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Internet of Things (IoT) is the ruling term now-a-days, in which it attracts several smart gadgets and application due to its robust nature and support. In healthcare industry several new technologies are required to improve the stability and provide transparent services to clients. The integration of healthcare maintenance system with respect to Internet of Things support leads to a drastic change in healthcare field as well as this provision provides huge advantages to users. This paper is intended to provide an intense healthcare maintenance scheme by using latest technologies such as Deep Learning, Internet of Things, Fog Computing and Artificial Intelligence. All these innovations are associated together to build a new deep learning strategy called Intense Health Analyzing Scheme (IHAS), in which this proposed approach provides all provisions to clients such as Doctors and Patients with respect to monitor the patient details from anywhere at anytime without any range boundaries. The Fog Computing is an innovative domain, in which it provides ability to the server to operate based on hurdle free processing logic. Artificial Intelligence logic is used to manipulate the health data based on previously trained health records, so that the predictions are more fine compare to the classical healthcare schemes. In traditional schemes it is difficult to raise an alert based on the emergency situation predictions, but in the proposed deep learning strategy assists the proposed approach to send an alert instantly if any emergency cases occurred on patient end. Generally the Fog Servers are used to reduce the occupancy of the storage server and provide reliable storage abilities to server, but in this proposed approach, the fog server is utilized for priority wise data handling nature and stores the health records accordingly. In this nature, the fog servers are handled and provide high efficient results to the clients in an innovative way. With the help of deep learning procedures, the health records are clearly prioritized and maintained into the server end for monitoring. For all this paper introduced a new logic of healthcare maintenance scheme IHAS to provide efficient support to patients as well as doctors in clear manner.

In this paper, we focus on request migration strategies among multi-servers for load balancing. Different from the general load balancing problem, we consider it under a distributed, non-cooperative, and competitive environment. Due to the mentioned characteristics, we view our problem from a game theoretic perspective and formulate it into a non-cooperative game among the multiple servers, in which each server is informed with incomplete information of other servers. For each server, we define its expected response time as a disutility function and try to minimize its value. We also take into account server availability, which impacts the processing capacity of a server and thus its disutility. We solve the problem by employing variational inequality (VI) theory and prove that there exists a Nash equilibrium solution set for the formulated game. Then, we propose an iterative proximal algorithm (IPA) to compute a Nash equilibrium solution. The convergence of the IPA algorithm is also analyzed and we find that it converges to a Nash equilibrium. Finally, we conduct some numerical calculations to verify our theoretical analyses. The experimental results show that our proposed IPA algorithm converges to a Nash equilibrium very quickly and significantly decreases the disutilities of all servers by configuring a proper request migration strategy.

En el presente trabajo llevaremos nuestro conocimiento a la aplicación de soluciones de seguridad implementada bajo sistema operativo Linux, estas herramientas nos permiten brindar seguridad a la infraestructura de cualquier compañía que no cuente con medidas restrictivas o de acceso a sus redes de comunicaciones. Zentyal, es un servicio de servidores compatibles con Microsoft Windows, en el cual se reducen costos, así como su fácil administración al ser un sistema desarrollado sobre Ubuntu. En esta actividad implementaremos esta solución orientada a los servicios de servidor DHCP, DNS y controlador de dominio. In the present work we will take our knowledge to the application of security solutions implemented under the Linux operating system, these tools allow us to provide security to the infrastructure of any company that does not have restrictive measures or access to its communications networks. Zentyal is a server service compatible with Microsoft Windows, in which costs are reduced, as well as its easy administration as it is a system developed on Ubuntu. In this activity we will implement this solution oriented to DHCP, DNS and domain controller server services.

El presente documento constituye el reflejo del desarrollo de un trabajo que da solución a la implementación de servicios de infraestructura IT para atender un caso de estudio como pretexto educativo. Por tanto, se presenta la instalación y configuración de los servicios del servidor Zentyal Server 6.2. Los servicios referenciados son DHCP Server, DNS Server, Controlador de Dominio, Proxy no Transparente, Cortafuegos, File server, Print Server y VPN. Estas instalaciones y configuración se realizaron mediante la utilización de máquinas virtuales mediante el programa VirtualBox This document constitutes the reflection of the development of a work that provides a solution to the implementation of IT infrastructure services to attend a case study as an educational pretext. Therefore, the installation and configuration of Zentyal Server 6.2 server services is presented. The services referred to are DHCP server, DNS server, domain controller, non-transparent proxy, firewall, file server, print server, and VPN. These installations and configurations were done through the use of virtual machines through the VirtualBox program

Large amount of data is generated each second around the world. Along with this technology is evolving each day to handle and store such enormous data in an efficient way. Even with the leap in technology, providing storage space for the gigantic data generated per second globally poses a conundrum. One of the main problems, which the storage server or data center are facing is data redundancy. Same data or slightly modified data is stored in the same storage server repeatedly. Thus, the same data is occupying more space due to its multiple copies. To overcome this issue, Data deduplication can be done. Existing deduplication techniques lacks in identifying the data in an efficient way. In our proposed method we are using a mixed mode analytical architecture to address the data deduplication. For that, three level of mapping is introduced. Each level deals with various aspects of the data and the operations carried out to get unique sets of data into the cloud server. The point of focus is effectively solving deduplication to rule out the duplicated data and optimizing the data storage in the cloud server.

In the world of education, exam is the final stage to evaluate the student abil-ity. The length of the correction process and the expensive cost of printing for manually exams are obstacles that often occurs when administering the ex-ams. Computer-based exams is an effort that is present to solve the problems, by using a computer, then the cost of printing documents and others can be minimized, besides that there is no need for manually correction time, be-cause when students finished the exam, the student's grades can be immedi-ately known. So many advantages are offered by computer-based exams but of course there are still problems that arise. The most common thing is the slow server in processing requests from clients when accessed together, in-creasing the number of servers using Network File Server is one of the efforts to correct the shortcomings of computer-based exams. Using Network File Server is expected to be able to overcome these problems.

Data services such as search, discovery, and management in scalable distributed environments have traditionally been decoupled from the underlying file systems, and are often deployed using external databases and indexing services. However, modern data production rates, looming data movement costs, and the lack of metadata, entail revisiting the decoupled file system-data services design philosophy. In this article, we present TagIt, a scalable data management service framework aimed at scientific datasets, which can be integrated into prevalent distributed file system architectures. A key feature of TagIt is a scalable, distributed metadata indexing framework, which facilitates a flexible tagging capability to support data discovery. Furthermore, the tags can also be associated with an active operator, for pre-processing, filtering, or automatic metadata extraction, which we seamlessly offload to file servers in a load-aware fashion. We have integrated TagIt into two popular distributed file systems, i.e., GlusterFS and CephFS. Our evaluation demonstrates that TagIt can expedite data search operation by up to 10× over the extant decoupled approach.

The Cloud computing is a powerful tool to optimize the cost in terms of hardware, controllable, utility to sharing the data, due to abovementioned features most of the organization switching their applications and services on the cloud. Cloud services offer secure and scalable services, but there is always some security problem when data have transmitted from a central storage server to a different cloud, personal and private data commitment increase risk of data confidentiality, integrity, availability, and authentication before one choose a vendor in the cloud or choose the cloud and move services in the cloud. This paper aims to resolve issues and provide the countermeasures relating to security issues in clouds based web applications. The vulnerability scores, its impact on confidentiality, integrity, availability, access complexity, and risk on assets calculated, and it observed most of the vulnerabilities identified during the scanning are related to security due to mis-configurations of web servers. The results analyzed for the vulnerability scores, vulnerabilities impact on confidentiality, integrity, availability, access complexity, and risk are analyzed description, and risk assessment. The countermeasures for each vulnerability based on the experimental results discussed.

Motivation Genomic data repositories like The Cancer Genome Atlas, Encyclopedia of DNA Elements, Bioconductor’s AnnotationHub and ExperimentHub etc., provide public access to large amounts of genomic data as flat files. Researchers often download a subset of data files from these repositories to perform exploratory data analysis. We developed Epiviz File Server, a Python library that implements an in situ data query system for local or remotely hosted indexed genomic files, not only for visualization but also data transformation. The File Server library decouples data retrieval and transformation from specific visualization and analysis tools and provides an abstract interface to define computations independent of the location, format or structure of the file. We demonstrate the File Server in two use cases: (i) integration with Galaxy workflows and (ii) using Epiviz to create a custom genome browser from the Epigenome Roadmap dataset. Availability and implementation Epiviz File Server is open source and is available on GitHub at http://github.com/epiviz/epivizFileServer. The documentation for the File Server library is available at http://epivizfileserver.rtfd.io.

Regular file server upgrades are indispensable to improve performance, robustness, and power consumption. In upgrading file servers, it is crucial to quickly migrate file-sharing services between heterogeneous servers with little downtime while minimizing performance interference. We present a practical quick file server migration scheme based on the postcopy approach that defers file copy until after switching servers. This scheme can (1) reduce downtime with on-demand file migration, (2) avoid performance interference using background migration, and (3) support heterogeneous servers with stub-based file management. We discuss several practical issues, such as intermittent crawling and traversal strategy, and present the solutions in our scheme. We also address several protocol-specific issues to achieve a smooth migration. This scheme is good enough to be adopted in production systems, as it has been demonstrated for several years in real operational environments. The performance evaluation demonstrates that the downtime is less than 3 seconds, and the first file access after switching servers does not cause a timeout in the default timeout settings; it takes less than 10 seconds in most cases and up to 84.55 seconds even in a large directory tree with a depth of 16 and a width of 1,000. Although the total migration time is approximately 3 times longer than the traditional precopy approach that copies all files in advance, our scheme allows the clients to keep accessing files with acceptable overhead. We also show that appropriate selection of traversal strategy reduces tail latency by 88%, and the overhead after the migration is negligible.

The aim of the study is to increase the effectiveness of information security management for state information systems (SIS) with terminal access devices by improving regulatory legal acts that should be logically interconnected and not contradict each other, as well as use a single professional thesaurus that allows understanding and describe information security processes.Currently, state information systems with terminal access devices are used to ensure the realization of the legitimate interests of citizens in information interaction with public authorities [1].One of the types of such systems are public systems [2]. They are designed to provide electronic services to citizens, such as paying taxes, obtaining certificates, filing of applications and other information. The processed personal data may belong to special, biometric, publicly available and other categories [3]. Various categories of personal data, concentrated in a large volume about a large number of citizens, can lead to significant damage as a result of their leakage, which means that this creates information risks.There are several basic types of architectures of state information systems: systems based on the “thin clientpeer-to-peer network systems; file server systems; data processing centers; systems with remote user access; the use of different types of operating systems (heterogeneity of the environment); use of applications independent of operating systems; use of dedicated communication channels [4]. Such diversity and heterogeneity of state information systems, on the one hand, and the need for high-quality state regulation in the field of information security in these systems, on the other hand, require the study and development of legal acts that take into account primarily the features of systems that have a typical modern architecture of “thin customer". Materials and research methods. The protection of the state information system is regulated by a large number of legal acts that are constantly being improved with changes and additions to the content. At the substantive level, it includes many stages, such as the formation of SIS requirements, the development of a security system, its implementation, and certification. The protected information is processed in order to enforce the law and ensure the functioning of the authorities. The need to protect confidential information is determined by the legislation of the Russian Federation [5, 6]. Therefore, to assess the quality of the regulatory framework of information security for terminal access devices of the state information system, the analysis of the main regulatory legal acts is carried out and on the basis of it, proposals are developed by analogy to improve existing regulatory documents in the field of information security.Results. The paper has developed proposals for improving the regulatory framework of information security for terminal access devices of the state information system- for uniformity and unification, the terms with corresponding definitions are justified for their establishment in the documents of the Federal Service for Technical and Export Control (FSTEC) or Rosstandart;- rules for the formation of requirements for terminals, which should be equivalent requirements for computer equipment in the “Concept for the protection of computer equipment and automated systems from unauthorized access to information ".Conclusion. General recommendations on information protection in state information systems using the “thin client" architecture are proposed, specific threats that are absent in the FSTEC threat bank are justified, and directions for further information security for the class of state information systems under consideration are identified. Due to the large number of stakeholders involved in the coordination and development of unified solutions, a more specific consideration of the problems and issues raised is possible only with the participation of representatives of authorized federal executive bodies and business representatives for discussion.

With searchable encryption (SE), the user is allowed to extract partial data from stored ciphertexts from the storage server, based on a chosen query of keywords. A majority of the existing SE schemes support SQL search query, i.e. 'Select * where (list of keywords).' However, applications for encrypted data analysis often need to count data matched with a query, instead of data extraction. For such applications, the execution of SQL aggregate query, i.e. 'Count * where (list of keywords)' at server is essential. Additionally, in case of semi-honest server, privacy of aggregate result is of primary concern. In this article, the authors propose an aggregate searchable encryption with result privacy (ASE-RP) that includes ASearch() algorithm. The proposed ASearch() performs aggregate operation (i.e. Count *) on the implicitly searched ciphertexts (for the conjunctive query) and outputs an encrypted result. The server, due to encrypted form of aggregate result, would not be able to get actual count unless having a decryption key and hence ASearch() offers result privacy.

Virtual machines (VMs) have become the predominant paradigm for deploying applications, and flash-based caches are widely deployed for VMs to improve their performance. However, due to the semantics of journaling in the VMs' file system are transparent to flash caches, traditional flash caching with journaling induces inefficient logging I/O traffic to the shared storage server and duplicated caching in flash, which not only underutilizes flash caches but also aggravates their wearout. This paper presents JCache, a journaling-aware flash caching solution to address these problems. First, JCache proposes the virtual journal device design to receive and deliver the journaling semantics in the VMs to the cache manager so as to optimize the VM's journaling. Second, JCache proposes a cache-only logging mechanism, which transparently uses the persistent flash caches as the journal area and does cache-only logging to safely eliminate the logging I/O traffic to the shared storage server. Third, JCache proposes the logical caching mechanism, which eliminates the duplicated flash caching induced by logging I/Os and in-place updates to mitigate the wearout of flash caches. Evaluations show that JCache improves the application performance by up to 11.4× and reduces the flash cache writes by up to 42% compared to traditional flash caching solutions.

Web-based online laboratories are easy-access and non-intrusive for online experimentation, which play a key role in online learning and distance education. For web-based online laboratories, the server-side deployment is vital to provide continuous and stable experimental services which are important features of online laboratories. This paper explores the re-deployment of two versions of a web-based online laboratory, the NCSLab system, with the leverage of the NGINX reverse proxy. With proper configuration, the deployed NGINX server enables a modular backend that can integrate different backend technologies such as Tomcat, PHP and file servers together. To support secure access, only one HTTPS certificate is required to be installed on the NGINX proxy server to support the two systems. The proposed methodology provides solutions for server re-deployment without the change of previous network topology. Moreover, the re-deployment is cost-effective for enabling the re-use of the previous domain name, standard HTTP and HTTPS ports as well as the HTTPS certificate.

Public key encryption with keyword search (PEKS) allows a cloud server to retrieve particular ciphertexts without leaking the contents of the searched ciphertexts. This kind of cryptographic primitive gives users a special way to retrieve the encrypted documents they need while preserving privacy. Nevertheless, most existing PEKS schemes only offer single-keyword search or conjunctive-keyword searcha. The poorly expressive ability and constantly inaccurate search results make them hard to meet users' requirements. Although several expressive PEKS (EPEKS) schemes were proposed, they entail high computation and communication costs. An ideal EPEKS scheme should enable fast and accurate ciphertext retrieval, while lowering the storage server's load and reducing the amount of communication data. Drawing on the strongly expressive ability of key-policy attribute-based encryption (KP-ABE), we propose a generic construction of EPEKS from KP-ABE. We demonstrate that the derived EPEKS scheme is secure under the chosen keyword attack if the implicit KP-ABE scheme fulfills the anonymity under the chosen plaintext attack. Furthermore, we present a concrete EPEKS scheme over the prime-order groups. The comparison and experimental results indicate that our scheme is more efficient than the existing EPEKS schemes.

The security and privacy of electronic health records (EHRs) have received considerable attention from healthcare workers and researchers. To ensure security, various encryption and decryption schemes as well as key management protocols have been developed. However, owing to sharing and scalability issues, additional security technologies have been proposed. Nonetheless, these technologies cause other problems, such as efficiency issues. Blockchain-based EHR management systems have been proposed to overcome computational overhead. However, because most blockchain systems are installed by outsourcing companies, EHRs may be leaked to the company. Hence, we herein propose a blockchain-based EHR management scheme with proxy re-encryption. In this scheme, we set a proxy server that re-encrypts the ciphertext between file servers, thereby solving EHR sharing issues. Furthermore, because the server is separated from the blockchain system, the outsourcing company cannot manipulate the server or access the records. In addition, the blockchain assists in access control by using smart contracts, thereby enabling secure and efficient EHR sharing. By performing security analysis, we prove that our proposed scheme solves the aforementioned security problems. In addition, we experimentally demonstrate the efficient operation of the proposed system.