ccie prerequisites

 Multicast Summary: Why multicast is introduced. When you want to send a message to some people, unicast based on TCP is too slow, and the broadcast will let everyone know, so the use of multicast, multicast is the use of UDP send, and only one

The crossover network cable is used for the connection between the adsl modem and the HUB (not all of which are related to the MODEM design). The connection between the HUB and the HUB does not pass the cascade connection port, and the two computers

If you have a new windowsxp or WINDOWS7 machine installed, as a developer, I recommend installing the following software:1,winmerge.http://winmerge.org/2, Lua for Windows, or Python or ruby, choose a scripting language that you like. Luaforwindows

HTM files and XHTML files. htm are static webpage files that do not contain any server controls and are composed of html elements. When the client browses the cmd.htm file, IIS can be directly sent to the browser for explanation and execution

Basic conditions for Windows visits:         1)   Both computers open, and network shared resources are set up;    2)   Both computers added   "microsoft  network file and print sharing"   service;    3)   Both sides correctly set the IP address in

As a network administrator or network engineer, you cannot avoid network cutover. Here we will summarize what needs to be prepared before network cutover In the IDC room and how to solve some problems encountered during cutover. The Network cutover

(Illustration) Basics of network formation: network cable production-Linux Enterprise Application-Linux server application information. For details, see the following. Differences between express connect and crossover Main Line, that is, Express

The attacker provides a link containing a known session ID, for example, & amp; lt; ahref & #039; login. php? PHPSESSID1234 & #039; & amp; gt; click & amp; lt; a & amp; gt; To trick victims into clicking this link. Users may perform a series of

Developers who have done PHP development should be aware that PHP has a lot of built-in features, mastered them, can help you in the development of PHP more handy, this article will share 8 development of the necessary PHP features, all very

Learning the UWP all the time, writing code and getting to what level? How many things do you need to learn to Dudangyimian? I would like to have a new contact with the UWP developers have this confusion, occasionally stop to summarize the analysis

Liu Ren said that the world's strongest business model is: selling cigarettes at the door, 3 yuan purchase, 3.5 yuan sales. I think about this sentence. Some people have proposed the operability and necessity of small businesses. Someone proposed

1. Connect MySQL Database code $c or Die ("Cannot connect to database server:". mysql_error ()); mysql_select_db ("Liuyanben", $connec) or Die ("Cannot select Database:". mysql_error ()); mysql_query ("Set names ' GBK '"); ?> 2, read the database,

The most popular PHP MVC framework http://yp.oss.org.cn/software/show_resource.php?resource_id=742 Yii (sound easy frame, I generally directly read yii) codeigniter (Jane read ci) Symfony CakePHP MVC, this look at Baidu on line, MVC in the

After a period of enthusiastic PHP programming, I was deeply touched by the configuration of PHP on the Windows platform. At first, I used a one-click installation of the dummies package, however, considering that the installation version of the

The options below follow the default value. Press ENTERRestoring the kernel initrd image .:File/etc/pulse/Default. Pa is backed up to/etc/pulse/Default. Pa. old.0.HAL: unrecognized service (ignore) Bash:./vmware-install.pl:/usr/bin/perl: Bad

Oracle 11g installation prerequisite check all failed, details are as follows: // Physical memoryPhysical memory-this prerequisite will test whether the total physical memory of the system is at least 922 MB (944128.0kb ).Expected Value: N/Actual

Now, many netizens have purchased easy-to-use and cheap cameras to chat with other friends. However, it would be a bit monotonous to see the characters around you. In fact, this is not difficult. There are a lot of free cameras (webcam) on the

Oracle Database Upgrade has always been a complex project. DBAs need to spend a lot of time and effort on preparation for Product Database Upgrade because of its high complexity, therefore, even if you are fully prepared, unexpected problems may

I. The significance of cross-platform data transmission is that you can transmit tablespaces in databases running on one platform to databases running on another platform.   2. Typical cross-platform portable tablespaces include the following: 1.

The "Architecture Design" series has started ~~~ The xwarehouse police has predicate Wolverine. Here I also have some Predicate-abnormal user requirements. The prototype comes from my project. Cosmic truth: The only thing that remains unchanged is