1. Computer basics
Knowing the basic knowledge of computer hardware, software, operating system and network structure can help you better understand the concept and technology of network security.
2. Basic knowledge of network
Understanding the network structure, protocols, services and security issues can help you better solve the principles and technologies of network security.
3. Basic safety knowledge
Understanding the concept, principle, threats and attack methods of security can help you better understand the significance and necessity of network security.
Second, the network security technology
1. Network security protection technology
Network security defense technology refers to the technology to protect the network from attacks and intrusions, including defense firewall, intrusion detection and defense system, antivirus software patches and loopholes.
2. Network security attack technology
Network security attack technology refers to the technology of using loopholes, loopholes and defects to attack and invade the network, including Trojan horse, silkworm worm, virus, DoS and so on.
3. Network security penetration testing technology
Network security penetration testing technology refers to a powerful and effective technology to simulate the behavior of attackers and test network security protection measures, including information collection, deletion, disclosure, privilege promotion, data disclosure and so on.
Third, network security tools.
1. Network security protection tools
Network security protection tools refer to software and hardware devices used to protect network security, including firewalls, IDS/IPS, antivirus software, VPN, etc.
2. Network security attack tools
Network security attack tools refer to software and hardware devices used for network attack and access, including Nmap, Metasploit, Aircrack-ng, etc.
3. Network security penetration tools
Network security penetration testing tool is used to test the software and hardware equipment of network security protection guidance, including Nessus, Burp Suite, Kali Linux, etc.
Fourth, implement network security.
1. Network security policy formulation
Network security policy refers to a series of rules, implementation and procedures formulated to protect network security, including password policy, network access control and emergency response plan.
2. Network security incident response
Network security incident response refers to taking a series of actions to protect network security after discovering network security incidents, including incident analysis, data repair and security guarantee.
3. Network security training and publicity
Network security training and publicity refers to the activities of guiding employees and users to provide network security knowledge and skills training, as well as publicizing network security policies and exhibitions.
Verb (abbreviation of verb) The future development trend of network security
1. Application of Artificial Intelligence and Machine Learning in Network Security
Artificial intelligence and machine learning can help network security practitioners to better discover and respond to network attacks and improve the efficiency and accuracy of network security protection.
2. The development and application of cloud security
With the popularization and application of cloud computing technology, cloud security will become one of the important areas of network security, which needs continuous development and innovation.
3. The application of blockchain technology in network security
Blockchain technology can provide more secure and reliable network security solutions, such as digital authentication, password management and network access control.
The above is a brief introduction to the basic knowledge, technology, tools, practice and future development trend of network security. If you want to be a veritable network security practitioner, you should pay attention to the latest development and trend in the field of network security.
Common problems and solutions of intransitive verb network security
1. Virus and Malware Protection
Viruses and malware are one of the most common threats in network security. In order to prevent the attacks of viruses and malicious software, it is necessary to update the anti-virus software regularly, and do not maintain the mail and files of the system and strangers or download unknown software when operating.
2. Network password security issues
Password is the most important link in network security. In order to ensure password security, we should choose a strong password, change the password regularly, and do not use the same password or login name to use the program.
3. Social engineering attacks
Social engineering attack refers to the attacker's attack by taking advantage of human weakness, such as obtaining passwords and sensitive information through deception and fraud. In order to prevent treason, we should improve our safety awareness and not trust the information and requirements of strangers easily.
4. Phishing attacks
Phishing attacks mean that attackers disguise themselves as reliable entities such as banks and e-commerce, and obtain sensitive information of users through fraudulent means. In order to prevent online wrestling and confirm the authenticity and security of the website, don't click on suspicious links and attachments easily.
Seven, network security resource recommendation
1. Domestic and foreign security organizations
Including the China Cyber Security Association in China and the International Security Alliance, one of the largest security organizations in the world.
2. Safety information website
Including domestic security customers, freebuf, etc. And international dark reading, Threatpost, etc.
3. Security vulnerability information platform
Including domestic black cloud vulnerabilities and sky patching vulnerabilities, as well as international CVE and NVD.
4. Security tools and software
Including Nessus, Burp Suite, Kali Linux, etc.
The above is a brief introduction to the common problems and solutions of network security and the recommendation of network security resources. All employees need to constantly learn and master the latest technologies and tools, and constantly improve their safety awareness and protection ability.
Eight. The development of network security
Network security is a hot professional field. With the continuous improvement of informatization, network security becomes more and more important. Infiltration engineer, safety operation and maintenance engineer, etc. For those who want to enter the field of network security, they need to have a solid computer foundation and security knowledge, and they also need to constantly learn and master the latest technologies and tools.
The job waiting degree in the field of network security leadership is relatively high. According to different positions and regions, the average annual salary of network security practitioners is between 200,000 and 500,000. In addition to online job hunting, there are broad development prospects, and the demand in the field of network security will continue to grow in the future. For network security talents with certain experience and technology, there is a lot of room for career development.
Nine. abstract
Network security is a very important field. With the popularization of Internet and the continuous improvement of information level, the importance of network security is becoming more and more prominent. In daily life and daily life, protect personal information and privacy, improve safety awareness, and consciously not disclose sensitive information and passwords. For those who want to engage in network security, they need to have a solid computer and error foundation and security, master the latest technology and tools, and constantly improve the scope of protection and coping ability.