Using internet and using Proxy are somewhat now related to each other.  A Proxy is a Web page that allows you to go through the blocked sites. Many times many of the sites are blocked for some reasons, if you want to view such sites, Proxy is the best option. The Filters block the sites, Sites such as Youtube, My Space, Orkut etc. Usually such sites are blocked at the workplace, so this is the right place to use Proxy.

Proxy actually mask your identity to be passed on through the server, so it protects your identity and personal information from getting exposed to wrong people. It is obvious that when you visit any website , your computer is subjected to snooping through the spy ware. It is also possible that you cookies are set to your computer without your awareness, information can be easily passed onto others and may be a threat to your data as well as computer, they may hack your computer and Spy your personal activities. It can cause you a Great loss in Financial and personal aspects.

Proxy can also be used to hide the content on the webpage you are viewing and the activity on the page. It is as good as invisible to the page you are viewing it mostly over the blocked content. Using such Proxy is very simple, Searching for proxy on the internet, choose any appropriate and identify your needs and take a decision on using it.

This proxy site will sit between you and the internet. There are many types in this proxy as well. Some allow you to view the whole site while others only a small portion of it. Proxy will load you the page you wish to visit. Proxy is now very common in use with internet, people have there intention in using the Proxy.

Most important is you should be able to find the appropriate proxy for your use. The best way of getting it is to make a search and browse various websites that out forward proxy access. You might have to try few sites before finalizing the best proxy for yourself. Try to use every where you face problem in viewing the content on the webpage.

Site which are blocked may be for the reason of the security also, you should make sure that viewing the sites through proxy will not harm your computer. You shouldn’t think that you being invisible through proxy will hide you from every one. There are some other ways through which somebody can monitor your activities. So it is better that you understand that you are not completely invisible, Proxies are just the way to access certain block of crucial information.

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A server is a computer or simply a device which manages the network resources. There are many types of servers. normally servers are dedicated, means they perform only the work fir which it is meant for, and it performs no other tasks. A computer can perform many tasks at once , a server refer to the program that manages resources for the clients.

Server platform:
This term is very often used with the Operating system. It is the hardware or software for the system. It an be said as the Engine that drives the server.

Server Types:

Applications Servers:

This type of server is widely used and it is a mediater between database and the end users.This is actually a middleware. Middleware is a software that connects two seperate applications.It is sometimes called as plumbing. such common middle ware categories contains:
TP Monitors
DCE Environments
RPC Systems
Object Request Broker (ORBs).
Database access systems
Message Passing

Audio and Video Servers:
This servers supports for online streaming for the websites. Streaming means transfering data such that it can be processed steady and continous stream. Such streaming techmologies are widely growing and gaining importance.

Chat Servers:
This enables large number of data exchange on the internet, it offers real time disscussion capabilities. Real time refers to the events that are simulated by a computer at the same speed that it would occur in real life.

Fax servers:
This type of servers were introduced toreduce the load on inoming and outgoing telephone resources. Big organizations need a dedicated FAX server.

FTP Server:
This servers is one of the oldest form of the service and the most primary ones. File transfer protocol makes it possible to move the files between computers securely.

Groupware Servers:
This type of server is used for user collabration by a software on this server.It works regardless of the location.

IRC Server:
This is a good option for the people those seek real time disscussion capability. the Internet relay chats consists of the various networks of the servers that allow the users to connect to each other via an IRC network.

List Server:
mailing list are managed by this server.It includes interactive discussion or one way lists that contain announcements,newsletter or advertising.

News Server:
It acts as the centralised distribution source for the thousand of public news group which is accessed over the USENET new netrwork.

Proxy Server:
This type of server is an intermediate between client and the external server. It filters the request and improves the importance and also share the connections.

Telnet Server:
This server enables users to log to the host computers and perfor tasks as if they were local.

Web Server:
Web server is responsible to serve the static content to the web browser by loading the files from the disk to the web browser. This contains a large amount of data exchange. This exchange between browser and the server uses HTTP.

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A firewall is software written for the purpose of securing your computer from the threats like hacking, Viruses and worms that try to enter your system from the network. Using firewall is the first step to make your system secured. It is the device or set of devices which is configured to either permit or deny , encrypt and decrypt the traffic  between the domain in regards to the security rules set.

Please always turn ON your firewall before connecting to the internet.

A Firewall can be software, hardware or combination of both.

There are several types of firewall techniques:

1.       Packet filter Firewall: In this firewall, each packet coming to or leaving the network is monitored and decision is taken whether to accept or deny based on the rules set. This technique is very effective and well appreciated, however it is somewhat difficult to configure.

2.       Stateful firewall: This firewall is similar to packet filter firewall, however it is more intelligent in tracking the connections which are active. Configuring rues is easy and in deeper way.

3.       Application Gateway Firewall:  This technique is useful in some applications such as Telnet servers and FTP Servers. This firewall can bring performance degradation to the network.

4.       Circuit Level Gateway: This firewall is activated only when TCP or UDP connection is made. Once the connection is established the packets can traverse in the network without further filtering process.

5.       Proxy server: This is widely used in an enterprise. It checks each an every packet in the network. The proxy server also hides the network address

Basic way the Firewall is configured.

A firewall can be configured in either of the two basic ways given below.

Default Deny: The firewall lists the network services that are allowed and every thing else is denied.

Default Allow: The Firewall lists the network services which are not allowed and every thing else is allowed.

Need of firewall:

If the computer is not secured with the firewall and connected to the internet. The hackers can easily gain access to your system and exploit with your system The intruder can install code on your system that destroys files or may do some malfunctioning. This is firewall helps you out, It screen outs many kind of malicious traffic before it reaches the system.

Only firewall doesn’t make your system completely secure. This is base line securing your system. You should install additional security measures. Antivirus software is a good for your system

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