By analyzing queries in search engines dedicated to blocking inappropriate content on the World Wide Web, we can identify a tendency that today users are increasingly interested in means and methods of blocking access to a particular resource on the Internet. How to restrict access to the site is an urgent issue both for system engineers and administrators of large companies, and for home users. The former block access to resources that reduce labor productivity, are third-party and do not belong to the scope of the enterprise. For the second, the priority is the restriction of access to certain sites to ensure the safety of their households (especially children of preschool and school age).
Almost everyone who decides to prohibit access to sites in the "virtual space" is faced with the same resources. In the first place are sites of erotic content, followed by online games, virtual casinos, social networks, dating sites, chat rooms. In addition, they block websites promoting violence, talking about weapons, drugs, etc.
How to block access to sites effectively, efficiently and without disrupting the operation of other resources and programs on the computer? First you need to decide how the lock will be implemented, and therefore it is important to consider which audience the access ban applies to. If at home you want to protect your four-year-old son from unwanted content that he can randomly access through a search engine, this is one task, the implementation of which does not require special software. However, how to deny access to the site, if other users of this computer are no less experienced "experts"? In such a situation, you have to resort to special programs like a firewall or a specialized filter.
The first and most simple method of blocking inappropriate content is to specify the addresses of malicious sites in the hosts file of the Windows operating system. In order to find this file, just go to the operating system installation directory (folder), find the system32 directory, then drivers, etc. You can open the file using notepad. After many comments in the file, you will find a line with the IP address 127.0.0.1. Adding a site name with a malicious information resource every time from a new line after this code , it is easy to block access to all undesirable resources without resorting to additional programs.
Some users are interested in how to block access to the site through a browser. This procedure is also very simple, but it is effective only if there is only one browser on the computer. It is noteworthy that this method of blocking cannot be targeted at advanced users, because You can change browser settings under an account not only with administrator rights, but also with restrictions and even with "guest" rights. Therefore, the best option for blocking content is through special programs where you can set the mask to prohibit the opening of certain resources not only by IP address, but also by the presence of certain keywords in the name. In addition, such programs contain a security module, and therefore, settings can be changed only after entering the password. It is noteworthy that a number of such programs also do not allow the removal of filters from the computer without entering a password, which ensures 100% invulnerability of the system of protection against inappropriate content.
In conclusion, we note that the choice of a functional solution, how to prohibit access to the site, of course, depends on the network administrator, user skills, audience, but in any case it is important to choose a system that will completely restrict access to the selected network resources.