In this module we will look at a typical setup file used to configure iptables on a Linux system and the tools to verify that the system is properly secure and operational.
There are a variety of ways to configure a Linux computer to either accept or deny connections from other computers. The IPTables program operates inside the kernel to filter data at the IP protocol layer as well as the UDP and TCP layers. We will look at the configuration files used as well as the different options available to block or allow requests.
Broad coverage of technology concepts underlying modern computing and information management. Topics include computer architecture and operating systems, relational database systems, graphical user interfaces, networks, client/server systems, enterprise applications, cryptography, and the web. Hands-on exposure to internet services, Microsoft Access database management system, and Lotus Notes. Information Technology I helps students understand technical concepts underlying current and future developments in information technology. There will be a special emphasis on networks and distributed computing. Students will also gain some hands-on exposure to powerful, high-level tools for making computers do amazing things, without the need for conventional programming languages. Since 15.564 is an introductory course, no knowledge of how computers work or are programmed is assumed.
IP Filters that are typically used in hardware routers operate at the IP layer. These filters typically are too coarse to allow for control of applications and systems to keep them safe. The IPTable application operates at a higher level by filtering TCP
