Server Monitoring Guides & Tutorials — page 15
Practical playbooks for sysadmins, freelancers and small agencies running client servers: Linux metrics, uptime and SSL checks, cron and scheduled tasks, Docker, databases, alerting and incident response.
Articles
Cron Job Monitoring: Catch Missed, Failed and Stuck Jobs
Cron fails silently. Monitor missed runs with heartbeats, failed runs with exit codes, stuck runs with timeouts and wrong results with output checks - with scripts for cron and systemd timers.
Automated Disk Space Monitoring
Set up continuous disk space monitoring with tiered alerts. Get warned at 80%, alerted at 90%, and emergency notification at 95% before servers crash.
Domain Expiration Checks: WHOIS, Renewals and Alerts
Learn how to detect domain expiry risks, verify registrar data, reduce false alerts, and connect domain checks with uptime operations.
Domain Health Monitoring: DNS, SSL and Expiry Checks
Monitoring domain health goes beyond uptime. Learn how to track DNS, SSL expiry, and WHOIS records to prevent failures before users notice them.
Keyword Monitoring Alerts: Reduce False Positives
Learn how Monitoring Keyword guide monitoring works, which checks matter, how to avoid false alerts, and how to build reliable website and service monitoring.
Find Large Files - Quick Commands
Quick commands to find the largest files on your Linux server right now. Identify what's consuming space and decide what to delete or archive.
Multi-Location Checks: Confirm Outages From Several Regions
Learn how Monitoring Multilocation checks works, what to configure, and how to avoid false positives when verifying website availability worldwide.
Multi-Location Monitoring: Setup and Reliability
Learn how monitoring multilocation detects regional outages, verifies incidents, reduces false alerts, and improves uptime decisions for modern businesses.
Instant Downtime Notifications: Alerting Setup Guide
Learn how monitoring notified instantly works, how to reduce false alerts, and how to configure uptime, server, SSL, port, cron, and domain checks.
How to Monitor Open Ports on Linux Server
Monitor open TCP and UDP ports on Linux servers continuously. Detect unauthorized services, track port changes, maintain network security.
Port Monitoring: Check TCP Services Reliably
Learn how monitoring port checks work, where they fail, and how to configure accurate alerts, retries, locations, and response-time tracking.
Automated Service Monitoring with systemctl
Set up continuous service monitoring. Get alerted immediately when nginx, mysql, redis, or any critical service stops running unexpectedly.
What Makes a Monitoring Service Great
What separates a great monitoring service from noise? Evaluation criteria, configuration best practices, false-positive fixes, and actionable setup advice.
uptime Command & Load Average on Linux: Check and Monitor
Read the uptime command and load average correctly: uptime, /proc/uptime, /proc/loadavg, what load per CPU core means, how to spot unexpected reboots and when to alert.
How a Monitoring Tool Works: Checks, Agents and Alerts
Learn how a monitoring tool works across uptime, servers, SSL, ports, cron jobs, alerts, and verification with practical configuration guidance.
Continuous CPU Process Monitoring and Trend Analysis
Track top CPU processes over time with ps and top: baselines, trend analysis and spotting the process that slowly eats the server.
Monitor Top Memory Processes
Monitor top memory-consuming processes on Linux servers. Track RAM usage, detect memory leaks, receive alerts when processes exceed thresholds.
Real-Time Server Monitoring for Multiple Servers
A deep-dive guide to multi-server monitoring in real time, covering architecture, checks, alerts, false positives, and how to choose the right tool.
Multilocation Website Checks for Global Uptime
Expert guide to multilocation website checks. Learn to eliminate false positives, monitor global performance, and configure advanced downtime detection.
Network Bandwidth Utilization Report: How to Build One on Linux
Build a bandwidth utilization report from vnstat, sar and interface counters: daily and monthly totals, peak and 95th percentile utilization, top talkers, a ready template and what each number means.
Network Connectivity Issues on Linux: Diagnose and Fix
Fix network connectivity issues on Linux servers. Detect network problems, identify root causes, restore connectivity. Troubleshoot service unavailability.
Network Health Monitoring: Metrics, Checks and Alerts
Learn network health monitoring with practical checks, alert tuning, verification methods, and configuration advice for uptime and monitoring teams.
Network Routing Misconfiguration: Troubleshooting on Linux
Network routing misconfiguration causing connectivity issues? Quick steps to identify routing problems, fix routing configuration, and restore network connectivity.
502 Bad Gateway in Nginx or Apache: How to Fix
Troubleshooting guide for Nginx and Apache 502 Bad Gateway errors. Learn how to diagnose gateway errors, identify root causes, and fix backend connectivity issues.