we have to design a firewall for a company where this system has foll... features: 1)list of blocked sites (it should block people from accessing these sites) 2)list of accepted sites 3)should monitor data packets comin in and out of the organisation please suggest tools that can be used to design firewall systems and some source on the internet where we can get those tools. and please help us on how to get along with this project. ....etc

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No one could have ever imagined that the immense potential and benefits of creating and using small as well as large networks would also come packed with a hidden factor which would make the network highly vulnerable to the outside world and its miscreants. Networks and the Internet are rapidly expanding sectors of the computing market. Many companies, organizations, and indeed individuals have installed such systems without realizing the risks they are running. This paper examines those risks and their solutions. Since the advent of the Inter ....etc

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Abstract—The pervasive adoption of IEEE 802.11 radios in the past decade has made possible for the easy Internet access from a vehicle, notably drive-thru Internet. Originally designed for the static indoor applications, the throughput performance of IEEE 802.11 in the outdoor vehicular environment is, however, still unclear especially when a large number of fast-moving users transmitting simultaneously. In this paper, we investigate the performance of IEEE 802.11 DCF in the highly mobile vehicular networks. We first propose a simple yet accu ....etc

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The Firewalls and Internet Security seminar defines three basic types of firewalls: packet filters, circuit level gateways, and application gateways. Of course there are also hybrid firewalls, which can be combinations of all three.
Packet filter gateways are usually comprised of a series of simple checks based on the source and destination IP address and ports. They are very simple to the user since it will probably not even realize that the checks are taking place (unless of course it was denied!!). However, that simplicity is also their bi ....etc

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Z-MAC: A Hybrid MAC for Wireless Sensor Networks

Presented By:-
Subodh Kumar Gond
Roll. No. 08EC6415
M.Tech. 1st Year
Telecommunication System Engineering


Introduction

What is MAC
-Controlling access to the channel
What is Z-MAC

- A Hybrid MAC which Combine the strengths of CSMA and TDMA while offsetting their weakness.

- The main feature of Z-MAC is its adaptability to the level of contention in the network .

CSMA (Carrier Sense Multiple Access)
¢ ....etc

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sir
i am the student of M.tech.and i am working on wireless sensor network MAC protocols.
please send me the MATLAB coding for average packet latency in T-MAC and S-MAC protocols.on my mail id...([email protected]).

Anjali Varshney ....etc

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Definition
Computers and Networking have become inseparable by now. A number of confidential transactions occur every second and today computers are used mostly for transmission rather than processing of data. So Network Security is needed to prevent hacking of data and to provide authenticated data transfer. Network Security can be achieved by Firewall. Conventional firewalls rely on the notions of restricted topology and controlled entry points to function. Restricting the network topology, difficulty in filtering of certain protocols, End-t ....etc

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Firewalls

The Firewalls and Internet Security seminar defines three basic types of firewalls: packet filters, circuit level gateways, and application gateways. Of course there are also hybrid firewalls, which can be combinations of all three. Packet filter gateways are usually comprised of a series of simple checks based on the source and destination IP address and ports. They are very simple to the user since it will probably not even realize that the checks are taking place (unless of course it w ....etc

[:=Read Full Message Here=:]

No one could have ever imagined that the immense potential and benefits of creating and using small as well as large networks would also come packed with a hidden factor which would make the network highly vulnerable to the outside world and its miscreants.
Networks and the Internet are rapidly expanding sectors of the computing market. Many companies, organizations, and indeed individuals have installed such systems without realizing the risks they are running. This paper examines those risks and their solutions.
Since the advent of the Inte ....etc

[:=Read Full Message Here=:]

sir...
please send me the MATLAB code for energy consumption in S-MAC and Token BAsed MAC Protocol. on my mail id ([email protected])


Anjali Varshney ....etc

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