How to restrict the LAN, how to control the LAN in the computer to restrict the user s access to the

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A local area network is usually a network system that is distributed over a limited geographical area, generally involving a geographical area of only a few kilometers. The LAN is very dedicated and has a relatively stable and standardized topology.

By controlling the local area network, users are restricted from accessing the www extranet, which some companies want to improve the efficiency of their employees.

One of the methods used will also be used by some families, how to operate? Now I'll take you to study with you.

Method 1: 1. Open Internet Options, switch to the Content tab, and click the Home Safety button;

2. Select or create the account you want to monitor;

3. You can set the restriction policy for the current user, take setting the access network parameters as an example, and click on the network filter;

4. In the network filter, check Only access to the ** I allow, and click Allow or Block Specific**;

5. Finally, in the ** interface that opens, enter the ** you want to allow or disable**, and click the allow or block button.

2. Install and run this tool, click the Configure Policy button from the main interface of the program that opens, and click the New Policy button from the pop-up policy management interface to create a new policy;

3. From the policy interface that opens, switch to the Network Restrictions tab, check the Enable www access restriction item, and then check the Prohibit access to www item to restrict access to the Internet, or you can access the LAN computer access to the Internet according to the rules;

4. After the corresponding policy is completed, click the Enable Monitoring button, and all networked computers in the current LAN will be automatically listed.

5. If you want to restrict access to www Internet for a certain computer, you only need to right-click on the corresponding computer and select the selected host assignment policy item from its right-click menu;

Added: LAN,Campus NetworkSafety maintenance methods

The campus network is divided into intranets.

and the extranet, that is, they can go to the school's intranet or the Internet at the same time, university students usually have to play games and shop, and the school itself has its own server to maintain;

In the general environment, first of all, firewall equipment needs to be set up between the campus network and its Internet access to prevent external attacks, and it should be updated frequently to resist external attacks.

In order to protect the security of all users of the campus network, we need to strengthen the security, in addition to the firewall, we should also add anti-virus intrusion detection equipment such as IPS and IDS to analyze and detect external data to ensure the security of the campus network;

Because some students' computers may be taken home or infected outside, VLAN isolation should be set on the internal core switch, and security equipment should be attached to the port to detect and protect the port;

There may be DDoS attacks or ARP viruses on the intranet, so we need to install anti-virus software on servers or computers, especially school server systems, etc., to protect the security of important computers.

It is generally not recommended to do restrictions on computers.

External network access is controlled at network exits, such as firewalls, routers, and online behavior management devices. Internet access policies can be configured.