Splunk Search

field extraction for error message

Hema_Nithya
Explorer

I want to extract the  following information make it as a field as "error message" .

index=os source="/var/log/syslog" "*authentication failure*" OR "Generic preauthentication failure"

Events example :

Nov 28 01:02:31 server1 sssd[ldap_child[12010]]: Failed to initialize credentials using keytab [MEMORY:/etc/krb5.keytab]: Generic preauthentication failure. Unable to create GSSAPI-encrypted LDAP connection.

Nov 28 01:02:29 server2  proxy_child[1939385]: pam_unix(system-auth-ac:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=10.177.46.57 user=hippm

Labels (1)
0 Karma

bowesmana
SplunkTrust
SplunkTrust

What defines the start and end of the error text in each of those examples and how much of that do you want to get in error_message

You could very simply do this

| rex "\]:\s(?<error_message>.*)"

which would take everything after the ]: to the end of the event

0 Karma
Get Updates on the Splunk Community!

See just what you’ve been missing | Observability tracks at Splunk University

Looking to sharpen your observability skills so you can better understand how to collect and analyze data from ...

Weezer at .conf25? Say it ain’t so!

Hello Splunkers, The countdown to .conf25 is on-and we've just turned up the volume! We're thrilled to ...

How SC4S Makes Suricata Logs Ingestion Simple

Network security monitoring has become increasingly critical for organizations of all sizes. Splunk has ...