Skip to main content

entropy.ubuntu.com giveth, and taketh away

learning

A closer look at what data is sent to entropy.ubuntu.com on Cloud instance boot

Routine Test​

At Chaser, we routinely test a variety of real-world setups through the DiscrimiNAT OTF. It helps keep on top of implementation subtleties by different vendors and identify any regressions early as we improve the product.

FQDN filter for Ubuntu on GCP egress, shall we?

So we fire up Ubuntu Bionic Beaver LTS this time, with egress allowed to 0.0.0.0/0 on all ports.

Windows Server 2019 Phoning Home on an SSLv3 Line

learning

Observation of traffic from a Windows Server 2019 instance with a firewall restricting its egress, and a CloudWatch exercise in filtering and aggregation

Routine Test​

At Chaser, we routinely test a variety of real-world setups through the DiscrimiNAT OTF. It helps keep on top of implementation subtleties by different vendors and identify any regressions early as we improve the product.

FQDN filter for Windows on AWS egress, shall we?

So we fire up the latest and greatest Windows this time, with outbound allowed to 0.0.0.0/0 on all ports.