Splunk

Splunk is a log indexing/searching tool.

Documentation

official docs	https://docs.splunk.com/Documentation/Splunk
search docs	https://docs.splunk.com/Documentation/Splunk/8.0.6/Search/GetstartedwithSearch

Query Syntax

Target Hosts

Splunk queries will show up within splunk. Allowlist your host, or denylist splunk hosts.

searchterm host!=host.domain.com

Time Ranges

# earliest/latest can be specified in searchbar
# and can use relative time ranges
#
# DateFmt: %m/%d/%Y:%H:%M:%S
#
# Timezone of UTC is assumed

Error earliest=07/06/2020:17:57:05 latest=+10m

earliest=08/26/2020:15:00:00  # like watching log

searchterm  earliest=07/06/2020:17:57:05  latest=+10m
| rex "id=(<id>\d+)" # regex match, extract 'id'
| where status="404" # select by attribute values
| dedup id           # remove duplicate results
| table id colA      # select only these fields in result