what s subdomain

Author: syd168 15:09:18 from: Mr. Linux I. Basic DNS knowledgeAs we all know, in network communication, data links Use MAC addresses. The network layer uses IP addresses, and the transport layer uses port numbers,

cross-domain issues are often used in cooike and sessions, but php is relatively simple for subdomain processing, and we have a number of ways to below to tidy up , I hope that everyone's php learning to help it . The Session is divided into two

1. Cross-domain and cross-server solutionsThe session is divided into two main parts:One is session data, which is stored in the server's TMP file by default, and is in the form of a fileThe other is the session Id,session ID that indicates session

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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

A: What is DNS why there is DNSDomain Name Systems (English: Domain Name System, abbreviation: DNS) is a service of the Internet. The internet was born early because the number of access to the Internet is very small, there is no dedicated DNS

RNDC Related knowledge:1. What is RNDC:Remote Name Domain controllerRNDC communicates with the name server via a TCP connection and sends a digitally signed command. In the current version of RNDC and named, the only supported authentication

The Session Description Protocol (SDP) provides multimedia session descriptions for session notifications, session invitations, and other forms of multimedia session initialization.   The session directory is used to assist with multimedia

PHP's hyper-global variable $ _ COOKIE brings a lot of convenience and may also cause confusion in some cases. For example, if a cookie with the same name exists in the root domain and subdomain, $ _ can only save one COOKIE. Which one should it

In fact, Tornado sub-domain name and the pan domain name (in addition to special instructions, the following sub-domain name and the pan domain name are referred to as the pan domain name) is not new, two years ago I wrote with Tornado Open source