When something prevents web applications from proper functioning, you have to investigate into all levels: in your infrastructure (K8s based in our case), third-party services or in the code itself.

Our stories include a poorly prepared Kafka in Docker, an unexpected network issue for ZooKeeper & ClickHouse, a faulty hardware in the data center, and the PgSQL database optimization.

Our new exciting SRE/Ops stories include complicated Linux server migration (bare-metal to VM), large PostgreSQL replica recovery, small case with ClickHouse Kubernetes operator, and abnormal result of CockroachDB upgrade.

Argo CD is a popular Kubernetes continuous deployment tool that enables GitOps workflow. The tool enables developers to manage…

Tanya Janca, Founder of We Hack Purple Academy, talks with Microsoft about the biggest application security challenges and AppSec’s role in cybersecurity.

Today, I open-sourced runj, a new experimental, proof-of-concept OCI-compatible runtime for FreeBSD jails. For the past 6.5 years I’ve been working on Linux containers, but never really had much experience with FreeBSD jails. runj (pronounced “run jay”) is…

Nzyme - Free and open Network Defense System.

By Reinier Haasjes, Senior System Administrator, Adyen

Intro The OAuth2 authorization protocol has been under fire for the past ten years. You've probably already heard about plenty of "return_uri" tricks, token leakages, CSRF-style attacks on clients, an

What is a LAN? What is a network segment? How are L1, L2, and L3 segments related? What does it take to send an IP packet from one host to another? What is the difference between LAN, VLAN, and VXLAN?

memory-bounded speedup model

Cheryl Hung, VP Ecosystem at CNCF, points out 10 trends to look forward to in cloud native

Grant Miller is the co-founder and CEO of Replicated, which helps operationalize and scale the delivery of Kubernetes-based apps into the enterprise. We look at what it means to be enterprise software in a SaaS world, and we also get some 2021 predictions…

A secure container runtime with CRI/OCI interface. Contribute to QuarkContainer/Quark development by creating an account on GitHub.

Announcing Alpha OpenTelemetry access logging support in Envoy

Prometheus, a Cloud Native Computing Foundation project, is a systems and service monitoring system. It collects metrics from configured targets at given intervals, evaluates rule expressions, displays the results, and can trigger alerts when specified conditions…

Applications built on microservices can be scaled in multiple ways. For example we can also scale them up for better performance.