Network security strategy models and applications

Network security, as an important part of information security, has become a major problem in the development of the current world Internet. In this context, network security strategies have become the foundation and key to achieving network security. This article will discuss the patterns and applications of network security strategies.

1. Network security policy model

1.1 "Blacklist" mechanism

The "blacklist" mechanism is to define a list of people who are not allowed to access in the system, with the help of Firewalls or other network security devices control network resources and immediately prohibit access to IP addresses in the blacklist when an access request occurs, thereby ensuring network security. This strategy is simple and easy to implement, but it can easily harm good people. For example, the IP address making the request is not an attack tool used by hackers, but the account of an internal employee of the enterprise. If it is banned, it will affect normal work and cause certain economic losses. .

1.2 "Whitelist" mechanism

Different from the "blacklist" mechanism, the whitelist lists all legal access objects and only allows users on the list to operate. This strategy is more strict than the blacklist, preventing illegal users from entering the system at all. However, this strategy also has greater requirements on management labor costs and maintenance time.

1.3 Mixed mode

Mixed mode combines "blacklist" and "whitelist" to only allow the operation objects in the list to perform legal operations, and when the system detects an unknown IP request It can also be shielded in time to prevent the enemy from taking the upper hand in the first attack, thereby improving security.

2. Application of network security policies

2.1 Strengthen user management

For enterprises, network security is not only to prevent external hacker attacks, but also includes the safety of internal employees. Hidden danger. Therefore, companies must strengthen the management of employee accounts, such as stipulating password rules, not disclosing passwords to others at will, and changing passwords regularly. At the same time, the distribution of permissions should also be clear to avoid unauthorized operations.

2.2 Policy restrictions

In order to ensure the stability and security of the network system, enterprises should intelligently restrict employees' behavior to prevent employees from performing illegal operations, such as prohibiting the use of external storage such as USB flash drives. equipment, it is prohibited to download unauthorized software, etc.

2.3 Anti-virus attacks

Since virus attacks are a part of network security that cannot be ignored, enterprises need to install anti-virus software on their computers and update and scan them regularly to ensure While network security also protects server security.

2.4 Multi-level security system

A multi-level security system can fully ensure the network security of an enterprise. This strategy can be implemented by implementing multiple authentications, strengthening technical prevention, and implementing safe encryption. This ensures the security of enterprise data transmitted over the network.

3. Conclusion

Network security strategy is a complex and diverse issue. Enterprises should implement multiple protections, establish multiple security protection mechanisms, and ensure continuous protection of enterprise network security through reasonable security policy settings. At the same time, we also need to pay attention to network security trends and dynamics and make timely responses and upgrades.

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