Security

How create Splunk alert based on HTTP status codes?

Pathik
Path Finder

After searching various posts around HTTP status codes, ended up posting new question 😞

 

I would like to create alert if failures are 5% of total traffic. 

My criteria of failure is anything that doesn't match HTTP status code 200, 400, 401, 403

 

Thanks in advance

Pathik

0 Karma

vinothkumark
Path Finder

Hi, can you help on the query if multiple condition needs to be met in the same query? 
Example: status code is 500 and greater than 10% alert should be triggered. also, if status code is 403 and greater than 20% alert should be triggered.

0 Karma

venkatasri
SplunkTrust
SplunkTrust

Hi @Pathik Can you try this.

<your_search> status!=200 OR status!=400 OR status!=401 OR status!=403  
| stats count by status 
| addcoltotals count 
| eventstats max(count) as total 
| eval perc=count/total * 100 
| where perc > 5 AND isnotnull(status) | fields - total
0 Karma

Pathik
Path Finder

Thanks @venkatasri ,

Its not working, applied what you shared. but getting only bad requests. (success count not coming in output at all it seems)

 

Any other things to change?

0 Karma

ITWhisperer
SplunkTrust
SplunkTrust
<your search>
| eval fail=if(status IN (200,400,401,403),0,1)
| stats count as total sum(fail) as fails
| eval percent=100*fails/total
| where percent>5

Pathik
Path Finder

Works like a charm @ITWhisperer , thanks a ton

0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

From Data to Insight: Announcing the Winners of the Splunk Dashboard Contest

Hi Splunkers, First off, thank you to everyone who participated in our very first From Data to Insight: The ...

Splunk Developers: Construct Your Future at the .conf26 Builder Bar

Calling all Splunk architects, platform admins, and app developers: the site is open, and the blueprints are ...

Quick connection discovery mode for forwarders

When a Splunk forwarder loses connectivity to its indexers, it does not always reconnect immediately. In many ...