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BUILDING A LINUX-BASED VPN SERVER USING POINT TO POINT TUNNELING PROTOCOL (PPTP) Aqilla Fadia Haya; Hafizh Al Karim; Muhammad Rizky Perdana; Ahmad Nur Ihsan Purwanto; Mutiara Persada Pulungane
Jurnal ilmiah Sistem Informasi dan Ilmu Komputer Vol. 1 No. 2 (2021): Juli : Jurnal ilmiah Sistem Informasi dan Ilmu Komputer
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/juisik.v1i2.316

Abstract

Virtual Private Network (VPN) technology has an important role in today's world of communication, VPNs are able to create local networks using facilities. Because a corporate VPN can make connecting information easy and secure. But nowadays, VPNs are gaining popularity for personal use due to the increasing number of interactions that require users to surf the web. On a VPN system that uses the Point to Point Tunneling Tradition (PPTP) method that we created, we use a server from Linux that will connect to Windows as a user. So that clients or windows can connect to the web using a VPN server from linux.
EXPERT SYSTEM FOR DIAGNOSING TOMATO PESTS AND DISEASES USING FORWARD CHAINING METHOD Aqilla Fadia Haya; Hafizh Al Karim; Muhammad Rizky Perdana; Andika Sundawijaya
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 1 No. 2 (2022): Oktober : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (695.389 KB) | DOI: 10.55606/jurritek.v1i2.595

Abstract

Tomato (solanum lyco persicum) is a plant from the solanceae family, native to Central and South America, from Mexico and Peru. Tomatoes have a short life cycle and a height ranging from 1 to 3 meters. Currently, farmers often experience disturbances from pests and diseases of tomatoes due to a lack of knowledge. They do not know how to control it and to eliminate pests that reduce productivity. In identifying diseases in tomato plants we use the Forward Chaining method which is a description that starts from knowing the facts and then matching them with IF and IF-THEN rules. Diseases with a high prevalence in tomatoes are: fruit worms, earthworms, green aphids, white flies, fruit flies (bractrotera) and the diseases are: fusarium wilt, leaf spot disease, bacterial spot, fruit rot. This expert system application provides tomato disease information and disease diagnosis, including control solutions that can be used to reduce the risk of tomato crop damage
PENGARUH WAKTU DAN SUHU PADA SINTESIS ALUMINIUM FORMAT METAL ORGANIC FRAMEWORK MENGGUNAKAN METODE SOLVOTHERMAL: Indonesia Aqilla Fadia Haya; Arifin, Zainal; Fitriyana, Fitriyana
Journal of Research and Education Chemistry Vol. 7 No. 2 (2025): Oktober
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jrec.2025.vol7(2).21550

Abstract

Beverage cans are generally made of aluminum alloy and recyclable tin steel. Synthesis of aluminum formate metal organic framework (ALF-MOF) from waste cans, which has the potential to produce functional materials for gas storage, catalysis, and gas absorption applications. The solvothermal process involves the reaction between aluminum precursor solution from used beverage cans with organic ligands and solvents. This study aims to determine the effect of reaction time and temperature on the synthesis of ALF-MOF by solvothermal method. The research began by dissolving aluminum metal in beverage cans with NaOH and HCl to produce aluminum hydroxide. Then the synthesis of ALF-MOF was carried out following a one factor at a time (OFAT) experimental design with one variable. Aluminum hydroxide and formic acid were mixed with a mole ratio of 1:3. Next, ethanol-water solvent 1:1 was added as much as 30 mL. The mixture was reacted in an autoclave reactor with reaction time variations of 30, 60, 120, 360, 420 minutes and temperature variations of 80, 90, 100, 110, 120℃. Furthermore, the yield of ALF-MOF product was calculated and analyzed with FTIR instrument to determine the characteristics of its functional groups. The results showed that the optimal time was 360 minutes with a yield of 23.04%, while the best temperature was 100°C with a yield of 23.01%. FTIR analysis identified Al-O-Al groups at wave numbers 1089-1092 cm-¹, indicating the success of ALF-MOF synthesis.