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I. Pre-conditions Hadoop runs on JDK and needs to be pre-installed. The installation steps are as follows: Installation of JDK under Linux Configuration of Secret-Free Login The communication between Hadoop components needs to be based on SSH. 2.1 Configuration Mapping Configure ip address and host name mapping: vim /etc/hosts # Increase at ...

For a detailed description of the basic configuration of LVS, please refer to the blog: https://blog.51cto.com/14227204/2436891Case environment:The results are as follows: Using the cluster technology of NAT mode, LVS load dispatcher is the gateway server for all nodes to access the Internet, and its 200.0.0.1 is also the VIP address of the w ...

SpringBoot e-commerce project mall (20k+star) address: https://github.com/macrozheng/mall abstract This article mainly introduces how to package SpringBook applications into Docker images using Maven plug-ins and upload them to Docker Registry, a private image warehouse. Docker Registry Docker Registry 2.0 Architecture docker run -d -p 5000:50 ...

Contents System Service Management file management view log Compression and decompression Disk and Network Management firewall ftp operation Installation and Management of Software Other System Service Management systemctl The state of each service in the output system: systemctl list-units --type=service View the running status of the serv ...

iptables The iptables service is used to process or filter traffic policy items (rules). Multiple rules can form a rule chain, which is categorized according to the location of data packet processing. Preprocessing data packets (PREROUTING) before routing; Processing incoming data packets (INPUT); Processing Outgoing Packets (OUTPUT); Proc ...

Both gateway server and website server adopt centos 7 operating system. Gateway servers are equipped with three Gigabit Network cards, which are connected to Internet, intranet and website servers respectively.The requirements are as follows: The gat ...

Requirements: Turn off your own DHCP service in VMware Virtual Network Editor Host Name operating system IP Address NoneOS Centos7 192.168.72.250 Custormer nothing       1. Hang in local mirror source This configuration Yum repository, install DHCP service [root@NoneOs ~]# yum install dhcp -y 2. Configuring DHC ...

Absrtact: This paper mainly studied how to configure firewall in Linux system. iptables command Iptables is not exactly a firewall, the real firewall is a Netfilter running in the system kernel, and iptables is only a tool to operate netfilter. Its main function is to interact with users, get the user's requirements, and convert them into inf ...

Monitoring: Sentinel constantly checks whether your master and slave servers are functioning properly. Notification: Sentinel can send notifications to administrators or other applications through the API when a Redis server being monitored has problems. Automatic failover: When a primary server does not work properly, Sentinel starts an aut ...

This article is based on other blogs + your own practice, not just paste and copy.Most of them are their own content, if you find infringement please inform keepalived+nginx dual-machine warm-up 1 Configure VIP 2 Install keepalived 3 Configure ke ...