Keywords: computer network; Safety management; Daily maintenance; computer technology
1 Introduction to Computer Network Security
With the continuous development of computer network, computers have been widely used in people's work, life, study and many other aspects. The security of computer network has become a common concern in modern society. The so-called computer network security refers to ensuring the security of computer network information, not being leaked, and providing more scientific network services. The security of the network system can ensure the integrity and scientificity of the system.
2. The main reasons that threaten computer network security
At present, there are three main reasons that affect the security of computer networks in China:
2. 1 Personal unintentional behavior, affecting computer network security.
Personal unintentional behavior affects computer network security, which mainly includes: lack of understanding of network system and ideological defects. The computer network system is stolen due to man-made unintentional behavior, or the internal files of the system are destroyed, or the system is disturbed by external electromagnetic waves, resulting in the disorder of the system. In order to ensure the security of computer network, it is necessary to install high-availability hardware facilities and software facilities, install system alarm system, and improve personal safety awareness. These network security risks can be effectively avoided by ensuring that personal behavior does not deviate, doing a good job in system backup and installation, and improving personal network system security awareness.
2.2 individuals deliberately attack the computer network.
The behavior of individuals deliberately attacking computer systems to destroy network security systems is also an important reason that affects network security now. One of the most common forms is to spread viruses by e-mail. Attackers spread a lot of spam and virus programs through e-mail. Cause the party receiving the email to collapse or the network speed to be seriously damaged, even cause the system to slow down because it can't work normally, and even cause the whole system to be paralyzed. This way of attacking network system security is very simple and common, with the characteristics of fast speed and remarkable effect. Computer viruses are destructive, spread faster and can replicate themselves. Therefore, users are advised to install a real-time virus monitoring software and scan it regularly.
2.3 defects of the computer network software system itself
In addition to the above two forms, the threat to computer network security is also due to the defects of computer network software system itself. The reason why network security is threatened is mainly because there are loopholes in the software of computer network system, so it is an important way to solve the problem of computer network security being threatened in time. For example, when designing and programming the network and TCP/IP protocol, the security problem was not put in an important position, but the main design was to improve the connectivity and speed of the network system. Nowadays, with the wide application of TCP/IP protocol, there are many defects in the protocol of computer system itself, which leads to many loopholes in network security. Computer network security is not a purely technical problem, it includes many aspects. Therefore, it is not a simple matter to improve the security performance of computer networks. How to improve the security performance of the network system and how to maintain the network security system need to be explored continuously.
Three main methods of maintaining network security
3. 1 Improve the network system and improve the standardization of computer network management.
In order to constantly improve the network information security management system and deal with sudden network security accidents, we must formulate corresponding management measures in advance, clarify each processing step, and truly implement network security protection technology. It is necessary to strengthen the security management of every website and highly confidential website. Every safety management system should be updated in time. It mainly includes: establishing the management and control system of computer room personnel, managing computer networks and related equipment on a regular basis, and setting up corresponding accident handling systems. Strengthen the maintenance of system storage equipment, regularly destroy outdated software management systems, replace key systems and information at any time, and formulate emergency handling systems.
3.2 Pay attention to the cultivation of network security awareness
Network security should be an important part of daily computer management. Improve the safety management awareness of each computer network administrator, improve the accumulation of their safety knowledge, attach importance to their network safety education, especially in the daily maintenance of computers, and integrate network safety awareness into them to ensure the normal development and implementation of various network information safety management.
3.3 Create management methods to prevent network attacks.
Create management methods to prevent network attacks. We should take preventive measures in advance. Take corresponding management measures according to the way and specific situation of the network being attacked. The main management methods are: scanning in advance and preventing new information; Do a good job in the overall prevention of attacks; Formulate preventive measures against web attacks; And prevent distributed denial of service attacks. These methods are based on system scanning software and detection system to carry out prevention work, scan the potentially threatening content, and truly prevent in advance.
3.4 Regularly check and update the safety of the system.
In order to ensure the security of computer network, the most important thing is to carry out regular security detection and system update. It is necessary to regularly detect loopholes and Trojans in the system, give regular physical examinations to the computer, and update the software in time to improve the security performance of the system.
4 conclusion
The security of computer network system has an important relationship with the normal operation of computer, which needs scientific maintenance. How to ensure the security of the system is an important issue for the future development of computer networks. With the continuous improvement of computer technology, network virus and hacker attack technology are also developing, which poses a great threat to computer network security. This requires computer network managers to constantly repair vulnerabilities, update system software and hardware in time, and minimize the harm in the process of daily maintenance and repair.
References:
[1] Xu Baoning. Analysis on Maintaining Enterprise Network Security [J]. Computer Application, 2006, 9.
[2] Liu. Daily maintenance of network security [J]. Go boating in Shanghai, 2005, 8(22).
[3] Yang Ye. On website security management [J]. Computer and Telecommunications, 2006, (1 1).
[4] Gao Meirong. Website security management strategy [J]. Software Guide, 20 10, (05).
Author: Cai Ding Setting: Chengnan Hospital, Yancheng City, Jiangsu Province