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All Journal International Journal of Electrical and Computer Engineering IAES International Journal of Artificial Intelligence (IJ-AI) Seminar Nasional Aplikasi Teknologi Informasi (SNATI) TEKNIK JURNAL SISTEM INFORMASI BISNIS Bulletin of Electrical Engineering and Informatics Jurnal Teknologi Informasi dan Ilmu Komputer Seminar Nasional Informatika (SEMNASIF) JURNAL TEKNIK INFORMATIKA DAN SISTEM INFORMASI Krea-TIF: Jurnal Teknik Informatika Indonesian Journal of Computing and Modeling The IJICS (International Journal of Informatics and Computer Science) JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) Building of Informatics, Technology and Science JUKANTI (Jurnal Pendidikan Teknologi Informasi) Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) International Journal of Engineering, Technology and Natural Sciences (IJETS) Aiti: Jurnal Teknologi Informasi MEANS (Media Informasi Analisa dan Sistem) Jurasik (Jurnal Riset Sistem Informasi dan Teknik Informatika) Jurnal Teknik Informatika (JUTIF) Journal of Information Technology Ampera Jurnal Saintekom : Sains, Teknologi, Komputer dan Manajemen Jurnal Sosial dan Sains Magistrorum et Scholarium: Jurnal Pengabdian Masyarakat IT-Explore: Jurnal Penerapan Teknologi Informasi dan Komunikasi Jurnal Pendidikan Teknologi Informasi (JUKANTI) INOVTEK Polbeng - Seri Informatika JuTISI (Jurnal Teknik Informatika dan Sistem Informasi)
Wiwin Sulistyo
Universitas Kristen Satya Wacana
Agriculture, Biological Sciences & Forestry Humanities Astronomy Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Physics Other

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ANALISIS PENGARUH IPV4 DAN IPV6 PADA QUEUING MECHANISM DALAM MANAJEMEN JARINGAN Isa Mahendra Kusuma Rachman, Bhaskara; Sulistyo, Wiwin
IT Explore: Jurnal Penerapan Teknologi Informasi dan Komunikasi Vol 3 No 3 (2024): IT-Explore Oktober 2024
Publisher : Fakultas Teknologi Informasi, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/itexplore.v3i3.2024.pp359-367

Abstract

Abstrak – Dalam sebuah jaringan diperlukan sebuah alamat dalam bentuk IP Address. Penelitian ini akan membandingkan kedua versi IP yang ada yaitu IPv4 dan IPv6 pada mekanisme antrian sehingga dapat memberi gambaran apa pengaruh performa pada manajemen jaringan secara spesifik yaitu pada bandwidth, latency, dan packet loss. Mekanisme Antrian dalam jaringan merupakan proses bagaimana paket-paket data yang akan dikirim dari asal paket seperti server menuju ke klien yang meminta, metode antrian Class Based Weighted Fair Queuing (CBWFQ) merupakan metode Mekanisme antrian yang menggunakan metode Class Based Queuing untuk memilah paket data yang sudah ditentukan user seperti protokol TCP dan ICMP serta Weighted Fair Queuing sebagai penjadwal pengiriman paket data. Proses untuk melakukan analisis menggunakan Network Development Life Cycle (NDLC) yaitu melakuan analisis, desain, simulasi prototype, implementasi, monitoring, dan manajemen pada sebuah jaringan. Pada IPv4 bandwidth yang digunakan lebih tinggi daripada IPv6, tetapi IPv6 lebih konsisten pada penggunaan bandwidth.Sementara pada latency perbedaannya hampir satu milisecond dan tidak didapati terdapatnya packet loss. Penggunaan rata-rata bandwidth pada IPv4 adalah 94.315 Mbits/sec sementara pada IPv6 adalah 92.9625 Mbits/sec, rata-rata latency IPv4 adalah 11.65 milisecond sementara pada IPv6 adalah 12.4 milisecond. Penelitian ini diharapkan dapat menjadi sebuah acuan dalam transisi perubahan dari IPv4 menjadi IPv6 dalam jaringan yang telah diatur dengan Mekanisme Antrian.
PENGARUH KEAMANAN DATA, KEPERCAYAAN DAN KUALITAS WEBSITE TERHADAP KEPUTUSAN PEMBELIAN PADA TIKTOK SHOP DAN FACEBOOK MARKETPLACE PADA KOTA SALATIGA Tamba, David Egi; Sulistyo, Wiwin
JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) Vol 10, No 1 (2025)
Publisher : STKIP PGRI Tulungagung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29100/jipi.v10i1.5526

Abstract

Penelitian ini bertujuan untuk membandingkan pengaruh Keamanan Data, Kepercayaan, dan Kinerja Website terhadap Keputusan Pembelian pada platform E-Commerce TikTok Shop dan Facebook Marketplace di Kota Salatiga. Metode penelitian yang digunakan adalah penelitian kuantitatif komparatif dengan pengumpulan data dilakukan melalui survei menggunakan kuesioner terhadap 120 responden yang pernah melakukan transaksi di kedua platform tersebut. Analisis data dilakukan dengan menggunakan teknik deskriptif statistik, regresi berganda, uji t, dan uji F.Hasil penelitian menunjukkan bahwa terdapat hubungan linear antara variabel Keamanan Data, Kepercayaan, Kinerja Website, dan Keputusan Pembelian baik pada TikTok Shop maupun Facebook Marketplace. Korelasi antara variabel-variabel tersebut juga menunjukkan hubungan yang positif dan signifikan, dengan pengaruh yang lebih besar pada Facebook Marketplace dibandingkan dengan TikTok Shop. Koefisien determinasi menunjukkan bahwa faktor-faktor yang diteliti memberikan kontribusi yang lebih besar pada Keputusan Pembelian di Facebook Marketplace (74,9%) daripada TikTok Shop (51,2%). Dalam konteks uji hipotesis, variabel Keamanan Data dan Kepercayaan secara signifikan mempengaruhi Keputusan Pembelian baik pada TikTok Shop maupun Facebook Marketplace. Namun, Kinerja Website hanya berpengaruh signifikan pada Facebook Marketplace. Implikasi temuan ini adalah bahwa sementara Facebook Marketplace memiliki pengaruh yang lebih besar terhadap Keputusan Pembelian, preferensi individu dan aspek lain seperti keamanan data dan kepercayaan juga perlu dipertimbangkan dalam memilih platform E-Commerce yang sesuai.
Implementasi port knocking dinamis berbasis waktu pada router untuk pengamanan akses SSH junga, David; Sulistyo, Wiwin
IT Explore: Jurnal Penerapan Teknologi Informasi dan Komunikasi Vol 4 No 1 (2025): IT-Explore Februari 2025
Publisher : Fakultas Teknologi Informasi, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/itexplore.v4i1.2025.pp106-115

Abstract

This research proposes a time-based dynamic port knocking technique on Mikrotik routers to enhance SSH access security. The system uses an algorithm for port calculation that changes according to the server’s time, requiring a different knocking sequence for each access session. The technique involves three consecutive knocking stages, where each stage must be passed in order for SSH access to be granted. The results show that this method is effective as a two-factor authentication mechanism, limiting access only to clients who understand the port calculation algorithm. Moreover, this system helps prevent brute-force attacks more efficiently by changing the port every minute, making it more difficult for unauthorized parties to launch an attack. Therefore, this method offers a more dynamic, adaptive, and flexible SSH security solution that can effectively address modern cybersecurity threats.
Model Pemantauan Keamanan Jaringan Melalui Aplikasi Telegram Dengan Snort Natanael Christianto; Wiwin Sulistyo
Jurnal Teknik Informatika dan Sistem Informasi Vol 7 No 3 (2021): JuTISI
Publisher : Maranatha University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jutisi.v7i3.4088

Abstract

Network security is the main of the development of today's technology. The ease in accessing the internet also requires protection on users is required. The ease of accessing the internet by people can also cause the occurrence of cyber crime. Cyber crime can be done by all internet users, without exception, to earn a profit. Security monitoring system server through the app messenger Telegram can help administrators in the work because always be on standby in front of the server computer. Notice of Snort as IDS via Telegram also quicked and can be accepted anywhere. In taking action when the server something happened not too late. Target cyber crime also can attack anyone without exception. A system should be a strength, with the protection of a secure network that will be difficult to hack by hackers. The server is the main target in the conduct of cyber crime. The use of the server must maintain to secure all the data is not misused by persons who are not responsible. Each server is a system that should be an administrator as a guard on duty watching and taking action when something happens on the server. To monitor a server, an administrator should always standby in front of the server computer so as not to late take action when the server is about to happen something.
Simulasi traffic dan performa jaringan SDN menggunakan ONOS Controller dan standar TIPHON Agus, Yulius Manahil Hendrawan; Sulistyo, Wiwin
IT Explore: Jurnal Penerapan Teknologi Informasi dan Komunikasi Vol 4 No 2 (2025): IT-Explore Juni 2025
Publisher : Fakultas Teknologi Informasi, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/itexplore.v4i2.2025.pp196-210

Abstract

The increasing number of devices connected to the network and the rapid growth of data traffic have posed challenges in managing conventional networks. Traditional networks often experience inefficiencies in handling high traffic loads due to static traffic management, leading to congestion in some network paths while others remain underutilized. Software-Defined Networking (SDN) has emerged as an innovative solution by separating the control plane and data plane, enabling more flexible, centralized, and programmable network management. This study evaluates the performance of OpenFlow-based SDN using the ONOS Controller and compares it with conventional home Wi-Fi networks based on the TIPHON standard. The simulation was conducted using Virtual Machines (VMWare) and Mininet, which were connected to the ONOS Controller via the OpenFlow protocol, while the conventional network testing was performed using the Command Prompt. The testing included three data transmission scenarios: 1 host to 1 host, 2 hosts to 1 host, and 2 hosts to 2 hosts simultaneously, with measured parameters including delay and packet loss. The results indicate that in the 1 host to 1 host scenario, both SDN and conventional networks had a delay of less than 150 ms and 0% packet loss. However, in the 2 hosts to 2 hosts scenario, the conventional network experienced an increase in delay and packet loss of up to 17%, whereas SDN remained stable with a delay below 150 ms and 0% packet loss. This confirms SDN's superior efficiency in handling high network traffic through more dynamic traffic distribution. Additionally, this study confirms that SDN's centralized control allows for more adaptive traffic management, reduces congestion, and improves overall network stability. These research demonstrate SDN's efficiency in handling high traffic loads, making it a superior solution for modern network demands.
Implementasi Iptables Firewall dan Intrusion Detection System Untuk Mencegah Serangan DDoS Pada Linux Server Widianto, Theodorus Kristian; Sulistyo, Wiwin
MEANS (Media Informasi Analisa dan Sistem) Volume 6 Nomor 1
Publisher : LPPM UNIKA Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (662.655 KB) | DOI: 10.54367/means.v6i1.1231

Abstract

Security on computer networks is currently a matter that must be considered especially for internet users because many risks must be borne if this is negligent of attention. Data theft, system destruction, and so on are threats to users, especially on the server-side. DDoS is a method of attack that is quite popular and is often used to bring down servers. This method runs by consuming resources on the server computer so that it can no longer serve requests from the user side. With this problem, security is needed to prevent the DDoS attack, one of which is using iptables that has been provided by Linux. Implementing iptables can prevent or stop external DDoS attacks aimed at the server.
Model Keamanan Jaringan Menggunakan Firewall Port Blocking Sartomo, Sartomo; Sulistyo, Wiwin
Krea-TIF: Jurnal Teknik Informatika Vol 10 No 1 (2022)
Publisher : Fakultas Teknik dan Sains, Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/krea-tif.v10i1.6678

Abstract

Keamanan merupakan unsur yang sangat penting pada jaringan komputer. Hal ini dilakukan dalam upaya memberikan perlindungan pada jaringan komputer untuk mencegah ancaman-ancaman baik dari internal maupun eksternal dalam upaya mencegah pengambilan data secara paksa (tidak sah). Sistem keamanan jaringan perlu dibangun untuk mengontrol akses pada aset-aset yang penting, salah satunya data, sehingga hak akses setiap komputer maupun user perlu diatur. Metode port blocking menjadi salah satu teknik yang dapat digunakan dalam mengatur akses dari user maupun komputer. Port blocking dapat digunakan untuk mengatur hak akses jaringan pada setiap port LAN (Local Area Network). Secara spesifik pengaturan port yang berbeda dengan metode default atau static port security, port security dynamic learning dan sticky port security dapat dilakukan. Hal ini sangat berguna untuk menghalangi  akses dari pihak satu ke pihak lain untuk mencegah terjadinya pencurian data dari orang tidak dikenal maupun yang dikenal. Dari pengujian yang dilakukan diketahui bahwa penerapan firewall security port dapat melakukan aksi block pada koneksi jaringan tersebut ketika terjadi perpindahan hak akses.
Analisa Jaringan Internet dengan Quality of Service Pada Teknologi Wireless Local Area Network Prasetyo, Moh Tri Adi; Sulistyo, Wiwin
Jurasik (Jurnal Riset Sistem Informasi dan Teknik Informatika) Vol 10, No 2 (2025): Edisi Agustus
Publisher : STIKOM Tunas Bangsa Pematangsiantar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/jurasik.v10i2.929

Abstract

At present the development of technology is very rapid and has succeeded in creating new technologies, especially in the field of internet technology. The presence of internet technology has a good impact on human life. Therefore, with the existence of internet technology, everyone can connect between regions in one internet network which is quite large and there are no other regional boundaries. The internet is a combination of computers that are connected to each other with the help of cables or fiber optics, telephone lines, and satellites. PT Solo Jala Buana is an internet service provider that can be used in Indonesia, offering various internet packages with speeds ranging from 1 Mbps to 100 Mbps which can be used both wirelessly and via LAN. Service standard or Quality of Service (QoS) is the ability of a network to provide data traffic services with delay, throughput, and packet loss parameters. QoS can be used to check This research found QoS measurement results on 50 Mbps services which were analyzed by live stream, which resulted in the conclusion that the service is quite stable when used when users are busy or quiet, but improvement is still needed to achieve the desired results
MODEL SENSOR PRESSURE TRANSMITTER BERBASIS INTERNET OF THINGS UNTUK MENDETEKSI KEBOCORAN PIPA AIR Santosa, Hans Nova; Sulistyo, Wiwin
JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) Vol 10, No 3 (2025)
Publisher : STKIP PGRI Tulungagung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29100/jipi.v10i3.6491

Abstract

Di era digital saat ini, kebutuhan akan manajemen sumber daya udara yang efisien semakin mendesak, terutama untuk mendeteksi kebocoran pipa air yang sering kali sulit terdeteksi secara manual, terutama dalam jaringan pipa yang luas. Oleh karena itu, penelitian ini mengembangkan model sensor pressure transmitter berbasis Internet of Things (IoT) sebagai solusi inovatif untuk mendeteksi kebocoran pipa udara secara real-time . Sistem ini dirancang untuk mengukur tekanan udara dengan akurat dan mengirimkan data ke platform IoT melalui modul ESP8266 yang terhubung dengan jaringan WiFi. Dengan menetapkan ambang batas tekanan tertentu, sistem ini mampu mendeteksi perubahan tekanan yang signifikan yang mengindikasikan kebocoran dan secara otomatis mengirimkan notifikasi melalui Telegram kepada pengguna. Penelitian ini menggunakan metode PPDIOO, yang terdiri dari enam tahapan utama: persiapan, perencanaan, desain, implementasi, pengoperasian , dan optimalisasi . Hasil pengujian menunjukkan bahwa sensor pressure transmitter dapat mendeteksi tekanan udara dengan akurat dalam berbagai kondisi, dan integrasinya dengan ESP8266 memastikan bahwa perangkat dapat terhubung dengan jaringan WiFi secara stabil. Pengujian sistem notifikasi juga membuktikan bahwa ketika tekanan udara berada di bawah ambang batas yang telah ditentukan, sistem secara otomatis mengirimkan notifikasi "Bocor" melalui Telegram. Sistem ini tidak hanya efektif dalam mendeteksi kebocoran pipa secara real-time , tetapi juga menawarkan potensi pengembangan lebih lanjut dalam integrasi IoT dengan teknologi smarthome . 
Implementation of IP SLA and Policy-Based Routing for Failover In a Multi-Homed Network Yusak, Dysan; Sulistyo, Wiwin
INOVTEK Polbeng - Seri Informatika Vol. 10 No. 3 (2025): November
Publisher : P3M Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/g2av9m56

Abstract

In the current digital era, stable and uninterrupted internet connectivity is the backbone of modern operations, demanding high availability and reliability. A key challenge is managing the inherent single point of failure associated with a single ISP connection. This study investigates the implementation and effectiveness of IP Service Level Agreement (IP SLA) and Policy-Based Routing (PBR) on a multi-homed network to achieve automated failover optimization. A virtual testbed was constructed using EVE-NG with a Cisco IOS C7200 image, and each test scenario was replicated five times to ensure data consistency. IP SLA was configured for proactive failure detection (parameters: timeout 5000 ms, threshold 500 ms, request-data-size 100, delay up 10, delay down 5), while PBR was used for VLAN-based traffic steering. The results indicate that this solution successfully steered traffic according to policy and achieved a consistent failover switchover time of 1.07–1.09 seconds (n=5), supported by Wireshark analysis, which documented up to 100% packet loss during the transition. The failure detection time, directly correlated with the IP SLA frequency, varied from 3.96 seconds (5-second frequency) to 45.63 seconds (60-second frequency). During the transition, router CPU load remained low at 3%, indicating high resource efficiency. This research concludes that the combination of IP SLA and PBR is an effective solution for enhancing the resilience and service continuity of multi-homed networks with minimal computational overhead.
Co-Authors Achmad Sathibi Agus, Yulius Manahil Hendrawan Albertoes Pramoekti Narendra Aldy Rotinsulu Alja Aminanto Anton Hermawan Arman Novrianto Arzan Khoirul Anam Bistok Hasiholan Simanjuntak Cahyono, Ferdian Bagas Christanto, Erwien Christianto, Natanael Deni Mardiyanto Denny Purwa Widyantono Erwien Christianto Gidion Fajar Tri Krisnadi Hafizh, Afrianton Noor HENDRA SETIAWAN Hosea Adrian Pratama Isa Mahendra Kusuma Rachman, Bhaskara Julian Lirama Junior Pandari junga, David Kogoya, Waiki Elkius Krisna Budi Prastya Maulana, Andrian MHD. Reza M.I. Pulungan Milleano Jody Alfredo Natanael Christianto Prasetyo, Moh Tri Adi Prasetyo, Sri Yulianto Santosa, Hans Nova Saputra, Christian Ferry Masyu Saputra, Laufi Dian Deodo Sartomo, Sartomo Sesilia Kirana Vaniamosa Setyo Hadi Darminto Sinurat c Sri Winarso Martyas Edi Sri Yulianto Joko Prasetyo Subanar . Susatyo, Yeremia Alfa Suwah Yudianto Tamba, David Egi Tambunan, Marihot Tora Tambunan, Marihot Tora Teguh Indra Bayu Teguh Wahyono Wibowo, Gracia Sonia Lestari Widianto, Theodorus Kristian Wilopo Liem Bob Yanuar Chris Milian Yusak, Dysan