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All Journal Neptunus: Jurnal Ilmu Komputer dan Teknologi Informasi Jejak digital: Jurnal Ilmiah Multidisiplin
Abriel Yosua Nathanael Leksona
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Computer Science & IT Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Social Sciences Other

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Serangan Man-In-The-Middle (MITM) di Jaringan Publik: Studi dan Solusi Simulasi Serangan Password Cracking Menggunakan Hydra Rakhmadi Rahman; Abriel Yosua Nathanael Leksona; Afiqah
Jejak digital: Jurnal Ilmiah Multidisiplin Vol. 1 No. 4 (2025): JULI (Edisi Spesial)
Publisher : INDO PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63822/np7skj98

Abstract

Perkembangan teknologi yang pesat telah mendorong berbagai sektor di Indonesia bergantung pada konektivitas Internet. Namun, seiring kemajuan ini, jaringan publik seperti wi-fi rentan menghadapi ancaman keamanan siber yang semakin kompleks, terutama serangan Man-In-The-Middle (MITM) dan Password Cracking. Penelitian ini bertujuan untuk mensimulasikan serangan MITM dengan teknik ARP Spoofing menggunakan tool Ettercap serta serangan Password Cracking menggunakan Hydra dalam lingkungan virtual terkontrol, sekaligus mengusulkan solusi mitigasi yang efektif. Metode eksperimen dilakukan dengan mengkonfigurasi dua mesin virtual, yaitu Kali Linux sebagai penyerang dan Ubuntu sebagai server web. Hasil simulasi menunjukkan bahwa serangan MITM mampu mengintersep kredensial pengguna melalui koneksi HTTP dalam waktu singkat, sementara serangan brute-force dengan Hydra berhasil mengungkap kata sandi dalam durasi kurang dari satu menit. Penerapan HTTPS dengan sertifikat self-signed sebagai langkah mitigasi terbukti mampu mencegah intersepsi data, meskipun ARP spoofing tetap aktif. Penelitian ini diharapkan mampu memberikan wawasan tentang kerentanan jaringan publik dan solusi praktis untuk memperkuat keamanan sistem autentikasi. Keamanan Jaringan.
Optimasi dan Modifikasi Debian untuk Meningkatkan Kinerja Sistem Operasi Real-Time Rakhmadi Rahman; Reski Septiawan; Abriel Yosua Nathanael Leksona
Neptunus: Jurnal Ilmu Komputer Dan Teknologi Informasi Vol. 2 No. 3 (2024): Agustus : Jurnal Ilmu Komputer Dan Teknologi Informasi
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/neptunus.v2i3.280

Abstract

In today's digital era, operating systems play a crucial role in various technological devices. This paper discusses the optimization and modification of Debian, one of the most stable Linux distributions, to enhance its performance as a real-time operating system (RTOS). The primary objectives of this research are to improve the responsiveness, reliability, and stability of Debian in handling real-time tasks. The study involves modifying the kernel, adjusting scheduling settings, optimizing memory management, and integrating specific real-time software. The results of the tests show that the modified Debian provides lower and more stable task execution latency compared to the standard Debian. Tests were conducted using the cyclictest software to measure system latency and Htop to monitor CPU and memory performance. Additionally, the use of the VLC application as a real-world workload demonstrated that the optimized operating system could handle task priorities more efficiently, allocate resources as needed for real-time demands, and maintain stability under heavy workloads. This research significantly contributes to the development of Debian-based RTOS, which can be applied in fields such as industrial automation, robotics, and IoT devices. The optimizations ensure that the operating system can meet the high-performance and real-time reliability demands of these critical applications.
Co-Authors Afiqah Rakhmadi Rahman Reski Septiawan