DNS ( Domain Name System , the domain Name System), the Internet as the domain name and IP address mapping of a distributed database, to make it easier for users to access the Internet, rather than to remember that can be directly read by the
How DNS works:DNS is a TCP/UDP-based service that listens on port 53.Our usual URLs, such as www.qiuye.com, are actually www.qiuye.com. The last point points to the root server, just because the browser we're using now has an auto-pointing
1. What is DNS?
(Domain Name System) domain name system.
In fact, the functions implemented by DNS are very simple and effective, so that users do not need to remember the IP addresses that frequently access the server, you can directly access the
Original address: http://www.cnblogs.com/hbccdf/archive/2014/03/09/3590916.htmlSince the operating system has been upgraded to 64-bit, there will be a constant need to face 32-bit, 64-bit problems. I believe there are many people who are not very
Rsync working mechanism (translation), rsync working mechanism Translation
This article is an official rsync recommendation article on How Rsync Works translation. The main content is Rsync terminology and a simple version of rsync Working
The following example is mentioned in many of the basic Erlang tutorials on the web today:-module (tut).-export ([DOUBLE/1]).Double (X)2 * X.Then compile the Tut.erl source file in the Erlang shell:1> C (tut).But for a beginner who has just touched
Tags: c file path absolute path relative path slash it classification: C and OPENCV1C file path Why use a double slashBecause \ is an escaped leading character in c/c++/c#, for example \ n represents a line break.
If the path has exactly the same
The so-called forward reference is to use them before defining classes, interfaces, methods, variables, for example,
Class MyClass
{
void method ()
{
System.out.println (myvar);
}
String MyVar = "var value";
}
MyVar is
Experimental Requirements: Establish DNS the principal and subordinate domain name server implements forward reverse queryExperimental steps:1. forward QueryMount and install first Bind Software650) this.width=650; "title=" 1.png "src=" Http://s3.51
Forward references are used before defining classes, interfaces, methods, and variables. For example,
class MyClass { void method() { System.out.println(myvar); } String myvar = "var value"; }
Myvar is defined after
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