dns lookup

Before continuing to deploy Microsoft ExchangeServer2010, we recommend that you read this topic to help your organization prepare for deployment. Exchange Organization Planning Before deploying Exchange2010, the existing infrastructure must meet

MySQL optimized 100 of the 100 suggestions for MySQL Optimization MySQL is a powerful open-source database. With more and more database-driven applications, people have been pushing MySQL to its limit. Here are 100 tips for adjusting and optimizing

MySQL is a powerful open-source database. with more and more database-driven applications, people have been pushing MySQL to its limit. here are 101 tips for adjusting and optimizing MySQL installation. some tips are applicable to specific

MySQL is a powerful open-source database. With more and more database-driven applications, people have been pushing MySQL to its limit. Here are 101 Tips for adjusting and optimizing MySQL installation. Some tips are for specific installation

The online test mechanism provides a simple and convenient method to assist the network management to test the line quality. You do not need to enable the software on the calculator and directly go to the configuration interface of the router to

The Browser Developer Tools Network window allows you to see the exact time required to download each component.According to the above table for a brief analysis--Stalled (blocked)The browser has a limit on the number of concurrent connections to

SSH Chinese documentsSSH is a security protocol created on the application layer and transport layer, which is used to replace the poor security telnet and secure login.SSH is currently a more reliable protocol that provides security for Telnet

After entering the url, you see the homepage of baidu, then how does all this happen?before, recently, I think I will certainly be asked later, or ask such questions, if the Baidu box input query string start, is how to return the things you Need.So

topologyAddressing Table Device Interface IP Address Subnet Mask Dfault Gateway R1 g0/0 192.168.20.1 255.255.255.0 N/A G0/1 192.168.10.1 255.255.255.0

Predictive feature optimization for Chrome PredictorChrome will become faster as you use it. This feature is implemented by a singleton object predictor. This object is instantiated in the browser kernel process (Browser Kernel processes), and its

In ZenAndTheArtOfScaling-akoandepigramapproach, RussellSullivan proposed an interesting idea: there are 20 classic bottlenecks. It sounds as skeptical as there are only 20 basic plots (20 basicstoryplots. But based on different people In The article

MySQL optimization MySQL is a powerful open-source database. With more and more database-driven applications, people have been pushing MySQL to its limit. Here are 101 Tips for adjusting and optimizing MySQL installation. Some tips are applicable to

The search engine sends their search robots to access and index website content. By default, website administrators also welcome them.Visit. However, because a robot from a search engine affects website performance to a certain extent, not all

  An article titled best practices for speeding up your web site has to be mentioned about the front-end performance of websites. He is from the Yahoo performance research team. This article lists the best practices for accelerating 7 categories of 3

Principle 1: Reduce the number of HTTP requests It takes time to construct a request and wait for a response. Therefore, the fewer requests, the better. The overall idea of reducing requests is to merge resources and reduce the number of files

Libcurl and libcurl0. Add a protocol header for the curl used Original article:If you specify URL without protocol: // prefix, curl will attempt to guess what protocol you might want. it will then default to HTTP but try other protocols based on

MySQL is a powerful open source database. With more and more database-driven applications, people have been pushing MySQL to its limits. Here are 101 tips for adjusting and optimizing MySQL installation. Some of the tricks are specific to the

A list of FTP error codes150 file is in good condition, open data connection200 Command success202 Command not implemented211 System State or system help response212 Directory Status213 File Status214 Help information, information only useful to

Load Balancing TechnologyThe proliferation of TCP/IP traffic, new network traffic management equipment also accompanied by the production, such devices provide intelligent content exchange capabilities, the use of this ability to monitor network

PHP is so tightly integrated with Web pages that it's easy to forget that the language can also be used to perform other functions--Data encryption, window application and interface programming are three examples. Since network programming is the