What are the basics of cyber attack and defense?

1. Be cautious of storing notes about the attack data, and it is best to record them in your own way - people don't know what to do;

2. Use a virtual ID anywhere in the virtual world, and do not leave your real name or other information;

3. Don't show off your skills to your friends – unless you think you won't blame him for your ...... even if it's his fault

4. Don't easily talk about your learning and attack plans when chatting with netizens - of course it's different.

Maybe you think I'm too busy, but now the sudden surge of "hacker fever" in China is indeed like an ungraspable drifting mm, at best, the situation is good, the technical level is rapidly improving, but ......Will the country's security services allow this group of highly skilled people to roam freely in the computer world where there may be classified information without their control? A few of the latest news that you should probably take a look at (all from '99-November):

1. The Ministry of Public Security in Beijing has set up a special security team to fight against enemy hackers;

2. The mainland has already started to deal with the construction of information warfare, and has set up a "Scientific Equipment Bureau" under the 'Second Department of the General Staff (Military Intelligence Department),' which is also currently monitoring the theft, falsification, and dissemination of computer network data. (Taiwan report).

3. According to a newspaper (People's Liberation Army Daily?) Information warfare is imminent, and there should be a "cyber army" to cope with this situation......

We're only interested in technology, but don't be fooled by your love for technology, so be careful, right?

Also, I'm just a computer enthusiast, don't treat me as a hacker, and I don't know how to hack - the so-called biting dog doesn't bark - a sentence of scolding myself and offending a large number of ......This document is intended for computer enthusiasts only, and the perpetrator is solely responsible for any illegal use.

As a prospective cyber security officer who is studying for safety in Bihuo, I would like to express my opinion.

A qualified penetration tester is constantly learning and improving, and cybersecurity is changing with each passing day, and yesterday's wind is likely to turn into today's rain.

Recommended basic learning content: Linux, Kali Linux, and an in-depth understanding of system vulnerabilities and script security.

Suggested programming learning content: PHP, Python.

There are so many things to learn and learn to learn, and there are many things to learn, and there are many things to learn, and all aspects must be learned, and the important thing is the expansion and upgrading of ideas. It is highly recommended that each vulnerability be trial-and-error in a variety of environments to increase memory and proficiency.

To summarize briefly, there are: information security (it is recommended to study social engineering and cryptography in depth), system security, and application security are currently popular firewall WAF bypass, intranet security penetration and defense, CTF red and blue exercises, and the idea of black box and white box test environment is extremely important.

In 2020, it is no longer a simple vulnerability that can be seen at a glance, and if it is a traditional penetration test, it will not improve much. The courses on the Internet are similar to the basic operations in the tutorials, and you will only fall behind if you study hard and think hard, keep up with the development of the times, go to the big guys to learn and communicate, or go to well-known training institutions to practice and cross the catastrophe.

1. Cyber attacks mainly include the following aspects:

1. Network monitoring: Do not take the initiative to attack others, but set up a program on the computer to listen to the data communicated by the target computer and other computers.

2. Network scanning: use the program to scan the open ports of the target computer, etc., with the purpose of finding vulnerabilities and preparing for the invasion of the computer.

3. Network intrusion: When the other party is found to have vulnerabilities, it invades the target computer to obtain information.

4. Network backdoor: After successfully invading the target computer, in order to achieve long-term control of the "loot", Trojans and other backdoors are planted in the target computer.

5. Network stealth: After exiting the target computer after the intrusion is completed, the traces of your own incursion will be cleared to prevent it from being discovered by the other administrator.

2. Network defense technology mainly includes the following aspects:

1. Secure operating system and security configuration of operating system: Operating system is the key to network security.

2. Encryption technology: In order to prevent interception and data theft, all data is encrypted.

3. Firewall technology: The firewall is used to restrict the transmitted data to prevent invasion.

4. Intrusion detection: If the network defense line is finally breached, it is necessary to send an alarm of intrusion in time.

5. Network security protocol: ensure that the transmitted data is not intercepted and monitored.

Attack techniques: network scanning, network eavesdropping, network intrusion, network backdoor, network stealth.

Defense technology: security operating system and security configuration of the operating system, encryption technology, firewall technology, intrusion detection, network security protocol.

Summary. Hello dear, glad to answer for you! Network attack and defense belong to the information security profession, and network security and network attack and defense belong to the information security profession.

Although they are all computer science disciplines, they do not learn the basic knowledge of security, such as cryptography and number theory.

Hello dear, I'm glad to answer your questions! Network attack and defense belong to the information world hail security major, and network security and network attack and defense belong to the information security major. Although they all belong to the computer science, the basic knowledge of security, such as cryptography and number theory, is not learned.

Cyber attack and defense, also known as "cyber confrontation". A combination of cyber attack and cyber protection. Network attack refers to the comprehensive use of vulnerabilities and security defects in the target network to attack the hardware, software and data in the network system, mainly including stepping on points, scanning, obtaining access rights and early limiting, privilege escalation, controlling information, covering traces, creating backdoors, etc. Network protection refers to the comprehensive use of one's own network system functions and technical means to protect one's own network and equipment, so that the data of the letter and the acre of interest is not intercepted, counterfeited, stolen, tampered with or eliminated in the process of storage and transmission, including encryption technology, access control, detection technology, monitoring technology, audit technology, etc.

Cyber attack and cyber protection are a pair of "spears" and "shields", and cyber attacks are generally ahead of cyber protection.

Can you learn from these training institutions at Peking University Jade Bird?

It can be learned that Peking University Jade Bird is an IT vocational education brand.

1. Network attacks include network scanning, eavesdropping, intrusion, backdoor, and stealth;

2. Network defense includes operating system security configuration, encryption technology, firewall technology, and intrusion detection technology.

Cyberattacks are any type of offensive action that targets computer information systems, infrastructure, computer networks, or personal computer equipment. For computers and computer networks, destroying, exposing, modifying, rendering software or services out of service, stealing or accessing data from any computer without authorization is considered an attack on a computer or computer network. The significance of network defense is that offense and defense are contradictory bodies of opposites, and there is a dialectical unity relationship of interdependence and mutual transformation of filial piety and dispersion, and in network offensive and defensive operations, such a dependence relationship also exists.

It is necessary to establish a sense of "active defense".

1. Network attacks include network scanning, eavesdropping, intrusion, backdoor, and stealth;

2. Network defense includes operating system security configuration, encryption technology, firewall technology, and intrusion detection technology.

Cyberattacks (also known as cyberattacks) are any type of offensive actions against computer information systems, infrastructure, computer networks, or personal computer equipment. For computers and computer networks, disrupting, disclosing, modifying, disabling software or services, stealing or accessing data from any computer without authorization is considered an attack on computers and computer networks. The significance of network defense is that offense and defense are contradictory bodies of opposites, and there is a dialectical unity relationship of interdependence and mutual transformation.

It is necessary to establish a sense of "active defense".