Splunk Search

How do you count the total # of hostnames and the total # when that value is blank.?

DEAD_BEEF
Builder

I have network logs and sometimes the DNS name is there, and sometimes it isn't. I am struggling to create a simple table that shows me the total # of hostnames when there is a value and the total # when it is blank.

sample data

host       hostname
1.1.1.1    host-1.com
2.2.2.2
3.3.3.3    host-3.com
4.4.4.4    host-4.com
5.5.5.5

desired output

Named    Blank
3        2

current query

| tstats count where index=network by host prestats=t
| lookup dnslookup clientip as host OUTPUT clienthost as hostname
| eventstats count(eval(NOT hostname="*")) AS Blank count(eval(hostname="*")) AS Named by hostname

final working query

| tstats count where index=network by host 
| lookup dnslookup clientip as host OUTPUT clienthost as hostname
| stats count(eval(isnull(fqdn))) AS Blank count(eval(isnotnull(fqdn))) AS Named 
0 Karma
1 Solution

whrg
Motivator

Try it like this:

... | stats count(eval(isnull(hostname))) AS Blank count(eval(isnotnull(hostname))) AS Named

View solution in original post

0 Karma

whrg
Motivator

Try it like this:

... | stats count(eval(isnull(hostname))) AS Blank count(eval(isnotnull(hostname))) AS Named
0 Karma

DEAD_BEEF
Builder

That worked perfectly, thanks @whrg! I was going in circles with eventstats.

0 Karma
Get Updates on the Splunk Community!

October Community Champions: A Shoutout to Our Contributors!

As October comes to a close, we want to take a moment to celebrate the people who make the Splunk Community ...

Community Content Calendar, November Edition

Welcome to the November edition of our Community Spotlight! Each month, we dive into the Splunk Community to ...

Stay Connected: Your Guide to November Tech Talks, Office Hours, and Webinars!

What are Community Office Hours? Community Office Hours is an interactive 60-minute Zoom series where ...