the order of whitelist in servercalss ?

[sieutruc]

Hello,

I don't know what configuration my clientname win23_ ios_____dc_mm should gets in the configuration file below:

serverclasss.conf

[global]
blacklist.0 = *

[serverClass:AppsForOps]
filterType = whitelist
whitelist.0=win23_*

[serverClass:AppsForOps1]
filterType = whitelist
whitelist.0=win23_ ios_____dc*

So my question is which serverclass configuration my machine will get ?

[kristian_kolb · Accepted solution]

Both. It's just a function to group deployment clients on some common attribute. think of it like this for your three hosts;

win-prod-www1.company.com
win-prod-www2.company.com
win-test-www.company.com

1 and 2 are production machines, 3 is test. All are windows/iis. All WinEventLogs should go to the same index regardless of prod/test, iis logs in prod should be kept for 1 year, iis logs for test should be kept for 30 days.

[serverClass:windows] 
whitelist.0 = win*
[serverClass:windows:app:WinEvt] 

[serverClass:web_prod] 
whitelist.0 = win-prod*
[serverClass:web_prod:app:iis_prod]

[serverClass:web_test] 
whitelist.0 = win-test*
[serverClass:web_test:app:iis_test] 

Then you define 3 different apps in $SPLUNK_HOME/etc/deployment-apps/<app_name>

All hosts will get the WinEvt app, since they all match that class.
1 and 2 will get the iis_prod app (directing the web logs to one index)
test will get the iis_test app (directing the web logs to another index, with a short retention time).

---

UPDATE:

Naturally, there is more than one way to do it. In the above scenario, you could also have this config to achieve the same results (contents of the apps are the same as before);

[serverClass:web_prod] 
whitelist.0 = win-prod*
[serverClass:web_prod:app:iis_prod]
[serverClass:web_prod:app:WinEvt] 

[serverClass:web_test] 
whitelist.0 = win-test*
[serverClass:web_test:app:iis_test] 
[serverClass:web_test:app:WinEvt] 

OR you could merge the contents of the apps into a single app per serverClass

[serverClass:web_prod] 
whitelist.0 = win-prod*
[serverClass:web_prod:app:iis_prod_and_winevent]

[serverClass:web_test] 
whitelist.0 = win-test*
[serverClass:web_test:app:iis_test_and_winevent] 

There will always be trade-offs between modularity of configurations (apps) and clarity of the serverclass.conf. There is no single 'best' solution.

Hope this helps,

Kristian

[kristian_kolb]

see update above.