Computer Network Security

With the continuous development of the times, computers play an increasingly important role in our lives. Computer network technology brings a lot of convenience to people's daily life and work, and computer network technology is widely used in various fields. But in the context of big data, there are still many shortcomings.Bentley ProjectWise Due to data leakage, it directly threatens the security of computer networks, which has a great impact on the reputation of various industries and also leads to the loss of units and personal property.Bentley BIM In order to ensure the security of the computer network and build a safe computer network environment for people, it is necessary to solve the current security problems in the application of computer networks in a timely manner, and prevent problems before they occur.

Computer through network security refers to the use of enterprise network resource management cost control and technology development measures to ensure that the confidentiality, integrity and availability of data in a social network economic environment is protected by law. Computer through network security issues include two important aspects of physical security and logical security. Physical security refers to the physical protection of system equipment and related infrastructure from damage, loss, etc.. Logical security includes the integrity, confidentiality and availability of personal information.

There are many factors that lead to the insecurity of computer information, including human factors, natural factors and accidental factors. The human factor is that some Down Acts take advantage of the loopholes in the computer network, or sneak into the computer room to steal computer system resources, illegally obtain important data,BIM Viewer tamper with system data, destroy hardware, and write computer viruses. Human factor is the biggest threat to the security of computer information network.

The Internet is an open network for the whole world. Any unit or individual can easily transmit and obtain all kinds of information on the Internet. The characteristics of the Internet, such as openness, sharing and internationality, have challenged the security of computer networks. The main insecurity factors of the Internet are as follows.

(1) Openness of the network

The technology of the network is completely open, which makes the network face attacks from many sources. Either attacks from physical transmission lines, attacks on network communication protocols, and attacks on computer hardware and software vulnerabilities.

(2) The international nature of the network

It means that attacks on networks come not only from users of local networks, but also from hackers from other countries on the Internet. Therefore, network security faces the challenge of internationalization.

(3) Freedom of Networks

Most of the networks do not have technical constraints on the process of user's use, user management can be free to access the Internet, publish and obtain all kinds of data and information.

In order to ensure our own safety in today's computer virtual world, we can do the following.

(1) Utilize virtual network technology to guard against intrusion means based on network monitoring.

(2) Use firewalls to protect the network from hacker attacks.

(3) Use virus protection technology to prevent and check viruses.

(4) The use of network intrusion detection information technology development to provide a real-time intrusion detection and to take the appropriate means of protection.

(5) Security scanning technology provides strong support for the discovery of network security vulnerabilities.

(6) The use of authentication and digital signature technology. Authentication technology is used to solve the problem of identification of both parties in network communication, and digital signature technology is used to realize the requirement of non-repudiation in communication.

(7) Use of VPN technology. We refer to a private network realized using a public network as a virtual private network VPN.

(8) Use of application system security technology to ensure the security of application platforms such as e-mail and operating systems.

Freedom of Networks network computers

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