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I. Common Web security and protection principles1.sql Injection principleis 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.protection, in general there are the following points:1, never trust the user's input, to check the user'
Objective
Tencent as a company-level webserver vulnerability protection system, the current Tencent Door God System (hereinafter referred to as God) has covered nearly million webserver servers, daily processing of HTTP data packets up to tens of billions of.
There are many kinds of realization of WAF, see "Mainstream WAF architecture analysis and exploration" in details. According to the company's business characteristics, we have adopted the "serv
must be deployed for websites engaged in network transactions;
2. Web application protection based on attack behaviors;
3. Able to protect the architecture of Web websites, with Web specificity and report functions. "In addition, the real WAF should take both security and performance into account," Grant Murphy added.
SQL injection principleis 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.In general there are the following points:1. Never trust the user's input, to verify the user's input, you can use regular expressions, or limit the length, the single quotation mark and the double "-" to convert, and so on.2. Never use dynamica
1.0 SQL injectionSQL injection principle: by inserting SQL commands into a Web form to submit or entering a query string for a domain name or page request, the result is to spoof the server to execute a malicious SQL command.SQL Injection Protection:1. Never trust the user's input, to verify the user's input, you can use regular expressions, or limit the length, the single quotation mark and the double "-"
Web page ASP to achieve a simple web protection function (turn)
When it comes to security, you'll be tempted to think of a professional security software like a firewall, hard to have software to achieve the goal of security protection? No, here we use ASP, also can achieve simple guard against
parameter name.If the user has just landed on the site, then his cookie is still there, and when he can't help clicking on the link, the transfer operation will be unnoticed.Note: Of course, the case here is relatively simple, bank transfer is much safer than this.In addition to allowing users to click outside, you can also use picture, as long as the user opens this page, A transfer operation will occur.So, now many mailbox mail pictures are not displayed by default. If the icbc.com transfer
Who is the best choice?Web application protection is undoubtedly a hot topic. Because of the maturity of technologies and the increasing expectation of convenience, Web applications have become the mainstream carrier of business systems. The data value contained in the key business systems of "anjia" on the Web has aro
trojan programs are mainly placed on the webpage. When the victim accesses these webpages, these scripts or programs will be automatically executed, then the Trojan can control the victim's computer and then obtain various information about the victim's computer.
Therefore, the protection end also has two aspects: one is from the server side, protection is required to prevent
online banking accounts, and various administrator accounts. Control enterprise data, including the ability to read, tamper with, add, and delete enterprise sensitive data. Theft of important information with commercial value. Illegal transfer. Website Trojans. Control victim machines to launch attacks to other websites ......
In view of the above analysis of common Web attacks, it is imperative to protect the We
In the current network environment, applications have become the main carrier of the network, and more threats to network security come from the application layer, which puts forward higher requirements for network access control. How to precisely identify users and applications, block applications with security risks, ensure normal use of valid applications, and prevent port theft has become the focus of users on network security.
The Web application
and try to escape protection measures. With rich experience in open-source software such as Linux, these are not a problem.
All products, whether purchased or open source code, software-based or application-based, should be supported. Commercial Products are supported by suppliers. Open source provides an opportunity for value-added vendors and system integrators to integrate security knowledge. Provides continuous support for
obtain the original user account information.
Tampered parameters or urls: web applications usually embed parameters and URLs in the returned web pages, or use authorized parameters to update the cache. Hackers can modify these parameters, URLs, or caches so that the Web server returns information that should not be leaked.
Buffer overflow: the application code
relevant directory of write permissions only to the super-user, Partial directory Write permissions are given to system users. Separate the Web application and any uploaded files (including), keep the Web application pure, and the reading of the file can be read by the server and the Web server (Apache/nginx plus tomcat and other
tips are also useful for IIS administrators who have a strong budget.
First, develop a set of security policies
The first step in securing your Web server is to ensure that your network administrator is aware of every system in your security policy. If the company's executives do not regard the security of the server as an asset that must be protected, then the protection work is totally meaningless. This
skills here are also very useful for IIS administrators with a strong budget.
First, develop a set of security policies
The first step to protect Web servers is to ensure that the Network Administrator understands every rule in the security policy. If the company's top management does not regard server security as an asset that must be protected, the protection work is completely meaningless. This work req
1. Open the Web site background protection interface and turn on this feature to set the redirect address for the original background address.
2. Visit the Web site background login interface, while in the lower right corner of the screen pop-up message.
3. Users can see the corresponding protection inf
Web applications are more difficult to ensure security than client applications, because they do not have the same number of web applications and user-defined scripts as web servers with four or five major vendors, in addition, each vulnerability may contain potential vulnerabilities. For developers, the best way to ensure application security is to use recommend
Encryption | decryption | Web page
Text-code protection is a big headache, and the more you know how to protect it, the more it means the vulnerability.[-Method of adjusting the original code-]1: Right-View the original file2: View-Original file3: File-Save As4:ie Cache5: Can also be extracted by codeTutorial Code:[-About protection-]To prohibit some operation of
Dropbox's Web Security Protection Policy II: unsafe-inline instruction and random number Configuration
One of Dropbox's Web security protection measures is to use content-based security policies (CSPs ). Devdatta Akhawe, a security engineer of Dropbox, introduced the details and experience of CSP in Dropbox through fou
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