Trace Dns

Today is July 10, 2009 Friday, about 12:00 noon, if you do not go to dinner is still on the internet, will find that many sites are not open, there is a domain name can not be accessed by the network of IT experts to verify that this is a new network DNS server failure caused by the new network, according to the China Unicom (netcom) The engine room was attacked causing problems with the server. Thankfully, as of 14:40, the issue has been basically resolved. Speaking of the network incident, we can trace back to the December 26, 2006 earthquake in Taiwan caused by the network interruption, the earthquake caused more than 10 seabed ...

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 ...

In January, all the common top-level domains (. com/.net/.org, etc.) in mainland China were resolved, and all related domain names were directed to an IP address (65.49.2.178) located in the United States, resulting in tens of millions of of Internet users being unable to access the site within hours. April, OpenSSL "Heart Bleed (Heartbleed)" significant security vulnerabilities were exposed, which allowed hackers to read the server system's running memory. There are people in the industry to use this loophole in a well-known electric website test, successful access to a number of users of the account and password, and successfully published ...

Intermediary transaction SEO diagnosis Taobao guest Cloud host Technology Hall redirect plainly is the various methods of the various network requests to redirect the direction to other locations. For example: The redirect of redirected domain names in Web pages is also a redirection of data messages via a path in our website construction, there are times when Web redirects are required: like site tweaks, such as changing the directory structure of a Web page, moving the page to a new address, or changing the name of the Web page extension, If you need to change. php to. Ht ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest stationmaster buy cloud host technology Hall March 6 16:50 News, for" China channel DNS attack "rumors, 　　The Chinese Channel Marketing department responded after the investigation, saying the company's servers were indeed under attack and had been repairing the fault 15 o'clock today. Today 14 o'clock in the afternoon, a source said, "China channel DNS attacked, ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host Technology Hall Web performance test tools are divided into three kinds, one is the test page resource loading speed, 　　One is the test page after loading the page rendering, JS operating speed, there is a general evaluation of the page analysis, the following are introduced to these tools, if who has a better tool also please share under. ...

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall with the fierce market competition, service quality more and more become a major factor in the development of enterprises. For the enterprise that wants to perfect the service, the work order system is a very good customer service way. 　　Since its inception in 2006, the number of dnspod users has surged, in order to improve customer service level, a D-work system emerged. According to the latest data released by Webhosting.info, January 2013, the domestic domain Name Service provider market basically remained stable. And ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host Technology Hall Master article: How uses the proxy to access the blocked website for some reasons, China Telecom has blocked some foreign websites, all domestic users can not visit with it, such as the former very prosperous money-making website (speida), There are also a number of foreign websites prohibit China's IP access, the solution is to use foreign proxy server. However, the education network users can not visit foreign websites, all foreign agents can not be used for it, whether we could do nothing about it? No, we can refer to the following two ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall One, why to DDoS? With the increase of Internet network bandwidth and the continuous release of multiple DDoS hacker tools, DDoS attack is becoming more and more easy to implement. For commercial competition, retaliation and network blackmail and other factors, resulting in many IDC hosting rooms, business sites, game servers, chat networks and other network services have long been plagued by DDoS attacks, followed by customer complaints 、...

Absrtact: Since last night was Friday, know Baidu will update, this morning can not wait to open the computer, want to see, their own site has been included in the number or rankings there is no rise, but open the computer that moment dumbfounded, the site can not open, immediately I to because last night is Friday, know Baidu will update, Can't wait to turn on the computer this morning, want to see, their own site has been included in the number or ranking there is no rise, but open the computer that moment dumbfounded, the site can not open, suddenly I thought that the site program problems, there is a panic situation, because I before this blog program occasionally ...