BIND9 Source Learning Note 1---gdb debug Chapter

Before you learn bind9 source code, you must first know how to debug bind with GDB. BIND9 source I was to see the code first to understand its architecture, such as what Event-drive,epoll,Then look at its business process. Look at the business

Database Tuning Tutorial (12) Optimizing SQL statements

V. Optimizing SQL statementsThe previous chapter tells you how to design a good table, and a good table naturally requires a good SQL statement to manipulate it. This chapter will talk about how to optimize SQL statements.1. SQL Statement

JDK 1.6 Internal Error (verifier.cpp:1524) Guarantee (cp->cache () = = NULL)

There are now several WebLogic 10.3 services posted on Windows, with the JDK using:# JRE Version:6.0_31-b05# Java Vm:java HotSpot (TM) 64-bit Server VM (20.6-b01 mixed mode windows-amd64 compressed oops)phenomenon: The node stops without any

March domestic Operating system market share: Win 7 Ju Asia soaring 1.93%

IDC Commentary Network (idcps.com) April 07 reported: According to the latest data from Baidu statistics show that in March, the domestic operating system market share competition, Win 7 soared 1.93%, rose to 44.08%, with a share of 44.57% of the

Example: Make an alarm clock. Focus on learning the flexible use of datetime, jump statement

DateTime a = datetime.now;//Gets the time of the computer nowDateTime NZ = convert.todatetime ("2015-4-14 22:44");//define the time of the alarmwhile (true){A = a.addminutes (1); Display time, one minute plus one minute displayConsole.WriteLine

Some column security issues raised by the Crossdomain.xml security policy file

This is a thought caused by crossdomain.xml security policy file, not steamed bread, not a bloody massacre!! The first knowledge is a few years ago when the first contact with Flex, that will mengmengdongdong solve the problem, and now deal with

Django Primer Example of the liberated Jiang GE--03 so-called Iraqis (template and template processing)

In the previous program, we directly generated a string, which is returned to the client as an HTTP reply. Django.http.HttpResponse () was used in this process.In this kind of response generation process, we actually mix the data and the view format

Stanford University-machine learning public class-2. Supervised learning applications • Gradient descent

The study of this class, I believe that generally on the statistics or logistics related courses should be known to some students. Although the knowledge involved in class is very basic, it is also very important.Based on the collection of some

Microsoft Server Labs can't do it? The Dragon is right for us!

Now the focus of Microsoft server training institutions, in reading students and the community into the young people are everywhere, the gold medal lecturers have, the course is a more than a full, what Windows Server2012,Exchange Server ,Lync

Benefits of Base64

1.As mentioned in yesterday's MIME note, MIME mainly uses two encoding conversions----quoted-printable and Base64----Convert 8-bit non-English characters to 7-bit ASCII characters.Although this is intended to satisfy the requirement that non-ASCII

Penetration testing IP and domain name information collection verification

1. IntroductionWhen an individual or business entity registers a domain name with a lot of information to register, the settings for registering privacy are various, and we can collect this information and use it to verify the IP space. Based on

INFORMATICA's meta Data Management II: Running status information query

The project of two buddies to do about the running status metadata of the two job is cool, the recent period of good health, their reference to learn at the same time to do log records, hehe, in order to save ink, related metadata table structure

Let the mad cow cool down. 30 IPOs in Wholesale

Let the mad cow cool down. 30 IPOs in Wholesaleediting time: 2015/04/03 Source: Daily News Network Trust HomeOn April 2, 30 IPOs were approved by the SFC for IPO applications. In the 4th month of 2015, the SFC issued an IPO approval of 4 batches of 9

Enter a line of characters to count how many words there are, separated by spaces between the words

Problem Description: Enter a line of characters to count how many words there are, separated by spaces between the wordsProblem Solving Ideas:To determine whether the word appears, you can use the appearance of the space to judge (a continuous

DNS Domain name resolution

DNS (Domain Name System)In the Internet, the client and server communicate with each other using an IP address, but 32-bit integers are too difficult for people to remember, so the Internet defines the domain name and the mechanism for mapping the

Various balance trees treap/sbt/avl/splay tree

Looking at the balance tree for so long, it is time to make a summary.Take POJ 3481 For example, knocked four code, respectively treap, Size Balance Tree,avl tree,splay Tree.The only less red and black trees t_t ...In general, each of the balance

WordPress Theme Creation Tutorial 9: Article form

WordPress Article form:Aside-----------------log: Standard article with no title displayedImage--------------Images: Single image. The first tag in the article will be considered as the image.Video---------------Videos: Single video.Quote-----------

ARM Development Board Load Realtek-8188cus USB wireless card (i)

Platform parameters: Kernel: Linux 3.6 file system: Busybox-1.20.2 hardware parameters: s3c2416In the Arm-linux support and auto mount USB drive has been verified that the USB interface is completely normal, so do not worry about hardware

Overview of Design Patterns

1. Design modeDesign patterns are a set of reusable, most known, categorized purposes, code design experience Summary. Design patterns are used in order to reuse code, make code easier for others to understand, and ensure code reliability. There is

Some basic operations of OSX terminal command line

This article reprinted to http://blog.csdn.net/xdrt81y/article/details/24058959OSX terminal commandsSome basic operations of OSX terminal command lineSome basic operations on the terminal command line many friends are scratching their heads at the

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