How does a firewall protect, Computer Networking

Assignment Help:

How Does a Firewall Protect

Firewalls work by controlling the information that comes in and out of the network. By using the Application Proxy service, the flow of information to the network can be controlled. A proxy is an application program that permits or forbids access by accepting or rejecting requests sent to it. Only valid users can log in and pass through a proxy service. It works on the Application level of the OSI model . Another technique that can be used is Encryption. A firewall may also combine encryption to provide confidentiality and authenticity. However this feature never works alone but is always combined with one of the above methods.


Related Discussions:- How does a firewall protect

What are the routing techniques, Q. What are the Routing Techniques? R...

Q. What are the Routing Techniques? Routing Routing Techniques Static versus Dynamic Routing Routing Table for classful Addressing Routing Table for Cl

What is ping, What is Ping? Ping is a utility program that permits you ...

What is Ping? Ping is a utility program that permits you to check connectivity among network devices on the network. You can ping a device by using its IP address or device nam

What is unacknowledged connectionless service, What is Unacknowledged conne...

What is Unacknowledged connectionless service This service is a datagram-style service. It is a very simple service that does not involve any of the flow- and error-control mec

What are the disadvantages of ospf protocol, Disadvantages of OSPF protocol...

Disadvantages of OSPF protocol i) Single Area ii) High Hardware Requirements iii) Troubleshooting

What is sap, What is SAP? Series of interface points that permit other ...

What is SAP? Series of interface points that permit other computers to interact with the other layers of network protocol stack is known as SAP.

Name the steps included in creating the checksum, List the steps included i...

List the steps included in creating the checksum. a. Separate the data into sections b. Add the sections together using 1's complement arithmetic c. Take the complement o

Explain the concept of fragmentation, Fragmentation - Wireless environm...

Fragmentation - Wireless environment is very noisy - Corrupt frames must be retransmitted - Large frames must be divided into smaller ones to increase efficiency

Sockets, When programming a server or a client, we have to deal with port n...

When programming a server or a client, we have to deal with port numbers and IP addresses, but we usually do this through an abstraction called a socket. Sockets are the standard A

Network infrastructure upgrade, Network Infrastructure: This project will r...

Network Infrastructure: This project will require replacement of major networking components throughout the office. Virtualization will result in increased speed and reliability fo

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd