LoggingThe Ultimate Guide

your open-source resource for understanding, analyzing, and troubleshooting system logs

curated byloggly

Windows

Windows Logging Basics

Logs are records of events that happen in your computer, either by a person or by a running process. They help you track what happened and troubleshoot problems. The most common location for logs in Windows is the Windows Event Log. It contains logs from the operating system and several applications such as SQL Server or Internet Information Server (IIS). The logs use a structured data format, making them easy...

Windows

Troubleshooting with Windows Logs

The most common reason people look at Windows logs is to troubleshoot a problem with their systems or applications. In this guide, we present common troubleshooting use cases and describe how to diagnose the root cause of the problem using events in your logs. Looking for Failed Logon Attempts Check Windows Security logs for failed logon attempts and unfamiliar access patterns. Authentication failures occur when someone or some application passes...

Windows

Centralizing Windows Logs

You can use the tools in this section to centralize your Windows Event Log from many servers or desktops. By properly administering your logs, you can track the health of your systems while keeping your log files secure, and filter their contents for finding the correct information. Why Centralize Logs? Centralizing your logs saves time and increases the reliability of your log data. When Windows log files are stored locally...

This guide will help software developers and system administrators become experts at using logs to better run their systems. This is a vendor-neutral, community effort featuring examples from a variety of solutions. Each guide includes:

  • A basic overview of what’s in the logs and where to find them
  • How to search or analyze logs to find valuable information
  • How to troubleshoot common issues and find the root cause
  • How to centralize or aggregate logs in a large distributed system

This guide will help software developers and system administrators become experts at using logs to better run their systems. This is a vendor-neutral, community effort featuring examples from a variety of solutions

Meet Our Contributors Become a contributor