At present, the network is widely used in various departments of construction enterprises to improve the work efficiency of construction enterprises. However, there are still some problems that threaten network security, such as operating equipment, network structure and network applications. Finding problems and proposing solutions is an effective way to ensure the network security of construction enterprises.
1 Network Security Overview
The software and hardware of the network system are not destroyed, the data in the system are not destroyed by malicious attacks, and the data security and the normal operation of the system are guaranteed. This is the so-called network security. Network security has the characteristics of integrity, confidentiality, auditability and controllability. Therefore, we should use the characteristics of network security to serve construction enterprises. As the symbol of enterprise informatization, network management plays an important role in construction enterprises. It can not only ensure the informatization management of construction projects and the smooth completion of projects, but also improve work efficiency and increase the economic benefits of enterprises.
2 problems in network security of construction enterprises
2. 1 Network paralysis caused by poor running hardware.
Computer hardware mainly consists of five parts: controller, arithmetic unit, input device, output device and memory. These physical devices constitute the material basis of the computer, and are the premise of the operation of computer software. Software mainly refers to documents and programs in computer systems. Computer software mainly includes programming language processing system, media tool software, operating system and image tool software. Among them, operating system is an important software. Operating system is not only the interface between computer and user, but also the interface between computer software and hardware. It does not require users to do specific operations. The operating system exists when the computer is installed. It directly manages and controls the resources of the software and hardware systems. For the setting of the operating system, the most important consideration is the convenience of operation, while the security is less. When installing the operating system, some systems need to be turned on, and the security risks will be highlighted. This security risk is an invisible threat, which is not easy to be detected. If accumulated to a certain extent, it is easy to cause problems such as network crash and inability to continue visiting web pages. Construction enterprises need network to carry out auxiliary work such as engineering calculation. Once the network is down, it will affect the work process of the enterprise.
2.2 Network structural vulnerabilities lead to attacks and intrusions.
Network structure is the overall design concept of communication system with reference to open system interconnection, and it is a complex structural system. Usually, an enterprise network is connected with an external network. Construction enterprises have many departments, wide network coverage and wide applications. So the risks and threats are also great. Many intruders use the defects of external network structure to invade the internal network structure of enterprises and carry out some illegal activities. Once the external network structure is attacked, the networks of all units connected with it are in danger of being invaded. Managers of many enterprises lack awareness of prevention, office systems are not equipped with security protection software, security measures are not in place, and some lawless elements use the loopholes in the internal network structure of enterprises to invade and attack, resulting in the failure of enterprise computers to work normally. As long as one computer inside the enterprise is invaded, other computers will be affected, and all kinds of information and data of the enterprise can be easily stolen, which is not conducive to the safety management of the enterprise. Now the proportion of enterprises being hacked is getting higher and higher. Enterprises should strengthen the security protection of internal network structure to ensure the security of network structure from the source.
2.3 improper network application leads to information leakage.
A web application is an application that is run by using a web browser. To develop network applications, we must first have some basic knowledge of computer applications, master the basic principles of computer work and relevant knowledge of network security. Only in this way can we make good use of the network and create greater value for enterprises. Especially for construction enterprises, all kinds of engineering materials, data and customer information are very important, which is related to the sustainable development of enterprises. However, there are always some risks in the process of network application. For example, in the process of data transmission, if employees operate improperly, it is easy to cause data leakage or tampering. Network viruses spread quickly and do great harm. Someone put a virus on the network, which caused the computer to crash, resulting in file loss and information leakage. These improper network applications will bring adverse effects to enterprises. Therefore, in order to ensure the information security of construction enterprises, we must do a good job in the security protection of network application systems and prevent information leakage.
3 technical measures to enhance the network security of construction enterprises
3. 1 Strictly install procedures and improve hardware facilities.
If construction enterprises want to operate normally, they must ensure the network security of enterprises. Network security is not only the security of a single point, but also the security of the whole information network. This requires enterprises to start from the source of computer operating hardware, improve hardware facilities and reduce the risks brought by operating hardware. The physical equipment of the computer is the foundation, so it should be checked before installation to ensure the integrity of the hardware equipment. It is necessary to improve the configuration of computers, especially in construction enterprises. Enterprise information is highly confidential, and once it is leaked, it will have a huge impact. Do not open all systems used during the installation of the operating system, which may easily lead to security problems. Just turn on the required software system. This avoids unnecessary risk loopholes. Computer installation is an important work, which is related to the operation of the whole enterprise network. We must strictly control quality and procedures and control risks from the source. Strengthening the software and hardware system can effectively avoid network paralysis caused by low equipment configuration, prevent hacker attacks and ensure efficient network operation.
3.2 Establish access control to prevent attacks and intrusions.
Hacking attack has become an important factor threatening the development of construction enterprises. Network hackers find loopholes and defects in enterprise networks and attack them. Simple host protection technology can only ensure the security of the host itself and cannot provide services for the whole network. It is necessary to establish a network access control mechanism to restrict access conditions, prevent attacks and intrusions, and ensure the safety of the entire network system of the enterprise. Network access control technology is a dynamic process, which is realized by implementing network access. The specific operation flow is that when the host needs to access the internal network structure of the enterprise, the access control system will conduct corresponding security checks on the host. If the check passes, it can enter the internal network system of the enterprise, and even if it enters the enterprise network system, it needs to be checked again. After many inspections, the security of the host computer has been greatly improved. If the inspection is unqualified, it will be isolated by the system, and the user will be prompted with corresponding information for the user to reflect. You can also introduce a firewall, which is a widely used network security device with strong anti-attack, and can strictly control network information according to the needs of enterprises. Firewall has different protection levels, so you can choose the corresponding protection level according to your own needs. These methods can not only ensure the security and reliability of the host, reduce network security incidents, but also enhance the security of the entire network of the enterprise.
3.3 Introduction of detection system to strengthen information security.
Intrusion detection system is a kind of network security protection equipment that can actively monitor network transmission information and take timely measures when suspicious transmission is found. Real-time and reliable, it is a very practical safety protection technology. Intrusion detection system has many filters, which can be used for identification and interception. When an attack occurs, the filter of the intrusion detection system will play a role in classifying and checking various data packets. After the security is determined, the packet will move on. Unidentified packets need further inspection. Through layer-by-layer screening and inspection, the security of data packets is ensured. Information security of construction enterprises is extremely important. In order to prevent information leakage, intrusion detection system must be introduced. In addition, it is good to ban some unnecessary services and open more systems, but there are also disadvantages and risks. It is necessary to comprehensively consider, prohibit unnecessary services, and reduce the network risk of construction enterprises.
4 conclusion
Network security management of construction enterprises is the guarantee for the healthy development of enterprises. In view of the problems existing in the current network development, it is necessary to strictly control installation procedures, improve hardware facilities, establish access control, prevent attacks and intrusions, introduce detection systems, and strengthen information security. By taking various measures to strengthen the network security of construction enterprises, the sustainable development of enterprises can be guaranteed.
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