computer security principles and practice

Problem:I always feel that the network is complicated, and I have not studied the network principles carefully before. If I can talk about some cases, it would be nice to have a DIY experiment on the computer? --------------------------- 0x00 Basic Introduction: Basic Concepts ------------------------------Generally speaking, network knowledge refers to computer

For many enterprise network administrators, switches are naturally the most commonly used equipment. So how much do you know about vswitches? Next we will use an example to discuss the practice of vswitch port configuration and access security protection! Scenario: There is a CISCO3550 switch in a certain unit. For the sake of network security, the

of D. Forward the data packets sent by A to C, just like A router. However, if D sends ICMP redirection, the entire plan is interrupted. D. directly modify and forward the entire package, capture all the packets sent by A to C, and then forward them to C, the packets received by C are completely considered sent from. However, the packets sent by C are directly transmitted to A, if the ARP spoofing to C is performed again. Now D has completely become the intermediate bridge between A and C, and

20155236 Fanchen Song _web Safety Basic Practice Directory Practical goals WebGoat Burpsuite Injection Flaws Cross-site Scripting (XSS) Summarize Practical goals (1) Understand the basic principles of common network attack technology. (2) Webgoat experiment in practice. WebGoat Webgoat is a flawed Java

20145301 Zhao Jiaxin "Cyber Confrontation" EXP9 Web Security Fundamentals Practice Experiment Answer questions (1) SQL injection attack principle, how to defend SQL injection attack principle: SQL is an ANSI standard computer language used to access and manipulate database systems. SQL statements are used to retrieve and update data in the database. SQL

20155227 "Cyber Confrontation" EXP9 Web Security Foundation Practice Experiment Content About Webgoat Cross-site Scripting (XSS) Exercise Injection flaws Practice CSRF attack Basic question Answer SQL injection attack principle, how to defend? 原理：SQL注入攻击指的是通过构建特殊的输入作为参数传入Web应用程序，而这些输入大都是SQL语法里的一些组合，通过执行SQL语句进而执行攻击者所要的操作，使非法

20145225 Tang "Cyber confrontation" Web Security Basics Practice Reference Blog: 20145215 Luchomin basic question Answer(1) SQL injection attack principle, how to defend? A SQL injection attack is the goal of tricking a server into executing a malicious SQL command by inserting a SQL command into a Web form to submit or entering a query string for a domain name or page request. Defense: Use inp

access permissions are mainly used to address the common application security threats caused by illegal network operations of computer knowledge in statistics. Its main task is to prevent unauthorized use and access to network resources. The general practice is to strengthen inbound control, such as user name identification and verification, password identificat

EXP9 Web Security Basic Practice 1, the experimental environment configuration: 1, in the command line execution: Java-jar Webgoat-container-7.1-exec.jar run Webgoat, folder clearly have, but did not succeed; 2, deleted the re-import once, unexpectedly successful, sometimes it is so strange; 3. Then open the Http://localhost:8080/WebGoat in the browser and enter the login screen to start th

PS: I was twice doing this experiment, the second experiment when the computer out a little problem stalled ... originally, There is a picture of the results of the blog did not save the diagram ... WebGoat Webgoat is a flawed Java EE Web application maintained by the famous owasp, which is not a bug in the program, but is deliberately designed to teach Web application security Courses. This applic

With the rapid development of modern computers, computer network knowledge has been popularized among the masses, which has led to a further development of computer networks, but it is precisely because of the rapid development of computer networks, it also caused a series of problems, such as the arbitrary theft of network information on various websites and the

China, these websites put "commercial interests" before "Security Principles" from the beginning of their design. They induce users to fill in their real information and use the recorded MSN account password and email password, the email contacts and MSN friends of registered users are frequently harassed. The "disclaimer" of website registration is used to exempt them from legal liability and allow users

thinking, we can know that the server security software needs to save the Administrator's computer name to know what its computer name is and then verify it. Then we can search the configuration file of the server security software to obtain the Administrator's computer nam

The link shown on Slashdot is very interesting: Http://www.ranum.com/security/computer_security/editorials/dumb/ Briefly describe it in Chinese. For more information, see the original article. The author believes that there are many common mistakes and opinions in the computer security field. The most serious six are:1-default-many items are allowed by defau

2018.9.1 Network security day01_ computer network and stratification thought Layered thought of network security computer NetworkLAN and WAN LAN (local area network)-Lan A local areanetwork, or LAN, is a group of computers interconnected by multiple computers within a region. "One area" means the same office, th