Analysis Of Public Wireless Network Security Using VPN (Case Study At SMK IT Insan Kreatif)
Keywords:
Network Security; VPN; Wireshark; Public Wireless Networks.Abstract
This study was conducted to analyze the extent to which the use of a Virtual Private Network (VPN) can improve network security at SMK IT Insan Kreatif Tj.Morawa. The research method used was an experimental quantitative method with descriptive analysis. Data collection was carried out through direct experiments using the Wireshark application to capture network data packets in two scenarios, namely before and after the implementation of VPN. The sniffing data was analyzed to determine the type of protocol used and whether the data was encrypted or still clearly readable. The results showed that before using a VPN, important data such as login credentials on HTTP and FTP protocols could be read in plaintext, while DNS queries were also openly accessible. After using a VPN, all data was encrypted using the TLS/SSL protocol so that sensitive information was no longer visible in the Wireshark capture results. A comparison of the results of three tests showed that VPNs consistently provided better protection against data leaks
References
Adiguna, M. A., & Widagdo, B. W. (2023). Analisis Keamanan Jaringan WPA2-PSK Menggunakan Metode Penetration Testing (Studi Kasus: Router TP-Link Mercusys MW302R). Jurnal SISKOM-KB.
Afrianto, N., Candra, D. G. A., Putra, B. P., Meiditra, I., Fitriyanto, I., & Sugiantoro, B. (2024). Perancangan jaringan VPN dan keamanan data menggunakan tunneling pada laboratorium komputer UIN Sunan Kalijaga Yogyakarta. Jurnal Teknik Informatika Unis (JUTIS), 12(1), 27–35.
Al-Hemiri, A., & Al-Rubaye, S. (2022). Security Enhancement Using Virtual Private Network (VPN) in Wireless Networks. Journal of Theoretical and Applied Information Technology, 100(10), 3041–3049.
Alnemran, T. (2020). Wireless Networks: Types, Implementations, and Applications. International Journal of Engineering Research and Applications, 10(1), 23–27.
Alwhbi, I. A. (2024). Encrypted Network Traffic Analysis and Classification – A Comprehensive Survey. PMC.
Baeldung. (2023, December 5). SSL Overhead: What It Is and How to Reduce It? Baeldung.com.
Blancaflor, E. B., Castillo, E. C. P., Coretico, J. M. N., Rubiano, G. B., & Tobias, A. M. D. (2023). Philippines’ Free Wi-Fi Roll-out Project: Safe or Not? Journal of Advances in Information Technology, 14(1), 20–25.
Brown, J., Rempel, E., & Moore, S. (2020). Wireless insecurity: MITM risks in public WiFi. Cybersecurity Review,12(3), 45–60 .
Conference on Information Systems and Applied Research (CONISAR), 13(5333). doi:10.1007/s11831-021-09631
Da Costa, D. B., & Yang, H.-C. (2020). Grand Challenges in Wireless Communications. Frontiers in Communications and Networks, 1(1), 1. doi:10.3389/frcmn.2020.00001
Eluwa, A. C. (2024). Trends in Wireless Network Security. Open Access Library Journal, 11, 1–17. doi:10.4236/oalib.1111033
Firmansyah, M., Wahyudi, M., & Purnama, R. A. (2022). Analisis Performa Site to Site IP Security Virtual Private Network (VPN) Menggunakan Algoritma Enkripsi ISAKMP. Jurnal Ilmiah Komputer dan Informatika (JIKOM), 7(1), 75–82.
Gentile, A. F., Macrì, D., Greco, E., & Fazio, P. (2024). Overlay and Virtual Private Networks Security Performances Analysis with Open Source Infrastructure Deployment. Future Internet, 16(8), 283.
Gunawan, M. A., & Wardhana, S. (2021). Implementasi dan Perbandingan Keamanan PPTP dan L2TP/IPsec VPN (Virtual Private Network). Resistor, 6(1), 69–76.
Hayati, N. (2020). Pengembangan Sistem Komunikasi Nirkabel untuk Monitoring Jarak Jauh. Jurnal Teknologi Informasi dan Ilmu Komputer, 7(1), 45-52.
Hidayat, K. (2023). Analisis Keamanan dan Performansi Jaringan VPN Site-To-Site Menggunakan Protokol WireGuard dalam Menangani Serangan DDoS. Institut Teknologi Telkom Purwokerto.
Ibraheem, I. O., Kayode, S. M., & Ibrahim, N. O. (2024). Analyzing Vulnerabilities in Network Protocols Using Wireshark: A Case Study on HTTP and HTTPS. International Journal of Advanced Research in Multidisciplinary Studies (IJARMS), 4(1). Diakses dari Academia/ResearchGate.
Iman, A. N., & Sholeh, M. (2024). Analisis Keamanan Jaringan Wi-Fi di MI Inwanul Huda. Seminar Nasional Teknologi dan Komputer (TEKNOKA), 9, C-67–C-69.
Isah, A. A., Adamu, A. B., Awal, A., & Babajo, A. A. (2022). A Review of Wireless Networks: WLAN Security and Threats. Advance Journal of Science, Engineering and Technology, 7(7), 1–11.
Jackson, B. (2022, December 21). Analyzing HTTPS Performance Overhead. KeyCDN Blog.
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