• Inala Deepak
• Deva Varun

Computer and Network security means detecting unauthorized users and preventing unauthorized access. This can be prevented by mainly firewall.Firewall is present between the users and system to prevent unauthorized user access from users.There are also a problem due to firewall they are Network Topology, Distributed Firewall .Network topology cannot prevent unauthorized access from certain protocols due to end to end encryption. Others problem occurred due to distributed firewall .Indistributed firewall send a protocol to the server so unauthorized user can be access our data with protocol.Here we discussvarious type of network threats in network securityapproaches and their solution by the use of different firewalls phenomena.

Network Security, Network Threats,firewalls, Traffic.

"A Survey on: Network Security and Management, Threats & Firewalls", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.199-203, March-2019, Available :http://www.jetir.org/papers/JETIRAR06045.pdf

"A Survey on: Network Security and Management, Threats & Firewalls", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp199-203, March-2019, Available at : http://www.jetir.org/papers/JETIRAR06045.pdf