209,846 research outputs found

    The Best Nix for a Combined Honeypot Sensor Server

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    The paper will examine (through case-study) the usability of open source operating systems software for a combined Honeypot sensor server. The study will scrutinize the use of two Unix variants, Linux Red Hat and the Sun Solaris operating systems as candidates for deployment of a combined Honeypot sensor server. Appropriate unbiased metrics, such as extensibility, reliability, ease of install and use, will be employed as a likely criterion to evaluate the operating systems for the role of hosting Honeypot sensor server software

    Real-Time IPC on a client / server model: Multiple OS performances benchmark

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    This paper presents inter processus communication (IPC) real-time performances measured on different operating systems, including GNU/Linux, Windows 98, 2000, NT 4.0 and MacOS X. The adopted point of view is based on a client / server model. The operating systems behavior and message transmission latency times are evaluated in different contexts: with one to ten clients for the server, with systems more or less busy with alternate tasks. As we wanted to measure real world performances, the benchmarks have been applied to operating systems running standard default configurations. Each time it was possible, we compared the different systems on the base of local Unix sockets communication way. But above all, we choose the most efficient communication way per system to evaluate the overall best performances that one can expect in a client / server model

    ITS 212T.01: Network Operating Systems - Server Applications

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    Complete characterisation of the customer delay in a queueing system with batch arrivals and batch service

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    Whereas the buffer content of batch-service queueing systems has been studied extensively, the customer delay has only occasionally been studied. The few papers concerning the customer delay share the common feature that only the moments are calculated explicitly. In addition, none of these surveys consider models including the combination of batch arrivals and a server operating under the full-batch service policy (the server waits to initiate service until he can serve at full capacity). In this paper, we aim for a complete characterisation-i.e., moments and tail probabilities - of the customer delay in a discrete-time queueing system with batch arrivals and a batch server adopting the full-batch service policy. In addition, we demonstrate that the distribution of the number of customer arrivals in an arbitrary slot has a significant impact on the moments and the tail probabilities of the customer delay

    NET.OS : Network Server Operating Systems Based on Open Source

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    Open source server operating system mostly still usestext-based user interface and it makes hard to learn to new userin Vocational High School of Computer Network Department.This problem will be dealt by providing Graphical User Interface(GUI) in the server operating system accompany Command LineInterface feature. This paper describes the development of opensource server operating system which provides serverconfiguration in text mode and graphics mode. This researchmethod involves the study of literature and the development ofoperating systems with remastering concept including selectingfeatures, selecting graphics display, selecting the basic system,remastering, and testing to the Server PC. Research productcalled Net.OS (Network Technology Server OS) was tested incomputer networks to validate the server functions. The resultsshow that all functions can work successfully. Net.OSimplementation can provide a user friendly to configure theserver in a web-based graphical mode, text mode, moreover itbecomes a bridge of Linux newbie to learn the serverconfiguration using GUI

    UNIX secure server : a free, secure, and functional server example

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    The purpose of this thesis work was to introduce UNIX server as a personal server but also as a start point for investigation and developing at a professional level. The objective of this thesis was to build a secure server providing not only a FTP server but also an HTTP server and a cloud system for remote backups. OpenBSD was used as the operating system. OpenBSD is a UNIX-like operating system made by hackers for hackers. The difference with other systems that might partially provide solutions is that OpenBSD requires a fully understanding of the configuration files in order to cover all the security holes, therefore, is needed to go through the documentation and examples of these files. As a result we have a fully functional server with the next following features: anonymous FTP server, HTTP server including PHP, SSH server and of course a backup system in a cloud with cryptography enabled

    Multi-Platform Diskless Workstation

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    It is time consuming, costly and labor intensive to manage a large number of computers. Multi-platform diskless workstation is a computer that can run several operating systems and has low maintenance cost. Its configuration and operating systems are stored inside the server. The workstation is configured to run applications from the server. It has no hard disk and stored data inside the server. The workstation also has the ability to roam the Internet through router. In actuality, the workstation is a dumb terminal. Since all the management of the workstation is done on the server, the cost in maintaining the network is reduced. The workstation is booted from a pre-configured 1.44MB floppy disk. It requests for its configuration parameters from the server. The server will also assign IP address to the workstation. Once the workstation received all its parameters, it operates as normal computer with the exception that the software and data are accessed through the network from the server. All activities are done on the server and displayed on the workstation monitor. The benefit of using multi-platform diskless workstation is the centralized management of the network. Centralized management will enable software upgrades to be done quickly and smoothly. It would also deny the user from installing unauthorized software. The treat of virus attack can also be reduced. By being multi-platform, the user can gained access to different applications based on different operating systems. The management centric concept incorporated in multi-platform environment reduces the total cost of computer ownership significantly
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