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MySQL Query Latency Analysis: Find Slow Queries Before Users Notice

Oct 24, 2026 Mariusz Antonik Database 8 min read

MySQL query latency analysis helps teams find the statements responsible for slow pages, delayed jobs, and uneven database performance. This guide shows how to establish a baseline, use Performance Schema and the slow query log, inspect execution plans safely, and separate query problems from lock or infrastructure pressure. It also explains how to track slow query trends so gradual degradation is visible before users complain.

#database performance #infrastructure-reporting #MySQL monitoring #mysql slow queries #mysql-query-latency

Software Support Engineer Interview Prep: Linux, Python, Bash, and CI/CD Checklist

Oct 23, 2026 Mariusz Antonik Automation 10 min read

A software support engineer interview usually tests structured troubleshooting more than memorized commands. This checklist covers realistic Linux, Python, Bash, GitLab CI/CD, testing, deployment, and NFTables questions, plus a practical framework for explaining your decisions. It also shows how Linux server monitoring evidence can turn an ambiguous incident into a clear technical story.

#Bash #devops-interview #gitlab-ci #linux server monitoring #linux-troubleshooting #Python #software-support-engineer

CPU Pressure Detection on Linux: Spot Saturation Before Performance Drops

Oct 22, 2026 Mariusz Antonik Automation 8 min read

CPU pressure detection on Linux helps distinguish harmless utilization spikes from workloads that are actually waiting for processor time. This guide combines PSI, run-queue, per-CPU, process, and cgroup evidence to identify saturation early. It also shows how small teams can turn recurring samples into practical warning levels and weekly actions.

#cpu-pressure-linux #cpu-saturation #infrastructure-reporting #linux performance #server health

Linux Patch Management for Ubuntu and Oracle Linux: A Regulated-Fleet Checklist

Oct 21, 2026 Mariusz Antonik Security 10 min read

Managing patches across Ubuntu and Oracle Linux is less about finding one tool with every logo and more about proving a controlled, repeatable outcome. This checklist shows how to evaluate commercial platforms and a mirror-plus-automation approach against staged rollout, CVE evidence, rollback, support, and audit requirements. It also explains how Linux server monitoring can verify that patched systems remain healthy after each maintenance window.

#linux server monitoring #linux-patch-management #oracle-linux #patch-compliance #security-audit #ubuntu

Practical Linux Monitoring for Small Teams: A Minimal Weekly System

Oct 20, 2026 Mariusz Antonik Automation 9 min read

Practical Linux monitoring gives small teams enough evidence to spot risk without maintaining a complex observability stack. This guide builds a minimal weekly system around availability, capacity, services, logs, security, and recovery checks. It also shows how to turn command output into trends and clear actions instead of dashboard noise.

#infrastructure-reporting #lightweight linux monitoring #linux-monitoring-small-business #practical-linux-monitoring #server health

Linux Bandwidth Monitoring: A Process-Level Traffic Checklist

Oct 19, 2026 Mariusz Antonik Automation 8 min read

A bandwidth graph can confirm that a Linux server is busy, but it cannot tell you which process created the traffic or where the data went. This checklist shows how to move from interface totals to process, destination, protocol, and historical evidence without deploying a heavyweight monitoring stack. It also explains where eBPF fits, what to validate before installing a collector, and how to add bandwidth evidence to practical Linux server monitoring.

#bandwidth-monitoring #Capacity Planning #ebpf #linux server monitoring #network-traffic #small business IT

Linux Server Health Checks: A Practical Weekly Checklist

Oct 18, 2026 Mariusz Antonik Automation 8 min read

Linux server health checks help small teams find capacity, service, storage, and backup risks before users report a problem. This practical weekly checklist explains what to review, which commands provide useful evidence, and how to compare results over time. It keeps Linux monitoring focused on clear decisions instead of another noisy dashboard.

#infrastructure-reporting #lightweight linux monitoring #linux server monitoring #linux-server-health-checks #server health

Linux AD Machine Password Rotation: A Safe Cleanup Checklist

Oct 17, 2026 Mariusz Antonik Security 8 min read

A Linux computer account can show PasswordNeverExpires in Active Directory even while SSSD is successfully rotating its machine password. This checklist explains how to separate an AD attribute finding from actual keytab health, trace why the flag is still being set, and clear it safely at scale. It also shows which evidence belongs in practical Linux server monitoring so the same drift does not return unnoticed.

#active-directory #adcli #linux server monitoring #machine-password-rotation #security-compliance #sssd

Infrastructure Trend Visibility: Spot Server Risk Before It Becomes an Incident

Oct 16, 2026 Mariusz Antonik Automation 7 min read

Infrastructure trend visibility helps small teams catch slow-moving server risks before they become outages. This practical guide explains which Linux, database, storage, and backup trends deserve attention and how to compare them without dashboard fatigue. Learn how a short weekly review can turn historical monitoring data into clear, timely action.

#historical-monitoring #infrastructure trends #infrastructure-reporting #performance monitoring #server trend analysis

Unified Linux Server Monitoring: A Practical Tool Evaluation Checklist

Oct 15, 2026 Mariusz Antonik Automation 9 min read

A unified Linux monitoring tool can simplify operations, but only if it turns host data into reliable decisions instead of another noisy dashboard. This practical checklist helps developers and small business owners assess collection coverage, service health, alert quality, security, remote management, and reporting. It also explains when a focused weekly health report is more useful than expanding a real-time monitoring stack.

#infrastructure health #linux server monitoring #observability #server-management #system-monitoring #weekly-reports

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