Difference between revisions of "Splunk"
From neil.tappsville.com
Jump to navigationJump to searchm (→Search) |
m |
||
Line 20: | Line 20: | ||
host=<host_name> | table _raw | outputcsv rawdump.csv | host=<host_name> | table _raw | outputcsv rawdump.csv | ||
Then download as csv | Then download as csv | ||
+ | |||
+ | == Transactions == | ||
+ | eventtype=jbgp_state_change | transaction host,jbgp_state_instance,jbgp_state_peer startswith=(eventtype=jbgp_state_down) endswith=(eventtype=jbgp_state_up) keepevicted=true | ||
==Transforming Commands== | ==Transforming Commands== |
Revision as of 22:26, 3 February 2022
Contents
Training
https://www.splunk.com/en_us/training/free-courses/splunk-fundamentals-1.html
Search
Match Value (.*) after "want:" and turn it into a field (field_name)
| rex field=_raw "some text before what we want:(?<field_name>.*)"
Match field is NULL
NOT field=*
Group results into 1 hour chunks
| timechart span=1h count(field_name) by field_name
Group by hour of day
| eval eventHour=strftime(_time,"%H") | stats count by eventHour
Export RAW logs
host=<host_name> | table _raw | outputcsv rawdump.csv
Then download as csv
Transactions
eventtype=jbgp_state_change | transaction host,jbgp_state_instance,jbgp_state_peer startswith=(eventtype=jbgp_state_down) endswith=(eventtype=jbgp_state_up) keepevicted=true
Transforming Commands
| top [field field2] limit=0 showperc=False countfield="Renamed something" | Rate [field field2] limit=0
useother=True -- use when limit!=0 so 'extras' go into a catchall bucket
Stats - all stats functions must be done together (in the same pipes)
- Count
- Dc (Distinct Count)
- Sum -- stats sum(price) as "Gross Sales" by product_name
- Avg, Min, Max
- List -- stats list(Asset) as "stuff" by Employee
- Value - similar to list but unique.
IP lookup
| lookup dnslookup clientip as source_ip_field OUTPUT clienthost as output_field
Comments
Uses backticks
`comment("why did I add this random string to the search again?")`
Notify about Disabled Alerts
|REST /services/saved/searches | fields title disabled | where title like "IcareaboutX%" AND disabled=1
SNMP Link down
SNMP_TRAP_LINK* NOT"\.0" process=mib2d | table _raw