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Cloud Service includes two types of roles: WebRole and WorkerRole. These Roles can be understood as different virtual machines. The only difference is that WebRole is used to host Web sites and can be understood as a virtual machine with IIS

Hole-punching seems a little earthy, and it is easy to think of "the son of a rat will make a Hole ". Before the emergence of virtual machines, this problem may not be well understood by everyone. VM usually has a large file as the storage of Guest

Requires components: Virtual Machine, CentOS-6.5-x86_64-minimal.iso, CentOS-6.5-x86_64-bin-DVD1.iso. 1. First, use minimal to install the virtual machine to minimize installation; 2. Perform some basic configurations; 2.1 The virtual machine uses

1. Check whether Samba is installed on CentOS. # Rpm-qa | grep samba Note the version number. If the main installation package of samba is missing, you need to download and install the main installation package based on the installed version, or

In linux, any file has an inode corresponding to it. That is to say, in a file system, a file has a unique ino to mark it, in the ext4 system, how does ino determine? When we create a new file or directory, the ext4_create function is called. The

An important place to use is the storage of game records. When playing a boss, you can start from the first stop without restarting. Why: in the future, Project expansion and maintenance, such as the vitality, attack strength, and defensive strength

Summary: 1. Three bottom-layer magic commands of HP:# Lanscan check whether the underlying physical status of the host is UP (note that the IP layer cannot be viewed by this command)# Netstat-rn check whether IP Address binding is correct# Nslookup

Abap calls an external web service in the following three steps: 1. se80, select package, and click Create enterprise service/web service-proxy client 2. lpconfig: Create a logical Port 3. Call the created proxy class programmatically. Note: This

Apache benchmark can only test a single url. I wrote a benchmark script using shell, supporting concurrent tests and specifying parameters. However, no statistics were made on the response time and ret code, it is applicable to precise statistics on

Most attributes play an important role in file system security management. Pre-course preparation knowledge: File System classification, file system display permissions and modification methods, understanding of the owner, owner group, and other

Lsof requires the root permission to execute Run the following code for testing:: public class TestSleep { public static void main(String[] args) { System.out.println("being sleep"+new Date().toLocaleString());

There is a tool in window7 that can be used to view the block size of the Operating System-fsutil. This tool can also run on the window2000 platform. This gives us great convenience. Enter fsutil fsinfoo ntfsinfo c: view C information: The

Apache Ambari 1.4.4 Installation Guide (Note: because the image is difficult to use in word, you can download it from the attachment) Operating System: CentOS6 Cluster machine list: Hadoop.master.com (192.168.1.204) Hadoop.slave1.com (192.168.1.205)

Bo pig is very lazy. I haven't written a few decent technical articles for half a year. Today, let's take a look at the port receiving and illuminating commands of devices from different manufacturers. These commands are often used in engineering

When using JQuery, you can use multiple selectors to select the same element. The performance of different methods is different. Sometimes the difference is very large. Commonly used selectors include the following:ID selector $ ("# id ")Tag

To obtain the background color and font color of a webpage, follow these steps: Idea: the rgb color is obtained by obtaining the color attribute value, which is not what we want. Therefore, we need to replace the rgb color with the hexadecimal color

Today, most designers and developers are asked to develop dynamic websites. Creating a visually shocking and eye-catching dynamic website is an arduous task because it requires a lot of effort and creativity. There are a large number of tools and

JQuery is not irreplaceable for Excel tables implemented by less than 30 lines of JS Code A foreign programmer shows an Excel table application written by native JS that does not rely on third-party libraries. It has the following features:

Surely everyone is familiar with jQuery, the most popular javascript class library, and as long as it is a front-end developer, it must have been more or less used or used. In this article, we will introduce some principles for writing high-quality

I want to use the Win8 tile interface on the webpage. I was not satisfied with all the resources I found. I wrote a Jquery plug-in myself. It is easy to use. Slide, rotate, drag, click, sort ...... The image is simple and the effect is as