switching web hosts without downtime

One, two-machine mutual standby, full automatic switching scheme: 1, Topology map: 　　 2. Explanation: (1), assuming the extranet domain name blog.s135.com to the external network virtual IP 72.249.146.214, LAN hosts set DB10 corresponding

Web Site ServicesFirst, Apache website Service Foundation1.Apache Introduction1) origin of Apache"Apache http Server" Open source software project distinguished representative, using standard HTTP network protocol to provide web browsing services,

I. Apache Website Service Basics 1.Apache Introduction 1) The origin of Apache1. "Apache http Server" Open source software project distinguished representative, using standard HTTP network protocol to provide web browsing services, can run on a

Some time ago, I read the book "large-scale Web Service Development Technology". Today, I used the afternoon to repeat it again, and wrote down the key points, so that I can review and forget it. As you are still familiar with data compression and

Henan College of Traditional Chinese Medicine Course Design Report of MySQL Database Management  Title: Research and Implementation of MySQL Clusters       Completion date:2012January 1, December 31   Contents 1. Course Design overview 3 2. research

Article Title: high-availability server solution for Linux. 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. In

5th Lesson The difficulty of large-scale data processing--memory and disk Bottleneck analysis of single Linux server 1. View Average load Use the top and uptime commands to see the average load; 1, the average load is very low, the system

MySQL performance tuning and Architecture Design-Chapter 1 Performance Design-MySQL Replication and replication Optimization Chapter 1 scalability design-MySQL Replication Preface: MySQL Replication is a unique feature of MySQL. It can completely

From JAVA multithreading to cluster distributed and network design analysis, java Multithreading JAVA multithreading is widely used, and there is almost no way to do it in the current system. In many cases, how to apply multithreading becomes a

High Availability Basics I. Definition of high-availability clustersHigh Availability cluster (hacluster) is a group of computers that provide users with a set of network resources as a whole. These individual computer systems are cluster nodes