
“ISP Log Management and Server Deletion Methods: Technical Guide and Application Booklet” offers an in-depth look at log management and data persistence, topics of critical importance in the cybersecurity world. This comprehensive guide, prepared by Selçuk Dikici, step-by-step explains the installation and configuration of key SIEM (Security Information and Event Management) components such as Logstash, Kibana, and Wazuh. In addition to practical applications like log analysis, correlation, SIEM alarms, and reporting, the booklet evaluates the persistence of digital traces left on Syslog, RADIUS, DPI, and database systems from a forensic computing perspective. Readers also learn why it is almost impossible to operate without leaving a trace in modern IT infrastructures and the potential legal consequences of log manipulation through this work. Covering effective log management principles and future trends, this booklet is an indispensable reference for operational continuity, security, and legal compliance.