![]() Authorization Logs and Access Logs: include a list of people or bots accessing certain applications or files.Windows, Linux, and macOS all generate syslogs. It includes startup messages, system changes, unexpected shutdowns, errors and warnings, and other important processes. System Log (syslog): a record of operating system events.Server Log: a text document containing a record of activities related to a specific server in a specific period of time.Event Log: a high-level log that records information about network traffic and usage, such as login attempts, failed password attempts, and application events.Because of that, many types of logs exist, including: Nearly every component in a network generates a different type of data and each component collects that data in its own log. Implementing the methodologies such as the OODA Loop.Uncover clues around the ‘who, when, where’ of an attack.Saving time/money and reputational risks by finding potential issues before deployment.Drive a shared ownership on application development and security. ![]() Identify areas to optimize application performance.Below are some of the most common use cases by job function: Log files can provide almost every role at an organization with valuable insights. The list goes on, but the point is, almost all infrastructure that you interact with on a daily basis produces a log file. Just about everything produces some version of a log, including: For example, server logs will also include the referred webpage, http status code, bytes served, user agents, and more. ![]() However, depending on the type of log source, the file will also contain a wealth of relevant data. ![]() Event information – what was the action taken.The timestamp – the exact time at which the event logged occurred.The basic anatomy of a log file includes: That data can be transmitted in different ways and can be in both structured, semi-structured and unstructured format. Log files are a historical record of everything and anything that happens within a system, including events such as transactions, errors and intrusions. A log file is an event that took place at a certain time and might have metadata that contextualizes it. ![]()
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