Practical articles, in-depth tutorials, and architectural insights on software engineering, AI, and systems.
Learn practical engineering methodologies to identify and fix file descriptor leaks in microservices architectures exposed to heavy production traffic.
Learn how to implement network high availability with the VRRP protocol and Keepalived on commodity servers, eliminating dependence on expensive routers.
Learn why processes enter state D in Linux, ignoring termination signals, and discover practical methods to trace locked I/O and recover systems without abrupt reboots.
Learn how to configure Linux Auditd to track changes in critical system files. Discover how to detect unauthorized access and protect corporate environments against internal threats.
Learn how the Linux perf utility monitors hardware and software events to diagnose deep CPU instruction bottlenecks. Optimize mission-critical systems performance by applying real-time profiling techniques.
Understand the architectural differences between ZFS and Btrfs in handling copy-on-write and snapshots, evaluating performance trade-offs, data safety, and production use.
Learn how to harden your servers against unauthorized access by integrating the SSH protocol with multi-factor authentication using Google Authenticator and PAM modules.
Learn how to inspect network traffic and capture security threats using tcpdump combined with BPF filtering language in Linux environments.
Learn how memory ballooning enables hypervisors to reclaim idle RAM from virtual machines dynamically without crashing the guest operating system.
Learn how to build true high availability in relational databases by using Patroni to manage node state and etcd as a distributed consensus repository.
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