The article discusses the challenges of monitoring and securing cloud-based Linux containers, particularly regarding the limitations of traditional diagnostic tools like Wireshark when the underlying hardware is obscured. It emphasizes the use of packet and syscall capture to analyze traffic and detect complex attacks, relying on tools such as eBPF and Sysdig’s Falco for deeper insights. The piece underscores the importance of developing a more ad hoc security approach, sampling operations to understand application behavior more effectively in cloud environments.
Running code in containers and virtual machines hides the underlying hardware, making traditional diagnostic tools less effective for capturing and inspecting network traffic.
Using Wireshark, an experienced security team can identify attacks and data exfiltration, even in complex cloud environments.
There is a need for a more ad hoc approach to security by sampling traffic and operations to understand the behavior of cloud-based applications.
Tools like eBPF are crucial for probing system calls, providing valuable insights into cloud-native application security.
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