security practice questions

Everyone else is best practice, because my current settings do not follow the reference document recommendation, or the use of delegatingfilterproxy, so I can only say concise practice. Put my applicationcontext-security.xml first.XML version= "1.0" encoding= "UTF-8"?> Beans:beansxmlns= "Http://www.springframework.org/schema/security"Xmlns:beans= "Http://www.s

Two security questions about UNIX Networks In recent years, many articles have successively introduced a so-called Secure UNIX shutdown user. The main idea is to add the/etc/shutdown command or the/etc/haltsys command at the end of the/etc/passwd file or the/etc/shadow file to replace/bin. /SH command. In this way, even if someone knows the password of the shutdown user (or does not set the password of the

Author: Xuan soul Web security practices navigation http://www.cnblogs.com/xuanhun/archive/2008/10/25/1319523.html Security Technology Zone http://space.cnblogs.com/group/group_detail.aspx? Gid = 100566 Preface The web security practice series focuses on the practical research and some programming implementation of the

failure recovery mechanism for compute nodes that carry user-calculated load : compute node Local restart failure. and non-local restart classes when the fault occurs, how to maintain the continuity of business delivery without maintenance intervention and application Layer special processing . l reliability of the cloud Computing data center overall network safeguard mechanism. l cloud storage data continuous service and data anti- missing protection mechanism HDD

Web security practice (2) Analysis of http-based web architectureThe web security practice series focuses on the practical research and some programming implementation of the content of hacker exposure-web Application Security secrets and solutions (version 2. So if you full

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 EE Web application maintained by the famous o

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

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)

Web security practice (6) Information Extraction from web Application Analysis The web security practice series focuses on the practical research and some programming implementation of the content of hacker exposure-web Application Security secrets and solutions (version 2.

to IdeaIf it is much easier to add the JAVAP command to the compiler to view the bytecode file, here's how to add the JAVAP command to idea:(1) Open the Setting menu,(2) Find the Extension tool in the tool click Open,(3) Click the Green Plus button in the upper left corner of the left area to pop up an edit box like this, enter as prompted,(4) Click OK after completion, click on the setting window of apply and OK, to here has completed the JAVAP command to add,(5) View the added commands and ru

) {MapNewHashmap(); Premiumphone.put ("Apple", "IPhone"); Premiumphone.put ("HTC", "HTC One"); Premiumphone.put ("Samsung", "S5"); Iterator Iterator=Premiumphone.keyset (). iterator (); while(Iterator.hasnext ()) {System.out.println (Premiumphone.get (Iterator.next ())); Premiumphone.put ("Sony", "Xperia Z"); } } }"Main" java.util.ConcurrentModificationException at java.util.hashmap$hashiterator.nextentry (Unknown SOURCE) at Java.util.hashmap$keyiterator.next (Unknow

Linux and Security Practice IIBasic kernel Modules20135238 Ching1.Understanding Module PrinciplesLinux modules are a collection of functions and data types that can be compiled as standalone programs. The module mechanism is provided because Linux itself is a single core. Single core because all content is integrated and efficient, but scalability and maintainability is relatively poor, the module mechanism

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

greater than the expiration time. Another useful principle is that users are required to provide a password before they can perform sensitive operations. You can only allow permanently logged-in users to access features that are not particularly sensitive in your app. It is an irreplaceable step to have the user manually authenticate before performing some sensitive operations. Finally, you need to confirm that the user of the logout system is indeed logged out, which includes deleting the pers

Author: Xuan soul Prerequisites: None This series navigation http://www.cnblogs.com/xuanhun/archive/2008/10/25/1319523.html Security Technology Zone http://space.cnblogs.com/group/group_detail.aspx? Gid = 100566 Preface The web security practice series focuses on the practical research and some programming implementation of the content of hacker exposure-web Appl

(Kern_info"finished\n");} Module_init (Print_init); Module_exit (print_exit);2. Compiling the moduleNext write Makefile.(Where the "Enter +tab" key is used during all to make)obj-m:=proclist.ocurrent_path:=$ (shell pwd) Linux_kernel_path:=/usr/src/linux-headers-3.13 . 0-genericall: -C $ (Linux_kernel_path) m=$ (current_path) Modulesclean: -C $ (Linux_kernel_path) m=$ (current_path) CleanThe first line: Write your own. C filename + ". O".The third line of Linux_kernel_path after you write

solve the authentication problem is to use the private key and the public keyand the main public key information acquisition becomes particularly important; using third party justice, impartial public key information目前标准的证书存储格式是x509，还有其他的证书格式，需要包含的内容为：证书==×××? 公钥信息，以及证书过期时间 ? 证书的合法拥有人信息 ? 证书该如何被使用（不用关注） ? CA颁发机构信息 ? CA签名的校验码 04:openssl Software Detailed descriptionTo obtain version information for the OpenSSL software:Rpm-qa OpenSSLOpenSSL version Get the OpenSSL profile inform

directly connected REMOTE_ADDR.But the security risk is that the x_forwarded_for information is a field in the HTTP header that can be modified (forged) to any string. Suppose a business scenario is: The user's IP into the database, if first obtained the user forged IP string, injected SQL query statement, resulting in SQL Inject vulnerability.So either get remote_addr directly, or filter the http_x_forwarded_for and so on (for example, filter by for

[Best Practice series] PHP Security three axes: escape for filtering, verification, and escaping Blade template engine exploring PHP escape implementation When rendering the output into a webpage or API response, it must be escaped. this is also a protection measure to avoid rendering malicious code and XSS attacks, it also prevents application users from inadvertently executing malicious code. We can use

the conventional one-way, more than a way to reduce the master The pressure of the server when replicating data.As another example, a single Redis master will encounter a single point of failure, in order to resolve the high availability of redis. Next we want to achieve the goal is that a master with a slave, and slave with a slave, the advantage is that when the master fault, the slaver1 changed to master, the other configuration does not need to be modified, the service can be used normally.