In This Particular Paper the Idea of Protection of Network Has Been Talked About. the Primary Emphasis of This Particular Paper Is Reviewing the Existing Researches In Area of Network Security.. Protection of Community Is Merging a Lot More Than on Levels of Defense In Community. Every Security of Community Level Is Doing Policies Controls. the Authorized Customers Will Be Ready to Increase Use of Community Energy But Malicious Actors Might Be Blocked from Performing Threats Regarding Exploits. Various Mechanism Proposed By Diverse Researchers Is Reviewed In This Paper. the Scope of Community Security Is Discussed In the Conclusion of Investigation.