Elvanisa Ayu Muhsina, Elvanisa Ayu
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Analysis of Semi Parabolic Grid Antenna 2.4 GHz for Wireless LAN Hasanah, Titin Uswatun; Arifin, Hendra Dea; Muhsina, Elvanisa Ayu; son, Sumarsono
IJID (International Journal on Informatics for Development) Vol 2, No 1 (2013): IJID May
Publisher : Universitas Islam Negeri Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (117.536 KB) | DOI: 10.14421/ijid.2013.02103

Abstract

Research on analysis Semi Parabolic Grid antenna 2.4 GHz for Wireless LAN networks motivated many ordinary people who do not understand about the use of wireless LAN technology. With this research are expected to help the public in the use of antennas and wireless networking technology Wireless LAN. This research can also be used to become reference in obtaining information about Wireless LAN antenna. This research methodology is experimental. The author made several steps of literature review studies, feasibility studies of site survey and documentation of site survey, analysis which includes analyzing the available networks and analyzes the use of the area and tower, installation, testing and implementation, evaluation, documentation and to compile the final project report book. The author also experienced some constraints in the research, such as distance between of antenna Grid with Access Point, which often have configuration error and the existence of of deficiencies found in antenna Grid that makes less link quality. There are several things that affect the quality of the signal emitted by Access Point include: distance and placement of Access Points and Grid antenna, the focal point and the point of the angle between the Grid antenna Access Point, the presence of barriers and the type of Access Point. Link budget and the fade margin is also very influential on the reliability of wireless links. Antenna Semi Parabolic Grid 2.4 GHz can be connected to the Access Point at certain distance with the signal strength is directly proportional to the distance.
Honeypot Log Analysis as a Network Security Support Widodo, Tri; Muhsina, Elvanisa Ayu; Sugiantoro, Bambang
IJID (International Journal on Informatics for Development) Vol 2, No 1 (2013): IJID May
Publisher : Universitas Islam Negeri Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (816.809 KB) | DOI: 10.14421/ijid.2013.02102

Abstract

The development of information and communication technology could not be separated from the development of computer network and interconnected network (internet). On the other side, there are people who try to access the information illegally, even try to disturb and destroy the flow of information. These people are called hacker or cracker. Because of that reason, it is needed tools to prevent this information. Those tools are like firewall, IPS (Intrusion prevention system), IDS (intrusion detection system), anti-virus, and other tools. This research does literature review by analyzing one of IDS tools that is honeypot using a method of data analyzing using secondary data from Honey net Project Research at January 7th until 29th 2003. The result published by those researchers is a DDOS attack was happen at January 18th and 19th 2003 that caused one of the computer servers with IP (internet protocol) 10.1.1.101 went down at January 19th 2003. A computer with IP 10.1.1.101 at January18th 2003 started to get over packets, that is 293 packet or 41.1% from 707 packets, but the computer had not gone down yet. However, at January 19th 2003 the computer got more packets, that was 795 packets or 58% from 1,370 packets, that cause the computer became down. The evidence was unconnected computers at January 20th 2003. Based on these analyzing we concludes that honeypot is very effective to be a supporting tool to detect a network intrusion, especially DDOS. And the addition value of honeypot implementation is a log which gives information for network administrators to know any activities on the network, both normal activities, or disadvantage activities.
Decision Support System for Major Determination in Madrasah Aliyah Qonitat, Ihda Imroatun; Muhsina, Elvanisa Ayu; Uyun, Shofwatul
IJID (International Journal on Informatics for Development) Vol 2, No 2 (2013): IJID December
Publisher : Universitas Islam Negeri Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (826.151 KB) | DOI: 10.14421/ijid.2013.02205

Abstract

During this time, process of major determination in MAN Gondangrejo is based on value, interests, and the results of psychological tests. Interest derived from questionnaires, which gathered information about student interest on a particular subject. While the results of psychological tests are only taken from the results of the largest majors, so the decision is less than the maximum. It is because the results ignore other majors. There is no consideration of class quota of each major. Therefore, to obtain the right decision, this senior high school needs a decision support system that can help the team as the decision maker to determine of students majoring in accordance with the values, interests, intelligence / IQ, personality and skills of students. Moreover, it considers also the class quota of each major. One of application logic fuzzy is support system with Fuzzy Inference System (FIS) Mamdani. There are four stages to get output in FIS Mamdani: formation of a collection of fuzzy, formation of rules, application of function of implications and rules of inferences, and defuzzyfication. The method for developing system that used in this research is waterfall method. There are 5 steps to developing system. They are required analysis of system, interface design of system, implementation of system, testing of system and maintenance of system. This system is capable to display the rank of recommendation to all students for x class based on FIS Mamdani. The ranks are sorted from the highest to the lowest recommendation and quota of majors. This system is useful to give the right determination for majoring in senior high schools. Based on the result of system testing, 100% major decision makers in MAN Gondangrejo totally agree about this decision support system. 
The Analysis of Reliability Factor’s Testing of An Academic Information System Rofiah, Habibatur; Arifin, Hendra Dea; Muhsina, Elvanisa Ayu; Mulyanto, Agus
IJID (International Journal on Informatics for Development) Vol. 5 No. 1 (2016): IJID May
Publisher : Universitas Islam Negeri (UIN) Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (738.529 KB) | DOI: 10.14421/ijid.2016.05101

Abstract

Academic information system of STMIK El Rahma College is a software which has function to make academic access activities easier. The system has no good quality yet. For example, several menus are unable to be opened.  Furthermore, the system has no error notification upon several menus. Hence testing software is necessitated to examine the reliability in operating of the system. McCall method has precision and detail which can be used to examine and assure the reliability of the academic information system of STMIK El Rahma. This research uses a testing procedure plan of software to obtain the reliability degree of the academic information system of STMIK El Rahma for SIMAK menu. The result of the reliability degree of the software is 49,29 %. It is obtained by several percentages such as 96% Accuracy, 0% Consistency, 62.96% Error Tolerance, 43,75% Modularity, and 43,75% Simplicity. The fivepercentages are divided by 5.