root server

I. preparations: 1. install required software: yuminstallgcccccl I. preparations: 1. install required software:   Yum install gcc cc cl 2. install mysql Download official website release package, http://dev.mysql.com/downloads/repo/

As we all know, Microsoft Windows provides a Remote Desktop. the default port of this service is 3389, which enables users to remotely log on to the system for system management or run various applications as terminal servers. To connect to Windows

In actual application, DNS resolution errors may occur, that is, when we access a domain name, it cannot be resolved to an IP address, however, you can directly enter the website IP address for normal access, which is caused by a DNS resolution

The DNS server provides services to convert host names and domain names to IP addresses. Why do I need to convert host names and domain names to IP addresses? This is because when a client on the network accesses resources on a serverThe Host Name

As shown in the following figure, this task consists of the high-availability server Load balancer component and cache DNS. High-availability server Load balancer component requirements: optimize some key links in the business system architecture,

1. sudo apt-get install xinetd telnetd2. After the installation is successful, the system will be prompted accordingly.sudo vi/etc/inetd.conf and add the following lineTelnet Stream TCP nowait telnetd/usr/sbin/tcpd/usr/sbin/in.telnetd3. sudo

Article Title: How DNS works. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. DNS (Domain Name System) is

Run commands in batches in linux screen creation-general Linux technology-Linux technology and application information. For more information, see the following. In the CRT terminal interaction window, the following commands can be executed in

Rsync + sersync for real-time file backup Part 1: operate on the target server 192.168.0.2171. Install Rsync on the OA file backup server1. Disable SELINUXVi/etc/selinux/config # edit the firewall configuration fileThe Code is as follows: # SELINUX =

& Amp; nbsp; an application needs to run on a linux server. it is not realistic to ensure that each server has a library on which the application depends, nor to install each server, so compile all the databases used by the application as static

Blog jobs: Using httpd-2.2 and httpd-2.4 respectively1, the establishment of HTTPD services, requirements: (1) provide two name-based virtual host WWW1, WWW2; there are separate error logs and access logs; (2) Provide status information through WWW1

Blog jobs: Using httpd-2.2 and httpd-2.4 respectively1, the establishment of HTTPD services, requirements: (1) provide two name-based virtual host WWW1, WWW2; there are separate error logs and access logs; (2) Provide status information through WWW1

Route rewriting is an important basic function in Web servers. Through route rewriting, you can structure URLs and make them more semantic (good for SEO ). In addition, shared URLs may become invalid due to program route changes, and rewrite of

First, the host resolves the order of the domain name1. Find the Cache2. Find the Hosts file for this machine3. Find the DNS serverNote: When configuring IP and hostname, remember to modify the/etc/hosts file, because some applications in the host

$ _ SERVER ['server _ SIGNATURE '] # a string containing the SERVER version and virtual host name. $ _ SERVER ['path _ TRANSLATED '] # Basic PATH of the file system where the current script is located (not the root directory of the document. $ _

Friendly tip: The experimental platform of VMware + Centos6.6 x86_64, the command involved only for the implementation of the work model, not as a production server configuration basis. Content Summary:Working model of 1.DNS2.DNS positive and

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

Linux memory cleanup command and linux cleanup command1. memory usage before cleanupFree-m 2. Start cleaningEcho 1>/proc/sys/vm/drop_caches3. memory usage after cleaningFree-m4. Done! Run the following command to view the number of memory entries: #

About 50 pieces of graphs monitored by cacti on the mysql server have been obtained and shown. Some problems have been encountered and the impressive records are as follows:(1 ):Add io monitoring   Click Create Graphs for this Host to Create an IO

DNS Client configuration files: 1)/etc/hosts 2)/etc/resolv. conf 3)/etc/nsswitch. confThe/etc/hosts file records the relationship between the IP address and the host name. The/etc/resolv. conf file is used to configure the DNS server, as shown below: