Category Archives: API

Accelerating Splunk Dashboards with Base Searches and Saved Searches

Let’s say we have a Splunk dashboard with multiple panels. Each panel has its own search request and all of these requests work independently and simultaneously. If they are complex enough, rendering the dashboard may take quite a long time and some panels may even fall by timeout.

Accelerating Splunk Dashboards

How to avoid this? The first step is to understand how the searches are related. May be it is possible to select some base searches, and reuse their results in other child-searches. It’s also possible to get cached results from the “Saved Searches” (another name of Reports in Splunk GUI).

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How to create and manage Splunk dashboards via API

In the previous post “How to correlate different events in Splunk and make dashboards” I mentioned that Splunk dashboards can be presented in a simple XML form. You can generate it with some script and then copy-past it in Splunk GUI.

Splunk dashboard manage api

However, this manual operations can make the process of debugging dashboards really annoying. It would be much easier to send dashboard XML content to Splunk using Splunk API. And it is actually possible. 🙂

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Retrieving IT Asset lists from NetBox via API

A little bit more about IT Asset Inventory of Internal Network, that your IT team can provide. 😉

I have recently worked with NetBox – an open source IP address management (IPAM) and data center infrastructure management (DCIM) solution developed by well-known cloud hosting provider DigitalOcean.

NetBox api

It’s not really about security, not even a CMDB. But, security team still might be interested in NetBox, because it makes possible to track the hosts in some critical subnet without active scanning, providing great visibility of assets. Here I will show a small example of NetBox API usage.

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Asset Inventory for Internal Network: problems with Active Scanning and advantages of Splunk

In the previous post, I was writing about Asset Inventory and Vulnerability Scanning on the Network Perimeter. Now it’s time to write about the Internal Network.

Typical IT-infrastructure of a large organization

I see a typical IT-infrastructure of a large organization as monstrous favela, like Kowloon Walled City in Hong Kong. At the beginning it was probably wisely designed, but for years it  was highly effected by spontaneous development processes in various projects as well as multiple acquisitions. And now very few people in the organization really understand how it all works and who owns each peace.

There is a common belief that we can use Active Network Scanning for Asset Inventory in the organization. Currently, I’m not a big fan of this approach, and I will try to explain here the disadvantages of this method and mention some alternatives.

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Sending tables from Atlassian Confluence to Splunk

Sometimes when we make automated analysis with Splunk, it might be necessary to use information that was entered or edited manually. For example, the classification of network hosts: do they belong to the PCI-DSS Scope or another group critical hosts or not.

Sending tables from Atlassian Confluence to Splunk

In this case, Confluence can be quite a convenient tool for maintaining such a registry. Page with a table can be created very quickly and multiple employees can immediately start working with it.

Let’s see how to convert such table, export it to Splunk and use it with other data.

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