Programmer Group

Common Web Cluster Schedulers At present, the common Web cluster scheduler is divided into software and hardware. Software usually uses open source LVS, Haproxy, Nginx. Hardware usually uses F5 more. Many people also use some domestic products, such as pike, green league, and so on. Haproxy application analysis LVS has a strong anti-load capab ...

1. Download MySQL 5.6.36 compile free installation package and upload it to / usr/local/src directory (you can also use wget command to download it directly to this directory) Download address https://yunpan.360.cn/surl_ymCGfFYt2Ya 2. Decompression [root@JSH-01 src]# tar zxvf mysql-5.6.36-linux-glibc2.5-x86_64.tar.gz 3. Move the extracted file ...

After posix standard was introduced, socket has been well supported on all major OS platforms. Golang is a cross platform programming language with runtime. The socket API provided to developers in Go is based on the native socket interface of the operating system. But the behavior of socket interface in golang is different from that of native ...

Environmental installation Foreplay Basic knowledge needed: Network configuration: Reference resources Share path: Reference resources Required software & Image VirtualBox: the best free virtual machine software The download address is as follows (install the software suitable for your own operating system): https://www.virtualbox.org/w ...

1.firewalld sharing Internet 1. Server operation (server with external network) 1. Turn on the firewall and join the startup [root@zeq ~]# systemctl start firewalld [root@zeq ~]# systemctl enable firewalld 2. Remove the rule that the default owner can access ssh [root@zeq ~]# firewall-cmd --remove-service=ssh --permanent 3. Add only allow 10.0. ...

For the working principle and overview of LVS load balancing, please visit: LVS load balancing cluster of Centos 7 For detailed configuration of load balancing cluster in address translation (NAT) mode, please visit: Building load balancing cluster based on address translation (LVS-NAT) mode I. start to configure DR mode LVS preparation:Four C ...

Deployment architecture: I. installing docker Only docker18.06 is supported at this time 1.1. Add source: # yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo 1.2. View package: # yum list docker-ce.x86_64 --showduplicates | sort -r 1.3. Install docker # yum -y install docker-ce-18.06.0.ce-3.el7 Th ...

One preparation 1.1 complete architecture: Kickstart+DHCP+NFS+TFTP+PXE 1.2 component application Kickstart server IP: 172.24.8.12 DHCP: provide client IP, gateway, image path, etc; TFTP: sharing pxelinux.0, initrd.img, vmlinux, isolinux.cfg, boot.msg, vesemanu.c32, splash.png files NFS: share ks.cfg and all CD files Note: this ks.cfg file and a ...

Environmental Science Linux 3.10.0-693.el7.x86_64 Docker version 18.09.0 docker-compose version 1.17.0 install Required dependencies for installing docker $ sudo yum install -y yum-utils device-mapper-persistent-data lvm2 Install docker CE $ sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo $ s ...

Experimental environment Nginx server (192.168.13.177) Tomcat1 server (192.168.13.151) Tomcat2 server (192.168.13.178) client tester I. load balancing 1. Install Tomcat service on Tomcat1 and Tomcat2 [root@tomcat1 ~]# systemctl stop firewalld.service ##Turn off firewall [root@tomcat1 ~]# mkdir /abc [root@tomcat1 ~]# mount.cifs //192.168.100.3 ...