The search returns the event with the _time value 00:15:05, which is the event with the most recent timestamp. Sourcetype=secure invalid user "sshd" | table _time source _raw | stats latest(_raw) You extend the search using the latest function. You use the table command to see the values in the _time, source, and _raw fields. You run the following search to locate invalid user login attempts against a specific sshd (Secure Shell Daemon). Returns the chronologically latest seen occurrence of a value in a field. | mstats earliest_time(_value) where index=_metrics metric_name=deploy* BY metric_name span=1m It is designed to return the earliest UNIX time values on every minute for each metric_name that begins with deploy. The following search runs against metric data. Alternatively you can use the rate counter to do the same thing. If you have metrics data, you can use earliest_time function in conjunction with the earliest, latest, and latest_time functions to calculate the rate of increase for a counter. You can use this function with the mstats, stats, and tstats commands. Returns the UNIX time of the chronologically earliest-seen occurrence of a given field value. The search returns the event with the _time value 00:23:28, which is the event with the oldest timestamp. Sourcetype=secure invalid user "sshd" | table _time source _raw | stats earliest(_raw) You extend the search using the earliest function. Sat 00:13:45 mailsv1 sshd: Failed password for invalid user testuser from 194.8.74.23 port 3626 ssh2 Mon 00:15:05 mailsv1 sshd: Failed password for invalid user tomcat from 67.170.226.218 port 1490 ssh2 The results appear on the Statistics tab and look something like this: Sourcetype=secure invalid user "sshd" | table _time source _raw You run the following search to locate invalid user login attempts against a sshd (Secure Shell Daemon). Use the time range All time when you run the search. To try this example on your own Splunk instance, you must download the sample data and follow the instructions to get the tutorial data into Splunk. This function processes field values as strings.īasic example This example uses the sample data from the Search Tutorial. You can use this function with the chart, mstats, stats, timechart, and tstats commands. Returns the chronologically earliest seen occurrence of a value in a field.
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