1, about/etc/host, hostname and IP configuration file Hosts-the static table lookup for host name (host-Name query-still tables) Hosts file is a Linux system responsible for the rapid resolution of IP address and domain name files, in ASCII format
I. PrefaceIi. Basic Knowledge1. What is an IP address?2. What is a fixed IP address?3. What is a dynamic IP address?4. What is a domain name? What makes a domain name?5. What are subdomain names and second-level domain names?6. What is DNS?7. What
During this time, due to the working relationship, we need to study the working principle of DNS Server Resolution and find this article on CNNIC.Article, Reprinted now
Architecture of CN Domain Name Resolution Service
Hosts bind domain name and IP, but access IP and domain name, out of the content is not the same
The HOSTS file is so bound
119.57.113.31 cloudtest.cnfol.com
The access IP appears to be such content
The output domain name is again the result
List of common error reports for Linux email servers-Linux Enterprise applications-Linux server application information. For details, refer to the following section. Server 400 Error Report
Q: 421 Server too busy
A: Unable to connect because the
What this section says:
Combat: Build Lamp environment and rapid deployment of dual sites and implementation of domain-based virtual hosting
Lamp Architecture:???linux+apache+mysql+phpLinux+apache+mysql/mariadb+perl/php/python A group
I. Overview of the Intranet/Internet platform
, The dotted line below is the Internet, which provides Web Services, DB services, DNS services, exchange services, and so on; The above is the Intranet, which provides services similar to the
UNIX is a very popular network operating system. Using the Domain Name Service function provided by UNIX, it establishes a Domain Name System for the Enterprise Intranet, which can effectively manage the network, it is convenient for users to
Php verification email address class (Classic)
Share a php class to verify the email address. generally, we will verify it through js regular expressions. the code we share here is implemented using native php. if you need it, refer to
Share a PHP class, used to verify the e-mail address, generally we will be through the JS of the regular to verify that the code is shared here with the native PHP to achieve, the need for friends, you can refer to the next.This article provides the
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