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All Journal Jurnal Teknologi Informasi dan Ilmu Komputer Panrita Abdi - Jurnal Pengabdian pada Masyarakat Journal of Information Technology and Computer Science Indonesian Journal on Software Engineering (IJSE) JFMR (Journal of Fisheries and Marine Research) SENTIA 2016 J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Jurnal Teknologi Informasi dan Terapan (J-TIT) Abdi Dosen : Jurnal Pengabdian Pada Masyarakat JAMI: Jurnal Ahli Muda Indonesia JPUA: Jurnal Perpustakaan Universitas Airlangga: Media Informasi dan Komunikasi Kepustakawanan Jurnal ELTEK Jurnal Informatika Polinema (JIP)
Erfan Rohadi
Politeknik Negeri Malang
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Library & Information Science Public Health Social Sciences Other

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SISTEM INFORMASI PERAMALAN STOK BARANG DI CV. ANNORA ASIA MENGGUNAKAN METODE DOUBLE EXPONENTIAL SMOOTHING Mansyur Mansyur; Erfan Rohadi
Jurnal Informatika Polinema Vol. 2 No. 1 (2015): Vol 2 No 1 (2015)
Publisher : UPT P2M State Polytechnic of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jip.v2i1.54

Abstract

Dalam dunia bisnis, dibutuhkan sebuah prediksi atau perkiraan dari suatu tindakan yang akan diproses untuk menindak lanjuti hasil yang akan diharapkan pada beberapa periode selanjutnya. Keberlangsungan proses produksi dalam suatu bisnis ditunjang oleh pengendalian persediaan stok barang yang baik. Peramalan merupakan satu komponen pendukung dalam aktivitas perencanaan dalam membuat suatu prediksi bisnis untuk mendapatkan keuntungan yang maksimal. Metode peramalan merupakan bentuk pengendalian persediaan kuantitatif berdasarkan data historis (runtut waktu).Tujuan dari penelitian ini adalah meramalkan jumlah Stok barang di CV.Annora Asia dengan menggunakan metode double exponential smoothing. Dengan metode ini, perhitungan dapat dilakukan untuk mencari nilai optimal yang paling baik dengan tingkat kesalahan yang paling terkecil. Dan hasil pengujian perhitungan MAPE (Mean Absolute Percentage Error) menunjukan hasil hasil yang sangat bagus karna di temukan nilai sebesar 4,82866%.
Optimizing Tourism Promotion through Interactive Virtual Tour Design: A Case Study of Batu Love Garden Meyti Eka Apriyani; Erfan Rohadi; Rosidatul Amala; Irena Putri Savira
Indonesian Journal on Software Engineering (IJSE) Vol 10, No 1 (2024): IJSE 2024 (ON PROGRESS)
Publisher : Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/ijse.v10i1.19743

Abstract

Pariwisata merupakan salah satu sektor ekonomi yang penting dan memiliki peran strategis dalam pembangunan suatu daerah. Dalam rangka mempromosikan objek wisata dan menarik minat wisatawan, dibutuhkan inovasi dalam penyajian informasi dan pengalaman wisata yang menarik dan informatif salah satu medianya adalah virtual tour. Penelitian ini bertujuan untuk merancang virtual tour pariwisata untukstudi kasus pada objek wisata Batu Love Garden di Kota Batu, Jawa Timur, Indonesia. Metode penelitian yang digunakan adalah metode penelitian kualitatif dengan tahapan pemahaman objek wisata, pengembangan konsep, perancangan virtual tour, pengujian, dan evaluasi. Pengujian yang dilakukan dalam pengembangan sistem sesuai dengan kebutuhan dari Mitra, Pengujian dilakukan untuk melihat kesesuaian masukan dengan keluaran lewat pengujian fungsional dan juga pengujian dilakukan pengguna sebanyak 30 pengguna untuk mengetahui kesesuaian proses yang ada dalam sistem dengan fakta yang ada di lapangan. Pengujian dilakukan dengan skenario pengguna melakukan operasi pada aplikasi. Diharapkan hasil penelitian ini dapat memberikan kontribusi pada pengembangan teknologi informasi danpariwisata di Indonesia, serta menjadi referensi bagi pengelola objek wisata lain dalam meningkatkan promosi dan pengalaman wisata bagi wisatawan
Study and Analysis of Docker Internal System Security From Docker Daemon Attack and DDOS on The Open Journal System Prabowo, Choirul Rio; Rohadi, Erfan; Irmanto, Dodo
JPUA: Jurnal Perpustakaan Universitas Airlangga: Media Informasi dan Komunikasi Kepustakawanan Vol. 14 No. 1 (2024): JANUARI - JUNI 2024
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jpua.v14i1.2024.61-68

Abstract

Introduction: The growing use of data centers encourages virtualization technology to become an alternative solution in virtualization to provide a dense environment that can be adjusted according to needs. In hypervisor-based virtualization technology in managing servers in the Open Journal System data center, network administrators must allocate resources that are large enough so that when developing web or mobile systems takes a long time, and in hypervisor-based virtualization techniques, they must have access to the host kernel. Purpose: Research on the attack model and vulnerabilities of the Docker internal security system on the Open Journal System from the Docker daemon attack and DDoS attacks when building and managing the Docker internal system. Method: This research begins with a literature study, network scope, system design, and system implementation based on plans that have been made, as well as testing, analysis, and concluding the tests that have been carried out. Finding: At the testing stage, the results obtained were the success of the Docker system in handling DDoS attacks and the success of securing the Docker Daemon from Docker Daemon attacks. Conclusion: The Docker Daemon Attack can occur by misconfiguring containers. This flaw allows an unauthorised party to take control of a container that has already been created. By gaining root access, attackers can perform various malicious activities within the container. Therefore, it is important to have an understanding and implementation of proper security practices in the management and configuration of Docker containers to reduce the risk of these types of attacks. Keyword:  Docker, Container, DDoS, Attack. ------------------------------------------ Studi dan Analisis Keamanan Sistem Internal Docker dari Docker Daemon Attack dan Ddos Pada Sistem Open Journal System Pendahuluan: Berkembangnya penggunaan data center ini mendorong teknologi virtualisasi menjadi salah satu alternatif solusi dalam virtualisasi untuk menyediakan lingkungan yang padat agar dapat disesuaikan sesuai kebutuhan. Pada teknologi virtualisasi berbasis hypervisor dalam pengelolaan server pada data Open Journal System, center administrator jaringan harus mengalokasikan resources yang cukup besar, sehingga ketika dilakukan development sistem web atau mobile membutuhkan waktu yang lama, serta pada teknik virtualisasi berbasis hypervisor harus memiliki akses ke kernel host. Tujuan: Meneliti model serangan dan kerentanan sistem keamanan internal Docker pada Open Journal System dari ancaman Docker Daemon Attack dan serangan DDoS pada saat membangun dan mengelola sistem internal Docker. Metode Penelitian: Penelitian ini dimulai dengan studi literatur, ruang lingkup jaringan, perancangan sistem, implementasi sistem berdasarkan rancangan yang telah dibuat, serta pengujian, analisis dan penarikan kesimpulan dari pengujian yang telah dilakukan. Hasil Penelitian: Pada tahap pengujian dilakukan hasil yang didapatkan yaitu keberhasilan sistem docker dalam menangani serangan DdoS serta keberhasilan pengamanan docker daemon dari serangan docker daemon attack. Kesimpulan: Serangan Docker Daemon dapat terjadi karena kesalahan konfigurasi container. Kelemahan ini memungkinkan pihak yang tidak berwenang untuk mengambil kendali atas container yang telah dibuat. Dengan mendapatkan akses root, penyerang dapat melakukan berbagai aktivitas berbahaya di dalam container. Oleh karena itu, penting untuk memiliki pemahaman dan penerapan praktik keamanan yang tepat dalam pengelolaan dan konfigurasi container Docker untuk mengurangi risiko jenis serangan ini. Kata Kunci: Docker, Container, DDoS, Attack.
Integrasi Sistem Informasi Geografis dan Sistem Informasi Manajemen Keanggotaan untuk Meningkatkan Aksesibilitas Layanan Kesehatan pada Ikatan Dokter Indonesia (IDI) Cabang Malang Raya Rozi, Imam Fahrur; Ariyanto, Rudy; Arianto, Rakhmat; Hapsari, Ratih Indri; Ananta, Ahmadi Yuli; Rohadi, Erfan; Widito, Sasmojo; Zakaria, Arief Syukron; Budiarti, Arry; Saputra, Zainal Ulu Prima; Irawan, Ferry Buyung Bakhtiar; Sholiha, Afifah
J-Dinamika : Jurnal Pengabdian Masyarakat Vol 10 No 1 (2025): April
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Indonesian Medical Association (IDI) Chapter Malang Raya, which covers area of Malang City, Batu City, and Malang Regency, faces challenges in managing doctor membership data and presenting information related to customer services and public services. To overcome these obstacles, a website-based information system was developed that integrates the Membership Management Information System with the Geographic Information System (GIS). The Membership Management Information System facilitates efficient management data of physician member of IDI chapter Malang Raya, including status of membership, competence of medical doctors, speciality, and subspeciality. Whereas GIS system serves to map the location of doctor practices. Integration these two systems making it easier for people to find the nearest health services. The system was developed using the waterfall methodology, which involves the stages of requirements analysis, design, implementation, testing and maintenance. The result is a platform that can improve IDI's internal efficiency and make it easier for people to access health services. This system has the potential to be further developed with the addition of security features and functionality such as real-time monitoring and mobile application integration, thus supporting more responsive and integrated health services
Study and Analysis of Network Topology Performance Using Wireless Distribution System Technology Rahmat, Mohammad Faried; Rohadi, Erfan; Siradjuddin, Indrazno; Chrissandy, Farif
Journal of Information Technology and Computer Science Vol. 6 No. 2: August 2021
Publisher : Faculty of Computer Science (FILKOM) Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (705.559 KB) | DOI: 10.25126/jitecs.202162276

Abstract

The use of wireless networks has become a trend at this time. However, this can cause several problems in the use of this technology. One of the problems arising from this technology is the limited signal coverage in a certain place. To solve these problems, WDS technology is an alternative solution that can be done. WDS technology will be applied to each room. In this study, QOS analysis will be used to evaluate throughput performance and response time. The test scenario is performed with 1000 users (simulated) for seven days, four sampling times considering working hours and outside working hours. The analysis results show that with WDS technology, the resulting performance tends to be more stable with a throughput value of 500 KBps and a max response time of 5.5 ms.
VARIASI KOMUNITAS PLANKTON DAN PARAMETER OSEANOGRAFI DI DAERAH PENANGKAPAN IKAN PELAGIS DI PERAIRAN MALANG SELATAN, JAWA TIMUR Sartimbul, Aida; Yona, Defri; Larasati, Ardelia Annisa; Saria, Syarifah Julinda; Rohadi, Erfan
JFMR (Journal of Fisheries and Marine Research) Vol. 1 No. 2 (2017): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2017.001.02.2

Abstract

AbstractPerairan Malang Selatan merupakan daerah yang potensial sebagai daerah penangkapan ikan. Keberadaan berbagai jenis ikan pelagis kecil terutama ikan planktivor secara langsung dipengaruhi oleh pertumbuhan fitoplankton dan zooplankton. Fitoplankton mempunyai peran penting sebagai dasar rantai makanan dalam ekosistem perairan, sedangkan zooplankton merupakan herbivor pemangsanya. Pertumbuhan fitoplankton dan zooplankton dipengaruhi oleh faktor oseanografinya. Penelitian ini bertujuan untuk mengetahui variasi komunitas plankton dan hubungannya dengan parameter oseanografinya, serta distribusi spasial plankton di daerah penangkapan ikan di Perairan Malang Selatan, Jawa Timur. Metode purposive sampling dengan teknik zigzag pada 10 titik sampling digunakan dalam pengambilan data pada penelitian ini. Sedwicgk rafter counting cell digunakan dalam metode penghitungan plankton. Sampel plankton diambil secara horizontal dan vertikal pada kedalaman 1 dan 15 m dengan jaring plankton bermata jaring 20 µm, sedangkan parameter oseanografi secara in situ diukur menggunakan aqua quality sensor tipe AAQ 1183 C. Hasil penelitian menunjukkan bahwa kelimpahan fitoplankton sebesar 49.764 sel/m3, didominasi oleh genus Chaetoceros. (Bacillariophyceae), dan kelimpahan zooplankton sebesar 894 ind/m3, didominasi oleh genus Nauplius. (Copepoda). Indeks keanekaragaman dan keseragaman fitoplankton dan zooplankton dapat dikategorikan sedang, berturut-turut sebesar 1,77–1,85 dan 1,70–1,77; 0,58–0,59 dan 0,77–0,79, sedangkan indeks dominansinya masuk dalam kategori rendah yaitu berturut-turut 0,27–0,28 dan 0,24–0,27. Analisis Principal Component Analysis (PCA) menunjukkan bahwa parameter oseanografi utama yang paling berpengaruh pada variasi komunitas plankton adalah turbiditas, klorofil-a, oksigen terlarut dan fosfat. Hasil uji T menunjukkan bahwa distribusi spasial kelimpahan fitoplankton dan zooplankton pada kedalaman 1 m dan 15 m berbeda nyata. Studi ini memberikan informasi penting tentang kelimpahan plankton dan faktor oseanografi yang berpengaruh di daerah penangkapan di Perairan Malang Selatan. Kata Kunci: komunitas plankton, parameter oseanografi, fishing ground, Perairan Malang Selatan AbstractThe South Malang water is a potential area as a fishing ground. The existence of various species of small pelagic fishes such as planktivores fishes are directly influenced by the growth of phytoplankton and zooplankton. Phytoplankton has an important role as the basis of the food chain in aquatic ecosystems, whereas zooplankton is its predator. The growth of phytoplankton and zooplankton is influenced by oceanography factors. This study aims to determine the variation of the plankton community and its relationship with oceanographic parameters, as well as the spatial distribution of plankton in the fishing ground at South Malang water. The purposive sampling method with zigzag technique at 10 sampling sites was used in data collection in this research. Sedwicgk rafter counting cells were used in plankton counting methods. The plankton samples were taken horizontally and vertically at depths of 1 and 15 m with a 20 μm planktonnet, while in situ oceanographic parameters were measured using aqua quality sensor AAQ type 1183 C. The results showed that phytoplankton abundance was 49.764 cells / m3, dominated by the genus Chaetoceros (Bacillariophyceae), and zooplankton abundance of 894 ind / m3, dominated by the genus Nauplius (Copepoda). The diversity index and uniformity index of phytoplankton and zooplankton could be categorized as the middle as 1.77-1.85 and 1.70-1.77; 0.58-0.59 and 0.77-0.79, respectively, while the dominance index was included in the low category that was 0.27-0.28 and 0.24-0,27, respectively. Principal Component Analysis (PCA) analysis showed that the most important major oceanographic parameters for plankton community variation were turbidity, chlorophyll-a, dissolved oxygen and phosphate. T test results show that the spatial distribution of phytoplankton abundance and zooplankton at depth of 1 m and 15 m are significantly different. This study provides important information on the plankton abundance and oceanography factors affected at fishing ground of South Malang water. Keywords: Plankton community, oceanography parameters, fishing ground, South Malang Water
STRUKTUR KOMUNITAS FITOPLANKTON PADA PERAIRAN MAYANGAN PROBOLINGGO, JAWA TIMUR Sartimbul, Aida; Ginting, Felixtha Robertus; Pratiwi, Dwi Candra; Rohadi, Erfan; Muslihah, Nurul; Aliviyanti, Dian
JFMR (Journal of Fisheries and Marine Research) Vol. 5 No. 1 (2021): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2021.005.01.20

Abstract

The waters of Mayangan, Probolinggo are waters that have ports with the status of the Coastal Fisheries Port (PPP). The existence of PPP Mayangan, Probolinggo can negatively influence the quality of the water in these waters. Phytoplankton as a primary producer in a waters very much depends on water quality fluctuations that occur in aquatic ecosystems. The role of phytoplankton as a bioindicator gives an idea of the condition of the water quality contained in a waters. This study aims to determine the structure of the phytoplankton community as a bioindicator of water quality in the waters of Mayangan, Probolinggo. Phytoplankton sampling and water quality were conducted in situ. Depth of data was obtained through the National Batimetri website, Geospatial Information Agency (BATNAS BIG). Phytoplankton samples were taken by horizontal method, water quality samples were also taken by repetition 3 times. Data analysis using Pearson Correlation analysis with the help of SPSS 16.0 application. The results showed the average value of air quality in the waters of Mayangan, Probolinggo was 36.76 ° C, pH 7.19, salinity 33.5 ppt, brightness 6.48 m, nitrate 0.023 mg / l, phosphate 0.022 mg / l , and a depth of 5.26 m. The most commonly found phytoplankton are Chaetoceros and Skeletonema in which both genera are included in Harmful Alga Bloom (HAB). Based on the correlation analysis test, water transparancy was positively correlated with the abundance of phytoplankton in the waters of Mayangan, Probolinggo. 
Co-Authors Aida Sartimbul Aliviyanti, Dian Amalia Amellia Kurniaty Ananta, Ahmadi Yuli Anastasia Merry Christine Ardelia Annisa Larasati Ardelia Annisa Larasati, Ardelia Annisa Arief Prasetyo Arief Prasetyo Arief Prasetyo Astiningrum, Mungki Awan Setiawan Bobby Risaldo Agung Putra Budiarti, Arry Chrissandy, Farif Defri Yona Dian Aulia Fitri Dodik Widya Adhitama Dodo Irmanto Dwi Candra Pratiwi Ekojono Ekojono Ekojono Ekojono Ekojono Ekojono, Ekojono Erlangga Adha Widyatama Faza, Sabilah Felixtha Robertus Ginting Fitri, Dian Aulia Ginting, Felixtha Robertus Hapsari, Ratih Indri Hendra Pradibta Ika Dyah Rahmawati Ilham Agung Wicaksono Imam Fahrur Rozi Indrazno Siradjuddin Irawan, Ferry Buyung Bakhtiar Irena Putri Savira Kristinanti Charisma Laili, Nisa Hidayatul Mansyur Mansyur Mansyur Mansyur Mohammad Faried Rahmat Nalendra, Adimas Ketut Nisa Hidayatul Laili Nugroho, Tommy Purwantoro Nurhasan, Usman Nurindrasari, Diana Nurul Muslihah Prabowo, Choirul Rio Pratiwi, Dwi Candra Putra Prima Arhandi, Putra Prima R. Farah Dini Qoyyimah Rahmad, Cahya Rahmat, Mohammad Faried Raka Admiral Abdurrahman Rakhmat Arianto Rakhmat Arianto, Rakhmat Ratna Ika Putri Rizky Ardiansyah RIZKY ARDIANSYAH Ronilaya, Ferdian Rosa Andrie Asmara Rosidatul Amala Rudy Ariyanto Sabilah Faza Sapto Wibowo Sapto Wibowo Saputra, Zainal Ulu Prima Sholiha, Afifah Siradjuddin, Indrazno Siti Muzdalifatus Sa’adah Syarifah Julinda Saria Syarifah Julinda Saria, Syarifah Julinda Tommy Purwantoro Nugroho Widito, Sasmojo Yan Watequlis Syaifudin Zakaria, Arief Syukron