information security principles and practice

most browsers support a maximum capacity of 4096, so do not use it to save datasets and other large amounts of data. Since not all browsers support cookies, and the data information is stored in clear text in the client computer, Therefore, it is best not to save sensitive, unencrypted data, otherwise it will affect the security of the site. The code saved with the cookie object is as follows:Store informa

First, website attack and defense Attack: 1. XSS attack: Dangerous character escapes, HttpOnly 2. Injection attack: Parameter binding 3, CSRF (cross-site request forgery): Token, verification code, Referer Check 4. Other vulnerability attacks Error Code HTML annotations File Upload Path traversal Defense: 1. Web Application firewall: modsecurity 2. Website security vulnerability Scan

, cheats the user to click, steals the user's private information in the cookie, or the attacker adds a malicious form to the forum, and when the user submits the form, it transmits the information to the attacker's server instead of the site that the user originally believed.3.XSS Precautionary ApproachFirst, the code in the user input places and variables need to carefully check the length and the "First,

system on the network, any destruction behavior is found in time, reduce the possible loss to the smallest; Finally, the internal personnel (controllable user) to establish an audit system, "To ungrateful, conceal", forensics can enhance the deterrent effect of security. After a year of practice testing, "vase" model is very practical and constructive, it is not only in line with people's understanding of

computer that does not bind the file and printer share on the corresponding protocol will not be declared, so it will not appear in the network neighbors. When the customer's computer wants to obtain the desired list of network resources, it first broadcasts a browser request. After the browser master server receives the request, if the requested list is the browsing list of this group, directly send back the List of resources required by the customer. If you are requesting a List of other work

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

The Linux virtual server (LVS) system is composed of the Load balancer, server cluster, and file servers, in Linux, Server Load balancer combines a group of servers into a service cluster, and the front end of the actual Server is a Load balancer, after the user requests are scheduled to the actual server for execution, the results are returned to the user. The end user can see only one server. Because the Load Scheduling Technology is implemented in the Linux kernel, we call it Linux virtual se

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 dynamically assembled SQL, either using parameterized

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

, click again login is a failure, we installed the certificate can not enter the password, the landing was successful.First, enter the command in the terminal:ssh-keygen–t RSAThen go straight to-enter-enterThen, ~.ssh/will generate id_rsa,id_rsa.pub this two filesUse the cat instruction to copy the public key information into the. Ssh/authorized_keys to make it visible in the WINSCPCopy out these two files, in win below generate PPK file, it can be us

and managed effectively; the design and development technology of the security architecture should be more open. The new technologies and new products of major security technology companies all reflect the trends of "intelligence, integration, and management. Development Direction Technology/product Company Intelligence Deep inspector

Author: Xuan soul Security Technology Zone http://space.cnblogs.com/group/group_detail.aspx? Gid = 100566 Web security practices (1) HTTP-based Architecture Analysis Common Tools Web security practices (2) HTTP-based Web Architecture Analysis Web Security Practices (3) Analysis of HTTP-based server architecture Web

ASP. NET security question-forms verification practice Through previous articlesArticleI believe that you have a certain understanding of forms verification and understand the concepts of identity, iprincipal, and Bill. The previous website has not linked verification with the database. This article will explain from this aspect, usingCodeTo demonstrate! In addition, some role authorization issues are als

Basic informationThe National Computer Grade examination three level course--Information security Technology (2016 edition)Written by the examination center of the Ministry of EducationPublishing house: Higher Education PressPublication date: 2015-12-1isbn:9787040443035Edition: 1Number of words: 670000Printing time: 2015-12-1Folio: 16 OpenPackage: PlainPrice: 55.00 RMBContent IntroductionThe book is based o

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

Description: Information System Practice Notes series is the author in peacetime research and development has encountered the size of the problem, perhaps simple and subtle, but often is often encountered problems. The author is more typical of which to collect, describe, summarize and share.Absrtact: This article describes the interface between the information s

-shelling Application Buffer overflow-Principle Denial of Service Attack-Principles of SYN attacks, smurf attacks, pingflood, Teardrop, and LAND attacks Malicious Code-principles and features of Trojans, viruses, worms, and malicious code on webpages SQL Injection-Application Principles of network spoofing-IP Address Spoofing Log cleanup-Windows, linux Operating

attacker.At this point the attacker controls the traffic between PC A and computer B, and he can choose to passively monitor traffic, acquire passwords and other secret information, and falsify data to change the communication between Computer A and computer B.4, the harm of ARP spoofingARP spoofing can cause the target computer to fail communication with the gateway, which will lead to traffic redirection, and all data will pass through the attacker

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

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