We want to run linux command via splunk web to linux servers in which UF is installed. For example, top, ps.
I found there are some build-in scripts such like ps.sh in Splunk Add-on for Unix and Linux.
I wonder if there is any method to use theses build-in scripts to run custom search command via splunk web?
I know we can install Splunk add-on in linux UF and use [script:xxxx] stanza to check result of linux commands, however, we want to run command to get real-time result.
You can check Forwarder toolbox - TA-forwarderquery App https://splunkbase.splunk.com/app/2775/, from here you can run REST command from your search head to indexer so using rest you can enable, disable script stanza (ref document http://docs.splunk.com/Documentation/Splunk/6.6.4/RESTREF/RESTinput#data.2Finputs.2Fscript).
If you don't want to use Forwarder toolbox - TA-forwarderquery App, another approach is create your own custom command in which you will pass hostname and enabled/disable parameter which will fire REST API to the forwarders which will enable and disable script stanza in inputs.conf
In both the cases you must have communication allowed on port 8089 from SH to UF and as far as I know if you want to run REST on UF from remote servers, on UF admin user's default password should be changed otherwise you can't fire REST on UF from remote server.
Installing a UF on your Linux servers will give you real time results. - This would be the recommended approach,
However if you really want to monitor a remote system 'from' your search head, technically you could write a script to login via ssh, run the command and output the results, and run this as a scripted input - it is however a horrible solution and wont scale.
The ideal picture is :
1, users input search command towards the specific US in splunk web,
2.The script in UF will be enabled, and script is running.
3.After that, run search command in splunk web again to disable the script in UF.
No Login via SSH.
This is some customers reqeust, however, i doubt whether the splunk remote command can be run in Search head web toward UF.
Hi - I added this post - If you find it useful, please upvote the answer, or add your own solution if you found another way!