Programming VIP

Epoll is an event driven model, which is one of the important reasons why nginx can efficiently handle client requests. From the flow point of view, the use of epoll model is mainly divided into three steps: the creation of epoll handle, listening to the addition of file descriptors and the triggering of waiting events. This paper will introduc ...

Several ways to deploy various projects with tomcat + nginx Background introduction Skills list (multi-project deployment) Multiple tomcat environment variable configurations and common part modifications Deploy the zip package using tomcat + nginx.Custom Deployment Directory Deploy the war package ...

LNMP Basics What is LNMP One of the mainstream enterprise website platforms 50: Linux operating system N:Nginx website service software M:MySQL.MariaDB database P: Website development language (PHP.Perl.Python) Difference between static website and dynamic website Static web page: (1) Static w ...

Overview of fastDFS _FastDFS is an open source, lightweight, distributed file system, which manages files, including file storage, file synchronization, file access (file upload, file download), etc. It solves the problems of mass storage and load balancing.It is especially suitable for online services with files as carriers, such as photo al ...

Single master model IPVS example Configure keepalive Example of highly available ipvs cluster: modifying the keepalived configuration file Modify the keepalived configuration file of the host: 192.168.234.27 1 [root@234c27 ~]# vim /etc/keepalived/keepalived.conf 2 ! Configuration File for keepalived 3 4 global_defs { 5 notification_ ...

Nginx access log 1. Open the configuration file and search for log? Format vim /usr/local/nginx/conf/nginx.conf 2. Meaning of common variables in access log $remote_addr: client IP (public IP) $HTTP "X" forwarded "for: IP of proxy server $time_local: server local time $host: access host name (domain name) $request_uri: url add ...

1. Install hubot 1.1 install node.js and npm yum install -y nodejs npm npm install -g inherits n yum install -y curl 1.2 install yo generator hub npm install -g yo generator-hubot npm install coffee-script -save //The following packages are optional: npm install hubot-test-helper --save-dev npm install expect.js npm ...

Docker officially encapsulates the warehouse as an image. You can deploy the warehouse directly by starting the container Experimental environment Physical machine 172.25.41.250 I. warehouse authentication mechanism 1. certificate [root@foundation41 docker]# docker run -d --restart=always --name registry -v ` ...

1, Install docker Environment: YUM source for rhel7.3 [root@18 docker]# yum install docker-engine-17.03.1.ce-1.el7.centos.x86_64.rpm -y [root@18 docker]# yum install docker-engine-selinux-17.03.1.ce-1.el7.centos.noarch.rpm -y [root@18 docker]# systemctl start docker.service ##View docker version [root@18 docker]# docke ...

Example topology: DR1 and DR2 deploy keepalived and lvs as the master-slave or master architecture, and RS1 and RS2 deploy nginx to build web sites. Note: the time of each node needs to be synchronized (ntpdate ntp1.aliyun.com); turn off firewalld (systemctl stop firewalld.service, systemctl disable firewalld.service), and set selinux to allow ...