Remote Access Services Research Articles

Security Analysis and Enhancement of a Certificateless Searchable Public Key Encryption Scheme for IIoT Environments

With the fast development of Industrial Internet of Things (IIoT), IIoT storage, which provides a lower cost, higher reliability of data, remote access services, and expandable storage space, is received much attention among enterprises and individual users. However, providing a secure IIoT storage service could be a challenging task for some situations, for example, how to search encrypted data in the IIoT. In this paper, we examine the security of a recent proposed certificateless searchable public key encryption scheme for IIoT environments by Ma et al. We find that their scheme is insecure against an off-line keyword guessing attack. Then, we propose an enhancement based on the scheme and prove the security of our enhancement with a formal model.

Electromagnetic radiation based continuous authentication in edge computing enabled internet of things

Abstract With the rapid proliferation of Internet of Things, the centralized cloud faces the performance problems caused by remote network access and real-time services. To ensure good performance, edge computing paradigm emerges, and requires a secure authentication between edge host and cloud server to safeguard resources against any illegitimate access. Securing edge host authentication is an effective method and cornerstone to protect the information security in edge computing. Existing methods most recognize an entity's identity by password only once at the time of initial stage, which may lead to security problem. Continuous authentication as a novel authentication modality has the ability to alleviate this issue. Unlike the authentication operating merely at point-of-entry, a continuous edge host authentication method is proposed on the basis of electromagnetic radiation which reflects the behavioral characteristics of edge host with heterogeneous hardware. We demonstrate the feasibility of the proposed method through analysis of success rate from ten thousand waterfall spectrograms, and experimental results show that the average success rate of 95% has been achieved by support vector machine combining multiple features.

Remote Access to Documents of the Pre-Revolutionary Period of the State Archive of the Irkutsk Region: the Demand and the Prospect of Using the Service

The article deals with the primary legal framework laid down by Emperor Peter I, which determined the order of conducting and streamlining the archival business in tsarist Russia and in Siberia. The author provides the first documentary mentions of the Irkutsk provincial archive as a repository of documents are indicated. Besides it, the legal acts defining the legal basis of the state archival business in Russia and changes in the status of archival bodies and the state archive of the Irkutsk region to the present time are investigated in the article. Moreover, the main indicators of the Department of use of documents and work with citizens and organizations of the state archive of the Irkutsk region were studied, the demand for documents in state storage in the state archive of the Irkutsk region was analyzed, and dysfunctions in the provision of retrospective information by the archive were revealed for the period from 2013 to 2017. The conclusion is made about the need to use remote access services to view documents of the state archive of the Irkutsk region of the pre-revolutionary period. The prospect of introduction of remote access services on a paid basis for users of the information of the state archive of the Irkutsk region is considered and the necessary material and technical conditions for the provision of services at the appropriate level to meet the needs of the information society of the Russian Federation are determined.

Разработка комплексной системы прогнозного мониторинга факторов, характеризующих пожарную опасность территории Республики Беларусь, с использованием спутниковых и наземных данных

Территория Республики Беларусь характеризуется достаточно высокой пожарной опасностью – так, для лесных насаждений ее средний класс составляет 2,6. При этом традиционно используемые для оценки пожарной опасности территории комплексные (метеорологические) показатели рассчитываются на сутки и позволяют идентифицировать лишь особенности масштаба страны, слишком приблизительны для использования в масштабах района или даже области, что снижает эффективность проведения предупредительных мер, направленных на минимизацию последствий природных пожаров. В этой связи начата разработка системы прогнозного мониторинга факторов, характеризующих пожарную опасность территории, обеспечивающая (за счет использования множества наземных, спутниковых и иных данных) гибкость, динамичность, детальность и доступность результатов. Представлены результаты создания системы прогнозного мониторинга, включая сервис удаленного (интернет) доступа пользователей к результатам прогнозного мониторинга.

Remote Access to digital resources of Mysore University Library: a Practical Approach

Remote access to library’s digital resources is both an expectation and need of today’s user community. This paper gives a glimpse of remote access service provided by Mysore University Library, usage of digital resources & services by using EZ Proxy through residential lines by faculty/ research scholars & students of University of Mysore. This paper gives clear indication that by using remote access the usage of digital resources has been increased

Flexgrid Technologies Enabling BRAS Centralization in MANs

In an evolutionary metro-regional area network (MAN) scenario, targeting the centralization of the broadband remote access server (BRAS), flexgrid technologies can be suitably tailored to be applied. We investigate their applicability, proposing network architecture and data plane solutions to improve the spectrum and network efficiency, while reducing CapEx investment. We first describe the MAN scenario evolution and the envisioned solution based on flexgrid for supporting BRAS centralization. Then, we define the network design problem, propose a solution, and use that to design a realistic regional network (region-A of the Telefonica Spanish network), identifying the transmission requirements for such a representative case. Subsequently, flexgrid data plane solutions are presented, focusing on the design, numerical validation, and experimental assessment of a sliceable bandwidth variable transponder based on orthogonal frequency division multiplexing. We propose an architecture able to meet the identified requirements, supporting flexgrid connections of up to 50 Gb/s per flow over a six-hop path of 545 km. Furthermore, an alternative scheme for the uplink is given and experimentally demonstrated in a four-node photonic mesh network. Finally, the techno-economic viability of the proposed solution is evaluated in comparison with current practice solutions.

PSTN 환경에 최적화된 RAS-RMS 연동 프로토콜 개발 및 차별화된 처리과정 구축

The emergency call device has been installed and operated for the elevator passenger safety, but the call can not be connected or delay to the operator in an emergency. The application of the Internet of Things(IoT) technology is required for the systematic management and reliability of the emergency call device installed in the elevator. To meet these requirements it is necessary to apply the RMS(Remote Management System). Emergency call device periodically reports the operating status information and the emergency call history information of the emergency call device to the RMS in the PSTN(Public Switched Telephone Network) environment, and transmits the call request information in an emergency. RAS(Remote Access Server) plays a role of converting the PSTN signals to TCP / IP. RMS reports a significant outbreak call and abnormal operating conditions to administrators. In this study, we developed optimized protocol to PSTN environment that is required by RMS and implemented its differentiated process. And a RAS-RMS Protocol was added to the Application Layer. Development protocol consisting of simple structure as compared to CoAP, MQTT or HTTP can work properly in low-spec CPU and transmit elevator emergency key information easily.

The potential of remote monitoring and control of protected crop production environment using mobile phone under 3G and Wi-Fi communication conditions

Protected production of crops such as vegetables, flowers, and fruits has been more popular in many countries. To secure stable productivity and profitability, continuous and intensive monitoring and control of protected crop production environment is critical, which is labor- and time-consuming. Failure to maintain proper environmental conditions (e.g., light, temperature, humidity) leads to significant damage to crop growth and quality; therefore, farmers should visit or be present close to the production area. To overcome these problems, application of remote monitoring and control of crop production environment has been increasing, and mobile phones have recently been used to utilize message and remote access services. Levels of technology adoption are different for farmers' needs for their cropping systems. In this paper, the potential of wireless remote monitoring and control of protected agricultural environment using mobile phones were evaluated under 3G and Wi-Fi communication conditions. Two services of monitoring and control of protected crop production were implemented and evaluated: short message service and remote access service. For the short message service, data transmission time under 3G was affected by communication path, but not significantly affected by signal intensity level. For the remote access service, data communication speeds were affected by signal intensity, location, time of day (i.e., the number of users), and moving speed. For 3 G communication, data download and upload speeds decreased as signal intensity level became lower. For Wi-Fi communication, effects of location, signal intensity, and communication direction on the data transmission speeds were statistically significant (α = 0.05) in most of the cases. The effects of time of day were not clear for both 3G and Wi-Fi conditions, but data download speed was significantly (α = 0.05) affected by moving speed (0 and 100 km/h). When the remote access service was applied for greenhouse environment control (e.g., window motor activation), remote access and control were successfully achieved within 13.74 s and 1.08 s, respectively, regardless of signal intensity, location, and moving speed within the tested conditions. Although the results of the study may vary at different communication conditions (e.g., different service provider), overall trends would be still valid and provide useful guidelines to farmers for application of remote monitoring and control using mobile phones.

Research on Application of Virtualization Technology in the Construction of Digital Hospital

With the development of the hospital information construction, there are the continued implementations of virtualization technology in a variety of business applications, which can integrate and deploy these resources, and improve equipment utilization. In this paper, we analyze the problems existed in traditional hospital data center architecture, proposes the construction of new hospital data center using virtualization technology from the aspects of virtualization framework, server resources integration, network configuration optimization, etc. Server virtualization integration could save resources, improve server utilization ratio, simplify the hardware maintenance and upgrades, reduce operating costs and improve maintenance efficiency. We have introduced the experiences of Virtual Technology using in the hospital data center storage, the core server, integration system, network application and remote access applications, server and database platform as well as the application effects, which make a useful exploration for the building and the development of digital hospital.

Research of an IPSec VPN Application in Enterprise Network

A design scheme based on IPSec VPN Service in VMware simulation platform was proposed. At first, this paper introduces the virtual machine and the working principle of IPSec VPN. Using VMware to construct a network simulation platform. Next,Through Routing and Remote Access Service、VPN Service of Windows Server 2008′s, the route between subnets was implemented. At last, the simulation experimental results show that the design of stable operation, high safety, no need of special routing equipment, and has low cost, easy to implement, is a safe, cheap, high performance design solutions.

Remote access to information sources in National and university library: development of service

ABSTRACTNational and University Library established remote access to information sources in september 2004. The article describes implementation and development of the service. Library wanted to offer information sources to users wherever and whenever they would need them. First main evaluation criteria for software selection were integration with existing authentication system and second no need for intervention user side. The EZproxy software from Useful Utilities was chosen. Key step to implementation was establishing communication between software applications EZproxy and COBISS library automation system. Library needed to obtain licence agreements from publishers. Promotion campaign aimed to notify large number of users. Only users of National & University Library were able to use the service. Other users and libraries of Ljubljana University requested to authenticate by credentials of their library. Remote access service was developed further in order to enable authentication for other libraries. We needed to establish authentication and authorisation system and also upgrade and install the communication command procedure on different servers. The data about service usage are presented.

Practice and Exploration of Remote Access to Digital Resources in Libraries

Remote access to digital resources system is widely used in college, but its service mode and function are worth further investigation. This paper first analyzes the advantages and disadvantages of mainstream technology. Then it explores several problems that should be pay attention in constructing and implementing the remote access service at this stage. Finally, it introduces the solution of digital resources' unified management system in Donghua University Library, which considers two aspects of management and readers' use. It also proposes this can solve the blocked problem of authorized IP addresses caused by readers' misusing database.

Next-generation access network architectures for video, voice, interactive gaming, and other emerging applications: challenges and directions

Internet access was the main service supported in legacy access networks via asynchronous transfer mode (ATM)-based digital subscriber line access multiplexers (DSLAMs) and aggregation networks. The broadband remote access server (BRAS) was the Internet Protocol (IP) edge router, and it provided various services including service routing, Point-to-Point Protocol (PPP) handling, shaping, scheduling, and policy-based controls. This architecture is being increasingly replaced by an Ethernet-based aggregation network with potentially multiple broadband network gateways (BNGs) replacing the single BRAS. The migration to Ethernet-based networks is partly driven by the high bandwidth needs of applications such as video on demand (VoD), IP television (IPTV), and the ability to support these applications at cost-effective points. Other drivers that are emerging to further shape the next generation of access networks are examined in this paper. In particular, we focus closely on emerging video and voice applications and the new challenges and requirements they bring. The set of applications and issues that we consider is by no means comprehensive. They have been selected as they pose some interesting challenges and have significant impact on the access network functionality and architecture. For video traffic, we examine the challenges for providing high video quality, fast response for IPTV channel change, and content distribution. For voice, we examine the challenges of emergency standalone operation. Finally, we examine aspects of quality of service (QoS) management, resource control, and network resiliency mechanisms for these emerging applications. We see that the access network needs to become extremely application aware and dynamic and move beyond the traditional IP layer 2/3 forwarding functions in order to meet these challenges effectively.

Going the Extra Mile: Supporting Distance Education at University of Alaska Fairbanks

ABSTRACT The Elmer E. Rasmuson Library at the University of Alaska Fairbanks has a long history of supporting distance education through state-of-the-art, remote access services. Harsh climate conditions (heavy snowfall and icing, high winds, and extreme temperatures), rugged terrain, limited road and telephone systems, and permafrost that prevents the installation of communications networks, all contribute to the challenge of delivering distance education. This article describes and explains the library's services while discussing the challenges of providing information access to a diverse student population living in an area covering over 500,000 square miles.

TR-UWB Systems with Pulse-Position Multi-Pulse Modulation for ECC's and Japan's Radiation Masks

This letter proposes the Pulse-position Multi-pulse Modulation (PMM) with multiple access DTR-UWB systems for the ECC's proposed radiation mask on September 2005 and Japan's radiation mask on March 2006. For the ECC's proposed radiation mask and Japan's radiation mask, the UWB system has to consider the effect from Remote Access Service (RAS) and Radar system between 4.8-5 GHz and 5-6GHz, respectively. That will limit the bandwidth of the system to just 3.4-4.8 GHz. The simulation results show that the performance of the proposed system is superior to that of the conventional TR-UWB communication system. Moreover, compared to the FCC's system, the proposed PMM DTR-UWB and conventional system have better error performance and higher total throughput at low E b /N 0 . So for power limiting system like UWB, ECC's and Japan's systems may become the strong candidates in the UWB communication system.

Method and apparatus for providing a dynamic speech-driven control and remote service access system

An apparatus and a concomitant method for speech recognition. In one embodiment, a distributed speech recognition system provides speech-driven control and remote service access. The distributed speech recognition system comprises a client device and a central server.

Categorical data regression diagnostics for remote access servers

Owing to the growing concerns over data confidentiality, many national statistical agencies are considering remote access servers to disseminate data to the public. With remote servers, users submit requests for output from statistical models fit using the collected data, but they are not allowed access to the data. Remote servers also should enable users to check the fit of their models; however, standard diagnostics like residuals or influence statistics can disclose individual data values. In this article, we present diagnostics for categorical data regressions that can be safely and usefully employed in remote servers. We illustrate the diagnostics with simulation studies.

V.92: The Last Dial-Up Modem?

Ever since the first dial-up modems appeared in the 1960s, their obsolescence has been repeatedly predicted. However, contrary to such predictions, dial-up modems thrived in the 1980s and 1990s as a result of the slow rollout of residential digital services and the unprecedented growth of internet and remote access. Since the first 300 b/s dial-up modem standard (V.21), modem speeds have increased steadily. Most recently, International Telecommunications Union (ITU) Recommendation V.90 (1998) takes advantage of the direct digital-network connection of an internet service provider (ISP) remote-access server to achieve speeds of more than 50 kb/s downstream (from ISP to a user). However, for upstream transmission (from a user to ISP), V.90 employs the older V.34 modulation (1994), which typically delivers on the order of 30 kb/s. A new ITU modem standard called V.92 increases upstream rates to above 40 kb/s, again by taking advantage of pulse code modulation connections. In this paper, we present the transmission scheme that has been adopted for V.92. It involves a generalization of Tomlinson-Harashima precoding. We predict that V.92 will be the last dial-up modem standard. However, we have to wonder whether we might be falling into the same trap into which many others have fallen in the past. The future will be the judge!.

OPTIMAL CONFIGURATION OF ELECTRONIC NETWORKING TECHNOLOGIES FOR SUPPORTING D/B PROJECTS

Electronic Networking Technologies (ENT) have only begun to make inroads into the construction industry practice. ENT provide unparalleled opportunities for the construction industry to introduce new and innovative way of processing information. These opportunities also present a number of challenges in terms of how to plan for and implement ENT services. There is a significant potential for large benefits from the correctly developed and applied ENT solutions for construction projects activities. This paper presents an assessment model for determining utility of various ENT services and the optimal configuration of ENT services for D/B projects. Web and FTP services were included in the ENT configuration as the tools to support all activities that require information retrieval. E-mail, list server, video conferencing, and remote access services were included in the ENT configuration as communication tools. An implementation scenario of the utility assessment model and a discussion on issues that should be considered in implementing ENT services in construction are presented.

OPTIMAL CONFIGURATION OF ELECTRONIC NETWORKING TECHNOLOGIES FOR SUPPORTING D/B PROJECTS

Electronic Networking Technologies (ENT) have only begun to make inroads into the construction industry practice. ENT provide unparalleled opportunities for the construction industry to introduce new and innovative way of processing information. These opportunities also present a number of challenges in terms of how to plan for and implement ENT services. There is a significant potential for large benefits from the correctly developed and applied ENT solutions for construction projects activities. This paper presents an assessment model for determining utility of various ENT services and the optimal configuration of ENT services for D/B projects. Web and FTP services were included in the ENT configuration as the tools to support all activities that require information retrieval. E-mail, list server, video conferencing, and remote access services were included in the ENT configuration as communication tools. An implementation scenario of the utility assessment model and a discussion on issues that should be considered in implementing ENT services in construction are presented. Frist Published Online: 30 Jul 2012