• Nega Teferra
• Harshal Shah

Abstract___ Thanks to technology, communication is very easy and efficient by the help of network. As a result people prefer internet communication for the fast reachability and delivery. At this time the two or more communicating parties should be consider the security of the network and know how to defeat the attacks on the network. By now, in this digital era season, there are enormous numbers of attacks are there in the internet for sniffing and spoofing. Because of several attackers are spread to assault network, keeping safe network security is the basic thing for this generation. Security becomes a very big concern when we using networks organize in an accidental or unfriendly environment. The duty of Network Security is not only keeping secure the end point of the system also it’s the entire network. This review paper is tells us something how the end user is secure their system more conveniently and focus on several attacks that used by the intruders and the mechanism to defeat them. And also it focused on distinguishing mechanism for protecting network security and the obstacle that affect the network.

Network Security; Attacks; Encryption; Threats; Authentication; DOS; Password; Security tools

"A Review on Techniques, Tools and Defense for Network Security Attacks and Threats", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 4, page no.309-312, April-2018, Available :http://www.jetir.org/papers/JETIR1804279.pdf

"A Review on Techniques, Tools and Defense for Network Security Attacks and Threats", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 4, page no. pp309-312, April-2018, Available at : http://www.jetir.org/papers/JETIR1804279.pdf