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All Journal Jurasik (Jurnal Riset Sistem Informasi dan Teknik Informatika) Kesatria : Jurnal Penerapan Sistem Informasi (Komputer dan Manajemen)
Dodi Siregar
Universitas Harapan Medan, Indonesia
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management

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Manajemen Pencegahan Serangan Jaringan Wireless Dari Serangan Man In The Middle Attack Tengku Mohd Diansyah; Ilham Faisal; Dodi Siregar
Kesatria : Jurnal Penerapan Sistem Informasi (Komputer dan Manajemen) Vol 4, No 1 (2023): Edisi Januari
Publisher : LPPM STIKOM Tunas Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/kesatria.v4i1.134

Abstract

Currently, wireless networks are very widely used to communicate because wireless networks are very fast and communicate without using cables, by using this wireless it turns out that there are weaknesses or security gaps due to irresponsible people illegally such as looking for backdoor gaps to infiltrate and attack aspects of authenticity. If a crime occurs, how to prevent the crime or attack. In this article, the possibility of an attack with the type of attack carried out is a man in the middle attack from this attack experiment will be carried out 5 times the attack experiment in this experiment the calculation of QoS (Quality of Service) is carried out, namely calculating how much packet loss and the results obtained in this attack experiment with the calculation of packet loss as much as 0.291% loss, attack 1 model 2 with packet loss 0.173%, attack 2 model 2 with packet loss which means this attack successfully attacks wireless communication. To prevent this attack activity, first know the technique of how the attack runs on a wireless network, using ettercap on linux times.
Penerapan Metode Least Square Dalam Memprediksi Penjualan Mie Instan Dodi Siregar; Fikri Dio Irwanda; Haida Dafitri
Jurasik (Jurnal Riset Sistem Informasi dan Teknik Informatika) Vol 8, No 2 (2023): Edisi Agustus
Publisher : STIKOM Tunas Bangsa Pematangsiantar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/jurasik.v8i2.708

Abstract

Instant noodles are a food product made from wheat flour or wheat flour with or without the addition of other permitted food ingredients and additives. Instant noodles are popular because they taste delicious, are a practical way to cook and also have an affordable price. Instant noodles are one of the products that are often sold at Elvi stores. In fact, sales of instant noodle products at Elvi stores are erratic. This is because instant noodles are often an alternative food when people are reluctant to cook. The problem with Elvi's shop is that it cannot determine the stock of instant noodles to store which will then be sold more to the public. To minimize losses and maximize profits, a prediction system for instant noodle sales in the coming months is needed. The method used is the Least Square method which is processed based on sales trends. Based on the instant noodle prediction results using the Least Square method on sales data for the period January 2022 to August 2022, the prediction results achieved the highest accuracy of 99% and the lowest accuracy of 85%.
Co-Authors Fikri Dio Irwanda Haida Dafitri Ilham Faisal Tengku Mohd Diansyah, Tengku Mohd