View Dns Server Cache

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.

VeriSign, Afilias, and other vendors are working on cloud-based DNS (domain name server) services. With the addition of digital signature and public key encryption, the security of Internet domain Name system will be improved. But is the deployment of the domain Name System Security Extension Protocol (DNSSEC) prompting more companies to outsource their DNS operations? This is an opportunity for service providers, including VeriSign and Afilias, to launch new management DNS and related security services in the coming weeks. ...

Intermediary transaction SEO diagnosis Taobao guest owners buy Cloud host technology Hall National Computer Network Emergency Technology Processing Coordination Center on the risk of serious security vulnerabilities in DNS system Emergency Bulletin: Security Bulletin: cn-va08-05 Release date: July 24, 2008 Vulnerability Type: Fraud Vulnerability Assessment: Important Security level: Level Three exposure: Public vulnerability Description: 20 ...

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1. Defensive Foundation 1.1. Attack Traffic in the End How DDoS Talk about defense, the first is to know in the end suffered much attack. This question seems simple, in fact, there are many unknown details in it. Take SYN Flood as an example. To increase the sending efficiency, more SYN wait queues are generated on the server. When the attacker populates the header, the IP header and the TCP header are not filled with optional fields, so IP ...

The intermediary transaction SEO diagnose Taobao guest cloud host technology Hall content again rich website, if slow to cannot visit also meaningless; SEO do a good site, if the search spider can not catch is also in vain; 　　UE design of the humanized site, if the user can not even see is empty talk. So the efficiency of Web pages is definitely the most noteworthy aspect. How can you improve the efficiency of a Web page? Steve Souders (Steve Souders's data suggests 14 guidelines for improving the efficiency of Web pages ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall this few days in stationmaster net to see an article about the promotion website visit speed, deeply feeling, the website speed affects the Netizen to the website first impression, if the website visit speed is very not to be able, then do not hope the search engine will continue to bring the flow, 　　Don't expect users to stay on your site for long, so it's important to improve the site's user experience. Of course, the article mentioned above is mainly to use the site code and host configuration to enhance the speed of Web site access, mainly to increase the file cache time and Configuration D ...

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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 ...