field=dest_ip "(?(\d{1,3}.){3}\d{1,3})" |rex field src_ip "(?(\d{1,3}.){3}\d{1,3})"

But when i create inline extract in props.conf its not working.

[sourcetype]
EXTRACT-dest_ip = dest_ip="(?(\d{1,3}.){3}\d{1,3})"
EXTRACT-src_ip = src_ip ="(?(\d{1,3}.){3}\d{1,3})"

We need to use the same field names to work with CIM datamodels. we are ok with search time extraction or index time extractions also.Please help

Thanks

Tags (1)
0 Karma

gaurav_maniar
Builder

Hi Jsuryaprakash,

Your EXTRACT stanza syntax is incorrect, change it to

EXTRACT-dest_ip = dest_ip\=[^\-]+\-(?P<dest_ip>\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})
EXTRACT-src_ip = src_ip\=[^\-]+\-(?P<src_ip>\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})

Please upvote and accept the answer if it helps.

0 Karma

jsuryaprakash
Path Finder

No, its not working. Still field are coming with dns name ip combinations.

0 Karma

gaurav_maniar
Builder

Splunk restart is restart is required if any configuration changes are done, have restarted splunk after these configuration changes?

Even after restart it doesn't work, let me know.

0 Karma
Get Updates on the Splunk Community!

.conf25 technical session recap of Observability for Gen AI: Monitoring LLM ...

If you’re unfamiliar, .conf is Splunk’s premier event where the Splunk community, customers, partners, and ...

A Season of Skills: New Splunk Courses to Light Up Your Learning Journey

There’s something special about this time of year—maybe it’s the glow of the holidays, maybe it’s the ...

Announcing the Migration of the Splunk Add-on for Microsoft Azure Inputs to ...

Announcing the Migration of the Splunk Add-on for Microsoft Azure Inputs to Officially Supported Splunk ...