Liked on YouTube: Network security attacks and services

Network security attacks and services

Network security consists of the policies and practices adopted to prevent and monitor unauthorized access, misuse, modification, or denial of a computer network and network-accessible resources. Network security involves the authorization of access to data in a network, which is controlled by the network administrator. Users choose or are assigned an ID and password or other authenticating information that allows them access to information and programs within their authority. Network security covers a variety of computer networks, both public and private, that are used in everyday jobs; conducting transactions and communications among businesses, government agencies and individuals. Security Attack: Any action that compromises the security of information. Security Mechanism: A mechanism that is designed to detect, prevent, or recover from a security attack. Security Service: A service that enhances the security of data processing systems and information transfers. A security service makes use of one or more security mechanisms. Interruption: This is an attack on availability Interception: This is an attack on confidentiality Modification: This is an attack on integrity Fabrication: This is an attack on authenticity Passive Attack: It attempts to learn or make use of information from the system but does not affect system resources. Active Attack: It attempts to alter system resources or affect their operation. Passive attacks are in the nature of eavesdropping on, or monitoring of transmissions. The goal of the opponent is to obtain information that is being transmitted. There are 2 types of passive attacks they are Passive attacks are very difficult to detect because they do not involve any alteration of the data. Typically, the message traffic is not sent and received in an apparently normal fashion and the sender nor receiver is aware that a third party has read the messages or observed the traffic pattern. However, it is feasible to prevent the success of these attacks, usually by means of encryption. Thus the emphasis in dealing with passive attacks is on prevention rather than detection. Masquerade: It takes place when one entity pretends to be a different entity. Replay: Involves the passive capture of a data unit and its subsequent retransmission to produce an unauthorized effect. Modification of Messages: The some portion of a legitimate message is altered or that messages are delayed or reordered, to produce an unauthorized effect. Denial of Service: It prevents or inhibits the normal use or management of communications facilities. This attack may have a specific target; What is network security explained in minutes https://youtu.be/vqavFou2oxk Predefined functions in PHP https://youtu.be/ewmWqm2H-AA -~-~~-~~~-~~-~- How to install wordpress in xampp step by step https://www.youtube.com/watch?v=YdwMhXX-FLE How to create menu and submenu in wordpress https://www.youtube.com/watch?v=PACC3farNPY https://www.youtube.com/watch?v=8kG3JTbGAbw How to install wordpress theme with demo data free How to change footer copyright in wordpress https://www.youtube.com/watch?v=3oIkPWYXyyQ How to change footer widget in wordpress https://www.youtube.com/watch?v=1HbnBbZX9tA How to backup & restore your wordpress website in 3 minutes free 2018 https://www.youtube.com/watch?v=pSr5w4U36c8 How to use the revolution slider plugin with Button Link - full tutorial 2018 https://www.youtube.com/watch?v=KMBFxOlObx4 https://www.youtube.com/watch?v=z5jbofGMOHM How to add new user role in wordpress How To Add YouTube Video To Your WordPress Website 2018 https://www.youtube.com/watch?v=jCWQ7oA2bBA How to add contact form 7 in wordpress page https://www.youtube.com/watch?v=E9U27FOPNyo How to change favicon in wordpress theme https://www.youtube.com/watch?v=uvczOIqdVYk How to use tubebuddy on youtube - 2018 full tutorial https://www.youtube.com/watch?v=N1zpn3sT-2o How to add additional css in wordpress 2018 https://www.youtube.com/watch?v=2L7lHf_0C-E -~-~~-~~~-~~-~-
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