Implementation of User Management in a Laboratory with a Linux Primary Domain Controller

2019 ◽  
Vol 3 (2) ◽  
pp. 73-79
Author(s):  
Dhiemas Aditya Oktara ◽  
Rahmat Suhatman ◽  
Ibnu Surya
Keyword(s):  
Computer Networks ◽  
Educational Institutions ◽  
Network Technology ◽  
Memory Usage ◽  
Test Results ◽  
User Management ◽  
Storage Media ◽  
Cpu Usage

The development of network technology now allows many applications that can be done with computer networks. This can be seen from the needs of educational institutions for computer networks.  One of them is the Polytechnic Caltex Riau (PCR). The use of computers in the laboratory has not yet applied the concept of user management, so that the data stored on the computer can be accessed by more than one user which causes data to be reduced further. One way to overcome this problem is to implement a Primary Domain Controller (PDC), a server that can store and manage computer activities. Requires the client to have an account to log in to the computer and have their own storage media. From the test results obtained by the average received users log in, directory access and application by 96% and from the results of tests that have been done on average to CPU usage of 4% and memory usage by 37%. Can reduce from testing carried out to 30 users, using CPU and memory increases along with the number of clients who carry out activities and it takes a pause when logging in so that all users can access the server.

Penggunaan Virtual Machine untuk Mengoptimalkan Server pada Cloud Gaming dengan GamingAnywhere

2020 ◽  
Vol 4 (6) ◽  
pp. 1028-1035
Author(s):  
Tiko Hadi Prabowo ◽  
Sofia Naning Hertiana ◽  
Sussi Sussi
Keyword(s):  
Virtual Machine ◽  
Packet Loss ◽  
Virtual Machines ◽  
Network Technology ◽  
Memory Usage ◽  
Measurement Results ◽  
Cpu Usage ◽  
Minimum Bandwidth ◽  
Game Industry

The development of the game industry is increasingly advanced until the emergence of cloud gaming network technology. Cloud gaming allows low-spec clients to play high-spec games. An open-source cloud gaming platform is GamingAnywhere. In this study, we will implement a cloud gaming server using GamingAnywhere and combine it with a virtual machine. The virtual machines that will be used are VirtualBox and VMware. This research is aimed at providing information about resource usage on servers and clients as well as Quality of Service (QoS) and Frames Per Second (FPS) from GamingAnywhere running on virtual machines. From the results of server measurements it only takes 12-21% CPU usage, 5-7% GPU usage, and 75-77% memory usage for VirtualBox and 17-26% CPU usage, 26-35% GPU usage, and 64-65% memory usage for VMware. From the FPS measurement results obtained on the client, it has an average of more than 59 fps for the three test games when GamingAnywhere is running on VirtualBox, VMware, and without using a virtual machine. From the measurement results, to get optimal QoS in accessing games with GamingAnywhere, a minimum bandwidth of 5 Mbps is needed and the distance between the client and the router is a maximum of 7 meters. If the bandwidth is less than 5 Mbps, the system experiences a delay of ± 0.003 seconds and the packet loss is more than 10%.

scholarly journals Rancang Bangun Sistem Informasi Rekam Medis (Studi Kasus: Klinik PKU Muhammadiyah Gandrungmangu)

2021 ◽  
Vol 1 ◽  
pp. 149-156
Author(s):  
Fathan Asyhari ◽  
Aridhanyati Arifin
Keyword(s):  
Medical Record ◽  
Record Management ◽  
Test Results ◽  
Medical Record Number ◽  
Average Value ◽  
User Management ◽  
Record Data ◽  
System Input ◽  
Manual Recording ◽  
Management Reporting

Health Services at the PKU Muhammadiyah Gandrungmangu Clinic have not made much use of information technology. Documentation of patient medical records still uses a manual recording system, causing various obstacles; for example, officers often find the same medical record number and difficulties making reports. Thus, creating a medical record information system is necessary to help manage medical record data electronically. The system was developed using the prototyping method. This system has several features: medical record management, user management, reporting system, input checking feature for vital sign results, uploading feature for supporting examination results, and patient queuing system for each poly. The results of the user convenience test using the SEQ method obtained an average value of 6 and 7. The usability test results using the SUS method also got a good response from the questionnaire questions given to the respondents, which got a total score of 90.6, meaning that the system has an excellent usability level.

scholarly journals THIRTY-YEAR TRENDS IN UNIVERSITY STUDENTS’ LIFESTYLE AND QUALITY OF LIFE

2019 ◽  
Vol 98 (5) ◽  
pp. 534-539
Author(s):  
Nadezhda Yu. Valkova ◽  
E. V. Komarovskaya
Keyword(s):  
Quality Of Life ◽  
Healthy Lifestyle ◽  
Educational Institutions ◽  
Medical Institute ◽  
Test Results ◽  
Exact Test ◽  
State Medical Institute ◽  
Regular Increase ◽  
Bodies Of Water

Material and methods. Questionnaire survey for the estimation of the Quality of life was done in 796 students. 419 students of Arkhangelsk State Medical Institute were tested in 1979-1984, including 205 males and 214 females with an average age of 22.2; 203 students of higher educational institutions of Severodvinsk in 1998-2005 including 85 males and 118 females with average age of 18.7; 173 students of M.V. Lomonosov Northern (Arctic) Federal University (Arkhangelsk and Severodvinsk) including 85 males and 88 females with average age of 19.5. Meaningfulness of differences in studied indices is calculated using Fisher’s exact test. Results. The decline in quality of life and lifestyle indices (dissatisfaction with living conditions, food quality, summer holidays) in 1998-2005 is shown in comparison to 1979-1984 period; in 2014-2015 they significantly increased. Nevertheless, no more than half of the respondents (45%-34%-53%) characterize their diet as adequate and regular. Increase in adherence to healthy lifestyle in modern students is noted: relatively large amount of them regularly takes exercises (10%-13%-39%), toughens up (8%-4%-9%), swim a lot in natural bodies of water (20%-15%-23%), never consume alcohol (12% -13% -35% of males 30%-5%-30% of females). However the proportion of smoking students has increased compared to the first stage of research (57%-70%-65% of males and 6%-75%-53% of females), and the proportion of those toughening themselves up regularly doesn’t exceed 9%. An increase in the number of students with no chronic diseases is shown. More students have complaints about precardialgia while complaints about gastrointestinal dysfunction and headaches became less frequent. Majority of the students are satisfied with their lives. Almost half of the respondents noted good mood as a predominant one.

scholarly journals PENINGKATAN LAYANAN INSTANSI PENDIDIKAN MENGGUNAKAN BACKUP DATA DALAM UPAYA MEMPERMUDAH AKSES INFORMASI

2019 ◽  
Vol 7 (01) ◽  
pp. 31
Author(s):  
Martanto Martanto
Keyword(s):  
Data Storage ◽  
Local Area Network ◽  
Information Access ◽  
Local Area ◽  
Educational Institutions ◽  
Area Network ◽  
Data Backup ◽  
Storage Media ◽  
Reliable Performance ◽  
Using Data

Data is a very important need for an Education institute, one of them is SMK Persatuan Ummat Islam. Because data is an important asset that must be protected and protected by its security. For this reason, a media is needed that can store data that are important and valuable assets so that they are guaranteed security and maintenance. Data processing is connected to the local area network (LAN) of SMK Persatuan Ummat Islam. Storage media with good and reliable performance will certainly greatly assist agencies for data storage in improving information access services at educational institutions. It is very important to secure data from the server so that it is necessary to backup the data by adding software or hardware as a backup server computer. To be guaranteed the data backup process periodically requires an application that can backup data automatically from the server or client. NAS4Free is a server with a Linux-based operating system that is very specialized to handle data storage centrally, so that it becomes one of the very good solutions to be implemented, because by using one media as a center of data storage can reduce the risk of data loss or data damage. And can restore (restore) data if the computer is damaged. So that the hope can facilitate the work of educators and education staff in improving services in educational institutions using data backup in ensuring the security and maintenance of data which are important and valuable assets

scholarly journals Evaluation of the efficiency of teaching future informatics teachers in computer networks based on modeling of networks.

2021 ◽  
Vol 16 (5) ◽  
pp. 2769-2780
Author(s):  
Yermakhan Zhabayev ◽  
Esen Bidaibekov ◽  
Saltanat Sharmukhanbet ◽  
Arynova Gulnar ◽  
Shirinkyz Shekerbekova
Keyword(s):  
Computer Networks ◽  
Teaching Methods ◽  
Network Modeling ◽  
Educational Institutions ◽  
Teaching Methodology ◽  
Programming Environment ◽  
Control Groups ◽  
High Quality ◽  
Network Technologies ◽  
And Control

When organizing training in computer networks on real equipment, educational institutions face organizational, technical and material difficulties. Using network modeling, the above difficulties can be avoided in teaching future informatics teachers about computer networks. The aim of the research was to prove the effectiveness of teaching future informatics teachers to computer networks based on network modeling. The method of theoretical analysis is carried out in order to comprehensively study the state of the problem under consideration. A pedagogical experiment has been conducted for evaluating the efficiency of teaching computer networks based on modeling. The study has been organized in experimental and control groups. Mathematical statistics were used for the analysis. In the course of the study, it was found that the development and implementation of the proposed teaching methodology provides an opportunity for full and high-quality training of future informatics teachers in the field of computer networks, which allows them to solve professional problems in the design, maintenance, configuration and administration of computer networks. Keywords: programming environment; informatics teacher; network technologies; teaching methods; informatization.

scholarly journals Animations in Cross-Platform Mobile Applications: An Evaluation of Tools, Metrics and Performance

Sensors ◽  
2019 ◽  
Vol 19 (9) ◽  
pp. 2081 ◽  
Author(s):  
Andreas Biørn-Hansen ◽  
Tor-Morten Grønli ◽  
Gheorghita Ghinea
Keyword(s):  
User Interfaces ◽  
Mobile Apps ◽  
Memory Usage ◽  
Performance Profiling ◽  
App Development ◽  
Cpu Usage ◽  
Cross Platform ◽  
Platform Development ◽  
And Performance ◽  
The Impact

Along with the proliferation of high-end and performant mobile devices, we find that the inclusion of visually animated user interfaces are commonplace, but that research on their performance is scarce. Thus, for this study, eight mobile apps have been developed for scrutiny and assessment to report on the device hardware impact and penalties caused by transitions and animations, with an emphasis on apps generated using cross-platform development frameworks. The tasks we employ for animation performance measuring, are those of (i) a complex animation consisting of multiple elements, (ii) the opening sequence of a side menu navigation pattern, and (iii) a transition animation during in-app page navigation. We employ multiple performance profiling tools, and scrutinize metrics including frames per second (FPS), CPU usage, device memory usage and GPU memory usage, all to uncover the impact caused by executing transitions and animations. We uncover important differences in device hardware utilization during animations across the different cross-platform technologies employed. Additionally, Android and iOS are found to differ greatly in terms of memory consumption, CPU usage and rendered FPS, a discrepancy that is true for both the native and cross-platform apps. The findings we report are indeed factors contributing to the complexity of app development.

scholarly journals Perancangan Sistem Telemetri Deteksi Bencana Banjir Berbasis Web Server Dan Sms Gateway

2020 ◽  
Vol 10 (1) ◽  
pp. 33-40
Author(s):  
Faisal Hadi ◽  
Reza Satria Rinaldi ◽  
Rahmat Supartian
Keyword(s):  
Control System ◽  
Ultrasonic Sensor ◽  
Network Technology ◽  
Test Results ◽  
Delivery Delay ◽  
Detection Tool ◽  
Flood Detection ◽  
Delivery Accuracy ◽  
The Impact ◽  
The Web

AbstractIndonesia is one of the areas prone to disasters, especially floods. The impact of flooding can be reduced if the community is better prepared to face the coming flood. Therefore we need an early flood detection tool that can give a signal to the community through early warning so that the community can be more alert in facing flood disastersThe results of this design make two systems, the main control system and the receiving system. The main control system consists of an ultrasonic sensor, SIM800L module and NodeMCU Wi-Fi module. The receiving system consists of a SIM800L module and a siren. The results showed that the ultrasonic sensor used has a good level of accuracy with an error value <1%. The results of SMS testing have a delay until the SMS to the recipient is around 5-10 seconds. The test results also show that 4G network technology has 100% delivery accuracy and 3-4 seconds delivery delay per data. The final result shows thatthe system is able to work as desired and is able to be well connected to the web server.Keyword:Flood Disasters, SIM800L, Ultrasonic sensor, Web Servers, SMS

scholarly journals Computer Forensic Using Photorec for Secure Data Recovery Between Storage Media: a Proof of Concept

2021 ◽  
Vol 2 (4) ◽  
pp. 1189-1196
Author(s):  
I Putu Agus Eka Pratama
Keyword(s):  
Data Recovery ◽  
Test Results ◽  
End User ◽  
Storage Media ◽  
Data Formats ◽  
Secure Data ◽  
The Media ◽  
Computer Forensic ◽  
Forensic Testing ◽  
Test Scenarios

Data plays the important role, so that data recovery and data security be prioritized. Computer users often lose their data due to personal errors or by attacks. Digital forensics has one sub-field called computer forensic, which has an important role in the process of secure data recovery. USB Flashdisk as the most widely used storage media has a probability of data loss. It is necessary to do computer forensic actions, especially secure data recovery, on it so that it can restore data securely to other media while protecting it by giving privilege root. In this research, computer forensic testing the 2781 files of various data formats that were erased on a 32 GB USB flash drive using Photorec. The media for collecting data recovery results using an Intel computer, 2 GB RAM, 1.8 GHz processor, the Linux operating system Xubuntu 20.04. Testing is carried out following the test scenarios that have been designed, then observed, recorded, and analyzed. Photorec places recovery data in 6 recup_dir subdirectories. Test results and analysis of the test results show that Photorec is a reliable tool for computer forensic, especially secure data recovery because it can restore 100% of data, accompanied by privilege root for all data recovery results, so they cannot be changed and deleted by an end-user without granted access.

scholarly journals Research on digital copyright protection based on the hyperledger fabric blockchain network technology

2021 ◽  
Vol 7 ◽  
pp. e709
Author(s):  
Yanhui Liu ◽  
Jianbiao Zhang ◽  
Shupei Wu ◽  
Muhammad Salman Pathan
Keyword(s):  
Life Cycle ◽  
Copyright Protection ◽  
Network Technology ◽  
Test Results ◽  
Digital Copyright ◽  
The Past ◽  
Full Life Cycle ◽  
Blockchain Technology ◽  
Protection Systems ◽  
Digital Copyright Protection

With the recent development in network technology over a few years, digital works can be easily published online. One of the main issues in the field of digital technology is the infringement of digital works, which can seriously damage the data owners’ rights and affects the enthusiasm of the owners to create original work. Thus, more attention is required for the protection of digital copyright as it has a great impact on the development of society. Many digital copyright protection techniques were developed in the past, but still, there are many loopholes in the protection systems to be covered. The protection means are still relatively weak, timeliness is poor, infringement is frequent, a right determination is cumbersome, and the results are not ideal. Aiming at the mentioned problems, this paper proposes a protection technique, which can realize the automatic management of the complete digital rights life cycle on the blockchain using fabric's smart contract technology. The proposed system is based on blockchain technology, which leverages the distributed, tamper-proof and traceable characteristics of blockchain. The system uses smart contracts to manage the full life cycle of digital copyright. The test results show that the proposed system provides effective protection of the digital copyright system and can efficiently confirm the rights of digital copyright.

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