Firewall and network security

Firewalls are computer security systems that protect your office/home PCs or your network from intruders, hackers & malicious code. Firewalls protect you from offensive software that may come to reside on your systems or from prying hackers.

This is analysis of China’s “Great Cannon,” our term for an attack tool that we identify as separate from, but co-located with, the Great Firewall of China. The first known usage of the Great Cannon is in the recent large-scale novel DDoS attack on both GitHub and servers used by GreatFire.org.

OVERVIEW Successful completion of this three-day, instructor-led course will enable the student to install, configure, and manage the entire line of Palo Alto Networks ® Next-Generation firewalls. COURSE OBJECTIVES Students attending this introductory-level class will gain an in-depth knowledge of how to install, configure, and manage their firewall, as well as configuration steps for the security, networking, threat prevention, logging, and reporting features of the Palo Alto Networks Operating System.

Writing programs (or programming) is a very creative and rewarding activity. You
can write programs for many reasons, ranging from making your living to solving
a difficult data analysis problem to having fun to helping someone else solve a
problem. This book assumes that everyone needs to know how to program, and
that once you know how to program you will figure out what you want to do with
your newfound skills.

This article paper is one of the “Most Read” in the LinkedIn Publishing platform, which has been made and provides a course background based on hands-on experiences with the requirement of Fire System Design and Analysis as part of the building built design and construction involving any facilities, which is an environmental design process and management from start to finish methodology. An introduction that will give a glimpse concerning the Fire System design within the building construction based on the client requirement and purpose of the development that explains and discuss the critical phases, elements, usage, and functions of every detail of the project. Moreover, this article talked about fire scenario that was happened in the Europe region within the two high rise building aspects due to the negligence of concerned parties and developer that caused residents fatalities and accidents drastically.
This article is an excerpt topic and edited from "Fire System Design and Analysis" approved AIUs Master Subject Curriculum Course of a research thesis submitted to the Atlantic International University School of Science and Engineering (AIU SCE USA) with a Grade of 4.00 ("A+") earned the Master of Science in Mechanical Engineering in 2010-2012 with 3.78 GPA. However, this thesis write-up is one of the sources in the Thesis Dissertation from PUP (Polytechnic University of the Philippines) Master of Science in Construction Management (MSCM). Also, a theoretical background of Ph.D. Course Thesis, “Building Fire Protection and Safety Engineering,” from the AIU SCE USA with an excellent marked “A+” (4.00) grade earned for this doctoral course subject, 2016-18 – Ph.D.in Building and Construction Engineering.

Software-Defined-Networking (SDN) has been recently arising as a new technology in the IT industry. It is a network architecture that hopes to provide better solutions to most of the constraints in contemporary networks. SDN is a centralized control architecture for networking in which the control plane is separated from the data plane, the network services are abstracted from the underlying forwarding devices, and the network's intelligence is centralized in a software-based directly-programmed device called a controller. These features of SDN provide more flexible, programmable and innovative network's architecture. However, they may pose new vulnerabilities and may lead to new security problems. In this paper, we propose the application-aware firewall mechanism for SDN, which can be implemented as an extension to the network's controller. In order to provide more control and visibility in applications running over the network, the system is able to detect network applications that may at some point affect network's performance, and it is capable to dynamically enforce constraint rules on applications. The firewall architecture is designed as four cooperating modules: the Main Module, the Filtering Module, the Application Identification Module, and the Security-Enforcement Module. The proposed mechanism checks the network traffic at the network, transport, and application levels, and installs appropriate security instructions down into the network. The proposed solution features were implemented and tested using a Python-based POX controller, and the network topology was built using Mininet emulation tool.

International Journal of Wireless Network Security (IJWNS) 
http://flyccs.com/jounals/IJWNS/Home.html
Scope
International Journal of Wireless Network Security (IJWNS) is a open access journal that publishes articles which contribute new results in all areas of Computer Networks & Communications. The journal focuses on all technical and practical aspects of Computer Networks & data Communications. Authors are solicited to contribute to this journal by submitting articles that illustrate research results, projects, surveying works and industrial experiences that describe significant advances in the Computer Networks & Communications.
Topics of interest include, but are not limited to, the following
• Cryptographic protocols
• Cryptography and Coding
• Untraceability
• Privacy and authentication
• Key management
• Authentication
• Trust Management
• Quantum cryptography
• Computational Intelligence in Security
• Artificial Immune Systems
• Biological & Evolutionary Computation
• Intelligent Agents and Systems
• Reinforcement & Unsupervised Learning
• Autonomy-Oriented Computing
• Coevolutionary Algorithms
• Fuzzy Systems
• Biometric Security
• Trust models and metrics
• Regulation and Trust Mechanisms
• Data Integrity
• Models for Authentication, Trust and Authorization
• Information Hiding • Information Hiding
• Data & System Integrity
• E- Commerce
• Access Control and Intrusion Detection
• Intrusion Detection and Vulnerability Assessment
• Authentication and Non-repudiation
• Identification and Authentication
• Insider Threats and Countermeasures
• Intrusion Detection & Prevention
• Secure Cloud Computing
• Security Information Systems Architecture and Design and Security Patterns
• Security Management
• Cryptography and Information Security
• Security Requirements (threats, vulnerabilities, risk, formal methods, etc.)
• Sensor and Mobile Ad Hoc Network Security
• Service and Systems Design and QoS Network Security
• Software Security
• Security and Privacy in Mobile Systems
• Security and Privacy in Pervasive/Ubiquitous Computing
• Security and Privacy in Web Sevices
• Security and Privacy Policies
• Security Area Control
• Security Deployment•
Paper Submission
Authors are invited to submit papers for this journal through Submission System. Submissions must be original and should not have been published previously or be under consideration for publication while being evaluated for this Journal. For paper format download the template in this page Manuscript Template
Important Dates

Submission Deadline : October 27, 2018
Notification :November 27, 2018
Final Manuscript Due :December 05, 2018
Publication Date : Determined by the Editor-in-Chief

TO SUBMIT YOUR PAPER, PLEASE CLICK THE FOLLOWING LINK Submit

Contacts

Here's where you can reach us : jwnsjournal@yahoo.com(or) jwnsjjournal@gmail.com

Wireless communications, nowadays, becomes a vital element of people's daily life. Providing global connectivity in future communication systems via the heterogeneous network opens up many research topics to investigate potentialities, enabling technologies, and challenges from the perspective of the integrated wireless systems. This paper aims to drive a comprehensive and comparative study on terrestrial-aerial platforms-satellite wireless communications systems, includes their characteristics and unravelling challenges. The comparison focuses on issues that reportedly can evaluate any wireless systems for temporary events. These issues are altitude and coverage, Radio Frequency (RF) propagation, interference, handover, power supply constraints, deployment and maintenance challenges, reliability on special events or disaster relief, cost-effectiveness and environmental impact. Last, Quality of service (QoS) performance is analysed for the four wireless communication systems from the temporary events perspective using the OPNET Modeller simulation tool. Results infer that space-based wireless systems outperform terrestrial ones.

Information Systems and Networks are subject to electronic attacks. Attempts to breach information security are rising
every day, along with the availability of the Vulnerability Assessment tools that are widely available on the internet, for
free, as well as for a commercial use. Tools such as SubSeven, BackOrifce, Nmaps, L0ftCrack, can all be used to scan,
identify, probe, and penetrate systems on the network. Firewalls are put in place to prevent unauthorized access to the
Enterprise Networks. Unfortunately, firewalls alone are not enough to protect our systems. This paper describes the
characteristics of Network-Base IDPS technologies, outlines the necessity of the implementation of Intrusion Detection
Systems in the enterprise environment and a brief evaluation of Snort® Freeware technology

The International Journal of Computer Networks & Communications (IJCNC) is a bi monthly open access peer-reviewed journal that publishes articles which contribute new results in all areas of Computer Networks & Communications .The journal focuses on all technical and practical aspects of Computer Networks & data Communications. The goal of this journal is to bring together researchers and practitioners from academia and industry to focus on advanced networking concepts and establishing new collaborations in these areas.

The principles of security threats prevent inappropriate access, modification or manipulation of data from taking place. The chapter focuses on Information security threats principle components as well as the security. The comprehensive model for information security is also discussed here very briefly. Finally, this chapter focuses on information security system and the various implementation phases. In this chapter mainly different areas are discussed such as Information Security and Critical characteristics of information in Mobile Ad-hoc Networks.

Secure Shell (SSH) is a secure remote login program which can be used in place of regular telnet. It has become the default remote access method for administration of UNIX systems. It is very common for public Internet facing servers to experience attacks that attempt to brute force username and password combinations via SSH to gain access. This paper examines these attacks depending on SSH log file to find unsuccessful logins then blocks IP addresses of unsuccessful logins for a period of time that is decided by administrator and then send an e-mail to administrator to consider whether the addresses blocked belong to users failed to access or by an attacker, finally the administrator will block attacker's IP address forever. Some attackers highly skilled and just used trusted IP address as a user name then the software will block the IP address of attacker as well as the victim IP address that is used by attacker. In this paper, an adaptive mechanism was built-in to distinguish between attacker IP address and victim IP address which may be used by an attacker, and then the program will block just attacker IP address.

Understanding the conceptual fundamentals of Firewall policies are the basic terms to be considered. Developing an algorithm to detect and resolve anomalies comes after. From the basic conception to complex design, this report focuses on Firewall (defense system) and its set of rules defined by system and network administrator. Intrusion is the major issue attacking various organizations and agencies to gain credentials causing high risk and loss of revenue. Any illegal packets coming from the external source verifying themselves as a legitimate client could trouble the entire network. Thus we implement Firewall to authenticate users and block unwanted traffics which don’t have access to destination. Configuring Firewall rules are much stiffer which lead to creation of anomalies. Anomalies create a high risk in network releasing loop holes and easily vulnerable to threats. Network administrator must plan the set of policies wisely to prevent such problems. In our report, we will be discussing on various aspects of anomalies with their types and relationship and produce an application through which anomalies could be detected and resolved. Furthermore on report, there will be illustrations of different entities of firewall, working program with its implementation and solidified background with future areas to cover.

A data center is an infrastructure that supports Internet service. Cloud computing is rapidly changing the face of the Internet service infrastructure, enabling even small organizations to quickly build Web and mobile applications for millions of users by taking advantage of the scale and flexibility of shared physical infrastructures provided by cloud computing. In this scenario, multiple tenants save their data and applications in shared data
centers, blurring the network boundaries between each tenant in the cloud. In addition, different tenants have different security requirements, while different security policies are necessary for different tenants. Network virtualization is used to meet a diverse set of tenant-specific requirements with the underlying physical network, enabling multi-tenant datacenters to automatically address a large and diverse set of tenants requirements. In this
paper, we propose the system implementation of vCNSMS, a collaborative network security prototype system used in a multi-tenant data center. We demonstrate vCNSMS with a centralized collaborative scheme and deep packet inspection with an open source UTM system. A security level based protection policy is proposed for simplifying the security rule management for vCNSMS. Different security levels have different packet inspection schemes and are enforced with different security plugins. A smart packet verdict scheme is also integrated into vCNSMS for intelligence flow processing to protect from possible network attacks inside a data center network.

This paper is a survey of the work, done for making an IDS fault tolerant. Architecture of IDS that uses mobile Agent provides higher scalability. Mobile Agent uses Platform for detecting Intrusions using filter Agent, co-relater agent, Interpreter agent and ...

Firewalls are extremely effective at enforcing security policies in wired networks. Perhaps surprisingly, firewalls are entirely nonexistent in the wireless domain. Yet, the need to selectively control and block radio communication is particularly high in a broadcast environment since any node may receive and send packets. In this demo, we present WiFire, a system that brings the firewall concept to wireless networks. First, WiFire detects and analyzes packets during their transmission, checking their content against a set of rules. It then relies on reactive jamming techniques to selectively block undesired communication. We show the feasibility and performance of WiFire, which is implemented on the USRP2 software-defined radio platform, in several scenarios with IEEE 802.15.4 radios. WiFire is able to classify and effectively block undesired communication without interfering with desired communication.

The defense system against servers is generally still done manually by
administrators. To overcome this, we need a system that functions to inform
threats that occur optimally and be resolved quickly. The IDS network security
system was developed using Suricata. Suricata itself will be built using OPNsense.
With the Suricata system using OPNsense, it can detect or prevent incoming
attacks.

A selective forwarding attack in mobile wireless sensor networks is an attack that selectively drops or delivers event packets as the compromised node moves. In such an attack, it is difficult to detect the compromised node compared with the selective forwarding attack occurring in the wireless sensor network because all sensor nodes move. In order to detect selective forwarding attacks in mobile wireless sensor networks, a fog computing-based system for a selective forwarding detection scheme has been proposed. However, since the proposed detection scheme uses a single path, the energy consumption of the sensor node for route discovery when the sensor node moves is large. To solve this problem, this paper uses fuzzy logic to determine the number of multi-paths needed to improve the energy efficiency of sensor networks. Experimental results show that the energy efficiency of the sensor network is improved by 9.5737% compared with that of the existing scheme after 200 seconds when using the proposed scheme.

Chinese authorities have regulated the Internet since the early days of the country going online. The government’s efforts to regulate and control the development of networked communications have been famously paralleled to the construction of a “Great Firewall,” a play on words combining the Great Wall of China and the technical term for a network security system. The Great Firewall, also abbreviated as GFW, has become a shorthand term to indicate an ensemble of legal provisions, infrastructural projects, governmental intervention, and political campaigns targeting the dissemination of online content in China. While the term has entered popular culture and media discourse, it does not indicate a specific artifact or technology, but it broadly encapsulates the limitations, surveillance, and censorship, which, to debatable degrees, influence the way people use the Internet in China.

Zone firewall adalah lingkungan jaringan di kelompokan serta mempunya rule dan di pantau secara real time dan terkordinasi untuk terhubung 1 sama lain secara external maupun internal Zone-zone yang termasuk dan di lindungi/saring dalam skurity zone

The security of Critical Infrastructures has become a prominent problem with the advent of modern ICT technologies used to improve the performance and the features of Process Control Systems. Several scientific works have showed how Supervisory Control And Data Acquisition Systems (SCADA), i.e. the systems that control industrial installations, are exposed to cyber-attacks. Traditional ICT security countermeasures (e.g. classic Firewalls, Antiviruses and IDS) fail in providing a complete protection to these systems since the needs of SCADA systems are different from those of traditional ICT for which security tools have been developed (Office PCs, TCP/IP communication protocols etc.). In this paper we present an innovative approach to the protection of SCADA systems based on three key concepts: Critical State based event correlation, SCADA protocols filtering and K-survivability.

Firewall merupakan alat untuk mengimplementasikan kebijakan security (security policy). Sedangkan kebijakan security, dibuat berdasarkan pertimbangan antara fasilitas yang disediakan dengan implikasi security-nya.

Adapun yang dibahas dalam Bahan Presentasi ini yaitu :
*Definisi Firewal
*Karakteristik Firewall
*Jenis-Jenis Firewall
*Tipe-Tipe Firewall
*Fungsi Firewall
*Kekurangan Firewall
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14 th International Conference on Networks & Communications (NeCoM 2022) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of Computer Networks & Data Communications. The conference looks for significant contributions to the Computer Networks & Communications for wired and wireless networks in theoretical and practical aspects. Original papers are invited on computer Networks, Network Protocols and Wireless Networks, Data communication Technologies, and Network Security. The aim of the conference is to provide a platform to the researchers and practitioners from both academia as well as industry to meet and share cutting-edge development in the field. Authors are solicited to contribute to the conference by submitting articles that illustrate research results, projects, surveying works and industrial experiences that describe significant advances in the following areas, but are not limited to.

A Prefeitura Municipal de Cuiabá possui uma rede metropolitana baseada nas tecnologias de redes sem fio WiMAX. Através dessa rede, as secretarias municipais, creches, escolas, hospitais e centros de saúde têm acesso à internet e aos diversos sistemas oferecidos pela prefeitura, que vão desde sistema de cadastramento escolar até sistema de prontuários médicos, por exemplo. Devido a importância dos serviços oferecidos e à distribuição geográfica da rede, é necessário um monitoramento e controle de seus ativos com objetivo de garantir uma alta disponibilidade. Sendo assim, foi implementada a ferramenta de monitoramento baseada em software livre CACTI. Este software coleta e gerencia diversas informações sobre o estado dos ativos de uma rede de computadores. Os detalhes do processo de análise e implementação serão descritos neste resumo. Palavras-chave: Cacti. Monitoramento de Redes. SNMP. Introdução A Prefeitura Municipal de Cuiabá (PMC) possui uma rede metropolitana que cobre diversos pontos da cidade e oferece vários serviços tecnológicos para secretarias municipais, creches, escolas municipais, centros de saúde e hospitais (incluindo o pronto-socorro da cidade). Devido ao baixo índice de controle e acesso a informações, o monitoramento dessa estrutura foi considerado ineficiente apesar da grande quantidade disponível de ferramentas comerciais e Open Source para monitoramento e gerenciamento de redes de computadores (JUNIOR, DE BARROS, 2008). Além disso, suas características geográficas e expressiva quantidade de hosts (locais que fazem parte da rede, como as creches, escolas e etc) e de equipamentos dificultavam um controle adequado dessa estrutura.