Network security mainly includes system security, network security, information dissemination security, and information content security. The details are as follows:
1. System security
Operating system security means ensuring the security of the information processing and transmission system. Focus on ensuring the normal operation of the system. Avoid damage and loss to messages stored, processed and transmitted by the system due to system collapse and damage. Avoid information leakage due to electromagnetic leakage, interfering with others or being interfered by others. (Recommended learning: web front-end video tutorial)
2. Network security
The security of system information on the network, including user password authentication, User access rights control, data access rights, method control, security audit. Safety issues follow. Computer virus prevention, data encryption, etc.
3. Information dissemination security
The security of information dissemination on the Internet refers to the safety of the consequences of information dissemination, including information filtering, etc. It focuses on preventing and controlling the consequences of the dissemination of illegal and harmful information, and avoiding the loss of control of information freely transmitted on public networks.
4. Information content security
The security of information content on the Internet focuses on protecting the confidentiality, authenticity and integrity of information. Prevent attackers from exploiting system security vulnerabilities to conduct eavesdropping, impersonation, fraud, and other behaviors that are detrimental to legitimate users. Its essence is to protect the interests and privacy of users.
Tools for maintaining network security include VIEID, digital certificates, digital signatures, and local or cloud-based anti-virus software.
1. Internet Firewall
It can enhance the security of the organization’s internal network. Internet firewalls manage access between the Internet and the organization's internal network. Without a firewall, each node on the internal network is exposed to other hosts on the Internet and is extremely vulnerable to attacks. This means that the security of the internal network is determined by the strength of each host, and is as secure as the weakest system among them.
2, VIEID
In this network ecosystem, each network user can trust each other’s identity, and network users can also choose whether to have electronic identification. . In addition to increasing network security, electronic identification can also allow network users to create and apply more trusted virtual identities, allowing network users to remember less or even no need to remember those annoying passwords.
3. Digital certificate
The CA center adopts digital certificate authentication technology with digital encryption technology as the core. Through digital certificates, the CA center can Various types of transmitted information undergo various processing such as encryption, decryption, digital signature and signature authentication. It also ensures that the digital transmission process will not be invaded by criminals, or even if it is invaded, the contents will not be viewable.
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