Network Security Firewalls

Updated : 01-07-2017 Published : by :
Computer Science Engineering Seminars

Initially, there were not many threats to network security. With the Internet becoming more popular, more companies are doing business over the web. In addition, a number of attempts to illegally infi...

Initially, there were not many threats to network security. With the Internet becoming more popular, more companies are doing business over the web. In addition, a number of attempts to illegally infiltrate networks have increased. As a result, the need to secure networks has grown. Firewalls were implemented on networks to prevent unauthorized access from external sources. Initially firewalls were complex & unreliable hardware devices. Most of the firewalls were routers that separate a private network from other networks. Over the years, firewalls have developed into highly reliable solutions. They protect networks from unauthorized access & play an important part in enforcing the security policy for a company. The firewall examines each packet of data that passes through it & allows the authorized data.

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