期刊名称：International Journal of Advanced Research In Computer Science and Software Engineering
印刷版ISSN：2277-6451
电子版ISSN：2277-128X
出版年度：2012
卷号：2
期号：8
出版社：S.S. Mishra
摘要：Network Security concerns with concept of designing a secured network is the most important task in any enterprise or organization development. Securing a network mainly involves applying policies and procedures to protect different network devices from unauthorized access. Servers such as web servers, file servers, mail servers, etc., are the important devices in a network. Therefore, securing these servers is the first and foremost step followed in every security implementation mechanism. Thispaperwork demonstrates the tasks needed to enhance the network security in Linux environment. The various security modules existing in Linux makes it different from other operating systems. we analyzing network packets using the most popular open source network protocol analyzer wire shark and on thebasis of analyzing the packet work has been done on writing the script to block/a llow the network traffic using ip firewall and after blocking traffic further capturing and analyzing of packets using wire shark.
关键词：Firewall; Linux; Network Security; wire shark; ip tables
