Implementation of File Sharing and Remote Desktop Connection (RDC) by Utilizing Local Area Network (LAN)

The paper presents the design and implementation of an experimental set of supplementary services over a conversational talk service in a local area network (LAN) environment, applying the principles of an intelligent structured network. The International Telecommunication Union (ITU) Intelligent Network Conceptual Model was applied as a formal framework. Special emphasis was put on the service functional modules, their decomposition on the different levels of abstraction, and the logic of their interconnection. The tools and models used in the detailed specification are referenced. The supporting intelligent local network application protocol was specified and a distributed software application was developed and implemented in the department's local network. Remote procedure call protocol software was used as an application programming interface.

Home and workplace networks typically safeguard against external threats but allow internal devices to communicate freely with each other. As a result, malicious code on an internal device can collect sensitive data about other devices or directly attack them. In this paper, we study mobile apps as potential sources of local network attacks, analyse their behaviour, design new defences, and evaluate and bypass existing mitigations. We first focus on Android, where apps with only the Internet permission can access all devices in the Local Area Network (LAN), meaning malicious apps can extract private LAN data, manipulate discovery protocols to obtain a Machine-in-the-Middle (MitM) position, and directly attack devices. To defend against such mobile-based attacks, we define an access model to securely differentiate between LAN and global Internet access. We implement this model on Android by creating LANShield: an app that refines Android's permission model, and can monitor and block LAN access of apps using a virtual network interface. We use LANShield to manually perform tests of 399 Android apps and find, among other observations, that 89 apps unexpectedly access the LAN, and 93 apps scan the network. In contrast to Android, iOS already separates the local and global Internet, but does so based on a proprietary LAN access model. We compare this access model to ours, and present multiple bypasses for an app to circumvent Apple's local network permission. Finally, we reported all our findings to affected vendors, and hope our work will motivate the adoption of stronger permission models on mobile devices.

The performance of a network based computing system that consists of a number of clients and a server, interconnected by a local area network, is studied. Each client represents a diskless or swapful workstation, or an X terminal, and generates application workload using either a conventional UNIX file system or the Network File System (NFS). To characterize the application workload and the effect of the protocol (login, rlogin, NFS), the user interface (workstation, X terminal) and its configuration (memory size, disk storage), a series of measurement experiments was performed in a controlled environment. During each experiment the traffic on the network and the activity on the various system resources were monitored. The measurements obtained are used to parameterize a queuing network model of the system, which is then used to project the performance of the system under various load conditions, to identify system bottlenecks, and to compare design alternatives. >

Triangulating molecular surfaces over a LAN of GPU-enabled computers

Over the years, the network storage bandwidth has increased rapidly while the node-to-node latency has not decreased much. This is because the latency is dominated by the protocol software execution time in the kernel, instead of by the raw transmission time over the link. Virtual Interface (VI) protocol has been proposed to overcome the software overhead of the TCP/IP. In this paper, we introduce another new technology vSCSI (VI-attached SCSI) to compete with iSCSI in LAN (Local Area Networks) environment, and compare performance of vSCSI and iSCSI experimentally. Meanwhile, we present a Virtual Interface Storage Architecture (VISA) as a new network storage architecture which uses vSCSI as the network communication protocol. Then, we can take advantage of VI’s superior performance over TCP/IP in LAN environment. Also, actually we have implemented and measured our data transport and Remote Procedure Call (RPC) layer over VI. The aim of our design and implementation is to put forward new techniques to reduce overheads.

The purpose of this research is to develop a system that has been running so far by designing and building a Local Area Network computer network on the sales system at Bencoolen Coffee. Sales system at Bencoolen Coffee And Resto is made using Visual Basic .Net programming language and SQL Server 2008r2 database. This Sales System is based on Wireless Local Area Network with 4 access rights to use the application, namely administrator, cashier, chef, and consumer. With this sales system, it can help Bencoolen Coffe And Resto in managing food and beverage data, as well as daily sales that have been integrated into one unit. The sales system at Bencoolen Coffee And Resto is implemented with 5 laptops connected to 1 local network where 1 laptop is used as a server, 1 laptop is used as an administrator, 1 laptop is used as a chef, 1 laptop is used as a cashier, and 1 laptop is used as a consumer, which has different functions. vary. Based on the results of the tests that have been carried out, the functionality of the Sales system at Bencoolen Coffee And Resto runs as expected, and the system is able to carry out data processing within the scope of the Bencoolen Coffee And Resto network.

Our research targets the lack of ICT infrastructure in rural areas of Bangladesh. The research has the project to build a solar powered, low cost, fully fledged computer server from off-the-shelf components which will act as a network infrastructure for data collection, sharing and network distribution in rural areas of Bangladesh, even where electricity consistency is an issue. It is designed to create a Wi-Fi (2.4GHz) based network around the deployed area effectively creating a High Speed Local Area Network and provide ICT based services such as File Sharing, Instant Messaging, E-Education, Form Submission and a platform for any other on demand web & database services that are required by the community. The research is dedicated to bridging the Digital Divide. The objectives includes (i) building a low cost server using off-the-shelf, low cost hardware and open source software (ii) Provide a high speed data communications network effectively creating a Local Area Network (iii) Run the entire system on an incredibly low power requirement of 3.5 Watts. (iv) Provide a service layer for web services which supports Ajax, php5, MySQL (v) Deploy open source web services for data exchange and communication (vi) provide a system that has low & quick maintenance capabilities, (vii) and finally allow optional cellular (3G) data connectivity to allow the people to have shared internet access.

The remote desktop environment (Virtual Desktop Infrastructure) is attracting interest as a way to strengthen security and support mobile access or telework. To realize the remote desktop environments, a remote desktop protocol is required to transfer information via a network about the user’s operations made on the keyboard and mouse on a terminal to the remote server. The growing popularity of remote desktop environments makes it important to determine the factors that govern the user’s perceived operability with a remote desktop protocol. It is also necessary important to find out the conditions for a wide-area live migration of virtual machines, to use resources efficiently in the remote desktop environments. This paper examines the impact of network quality deterioration (long network delay, high packet loss, small downlink bandwidth) on a user’s perceived operability in remote desktop environments, assuming RDP, PCoIP and ICA as remote desktop protocol. Next, this paper studies the impact of network quality on the performance of a live-migration of virtual machines in remote desktop environments.

The remote desktop environment is attracting interest as a way to strengthen security and support mobile access or telework. To realize the remote desktop environments, a remote desktop protocol is required to transfer information via a network about the users' operations made on the keyboard and mouse on a terminal to the remote server. The growing popularity of remote desktop environments makes it important to determine the factors that govern the user's perceived operability with a remote desktop protocol. It is also necessary important to find out the conditions for a wide-area live migration of virtual machines, to use resources efficiently in the remote desktop environments. This paper examines the impact of network quality deterioration on a user's perceived operability in remote desktop environments, assuming RDP and PCoIP as a remote desktop protocol. Next, this paper studies the impact of network quality on the performance of a live-migration of virtual machines in virtual remote desktop environments.

Peer-to-peer (P2P) systems are, in contrast to client-server (C/S) systems, fault-tolerant, robust, and scalable. While C/S distributed file systems, such as NFS (network file system) or SMB (server message block), do not scale with respect to the number of clients and exhibit a single point of failure, P2P file systems have the potential to cope with an increasing number of participants. Thus, this paper presents DRFS (distributed reliable file system), a P2P file system for cooperative environments. DRFS uses random, content-independent identifiers for data storage, while maintaining high performance and low overhead with many concurrent reads and writes. A dynamic replication mechanism ensures data availability, even under high churn. The application scenario considers an office environment, where DRFS is installed on employees' machines, who store and request files. DRFS has been implemented using the Filesystem in Userspace (FUSE) interface, in order to provide users with transparent read and write operations. Experiments show the benefits of such a peer-to-peer architecture, when a small number of peers reads or writes in parallel: DRFS performs better than NFS, as soon as 6 peers read or write in parallel a 32 MB file. For unpopular files, it is also more reliable than IgorFS.

At high data transmission rates, the packet transmission time of a local area network (LAN) could become comparable to or less than the medium propagation delay. The performance of many LAN schemes degrades rapidly when the packet transmission time becomes small comparative to the medium propagation delay. This paper introduces LANs and discusses the performance degradation of LANs at high speeds. It surveys recently proposed LAN schemes designed to operate at high data rates, including their performance characteristics desirable in LAN medium access protocols are identified and discussed. The paper serves as a tutorial for readers less familiar with local computer communication networks. It also serves as a survey of the state-of-the-art LANs.

The Remote Desktop Connection (RDC) allows remote computer systems to connect to Vista over a network connection. When a connection is established, it’s possible to interact with the target system, obtaining a standard Vista desktop and working as if you were local to that computer.

Solving large scaled optimization problems with parallel search methods requires a I hardware, which allows to run processes simultaniously and which offers a data communication media. The involved processors can either be integrated in a multiprocessor system using a shared memory or in a distributed system with message connection. This may be a Transputer as well as a cluster of independent workstations in a local area network. The advantage of a LAN is a simple realization of global information and a variable definition of the processors topologie. Hence we think, that parallel processing in a LAN is a strong alternative to the common use of transputer technologies.

STMIK Lombok is an institution engaged in education that process data, about students, student practical data, lecturer data, and correspondence. Media file storage applied STMIK Lombok still on a separate computer, both academic data and practical data, so to access the file must be done on the computer where the storage. Based on the capability of Network Attached Storage in local network, by looking at the need of data storage media on the network at STMIK Lombok and the observation result then designed a network architecture by utilizing Network Attached Storage device with focus on fast storage and data transfer process. Stages of research include Data collection, design, and methods of testing To be able to help solve the problem of separate data access then implemented Network Attached Storage (NAS) which is a network to perform distribution of storage assets owned by the server of a network system that has the advantage of faster access to data stored through Local Area Network, minimal cost and cheap and easy maintenance, from setup to configuration, and available Open Source Software. After doing the testing phase it can be concluded that FreeNas as an operating system used for the processing of network storage media is very capable of handling the task well and the facilities that exist in it is very supportive in storage and accessing files. FreeNas web is very helpful and allows users to configure it other than it can be used without having to spend a large cost, and with the facilities in the FreeNas.

Проанализированы методы и инструменты разблокировки данных из локальной сети. Проанализированы современные методы и программные средства защиты данных от несанкционированного доступа из локальной сети. Преимущества и недостатки системы DLP (предотвращение потери / утечки данных) демонстрируют защиту данных от несанкционированного доступа. Предложены критерии повышения эффективности системы DLP и системы DLP с многоагентным интеллектом.