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All Journal Sinkron : Jurnal dan Penelitian Teknik Informatika Jurnal Informatika Universitas Pamulang ALGORITMA : JURNAL ILMU KOMPUTER DAN INFORMATIKA JiTEKH (Jurnal Ilmiah Teknologi Harapan) Bulletin of Computer Science Research Journal of Informatics Management and Information Technology Prosiding Snastikom Hello World Blend Sains Jurnal Teknik Prioritas : Jurnal Pengabdian Kepada Masyarakat
Liza, Risko
Unknown Affiliation
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mechanical Engineering

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Cloud Computing Analysis of Hybrid Networks on Raspberry Liza, Risko; Fitriana, Liza; Junaidi, Junaidi; Siddiq, Daffa Maulana
Sinkron : jurnal dan penelitian teknik informatika Vol. 7 No. 4 (2023): Article Research Volume 7 Issue 4, October 2023
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/sinkron.v8i4.13096

Abstract

There are already a lot of cloud services on the internet which provide services, some of them even provide free facilities, but they are still limited in usage and capacity. Capacity is calculated based on saved files, temporary files, and even trash files. Moreover, data security cannot be guaranteed because the hardware is not properly set or owned by someone else. The cloud used cannot guarantee the connection and the bandwidth. The stigma of building cloud computing revolves around huge costs, not limited to operational and maintenance costs, nor the proper location for the cloud network equipment. As an effort to build data storage with large capacity, bandwidth regulation, and data protection, which is located in a private location, building a cloud computing service system which is efficient in time, cost, and place, and has good performance is no longer an impossible thing to do. With the help of Microcontroller technology, Raspberry Pi, a Cloud Computing with a Hybrid network could be built to reduce cost, time and space for the system. With the NextCloud application embedded into the cloud computing server, performance can be improved, including easy data synchronization that will flawlessly operate as a Client Server on a wide variety of today’s devices with examples being PCs, Tablets, Notebooks or Smartphones.
Penggunaan Set top box Bekas untuk Dimanfaatkan sebagai Cloud Server Ardiansyah, Muhammad Fahri; Diansyah, Tengku Mohd; Liza, Risko
Blend Sains Jurnal Teknik Vol. 1 No. 2 (2022): Edisi Oktober
Publisher : Ilmu Bersama Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (417.247 KB) | DOI: 10.56211/blendsains.v1i2.115

Abstract

The utilization of data storage media is currently very necessary to support the progress process in the digital era as it is today. One of the hardware needed to build personal data storage is HDD. But there are times when users need extra storage space using the internet or using the cloud. However, not all users can afford to rent or build an adequate server for securing personal data storage. Not all users need a server infrastructure that has high specifications to meet their needs. set top box is a device in the single-board computer category that is widely circulated in Indonesia. Set top box devices can be obtained at an affordable price, but can be a server. This research develops data storage based on a samba server application on a set top box device. Testing was done to change the default set top box operating system to the Linux operating system, the results showed that used set top box devices can be used as mini servers, the results of all the tests carried out obtained a result, namely a comparison of RAM and storage usage between the Pulpstone operating system and the system. armbian Linux operation has an increase in total RAM usage. Armbian Linux is greater than Pulpstone RAM usage which has an increase of 7.4% of the total RAM usage of the Pulpstone operating system, and data storage of the armbian Linux operating system has an increase of 74.4% from the data storage of the Pulsptone operating system, so Operating system changes can affect the total usage of RAM and data storage on the operating system used on the set top box device.
Pelatihan Cara Cepat Installasi Sistem Operasi dengan Menggunakan Metode Kloning pada Seluruh Komputer SMAN 1 Delitua Liza, Risko; Siddiq, Daffa Maulana; Ramli, Ramli; Ginting, Budi
Prioritas: Jurnal Pengabdian Kepada Masyarakat Vol. 7 No. 01 (2025): EDISI MARET 2025
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/prioritas.v7i01.989

Abstract

Pengembangan kinerja management administrasi di sekolah juga perlu ditingkatkan bahkan sampai kepada performansi pendidikan pada tenaga pengajar sampai kepada para siswa-siswinya. Yang menjadi kendala lambatnya proses administrasi bahkan sistem pembelajaran kepada para siswa dan siswi disekolah. Umumnya Teknisi yang di panggil oleh sekolah hadir pada waktu lumayan lama bahkan sampai kepada penginstallan dan konfigurasi yang lumayan repot, sementara kebutuhan akan penggunaan perangkat komputer tersebut sangat tinggi. Setiap bagian kerja manajemen mempunyai konfigurasi masing-masing. Dengan mengikuti model standar maka penyelesaian bisa membutuhkan waktu lama. Pada hasil dan pembahasan akan dipaparkan bagaimana installasi Sistem Operasi komputer dilakukan dalam waktu lebih efisien dan tepat guna. Disini dibagi atas beberapa bagian utama, diantaranya: bagian manajemen bagian Kepala Sekolah dan administrasinya, guru serta laboratorium komputer. Dalam hal peningkatan kerja optimal teknisi disekolah akan menggunakan metode pengkopian seluruh kode pada sistem operasi bahkan seluruh partisinya. Tujuan dari pelatihan ini adalah untuk memberikan pengetahuan kepada sekolah khususnya pihak teknisi internal atau bagian kerja komputer disekolah bertugas menduplikasi guna mengantisipasi permasalahan pada komputer disaat tingginya kebutuhan penggunaan komputer. Hal ini juga diharapkan dapat mengantisipasi terbuangnya waktu dalam installasi sistem operasi perangkat komputer dan efisiensi biaya.
Analisis Keamanan Jaringan WAN Dengan Teknik Standart ACL dan Extended AC Liza, Risko; Wulan, Nur
SNASTIKOM Vol. 2 No. 1 (2023): SEMINAR NASIONAL TEKNOLOGI INFORMASI & KOMUNIKASI (SNASTIKOM) 2023
Publisher : Unit Pengelola Jurnal Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (485.558 KB)

Abstract

Access Control List (ACL) digunakan sebagai kontrol keamanan jaringan WAN fungsi dari ACL dalam penulisan ini adalah untuk mengatur hak akses dan menyaring lalu lintas data di suatu jaringan dengan mengontrol paketpaket. Karena banyak perusahaan atau kantor-kantor memiliki server sendiri untuk mengolah dan sebagai penyimpanan data perusahaan, dimana perusahaan-perusahaan sekarang mengunakan WAN (Wide Area Network), Jaringan WAN berfungsi untuk menghubungkan komunikasi antar cabang kecabang lainnya tetapi, Pada penulisan ini ACL memiliki 2 (dua) buah teknik yaitu teknik Standart ACL dan Extented ACL yang berfungsi untuk menjaga dan mengatur lalu lintas komunikasi yang padat dalam sebuah jaringan WAN. Karena dalam teknik Standart ACL dam Extended ACL memilik hak akses yang berbeda
Pemanfaatan Algoritma K-Means Clustering Pada Sistem Rental Mobil Maesaroh, Sri Wulandari; Diansyah, T M; Liza, Risko; Lubis, Yessi Fitri Annisah
Bulletin of Computer Science Research Vol. 5 No. 3 (2025): April 2025
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/bulletincsr.v5i3.494

Abstract

This research utilizes the K-Means clustering algorithm to analyze car rental data from PT. Station Armada Indonesia, aiming to simplify customer car selection and improve the company's market responsiveness. The study addresses the problem of customer confusion stemming from the wide variety of car types offered by the company. By employing K-Means clustering on August 2023 rental data, the research groups cars based on rental price and mileage. The dataset, initially encompassing four car categories (Minibus MVP, SUV, City Car, and Van/Bus), was further detailed to include individual car models. Three parameters—rental duration, rental price, and mileage—were used for clustering. The K-Means algorithm, chosen for its ease of implementation and speed, was applied iteratively using Euclidean distance to assign data points to the nearest centroid. The study initially defined two clusters. Manual calculations, detailed in the paper, demonstrate the clustering process. These manual results were then compared against results obtained using RapidMiner Studio version 10.1, showcasing the software's efficiency in handling the K-Means process. The RapidMiner output included Data, Statistics, and Annotations views, providing a comprehensive analysis of the clusters. The final clustering, achieved after three iterations, revealed two distinct clusters: one representing less popular car types (Cluster 0), and the other representing the most popular car types (Cluster 1). Cluster 0 contained six car types with average customer mileage ranging from 673 km to 2050 km, while Cluster 1 included 24 car types with average mileage between 270 km and 3388 km. The findings enable PT. Station Armada Indonesia to optimize fleet management and marketing strategies by focusing on the most in-demand car types. The study concludes that K-Means clustering, implemented via RapidMiner, offers a valuable tool for enhancing customer understanding of car selection and improving the company's overall efficiency.
ANALISIS PERBANDINGAN MANAJEMEN KONFIGURASI MENGGUNAKAN ANSIBLE DAN SHELL SCRIPT PADA CLOUD SERVER DEPLOYMENT AWS: Array Alfiandi, Tedi; Diansyah, T. M.; Liza, Risko
JiTEKH Vol. 8 No. 2 (2020): September 2020
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v8i2.308

Abstract

Utilization of cloud computing technology in the development of a website has significant developments such as the use of disk storage, memory, and CPUs running in the cloud at a low cost when compared to physical servers. When creates a website, human interaction in carrying out the deployment process such as creating a database and installing the packages needed by the website, all of this is done manually so it takes a lot of time. An automation process is needed to solve this problem by using ansible and shell scripts in the website deployment process. This final project will compare ansible and shell scripts as configuration management for drupal deployments to the Amazon web service EC2 server by analyzing the deployment process time, CPU and memory usage on the server, throughput, and packet loss. Based on tests that shell scripts have performed outperformed ansible at deployment time with a difference of 3 minutes, troughput generated in ansible testing is better with an average of 60,164 Kb/s and 22,009 Kb/s for shell scripts, and ansible usage against the CPU is much better because it does not make the server overloaded.
Analisis Routing Loop dalam Open Shortest Path First (OSPF) Routing Menggunakan Teknik Spanning Tree di Jaringan Multi Area Aulia, Rachmat; Liza, Risko; Dafitri, Haida
Hello World Jurnal Ilmu Komputer Vol. 2 No. 4 (2024): Edisi Januari
Publisher : Ilmu Bersama Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56211/helloworld.v2i4.419

Abstract

Konektivitas jaringan merupakan hal mendasar yang harus diterapkan dalam suatu instansi atau perusahaan, dengan tujuan untuk memudahkan pertukaran dan pengumpulan data. Pembahasan yang disajikan dalam penelitian ini adalah implementasi jaringan Open Shortest Path First (OSPF) dengan metode Spanning Tree Protocol untuk memelihara loop routing menggunakan Graphical Network Simulator 3 (GNS3). Definisi dari OSPF adalah protokol routing dinamis yang menggunakan algoritma link-state untuk membuat dan menghitung jalur terpendek ke semua tujuan yang diketahui. Penggunaan Routing mempunyai pengaruh dalam menentukan rute yang diambil oleh paket yang masuk dari node sumber ke node tujuan dalam jaringan. Spanning Tree Protocol (STP) berfungsi sebagai protokol untuk pengaturan koneksi dengan menggunakan algoritma spanning tree. Tujuan dari artikel ini adalah mempermudah pelaksanaan pekerjaan khususnya dalam hal pengumpulan data yang terdapat dalam sistem komunikasi yang diperlukan bagi instansi atau perusahaan.
Load Balancing untuk Lalu Lintas Tinggi pada Lingkungan Cloud Menggunakan Metode Round Robin Siregar, Dodi; Ariangga, Afrilian; Sarudin, Sarudin; Harahap, Herlina; Liza, Risko
Jurnal Informatika Universitas Pamulang Vol 9 No 2 (2024): JURNAL INFORMATIKA UNIVERSITAS PAMULANG
Publisher : Teknik Informatika Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/informatika.v9i2.42662

Abstract

The rapid development of technology has changed many aspects of the data communication process, especially in cloud computing. Cloud computing or commonly known as cloud computing is now widely used. With the increase in cloud usage, there is a significant increase in traffic and causes a load imbalance between servers in the cloud environment. To overcome load imbalance on cloud servers, this research proposes the use of load balancing with a round robin method. Load balancing divides traffic equally between servers to prevent overload and system failure. The round robin algorithm ensures fair distribution by sending requests alternately to available servers. Testing shows a significant reduction in error rates when using load balancing. As many as 30 thousand users per second, the error dropped to 42.37%, 50 thousand users per second caused an error of 66.31%, and 100 thousand users per second resulted in an error of 63.08%. This indicates increased system scalability and ability to effectively handle surges in user requests. Overall, implementing load balancing using the round robin method is able to improve system performance in handling high traffic in a cloud environment, maintain stability, and minimize the risk of failure.
Pelatihan dan Pengenalan Teknologi Additive Manufacture 3D Printing pada Proses Pencetakan Modeling Menggunakan Software CAD (Computer Aided Design): Community Service articles Husin, Junaidi Amat; Arifin, Muhammad; Liza, Risko; Ritonga, Din Aswan Amran; Sarjana, Sarjana; Yulfitra, Yulfitra
Prioritas: Jurnal Pengabdian Kepada Masyarakat Vol. 6 No. 01 (2024): EDISI MARET 2024
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/prioritas.v6i01.866

Abstract

SMK Negeri IV Medan adalah salah satu Sekolah Menengah Kejuruan yang terletak ditengah kota medan . SMK tersebut mempunyai beberapa jurusan teknik ,salah satunya adalah jurusan teknik mesin dan audio.Pada jurusan tersebut memerlukan pembelajaran tentang pengenalan teknologi ADDITIVE MANUFACTURED 3D PRINTING ,pada proses pencetakan MODELLING Menggunakan SOFTWARE CAD.Oleh sebab itu kami dari para staf pengajar fakultas teknik Program studi teknik mesin khususnya mengadakan pelatihan siswa kelas XII di SMK tersebut.Adapun yang kami latih adalah tentang bagaimana cara kerja dan proses dari Teknologi additive Manufacture 3D Printing.Dengan pelatihan ini siswa tersebut dapat memahami kemajuan teknologi yang berhubungan dengan era 4,0.Untuk memajukan siswa SMK Negeri IV,perlu ditambah sarana alat Additive Manufacture 3 D Printing
Pemanfaatan Sinyal Ekspansi Radius Berbasis Konektivitas Bluetooth Menggunakan Antenna Eksternal Pada Sistem Pengendalian Pencahayaan Williyandi, Rizky; Liza, Risko; Suriati, Suriati
Algoritma: Jurnal Ilmu Komputer dan Informatika Vol 7, No 1 (2023): April 2023
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/algoritma.v7i1.15366

Abstract

Control of the lighting system is a form of implementation of a home control system that is categorized into the form of IoT in the lamp category, this system provides convenience to homeowners, namely users to be able to control home lights using an Android smartphone. In designing the system, the author implements the switch on the lamp to be replaced by using a relay device which is controlled via a microcontroller device based on a Bluetooth connection so that it can be connected to an Android smartphone that has been configured in the lighting control program application using Bluetooth. The design is carried out using a qualitative-based development method. The results of this test provide data in the form of each type of antenna such as yagi, parabolic, and helix giving different connectivity test results in tests carried out in open spaces. Keywords: Android, Mikrokontoler, Relay, Bluetooth,Antena
Co-Authors Alfiandi, Tedi Ardiansyah, Muhammad Fahri Ariangga, Afrilian Diansyah, T M Diansyah, T. M. Diansyah, T.M Dodi Siregar Fitriana, Liza Ginting, Budi Haida Dafitri, Haida Harahap, Herlina JUNAIDI Lubis, Yessi Fitri Annisa Maesaroh, Sri Wulandari Muhammad Arifin Nur Wulan, Nur Prayoga, Eko Rachmat Aulia, Rachmat Ramli Ramli Ritonga, Din Aswan Amran Sarjana Sarjana Sarudin, Sarudin Siddiq, Daffa Maulana Suriati, Suriati Tengku Mohd Diansyah, Tengku Mohd Williyandi, Rizky Yessi Fitri Annisah Lubis Yulfitra, Yulfitra