Splunk Search

How to exclude events through lookup?

mmoermans
Path Finder

Hi there,

trying to exclude some events through the use of a lookup but it's not working for some reason:

index=main src_ip="192.168.0.0/16" (dest_ip!="127.0.0.1" OR dest_ip!="127.0.0.2") | dedup dest_ip | lookup dns.csv destdns_ip as dest_ip OUTPUTNEW query  | search NOT [| inputlookup dns_excludes.csv | fields query ] | table dest_ip,query

dns.csv
dest_ip, query
127.0.0.5, windows.com

dns_excludes.csv
query
windows.com

It shows the data normally but doesn't exclude the dns_excludes.csv. Does anyone know what I'm doing wrong here?

0 Karma
1 Solution

somesoni2
Revered Legend

What does your lookup table contains? (provide field names and their sample values)

Also, give this a try (query is a special keyword in Splunk, so avoiding that)

 index=main src_ip="192.168.0.0/16" (dest_ip!="127.0.0.1" OR dest_ip!="127.0.0.2") | dedup dest_ip | lookup dns.csv destdns_ip as dest_ip OUTPUTNEW query  as query1 | search NOT [| inputlookup dns_excludes.csv | fields query | rename query as query1 ] 
 rename query1 as query | table dest_ip,query

View solution in original post

0 Karma

somesoni2
Revered Legend

What does your lookup table contains? (provide field names and their sample values)

Also, give this a try (query is a special keyword in Splunk, so avoiding that)

 index=main src_ip="192.168.0.0/16" (dest_ip!="127.0.0.1" OR dest_ip!="127.0.0.2") | dedup dest_ip | lookup dns.csv destdns_ip as dest_ip OUTPUTNEW query  as query1 | search NOT [| inputlookup dns_excludes.csv | fields query | rename query as query1 ] 
 rename query1 as query | table dest_ip,query
0 Karma

mmoermans
Path Finder

This fixed it, thanks!

0 Karma

MuS
SplunkTrust
SplunkTrust

Hi @mmoermans, please accept this answer if it helped to solve your problem.

cheers, MuS

0 Karma
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