Because the API server processes all changes to Kubernetes state-and serves as the gatekeeper to the backend database that stores this state-the API server is an ideal point for capturing all changes that occur within a cluster. What are Kubernetes audit logs?Īudit logs record requests to the Kubernetes API. We also presented this topic at KubeCon North America 2019-you can watch the talk here. Monitoring Kubernetes audit logs with Datadog.How to configure Kubernetes audit log collection.In this post, we’ll show you how to leverage the power of Kubernetes audit logs to get deep insight into your clusters. Along the way, audit logs have been extremely helpful for tracking user interactions with theĪPI server, debugging issues, and getting clarity into our workloads. | root & if then /usr/lib/php/sessionclean fi | /etc/cron.Clusters in production across multiple clouds. | root if & then /usr/share/mdadm/checkarray -cron -all -idle -quiet fi | /etc/cron.d/mdadm | | root test -x /usr/sbin/anacron || ( cd / & run-parts -report /etc/cron.monthly ) | /etc/crontab | | root test -x /usr/sbin/anacron || ( cd / & run-parts -report /etc/cron.weekly ) | /etc/crontab | | root test -x /usr/sbin/anacron || ( cd / & run-parts -report /etc/cron.daily ) | /etc/crontab | | root cd / & run-parts -report /etc/cron.hourly | /etc/crontab | The second method of osquery log analysis is making a generic query, and using Python to further filter the output and identify something potentially suspicious.įor example, in the built-in incident-response pack for Linux, there’s a crontab query: SELECT *įROM crontab Code language: SQL (Structured Query Language) ( sql )Īnd some example output: osquery> SELECT command,path FROM crontab The rule is analyzing that query results came from a query in the unwanted-chrome-extensions pack and the action is in the ”added” state, meaning that new data was detected. To schedule this query, we add it into the schedule in our nf: '.format(Įvent) Code language: Python ( python ) +-+-+-+-+-+-+ Code language: Shell Session ( shell ) | type | user | tty | host | time | pid | The nf controls these settings, including other daemon ( osqueryd) behaviors.įor example, the following query output can display all currently logged in osquery> SELECT * FROM logged_in_users WHERE type = 'user' Osquery periodically reports data by querying specific tables and sending results in JSON format to the configured logger_plugin(s), which can be the filesystem, a TLS endpoint, or AWS. Osquery can be installed on Mac, Linux, or Windows. To install osquery, follow the instructions here. This tutorial was last updated in February 2021. Panther also comes with pre-installed rules based on default query packs, which provides value for most osquery deployments.įor the purpose of this tutorial, we will assume an osquery installation on Ubuntu 18.04. In this tutorial, we will walk through how to configure osquery with Panther to create an end-to-end security alerting pipeline to send logs for analysis and then notifying your team on a specific activity. Security teams use osquery to track activity in their fleet such as user logins, installed programs, running processes, network connections, or system log collection. Osquery is a powerful, host-based application that exposes the operating system as a set of SQLite tables. Onboard and analyze Osquery logs with Panther Overview
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