Computer networks lecture notes and schedule class mailing list is eecs489 at eecs. Network security is the security provided to a network from unauthorized access and risks. Cost of security risk mitigation the process of selecting appropriate controls to reduce risk to an acceptable level the level of acceptable risk determined by comparing the risk of security hole exposure to the cost of implementing and enforcing the security policy. Security management relates to the physical safety of buildings, people and products, as well as information, network and telecommunications systems protection. Network security measures are needed to protect data during their transmission and to guarantee that data transmissions are authentic. This chapter provides an overview of network management. These documents are of great importance because they spell out how the organization manages its security practices and details what is.
Cmpsc 443 introduction to computer and network security spring 2012 professor jaeger page malware malware software that exhibits malicious behavior typically manifest on user system virus selfreplicating code, typically transferring by shared media. This note focuses on practices, standards, and open issues regarding the management of networks, computers that are connected to networks, and business applications that reside on the computers. These security baseline overview baseline security. Security management is a broad field that encompasses everything from the supervision of security guards at malls and museums to the installation of hightech security management systems designed to protect an organizations data. Network security management helps reduce manual tasks and human errors by simplifying administration with security policy and workflow tools through a centralized management interface. Network security management can reduce risk across the network and protect data by leveraging the information on threats, network vulnerabilities and their. Overview of security management and security planning based on chap 1 and 2 of whitman book notes in the reading list section lecture 1. Substitution ciphers, transpositions, making good encryption algorithms, the data encryption standard, the aes encryption algorithms, public key. Notes on network security introduction security comes in all shapes and sizes, ranging from problems with software on a computer, to the integrity of messages and emails being sent on the internet. The cns pdf notes book starts with the topics covering information transferring, interruption, interception, services and mechanisms, network security model, security, history, etc. Home support technical documentation software management product documentation network and security. The network security is a level of protection wich guarantee that all the machines on the network are working optimally and the users machines only possess the rights that were granted to them.
An approach towards secure computing rahul pareek lecturer, mca dept. The securitymanagement domain also introduces some critical documents, such as policies, procedures, and guidelines. Attacker has gained control of a host in the communication path between two victim. A network is a set of devices often referred to as nodes connected by communication links. Here you can download the free lecture notes of information security pdf notes is pdf notes materials with multiple file links to download.
It is the duty of network administrators to adopt preventive measures to protect their networks from potential security threats. Having the technology in place, the procedures and policies laid out, and the necessary people to effectuate the same, an organization needs to ensure that on a day to day basis. The content and level of detail of this policy is discussed in chapter 8. Network security measures to protect data during their transmission internet security measures to protect data during their transmission over a collection of interconnected networks security attacks, services and mechanisms to assess the security needs of an organization effectively, the manager responsible for. Download cs6701 cryptography and network security lecture notes, books, syllabus parta 2 marks with answers cs6701 cryptography and network security important partb 16 marks questions, pdf books, question bank with answers key download link is provided for students to download the anna university cs6701 cryptography and network security lecture notes,syllabuspart a 2 marks with. One such device might be a network management interface to a. Security management addresses the identification of the organizations information assets. Cryptography and network security pdf notes cns notes. Tcp connect scanning, tcp syn half open scanning, tcp fin, xmas, or null stealth scanning, tcp ftp proxy bounce attack scanning.
Lecture notes for use with cryptography and network security by william stallings. Many good books covering computer or network security are available. It has become impossible to carry out network management functions without the support of automated tools and applications. Data communications and information security network topologies, protocols, and design encryption. Cmpsc 443 introduction to computer and network security spring 2012 professor jaeger page the danger what makes worms so dangerous is that infection grows at an exponential rate a simple model. This blog contains a huge collection of various lectures notes, slides, ebooks in ppt, pdf and html format in all subjects.
Cryptography and network security william stallings. When a computer is connected to internet, it can create many problems for corporate companies. Computer networks that are involved in regular transactions and communication. A firewall is a device installed between the internet network of an organization and the rest of internet. Identification of anomalous snmp situations using a cooperative connectionist exploratory projection. Network security baseline ol1730001 1 introduction effective network security demands an integrated defenseindepth approach. Performance can be measured in many ways, including transit time and response time. Network security is a term to denote the security aspects attributed to the use of computer networks. Professionals working in security management can range from guards who protect buildings to it professionals who develop hightech network systems and software applications. Here you can download the free lecture notes of cryptography and network security pdf notes cns notes pdf materials with multiple file links to download. Free network management books download ebooks online. Eric whyne computer security handbook will continue its tradition of being handbook the.
Download a free network security training course material,a pdf file unde 16 pages by matt curtin. Tcp connect scanning, tcp syn half open scanning, tcp fin, xmas, or null stealth scanning, tcp ftp proxy bounce attack scanning synfin scanning using ip fragments bypasses some packet filters, tcp ack and window scanning, udp raw icmp port unreachable scanning. It examines both theoretical and practical issues in the field of network management. Security related websites are tremendously popular with savvy internet users. Securityrelated websites are tremendously popular with savvy internet users. Devices need standards to communicate and exchange data. These notes have been authored by dr lawrie brown at the australian defence force academy. The criteria is a technical document that defines many computer security concepts and provides guidelines for their implementation.
The meaning of computer security, computer criminals, methods of defense, elementary cryptography. Transit time is the amount of time required for a message to travel from one device to. Free network management books download ebooks online textbooks. The most important of these are performance, reliability, and security. Writing almost 10 years ago he notes that security managers seriously lag. Network security measures to protect data during their transmission internet security measures to protect data during their transmission over a collection of interconnected networks security attacks, services and mechanisms to assess the security needs of an organization effectively, the manager. Specify a protocol to be used by the two principals that makes use of the security algorithm and the secret information to achieve a particular security service. Risk management is an ongoing, proactive program for establishing and maintaining an acceptable information system security posture.
Security comes in all shapes and sizes, ranging from problems with software on a computer, to the integrity of. My aim is to help students and faculty to download study materials at one place. Notes the types of webhosting plans, offered by the webhosting companies. Lecture notes information technology essentials sloan. Download network security and management by singh, brijendra. Digital certificates, private key management, the pkix model. The first layer of a defenseindepth approach is the enforcement of the fundamental elements of network security. Lecture notes section contains the notes for the topics covered in the course. We begin by looking at the requirements for network management. Network security is not only concerned about the security of the computers at each end of the communication chain. Information security notes pdf is notes pdf book starts with the topics. Other important aspects of this task include documenting equipment location and any notes on. Some important terms used in computer security are.
It is common to disguise ones address and conceal the identity of the traffic sender passive involves only reading data on the network. Sep, 2011 download free lecture notes slides ppt pdf ebooks this blog contains a huge collection of various lectures notes, slides, ebooks in ppt, pdf and html format in all subjects. In this chapter, the major network management issues, including network management requirements, functions, techniques, security, some wellknown network management protocols and tools, will be discussed. By placing a packet sniffer on a network in promiscuous mode, a malicious intruder can capture and analyze all of the network traffic. However, by running this network security management checklist regularly we recommend once every fortnight, you can protect your system and prepare for the worst. It is sometimes referred to as cyber security or it security, though these terms generally do not refer to physical security locks and such. Such an information should not be disclosed to the unauthorized persons. Substitution ciphers, transpositions, making good encryption algorithms, the data encryption standard, the aes encryption algorithms, public key encryptions, uses of encryption. Security rule, risk analysis and risk management are important to covered entities since these processes will form the foundation upon which an entitys. Oct 17, 2012 download free lecture notes slides ppt pdf ebooks this blog contains a huge collection of various lectures notes, slides, ebooks in ppt, pdf and html format in all subjects. Information security and privacy lpu distance education. Public key cryptography standards, xml, pki and security. Download free sample and get upto 48% off on mrprental. Network security, administration and management research unit 6.
Computer networks that are involved in regular transactions and communication within the government, individuals. A node can be a computer, printer, or any other device capable of sending andor receiving data generated by other nodes on the network. Once an acceptable security posture is attained accreditation or certification, the risk management program monitors it through every day activities and followon security risk analyses. Once an acceptable security posture is attained accreditation or certification, the risk management program monitors it through every day activities and follow on security risk analyses. Security of information system refers to protecting all components of information system, specifically data, software, hardware and networks. Network security is a big topic and is growing into a high pro. A network packet analyzer will try to capture network packets and tries to display that packet data as detailed as possible. Network security management can reduce risk across the network and protect data by leveraging the information on threats, network vulnerabilities and their criticality, evaluating potential options to block. In such complex information systems, many significant network assets are dispersed far from network management personnel. Lecture notes lecture notes course home syllabus calendar readings lecture notes. Most companies put a large amount of confidential information online.
In todays economic context, organizations are looking for ways to improve their business, to keep head of the competition and grow revenue. Buy network security and management by singh, brijendra pdf online. Network security entails protecting the usability, reliability, integrity, and safety of network and data. Introduction network security is a complicated subject, historically only tackled by welltrained and experienced experts. In order to enforce high protection levels against malicious. Information security pdf notes is pdf notes smartzworld. Find materials for this course in the pages linked along the left. Lecture notes and readings network and computer security. Pdf cs6701 cryptography and network security lecture.
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