Perancangan dan Implementasi Sistem Logging Jaringan Berbasis Website dengan Fitur Multi-User Real-Time dan Deteksi

Tri Sapta Warman Zai (Universitas Negeri Medan)
Dedy Kiswanto (Universitas Negeri Medan)
Fahra Pebiana Putri (Universitas Negeri Medan)
Bob Valentino (Universitas Negeri Medan)

Jurnal Nasional Komputasi dan Teknologi Informasi
Vol 8, No 6 (2025): Desember 2025

Abstrak - Perkembangan teknologi informasi menimbulkan tantangan dalam deteksi anomali log secara real-time. Penelitian ini mengembangkan NetLog, sistem monitoring log dengan pendekatan hybrid yang menggabungkan deep learning dan deteksi berbasis aturan. Sistem menggunakan Autoencoder untuk mempelajari pola log normal dan rule-based detector sebagai fallback. Arsitektur terdiri dari backend FastAPI, frontend React/Next.js, dan modul anomaly detection. Hasil implementasi menunjukkan sistem berhasil mendeteksi 60% serangan simulasi dengan precision 100% dan recall 20%. Evaluasi komprehensif menunjukkan ROC AUC 82% dan PR AUC 86.7%, mengindikasikan kemampuan model yang baik dalam membedakan log normal dan log anomali. Dashboard real-time menampilkan log dengan latensi di bawah 2 detik. Kesimpulannya, pendekatan hybrid pada NetLog terbukti efektif memperluas cakupan deteksi anomali dibandingkan metode tunggal, meskipun masih diperlukan peningkatan sensitivitas deteksi.Kata kunci: Deteksi Anomali; Autoencoder; Deep Learning; Monitoring Log; Sistem Real-time; Abstract - The rapid advancement of information technology poses new challenges in real-time log anomaly detection. This study develops NetLog, a log monitoring system based on a hybrid approach that combines deep learning with rule-based detection. The system employs an Autoencoder to learn normal log patterns and a rule-based detector as a fallback mechanism. The architecture consists of a FastAPI backend, React/Next.js frontend, and an anomaly detection module. The implementation results show that the system successfully detected 60% of simulated attacks with 100% precision and 20% recall. A comprehensive evaluation demonstrates ROC AUC of 82% and PR AUC of 86.7%, indicating a strong ability of the model to distinguish between normal and anomalous logs. The real-time dashboard displays log data with latency below 2 seconds. In conclusion, the hybrid approach of NetLog effectively broadens anomaly detection coverage compared to single-method systems, although improvements in sensitivity are still required.Keywords: Anomaly Detection; Autoencoder; Deep Learning; Log Monitoring; Real-time System;