COMPUTER NETWORKING

Detailed explanation-1: -A log file is a computer-generated data file that contains information about usage patterns, activities, and operations within an operating system, application, server or another device. Log files show whether resources are performing properly and optimally.

Detailed explanation-2: -Log files are a historical record of everything and anything that happens within a system, including events such as transactions, errors and intrusions. That data can be transmitted in different ways and can be in both structured, semi-structured and unstructured format.

Detailed explanation-3: -Log files (also known as machine data) are important data points for security and surveillance, providing a full history of events over time. Beyond operating systems, log files are found in applications, web browsers, hardware, and even email.

Detailed explanation-4: -/var/log/syslog and /var/log/messages store all global system activity data, including startup messages. Debian-based systems like Ubuntu store this in / var/log/syslog, while Red Hat-based systems like RHEL or CentOS use /var/log/messages .

Detailed explanation-5: -Event Logs. An event log is a high-level log that records network traffic and usage data such as incorrect password attempts, login attempts, and application events. Server Logs. System Logs. Authorization and Access Logs. Change Logs. Availability Logs. Resource Logs. Threat Logs. 15-Nov-2021