For Internet Explorer
:
To clear the cache; you would need to click on: ‘Tools’ >> ‘Internet Options’ >> ‘Delete Files’. This will bring up a popup box. Here check the option: ‘Delete all offline content’ then hit ‘Ok’ and then hit ‘Apply’ and ‘Ok’ on ‘Internet Options’ popup box.

For Netscape:
To clear the cache; you would need to click on: ‘Edit’ >> ‘Preference’ >> ‘Advanced’ >> ‘Cache’ >> ‘Clear Cache’. Then hit ‘Ok’.

We also request you to try out the following:
If you are accessing Site as http://yourdomain.com then try accessing it as http://www.yourdomain.com or vice versa.

Hypertext Transfer Protocol (http) is a system for transmitting and receiving information across the Internet. Http serves as a request and response procedure that all agents on the Internet follow so that information can be rapidly, easily, and accurately disseminated between servers, which hold information, and clients, who are trying to access it. Http is commonly used to access html pages, but other resources can be utilized as well through http. While exchanging confidential information with a server, which needs to be secured in order to prevent unauthorized access a client needs some sort of security which is provided by https, or secure http which allows authorization and secured transactions.

If you visit a website or webpage, and look at the address in the web browser, it will most likely begin with the following: http://. This means that the website is connected to your browser using the regular unsecure language, due to which there is a possiblilty for someone to spy on your computer’s conversation with the website. If you fill out a form on the website, someone might see the information you send to that site.

But if the web address begins with https://, that basically means your computer is talking to the website in a secure code that no one can spy on the information you fill in.

https is quite similar to http, because it follows the same basic protocols. The http or https client, such as a Web browser, establishes a connection to a server on a standard port. When a server receives a request, it returns a status and a message, which may contain the requested information or indicate an error if part of the process malfunctioned. Both systems use the same Uniform Resource Identifier (URI) scheme, so that resources can be universally identified. Use of https in a URI scheme rather than http indicates that an encrypted connection is desired.

When using an https connection, the server responds to the initial connection by offering a list of encryption methods it supports. In response, the client selects a connection method, and the client and server exchange certificates to authenticate their identities. After this is done, both parties exchange the encrypted information after ensuring that both are using the same key, and the connection is closed. In order to host https connections, a server must have a public key certificate, which embeds key information with a verification of the key owner’s identity. Most certificates are verified by a third party so that clients are assured that the key is secure.

Https is used in many situations, such as log-in pages for banking, forms, corporate log ons, and other applications in which data needs to be secure. However, if not implemented properly, https is not infallible, and therefore it is extremely important for end users to be wary about accepting questionable certificates and cautious with their personal information while using the Internet.

ActiveX controls are a set of rules for how applications should share information. An ActiveX control can be automatically downloaded and executed by a Web browser. Programmers can develop ActiveX controls in a variety of languages, including C, C++, Visual Basic, and Java.

ActiveX is not a programming language but sets of rules that guide the way applications run on windows. Many a times you may have come across web sites that sometimes ask you to download ActiveX controls in order to run some of their downloadable programs. ActiveX controls have full access to the Windows operating system. ActiveX controls aresimilar to Java applets but the access to the Windows OS gives them much more power than Java applets, But there is a risk involved with this power, the applet may damage software or data on your machine. As a result, Microsoft has developed a registration system so that browsers can identify and authenticate an ActiveX control before downloading it. Downloading these controls enters them in the Registry of the system but after a period, these controls are actually not needed by the system for those programs. But these controls are there taking up space and slowing down the system so these controls need to be cleaned out from the registry.

Working of ActiveX controls

When the browser loads a web page that has embedded ActiveX components, the browser uses the ‘CLASSID’ information on the Web page’s ‘OBJECT’ statement to ascertain if the control is already present on your system. If not, the browser uses the ‘CODEBASE’ information to download the control and install it. Once you are done with the download it lodges in the system registry. It is not actually needed here but is there all the time. Downloading a free registry cleaner to clean the registry is one way to solve this problem of clogging up the registry with unwanted controls.

Safe Usability

Many programmers started embedding ActiveX components in their programs and web pages. It should be noted that ActiveX controls are capable of doing anything a normal Visual Basic program can. In other words they can seem to be linking to some program but may be malicious software. A Registry cleaner will help remove the installation from the registry. Because you never know what the ActiveX control has been programmed to do.

Security measures to differentiate between necessary and unwanted controls

Microsoft has provided some measure of security for identifiable ActiveX controls. This is achieved through a signature scheme. Designers of ActiveX controls digitally sign the ActiveX controls they author. When the user accesses a web page that uses that particular control, the user’s browser can verify the person that has signed it wrote the control.

Dedicated IP address also known as static IP means that a website has its own separate IP address. Whether you type in your URL or the numeric form of its IP address, both will bring you to the same domain.

Shared IP address means that multiple websites share the same IP address. Web servers can determine by the domain entered in a user’s browser which website is being requested. Typing in the IP address will bring you to some kind of generic page instead of the specific site you want.

Generally, having a website on a shared IP address does not harm a website but a Dedicated IP address has it’s own use. A dedicated IP is needed for Anonymous FTP access, or for site having own Private SSL Certificate.

Another benefit of having a dedicated ip address is being able to access your site through the IP address directly. For example:

Dedicated IP account: 67.19.72.118

Shared IP account: 67.19.72.116/~youraccount

It is also believed that sites on a dedicated IP address are favoured more by the search engines over the sites on a shared IP but it’s just a myth. In most cases, this doesn’t affect sites on a shared IP. Dedicated IP hosting is required if you need to have some sort of special access to your website, like SSL or Anonymous FTP. If you have no special requirements, then a shared IP will work fine under most conditions.

When you connect your PC to the Internet either through cable, dial-up, or DSL connection, anyone can invade your PC, and encroach, spoil and destroy content on your PC. To prevent this from happening you should have a Firewall installed on your PC. A firewall when installed acts as a barrier between your PC and the outside world. It prevents unwanted and unauthorized access to your PC over your Internet connection.

Firewalls come in two basic forms:

Hardware firewalls - Hardware firewalls are a piece of hardware, like a PC, that gets installed between your PC and your Internet connection. Literally, a cable from your cable or DSL modem gets connected to the hardware firewall. Another cable is connected from the hardware firewall to your PC. When done, the hardware firewall acts as a barrier between your PC and the Internet. It lets you get out to the Internet, but it does not allow unauthorized access from the Internet to your PC. Many cable, DSL, and wireless routers/switches have firewalls built into them.

Software firewalls - A software firewall serves the same purpose as a hardware firewall. It, however, is software that gets installed directly onto your PC. The software monitors all inbound and outbound Internet traffic, and creates a software barrier between the Internet port into your PC and everything else on your PC. Once installed, it lets you get out to the Internet, but it does not allow unauthorized access from the Internet to your PC. Software firewalls have an advantage in that they can implement rigid controls over what software installed on your PC will be allowed to access the Internet.

Many people use both a hardware firewall and a software firewall. It is similar to having a fence to protect access to your yard, and then a front door to protect access to your house. Everyone should use at least one firewall, hardware or software. If you have a laptop, you should use a software firewall. That way the firewall goes with you, wherever you go, protecting your PC.