Linux Services & Logs
40 services|Published: Jan 18, 2026|Updated: Jan 19, 2026
Troubleshoot Linux systems using services and logs: restarting services, reading system logs, diagnosing network/app failures, and understanding whatโs actually happening when something breaks.
All Services
๐๏ธHow to add environment variables to a systemd serviceโฐHow to analyze startup time with systemd analyze๐ก๏ธHow to check and rotate logs safely on Linux๐
How to check file descriptors usage and limits๐ปHow to create a reproducible bug report from logs๐ How to create a systemd service fileโ๏ธHow to debug a crashing application with core dumps๐คHow to diagnose container logs effectively๐ฏHow to enable a service at boot with systemctl๐ก๏ธHow to enable core dumps safely on LinuxโฐHow to filter logs by time and service๐How to find what is listening on a port on LinuxโณHow to keep logs for audits without filling disk๐
How to manage firewall rules for a service๐
How to manage log disk usage on Linux๐ฅHow to monitor a service with simple health checks๐How to read kernel logs for hardware issues๐๏ธHow to set up basic alerting from logs๐How to start stop and restart a service on Linux๐How to troubleshoot AppArmor blocks in logs๐ฆHow to troubleshoot DNS resolution issues with system logs๐How to troubleshoot SELinux denials in logs๐ชHow to troubleshoot USB device issues on Linux using logs๐How to troubleshoot WiโFi driver issues using logs๐ณ๏ธHow to troubleshoot a port already in use error๐พHow to troubleshoot a service that keeps restarting๐ก๏ธHow to troubleshoot apache not starting๐How to troubleshoot disk errors using logs๐
How to troubleshoot network manager issues๐ฅ๏ธHow to troubleshoot permissions for a Linux service๐งโ๐ผHow to troubleshoot postgres service issues๐How to troubleshoot slow disk IO using iostat basics๐๏ธHow to troubleshoot sshd not startingโฐHow to troubleshoot time sync issues with chrony or ntp๐How to troubleshoot too many open files error๐How to use dmesg to diagnose device problems๐ชHow to use log levels for better troubleshooting๐How to use ps and grep to find a process๐ฅ๏ธHow to use top and htop for quick diagnostics๐How to view service logs with journalctl