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All Journal Jurnal Ilmiah Teknologi dan Rekayasa Jurnal Simantec Sistemasi: Jurnal Sistem Informasi Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer JITK (Jurnal Ilmu Pengetahuan dan Komputer) Justek : Jurnal Sains Dan Teknologi Jurnal Saintek Lahan Kering Jurnal Informatika Universitas Pamulang Jurnal Nasional Komputasi dan Teknologi Informasi Progresif: Jurnal Ilmiah Komputer Abdimas Universal Zonasi: Jurnal Sistem Informasi JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) BERNAS: Jurnal Pengabdian Kepada Masyarakat Bakti Cendana: Jurnal Pengabdian Masyarakat Aiti: Jurnal Teknologi Informasi Jurnal Pengabdian kepada Masyarakat Nusantara Jurnal Generic Jurnal Restikom : Riset Teknik Informatika dan Komputer Journal Social Science And Technology For Community Service HOAQ (High Education of Organization Archive Quality) : Jurnal Teknologi Informasi Journal Of Information And Technology Unimor (JITU) Jurnal Sains Teknologi dan Sistem Informasi JURNAL REKAYASA INFORMASI SWADHARMA (JRIS) Decode: Jurnal Pendidikan Teknologi Informasi Malcom: Indonesian Journal of Machine Learning and Computer Science Adopsi Teknologi dan Sistem Informasi SisInfo : Jurnal Sistem Informasi dan Informatika Majalah Ilmiah METHODA Prosiding Seminar Riset Mahasiswa Journal of Informatics and Computing JIKTEKS : Jurnal Ilmu Komputer dan Teknologi Informasi Jurnal Informasi Ilmu Komputer (JIIK)
Tey Seran, Krisantus Jumarto
Prodi Teknologi Informasi, Universitas Timor, Kefamenanu, Indonesia
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Implementasi Blueprint Untuk Optimalisasi Keamanan Jaringan Dengan Firewall Menggunakan Metode Network Development Life Cycle Ina Rai Sae; Krisantus Jumarto Tey Seran; Kristoforus Fallo
Justek : Jurnal Sains dan Teknologi Vol 8, No 3 (2025): September
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v8i3.33207

Abstract

The development of information and communication technology has become an important element in supporting all organizational activities, one of which is a religious institution such as GMIT Petra Kefamenanu. This church utilizes the internet network to support worship activities, administration, and educational services. However, the increasing needs and number of users cause slow connections and the emergence of network security risks. Based on these conditions, this study aims to design and implement an optimal and secure network infrastructure blueprint using a firewall as a network security system and a Network Development Life Cycle (NDLC) approach as a development method. This research was conducted through five NDLC stages: network requirements analysis, design, blueprint , simulation using Cisco Packet Tracer , configuration implementation with Mikrotik, and monitoring. The results of the study show that the network design based on star technology (star topology) and firewall configuration that includes DHCP, NAT, and Layer 7 Protocol features successfully increased overall security and connection efficiency. The firewall is able to limit unproductive access and prevent potential cyber threats. This implementation proves that the blueprint is designed not only for a systematic and extensive network structure, but also provides comprehensive network protection against external attacks, thus supporting more effective church services.
HYBRID DATA MINING METHODS TO SUPPORT MSME SUSTAINABILITY IN RURAL AND URBAN AREAS Krisantus Jumarto Tey Seran; Debora Chrisinta; Yasinta Oktaviana Legu Rema; Hevi Herlina Ullu; Budiman Baso
JITK (Jurnal Ilmu Pengetahuan dan Teknologi Komputer) Vol. 12 No. 1 (2026): JITK Issue August 2026
Publisher : LPPM Nusa Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33480/jitk.v12i1.8271

Abstract

This study aims to analyze the factors influencing the sustainability of MSMEs in North Central Timor Regency by utilizing the K-Mode clustering method and Naive Bayes classification. The data used includes 550 MSMEs in North Central Timor Regency, East Nusa Tenggara Province, classified based on attributes such as location, product price, financial condition, innovation, technology utilization, and sustainability. The K-Mode method was employed to group MSMEs based on categorical similarities after the data was segmented by location attributes, while the Naive Bayes method was applied to classify MSME sustainability following clustering. The results indicate that in rural areas, MSMEs tend to dominate with high product prices and good financial conditions but show low levels of innovation and technology utilization. In contrast, MSMEs in urban areas are generally more innovative and technology-driven despite facing infra-structure challenges. The application of Naive Bayes demonstrated that a data training ratio of 70:30 yielded the best accuracy. Accordingly, the resulting model can be utilized to monitor the sustainability conditions of MSMEs. This study provides insights into sustainability patterns of MSMEs in both rural and urban areas and opens opportunities for further research on external factors affecting sustainability and barriers to technology adoption in rural areas.
Sistem Pendukung Keputusan Keberlanjutan UMKM Menggunakan Algoritma ID3 di Wilayah Perbatasan RI-RDTL Krisantus Jumarto Tey Seran; Debora Chrisinta; Yasinta Oktaviana Legu Rema
Decode: Jurnal Pendidikan Teknologi Informasi Vol. 5 No. 1: MARET 2025
Publisher : Program Studi Pendidikan Teknologi Infromasi UMK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51454/decode.v5i1.946

Abstract

UMKM (Usaha Mikro, Kecil dan Menengah) merupakan salah satu sektor penggerak bagi pendapatan untuk kehidupan masyarakat mengengah ke bawah. Bagi masyarakat wilayah perbatasan RI-RDTL khususnya di Kabupaten Timor Tengah Utara (TTU), melalui UMKM dapat memperbaiki stabilitas keuangan mereka. Dalam dua tahun terkahir UMKM di wilayah ini bertumbuh dua kali lipat yakni sejumlah 10.806. Melihat pertumbuhan pesat ini, menjadi kabar baik atas dukungan yang sudah diberikan oleh negara melalui Pemeritah TTU sebagai fasilitator, regulator, dan katalisator. Sebuah UMKM yang sehat tentunya memiliki ciri-ciri yang baik jika dilihat dari segi Lokasi, Harga Produk, Kondisi Keuangan, Inovasi, dan Pemanfaatan Teknologi. Penelitian ini membangun SPK (Sistem Pendukung Keputusan) sebagai solusi dalam memberikan keputusan keberlanjutan dari satu UMKM yang dianalisis. Dalam menganalisis data, digunakan Model Decision Tree (DT) atau Pohon Keputusan. Cara kerja model DT adalah membetuk sebuah pohon mulai dari akar, cabang, dan daun. Pembangunan pohon keputusan menggunakan Algoritma ID3 yang dikenal dengan Iterative Dichotomiser 3. SPK yang dikembangankan terbukti dapat membangun Aturan Pohon Keputusan dengan 300 data training dan 20 data testing dengan hasil akurasi sebesar 80%.
Co-Authors Abi, Maria Oktavian Achmad Fariz Amsikan, Dionisius K. Anastasia Kadek Dety Lestari Banusu, Lusitania Baso, Budiman Bertha Virginia Rusae Blegur, Ernes Josias Blegur, Willem Amu Chrisinta, Debora Da Conceicao, Fedelia Da Debora Chrisinta Debora Chrisinta Dewi Kristiani Asuat Dian Grace Ludji Dionisius K. Amsikan Ernes Josias Blegur Fallo, Glorita D.R.M Fetronela Rambu Bobu Fried Markus Allung Blegur Gelu, Leonard Peter Hevi Herlina Ullu Hevi Herlina Ullu Ina Rai Sae Isto, Kristoforus Boik Tani'i Jefania Tilman Soares Knaofmone, Maria Letitia Kristoforus Fallo Lake, Delviana Leonard Peter Gellu Mammi Sarlota Bana Maneno, Regolinda Margaretha Baria Maria Gradiana Misa Maria Grestiana Sani Maria Ilona Silab Maria Selviyanti H Nahak Maria Yosefa Sena Marjeni Liana Nino Martins, Alfiana Fontes Matute, Alejandro Jr. V. Mau, Lidia Marselina Mau, Madalena Bada Mirja Hoar Moensaku, Emanuel Nababan, Darsono Nahak, Agustinus Yasvin Natalia Karmila Ketmoen nggadas, carles Nikolas Abi Nila Puspita Sari Nurliah Apryanti Oktavianus Klau Lekik Patricia Gertrudis Manek Risald Roswita R.K. Nahak Salu, Yoana Fransiska De Cantal Sari, Nila Puspita Sesfao, Yusmiati Farida severinus ponis Sisilia Novita Aryenny Taek Spanyoli Muriano Fuel Stefanus Lau Manek Taek, Sisilia Novita Aryenny Taitoh, Rosalinda Hoar Ullu, Hevi Herlina Usnaat, Sonya Oktavia Victoria Nova Naiheli Willem Amu Blegur Willem Amu Blegur Yasinta O.L Rema Yeni M Kabnani Yoseph Arianto Bana Yoseph P. K. Kelen Yoseph P. K. Kelen Yoseph Pius Kurniawan Kelen Yoseph Pius Kurniawan Kelen Yoseph Pius Kurniawan Kelen Yuliana A.T Naitkakin Yulsiani Sanam