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preface WebLogic is an application server produced by American Oracle company, specifically a middleware based on JAVAEE architecture. Java application server is mainly used to develop, integrate, deploy and manage large-scale distributed Web applications, network applications and database applications. In recent years, many RCE vulnerabilitie ...

1. Principle of redis master slave + sentry First, we need to know the consistency hash algorithm, which works by storing data clockwise to the nearest redis server, or possibly by calculating the value of the key from the hash algorithm The hash value is exactly the address value of the redis server. The reids master slave + sentry implement ...

Self operation and maintenance deployment of docker+jenkins+vue+nginx+gitee Deployment idea: 1: First, the normal manual deployment is actually very simple 1. Under the completed project root directory npm install npm run build 2. If successful, a built directory dist will be generated 3. Then put this folder in the default generated htm ...

Recently, the company plans to use docker to manage the application. Because the company is an intranet environment, the image can only be imported into the Intranet environment through U SB flash disk. Although docker has image import and export, it will not be repeated here. However, if you want multiple people to use the image, you don't nee ...

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 ...

Installing Gitlab Setting environment variables export GITLAB_HOME=/srv/gitlab Write docker-compose.yml [root@origin ~]# mkdir -p /opt/docker-compose/gitlab [root@origin ~]# vim /opt/docker-compose/gitlab/docker-compose.yml version: '3.8' services: gitlab: hostname: 'abc.efg.xyz' image: 'gitlab/gitlab-ce:14.2.4-ce.0' re ...

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 ...

Docker Refer to learning video: [crazy God talking about Java] Docker's latest super detailed tutorial is easy to understand 1, Docker overview 1.1 why does Docker appear? One product: development – online two sets of environments! Application environment, application configuration! Development - operation and maintenance. Question: ...

Private mirror warehouses have many advantages 1) Save network bandwidth, do not download from the central warehouse by everyone for each mirror, just download from the private warehouse; 2) Provide mirroring resources for internal use and push them to local private warehouses for internal use. VMware has an open source enterprise Registry proj ...

What is smoking? Smokeping is an open source software for monitoring network status and stability (developed by the author of RRDTool). It can monitor network conditions such as delay, packet loss rate, BGP multi line and so on; Smokeping will send various types of test data packets to the target equipment and system, measure and record, ...