Discover how to defend against phishing, include the articles, news, trends, analysis and practical advice about how to defend against phishing on alibabacloud.com
Log on as an administrator and enter
1. # arp-a>/etc/ethers
Import ip and mac addresses to ethers
2. # vi/etc/ethers
Edit the file format. The content of the ethers file must be deleted in any of the following formats.
192.168.1.X XX: XX
192.168
One, remove folder hidden share
If you use the Windows 2000/XP system, right click on C or other disk, choose "Share", you will be surprised to find it has been set to "Share this folder", and in the "Network Neighborhood" is not see these content,
Because of the depth of our reliance on computers, information security issues are getting more and more attention. In the network technology so developed today, some of the folk network "hackers" can easily steal our private information. Friends
The heart of the people must not be. There are always some boring or intentional people on the Internet. I don't have much to say. On dry Goods, configure VPS APF to prevent small traffic DDoS attacks.
For large traffic DDoS attacks, the need for
A few days ago the friend said his station consumes the cloud bean to be formidable, then sees the log to discover most is the visit cron.php. And then is not the intranet IP access, and also did not add monitoring and so on, it is estimated that
Doing a local website has always been a great luck ingredient. Some sites are successful, and most are silent. In fact, local public products are not only on the Internet, many traditional media such as the Straits Metropolis newspaper is a local
Arbor Networks's Darren Anstee details the growing number of distributed denial of service (DDoS) threats, and suggests how data center managers should set out to build a multi-level defense-based solution to address DDoS threats.
The firewall is
The concept of XSS is needless to say, its harm is enormous, this means that once your site has an XSS vulnerability, you can execute arbitrary JS code, the most frightening is the attackers use JS to obtain cookies or session hijacking, if this
first and only line of defense. After the connection, you can easily enter the vro background without an accident, and then you can control the entire intranet traffic.
Preventive Measures: The simplest and most effective method: add some special symbols to the password.
If you brush a firmware for the router, it will automatically crack other wireless networks. After the cracking, it will automatically go to the background and update its own firmware... The router Trojan broke out.
WiFi hots
encoding for untrusted data by default to help us defend against it. Do we still need to spend time studying how to defend against XSS? The answer is yes. for untrusted data that will be placed in the body of the HTML page, HTML encoding is enough to defend against XSS attacks, even placing HTML-encoded data in the attribute of an html tag does not generate an X
Web Application Security Defense 100 TechnologyHow to defend against web Application Security is a question that every web security practitioner may ask. It is very difficult to answer. It is easy to be too superficial or theoretical. To clarify clearly, the answer is the length of a book. This article will introduce a good book that can easily answer this question-web application defender's cookbook, which is an underestimating "dry goods" book. Alth
2017-2018-2 "Network countermeasure Technology" Exp9:web Security Foundation———————— CONTENTS ————————
I. Answers to basic questions
1.SQL injection attack principle, how to defend?
2.XSS attack principle, how to defend?
3.CSRF attack principle, how to defend?
Two. Practice Process record
1.General
①
20145236 "Cyber Confrontation" EXP9 Web security Basic Practice one, the basic question answers:
SQL injection attack principle, how to defend
SQL injection: This is done by inserting a SQL command into a Web form to submit or entering a query string for a domain name or page request, eventually reaching a malicious SQL command that deceives the server.
The ability to inject (malicious) SQL commands into the background database en
system can be moved as the cloud moves and copied to any place where the cloud is deployed.Engine Granularity
The engine mentioned here refers to WAF, IPS, IDS, and DLP. The Internet cloud ecosystem requires these engines to be more powerful and provide Engine Services for nodes at all levels.
On the one hand, the engine must be visible at the minimum granularity, so that it can be conveniently deployed at other layers or directly provide services. On the other hand, the cloud ecosystem should
20155321 "Network attack and Defense" EXP9 the foundation of web security
SQL injection attack principle, how to defend
Principle: Add additional SQL statements at the end of a predefined SQL statement (feeling generally or on a permanent) to execute arbitrary queries to obtain the appropriate data information
Defense: You can control the length of the input in the background or for some special symbols, such as -- prohibit u
access to backup, hide, and other information files
(2) Error echo
Brute-force directory, brute-force path
(3) column directory
(4) management background exposure: how to deal with search engine indexing Management Background
12. Redirection
Mainly used for phishing
Generally, WAF does not defend against such vulnerabilities.
Session-based attacks
1. attack scenarios
(1) Use a fixed session
(2) The session
the SQL Servers database. In the database design process, engineers should try to use these parameters to eliminate malicious SQL injection attacks.
(2) The principle of XSS attack, how to defend
XSS attack principle
XSS is a computer security vulnerability that often appears in web apps that allows malicious Web users to embed code into pages that are available to other users. For example, the code includes HTML code a
EXP9 the basic practice of Web security Fundamentals Answer 1, SQL injection attack principle, how to defend?1.对用户的输入进行校验,可以通过正则表达式,双"-"进行转换等。2.不要使用动态拼装sql,可以使用参数化的sql或者直接使用存储过程进行数据查询存取。3.不要使用管理员权限的数据库连接,为每个应用使用单独的权限有限的数据库连接。4.不要把机密信息直接存放,加密或者hash掉密码和敏感的信息。5.应用的异常信息应该给出尽可能少的提示。6.采取辅助软件或网站平台来检测sql注入。2, how to defend the principle of XSS attack?在表单提交或者url参数传递前,对需要的参数进行过滤;检查用户输入的内容中是否有非法内容,如尖括号、引号等,严格控制输出。3, C
Note: although all examples in this article are developed based on JSP/Servlet technology, the principles of vulnerabilities and solutions are applicable to other Web technologies.
Web security status quo
The current situation of Web security is not optimistic. In recent years, there have also been major practical cases of Web attacks, such as the hacking of the website of the Ministry of Information Industry's official newspaper "China e-news" and the theft of College Students' Online Banking.
According to the statistics of the network security events received and processed by CNCERT/CC in the first half of this year, the actual situation of Internet security in China is still not optimistic. Various cyber security incidents have increased markedly compared with the same period last year. Over the past six months, CNCERT/CC received phishing events and Web page malicious code events, which exceed 14.6% and 12.5% of the total number of years
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