Gravwell has officially supported Netflow v5 and IPFIX for some time. As of Gravwell 3.3.3, we're happy to announce that we now support Netflow v9 as well! This post will talk about the essential differences between Netflow v9 and IPFIX, how we implemented support, and how to get up and running with Netflow v9 ingest. We'll also talk about some pretty serious efficiency improvements we made in our IPFIX/Netflow v9 parsing module.
If your enterprise is using Office 365, your users are generating log entries every time they log in, upload files to OneDrive, send an email--the logging is pretty extensive! You can analyze these log events in the O365 console, but wouldn't it be nice to pull them into Gravwell and correlate with other data sources? Thanks to the new Office 365 ingester, you can.
DNS auditing is an integral part of any I.T. security program. Name resolutions can act as a great tip for discovering malware, command and control streams, or misbehaving employees. Acquiring DNS audit data can be difficult with some DNS servers (*cough* Windows *cough*); for this post we are going to show an extremely easy method of getting DNS audit data directly into Gravwell.
To celebrate the release of the Gravwell Community Edition we are also releasing a standalone collectd ingester. Collectd is an excellent tool for monitoring the health of hardware, systems, and applications. For this post we will be demonstrating the installation and configuration of collectd to monitor the health and status of a few machines. We will be providing dashboard import codes so that you can quickly and easily import our ready made dashboards. The collectd ingester is part of the core suite of ingesters and is open source on github.
We're excited to join with Nozomi Networks in announcing our integration partnership which was piloted in the ICS Village at the RSA Sandbox in San Francisco earlier this year. Attendees at RSA were also able to see the first glimpse of the newly unveiled ICS Village. For those unfamiliar with conference villages, the idea is to create a hands-on learning environment for security professionals to learn, hack, or break equipment and software that they may not experience on a day-to-day basis. The Gravwell founders have a long history in the ICS space and we believe in the village mission as we think that ICS/SCADA (more so than most industries) could benefit from some disruption and fresh ideas. The ICS Village can be found at many events this year including DEFCON and EnergySec (full event schedule can be found at https://www.icsvillage.com/events).
Thanks to Gravwell's Google PubSub ingester, it's easy to collect logs and other data from services deployed in the Google Cloud Platform. In this blog post, we'll show how to set up Gravwell in GCP and ingest system logs from your virtual machines.