Dns Cache Location

In the double eleven zero peak scenario, the traffic of recursive DNS is many times as usual. The increase in authoritative DNS traffic is not as obvious as recursive DNS. Because in the double eleven, the large number of requests is a duplicate domain name.

North Dragon in the network with domain name registration Management Agency CNNIC issued the first "China's domain Name service and security status Report", "Report" shows that China's current domain name server total of nearly million, of which more than 50% of the domain name server is relatively insecure, and China's 57% of the important information systems exist the risk of The following is the "China Domain Name Service and security status report" Full text: report summary:-As of August 10, 2010, monitoring to the World Domain name server total of 16,306,432, which authoritative domain name server 2,903,55 ...

The intermediary transaction SEO diagnoses Taobao guest stationmaster buys cloud host technology Hall August 26 news, the North Dragon Medium net carries the domain name registration management organization CNNIC to release the domestic first "China Domain Name service and the Security status report", "the report" shows that our country current domain name server total quantity nearly million, among them more than 50% 　　Domain name server is relatively insecure, and 57% of our important information systems have the risk of domain name resolution. The following is the "China Domain Name Service and security status report" Full text: report summary:-As of August 10, 2010, monitoring ...

The intermediary transaction SEO diagnose Taobao guest Cloud host technology Hall one, Cdn CDN, many entry-level stationmaster may be unfamiliar to this noun, CDN is contentdeliverynetwork abbreviation, we can call "content distribution Network", it is to establish and overlay in the existing interne T based on the virtual network composed of node server groups distributed in different regions. The goal is to publish the content of a Web site to the nearest user by adding a new layer of network architecture to the existing Internet.

Intermediary transaction SEO diagnosis Taobao Guest Cloud mainframe technology hall with the advent of the 11 long holiday, everyone to the Ministry of Railways 12306 of the discussion again. This article (original) from 12306 website extension to the site performance of a lot of discussion, for entrepreneurs and technology enthusiasts have a strong reference. 　　The author Chenhao (Weibo) has 14 years of experience in software development, 8 years of project and team management experience. 12306.cn website Hung, was scolded by the people all over the country. I've been here for two days.

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall site access speed problem should be in fact, the webmaster should consider the highest priority, Web site access is slow directly related to the site traffic, user experience degree of problem. 　　Today I'm going to introduce you to a few common ways to solve Web sites too slowly. 1. Through the browser plug-in to find the Web page in the process of loading time problem is recommended to use Firefox Firefbug or Google browser developer tools (F12), here to Firebug for example, installed fir ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnosis Taobao Guest Cloud mainframe technology Hall today roughly browsed the high configured Web Sites." The Chinese version of this book is the "High performance Web site Building guide." This book has a further in-depth study of the individual issues of the advanced chapter "Evan Faster Web Sites", the translation of High-performance network ...

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 ...

Dnspod webmaster Wu Hongshong received Sina Science and technology interview May 21 evening, leading to a number of provincial network fault reason chain source, free domain Name Service provider dnspod Webmaster Wu Hongshong first appeared today to accept Sina Science and technology interview, because Dnspod encounter malicious attack finally led to a number of provincial network breakdown paralysis event to explain.　　Wu Hongshong that Dnspod was also the victim. Wu Hongshong revealed that the Dnspod server on the domain name of about 100,000, the server 18th night in total about 10G traffic attacks, resulting in 100,000 domain names inaccessible, including Storm audio and video. ...

There is a concept of an abstract file system in Hadoop that has several different subclass implementations, one of which is the HDFS represented by the Distributedfilesystem class. In the 1.x version of Hadoop, HDFS has a namenode single point of failure, and it is designed for streaming data access to large files and is not suitable for random reads and writes to a large number of small files. This article explores the use of other storage systems, such as OpenStack Swift object storage, as ...