Controlling and filtering traffic when containerizing a workload within Kubernetes Pods is just as crucial as a firewall in a more traditional network setup. The difference is that, in this scenario, those capabilities are provided by the Kubernetes NetworkPolicy API. This article will explore Kubernetes NetworkPolicy by creating an example network policy and examining its core parameters. Then, we’ll look at some common NetworkPolicy use cases and learn how to monitor them using kubectl.
Firewalls are the first line of defense in any network. Firewalls can be software or appliances, and organizations can configure them up to allow or disallow some or all IP traffic, or to verify specific traffic types based on rules that use deep packet inspection. For maximum effectiveness, it’s critical to monitor the operation of your firewalls to spot threats and misconfiguration.
If you want to keep your business network online, investing in 24/7 security monitoring is a great option. Here's what you need to know.
Network security is a significant topic that all organizations should consider as a major concern. Regardless of the industry, business, or scope of their operations, all enterprises need to have good network security practices in place to protect against cyberattacks. There are a plethora of different security solutions for different needs, and organizations have to figure out what will work best for them and use the resources that they require.
On December 9, 2021, Apache upended the cybersecurity industry by publishing a zero-day vulnerability (CVE-2021-44228) for its ubiquitous Log4j logging utility. Dubbed Log4Shell, the remote code execution flaw (CVSS score:10) allows an attacker to take control of a connected device and run malicious code, access sensitive data or alter its configuration. Because Logj4 is free and easy-to-use, it’s embedded (often deeply) in Java applications used by IT and OT platforms worldwide.
Corelight Labs, our amazing research team, has been hard at work on another content collection which we are excited to introduce: the Corelight Entity Collection. Corelight evidence is powerful and comprehensive. So comprehensive, in fact, that it can sometimes be hard to know where to start. Providing customers faster ways to find meaningful context in our data was the driving force behind the creation of the Entity Collection.
