Reverse Dns Request

The intermediary transaction SEO diagnoses Taobao guest Cloud host Technology Hall DNS several basic concepts domain name space: refers to the Internet all host's unique and the relatively friendly host name composition space, is the DSN naming system at one level logical tree structure. 　　Each machine can use its own domain namespace to create a private network that is not visible on the Internet. 　　DNS server: The computer on which the DNS service program runs, with a DNS database on the results of the DNS domain tree. DNS client: Also known as parsing ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall DNS is the abbreviation for the computer Domain Name System (domain name systems or domain name Service), which consists of a parser and a domain name server. 　　The DNS parsing service is the actual addressing way for the vast majority of Internet applications, and is responsible for translating the user's request into computer communication. In general, the domain name provider to provide domain registration services will provide free DNS service ...

The intermediary transaction SEO diagnose Taobao guest Cloud host technology Hall Everybody knows, a domain name is belong to others after the registration, other people want how to parse on how to resolve, we are unable to control, but some friends often ask me what is the domain name hijacking, what is the reverse analysis, This makes me feel that a lot of people still do not understand how domain name is resolved. Through this article, you can easily realize such as Baidu's Web site can visit your own site, of course, this is just a simulation, designed to let everyone understand how the domain name analysis is going on, we do not do bad ah, hehe. ...

Domain name hijacking is the hijacking of the network to intercept the domain name resolution request, analysis of the requested domain name, the scope of the review to release the request, otherwise direct return of the false IP address or do not make the request to lose the response, the effect is on a specific Web site can not access or access is a fake URL. Domain name resolution (DNS) is the basic principle of the network address (domain name, in the form of a string, such as www.google.com) to the real computer can recognize the network address (IP address, such as 216.239.53.99 ...)

Recently, http://www.aliyun.com/zixun/aggregation/33265.html ">dnspod published a letter of apology for Youth", its threat to launch a youth war, triggered the Internet a very small discussion storm. On the interpretation of the letter of apology, please do not worry, this is not dnspod what is the major analytic problem, but the summer promotional activities for a unique preheating propaganda just. As the largest Third-party free DNS Resolution service provider ...

1. DDoS Attack Basics The main purpose of a Distributed Denial of Service (DDoS) attack is to make the specified target unable to provide normal services or even disappear from the Internet. It is one of the strongest and most difficult to defend attacks. According to the way initiated, DDoS can be simply divided into three categories. The first category to win, massive data packets flocked from all corners of the Internet, blocking IDC entrance, so that a variety of powerful hardware defenses ...

&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; With the increase of traffic volume and the rapid growth of traffic volume and data flow, the processing capacity and computing strength of the existing network have been increased correspondingly, so that single server equipment cannot afford it at all. In this case, if you throw away the existing device to do a lot of hardware upgrades, this will cause the waste of existing resources, and if again ...

Overview WEB attack is the mainstream technology of hacker attacks for more than a decade. The domestic manufacturers have long regarded WAF as the standard of security infrastructure. There are many security vendors in the market that offer WAF products or cloud WAF services. For the lack of their own security team, but also suffer from sql injection, xss, cc and other WEB attacks in the small and medium enterprises, the demand for WAF is also very urgent. WAF access to the current are the following: WAF products to buy security vendors using the cloud waf service, the domain name of the DNS server is set to cloud waf manufacturers to provide, or ...

The intermediary transaction SEO diagnoses Taobao guest cloud host technology Hall domain name registers the knowledge so-called registers, the simple division, has two kinds of significance registers: 1. A registration of a domain name that has never been registered. In this case, the registrant of the domain name generally foresees the potential value of the domain name and registers the domain name before other people think of it. 　　This scope contains some of the names of well-known brands, well-known groups or individuals, intellectual property rights. 　　2. A registered domain name. A registered domain name, if not enough ...

Intermediary transaction SEO troubleshooting Taobao guest owners buy cloud host technology Hall Ucenter home 1.5rc1, RC2 released, we received a large number of suggestions from the webmaster and bug feedback, and combined with our own extensive research work, we have to Ucenter 　　Home has been improved and perfected in hundreds of details. 　　Finally today, Ucenter home 1.5RC3 officially released and provided download! Ucenter home 1.5rc3 as UC ...