Linux

# Coding = utf8# LINUXQQ for crawler data v0.1Import OSImport reImport urllib Videourl = 'HTTP: // www.centoscn.com /'Rootdir = 'd: \ video \\' Def progress (blocknum, blocksize, totalsize ):Per = 100.0 * blocknum * blocksize/totalsizeIf per>

The default Mysql configuration of DirectAdmin is insufficient for large-volume virtual host servers, which brings great load to the system. On the Internet, I have referenced some MYSQL-related optimization parameters suitable for DA, I would like

There are many website stress testing tools, linuxVPS learners have previously written two powerful website stress testing tools: test Web engine performance using Apache fuse and test Web engine performance using http_load. however, they have many

Although Linux is free, there is no such thing as pie in the world. After all, many functions are not complete. Recently, overseas spending on Linux has become the biggest cause of user departure from Linux. Seven reasons for giving up Linux: 1.

I. background We found that many of the company's projects use memched. The memched server is also a single point of failure, which will affect the business. Therefore, Baidu found that memched could not be deployed in clusters and did not see any

** Install the Operating System1. There is nothing to say about the installation process. Pay attention to the partition;2. if the system is reinstalled, in order to prevent partition table errors, the C disk is generally not deleted, but the new

1. Download the official Tomcat monitoring module tomcatstats-0.zip( )))tomctomctomctomctomctomctomctomcatstats-0.zip 2. decompress the package and upload the tomcat. pl executable program to the cacti deployment directory/var/www/html/cacti/scripts.

Find the site-packages directory in the python path used by the zope instance, create a sitecustomize. py file in this directory, and set the corresponding permissions. The file content is as follows: Import sys Sys. setdefaultencoding ("UTF-8

At present, many enterprise information systems have their own monitoring platforms and monitoring methods. No matter which method is used to achieve real-time monitoring of the system and fault alarms, there are only two methods used: i.

The module is written in a class and has only one StringIO class, so its available methods are all in the class.Most of the functions in this class are similar to file operations.Example:1 # coding = gbk23 importStringIO, cStringIO, sys45S =

About a month ago, I received an interview call. One of the questions was to ask me to talk about SQL optimization. At that time, I didn't know how to answer it. I don't know how to answer these questions, not because I don't understand SQL

The has_key () method can check whether the dictionary contains the specified key. If yes, True is returned. Otherwise, False is returned.Syntax format:Dictionary_name.has_key (key) Dict1 = {'01': 'yangry', '02 ': 'weild', '03': 'hexh', '04':

During the project implementation, we found that some companies are engaged in promotional websites or information websites, and their servers are all placed in China. They do not know much about the cluster and the requirements are very simple,

Write the alarm program under windowns, and there is an alarm sound implementation. There is a winsound module in python that can be implemented, the method is also very simple: import timeimport winsounddef play_music():

1 ,__ name _ attribute The _ name _ attribute is used to determine whether the current module is a program entry. If the current program is in use, the value of __name _ is _ main __. When writing a program, you usually need to add conditional

To compile a server in python, follow these steps: The first step is to create a socket object. Call the socket constructor. For example:Socket = socket. socket (family, type)The family parameter represents the address family, which can be AF_INET

I believe that many webmasters will first perform local tests when performing the tests. Generally, localhost or 127.0.0.1 is used to access the local environment. What is the difference between localhost and 127.0.0.1? Which one is better? Many

Today, Linus Torvalds officially released Linux kernel 3.12. The new version introduces a new CPU frequency manager. Linux kernel 3.12 Update log: -- Optimizes the CPU frequency manager to more effectively implement the dynamic frequency

Summarizes the practical experience and lessons learned by domestic network and game companies in running backend servers. These rules apply to large systems with daily access volumes ranging from 10 thousand to millions. In our company

Linux has worked hard for many years behind the Enterprise. Now it is becoming increasingly popular in office businesses, whether it is small businesses or large enterprises. Which Linux applications are suitable for IT managers and business owners?