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1, Prepare Ensure that JDK and zookeeper services have been built on the server; If the construction is not completed, please refer to the following articles: Installing zookeeper: https://blog.csdn.net/xuan_lu/article/details/120474451 Installation of JDK1.8: https://blog.csdn.net/xuan_lu/article/details/107297710 kafka official website: ...

Linux three swordsmen grep describe grep – global search regular expression(RE) and print out the line; grep is a text search tool, which can use regular expressions to filter or search text and print matching lines; Mode of use Common options optiondescribe-A <n>Display the filtered text line and the n lines after the line-B ...

To start using Docker Engine on CentOS, make sure   Preconditions met , then   Install Docker. precondition Operating system requirements To install the Docker engine, you need a maintenance version of CentOS 7 or 8. Archive version is not supported or tested. The CentOS extras library must be enabled. This repository is enabled ...

catalogue preface 1, Relationship between netfilter and iptables (1)netfilter (2)iptables 2, Four tables and five chains (1) Four tables (2) Five chain (3) Matching order between rule chains (4) Matching order within the rule chain 3, Installation and usage of iptables (1) Configuration method of iptables firewall (2) iptables comma ...

1. Why k8s v1.16.0? The latest version of v1.16.2 has been tried and can't be installed. After installing to kubeadm init, a lot of errors have been reported, such as node xxx not found ation. centos7 has been reinstalled several times, or can't be solved. It took a day to install and almost gave up. Later, the installation tutorials found ...

Record the errors reported by Centos8 during startup and the solutions Startup error 1: Note: in this case, it means that the Centos8 service has been started, but there is a problem with the interface startup. At this time, it can be used (xshell connection) and the service can be accessed. Solution 1: 1. Use xshell and other soft ...

[transferred from Darshana of FOSS Linux< Installing Sonatype Nexus Repository OSS on CentOS 7 >[translation] Sonatype Nexus is a popular repository manager for most components, binaries, and build artifacts worldwide. It supports the Java virtual machine (JVM) ecosystem, including Gradle, Ant, Maven, and Ivy. Compatible standard tools ...

Preface In some complex Linux maintenance tasks, a large number of repetitive inputs and interactions are time-consuming and error-prone. Writing a proper shell script program can accomplish a series of maintenance tasks in batch and automate, greatly reducing the burden of administrators. 1. An overview of Shell scripts 1. What is a ...

Docker is a lightweight virtualization technology, and lnmp is a powerful, open-source web running environment, so here's a demonstration of using Docker to build an lnmp image. PS: To maintain lightweight and scalable performance, Docker encourages us to "one process per person"Container"means don't integrate too many functions ...

CentOS 7.0 uses firewall as a firewall by default and uses systemctl to manage services and programs, including service and chkconfig 1. View the default firewall status (not running when turned off, running when turned on) [root@localhost ~]# firewall-cmd --state not running 2. Check the status of the firewall [ro ...