Programmer Group

Replace yum warehouse source cp -r /etc/yum.repos.d/ /etc/yum.repos.d.bak 񖓿 configuration of warehouse source of backup system rm -f /etc/yum.repos.d / * ා delete all warehouse source configurations cd /etc/yum.repos.d / ා enter the warehouse source directory wget http://mirrors.163.com/.help/CentOS7-Base-163.repo(wget installation: yum insta ...

1. Application scenario: In some application scenarios, Linux servers need to install application packages through yum, but these Linux servers may not be able to connect to the external network, but there is no corresponding Yum server inside. At this time, find a server that can access the external network inside to configure a proxy, and th ...

Antecedents and consequences Recently, I'm not busy with my work. I'm going to study automated packaging. The goal is to package automatically through jenkins and copy it to a specified directory. target git updates the code and jenkins automatically packages and deploys First install jenkins Look at the document jenkins need Docker installatio ...

1. Introduction to inotify Inotify is a powerful, fine-grained, asynchronous file system event monitoring mechanism (software), linux kernel from 2.6.13, joined the Inotify support, through Inotify can monitor the file system to add, delete, modif ...

Openstack Cloud Computing (2): Openstack Rocky Deployment Tri nova Deployment and Validation (Computing Node) Tags (space delimited): openstack series First: nova compute node initialization 2: nova Computing Node Configuration First: nova compute node initialization 1.1 Configuration Host Name login: 10.0.0.31 cat /etc/hosts --- 10.0 ...

Batch distribution and execution of script keys Label (Space Separation): Linux Service Architecture - Chen Siqi This teaching note is a summary of my study and work career, which is the first draft (there are many imperfections), the original work, allowed to be reproduced, when reproduced, please be sure to indicate the original source of the ...

Section 23 Intify Event Monitoring Tool Label (Space Separation): Linux Practical Teaching Notes - Chen Siqi This teaching note is a summary of my study and work career, which is the first draft (there are many imperfections), the original work, allowed to be reproduced, when reproduced, please be sure to indicate the original source of the art ...

1. Launching zabbix-server on CentOS 7 failed. The error message in / var/log/messages is as follows: Feb 22 12:56:43 mysql-server1 systemd: Starting Zabbix Server with MySQL DB... Feb 22 12:56:43 mysql-server1 kernel: zabbix_server[1599]: segfault at 18 ip 00007fce09ca6bd0 sp 00007fffa39b7808 error 4 in libpthread-2.17.so[7fce09c9d000+1600 ...

One background RHEL and its derivatives, such as CentOS and Scientific Linux, are often lagging behind the rpm packages provided by the official rpm repository for stability, and EPEL can solve these two problems. The full name of EPEL is Extra Packages for Enterprise Linux. EPEL is a project built by the Fedora community to provide high-qualit ...

redis is also known as caching 1.redis is a key-value storage system with no fields for ForeignKey and ManyToMany. 2. Data created in redis are not related to each other, so they are also called non-relational databases. 3. It supports the storage of data types including string, list, set, zset(sorted set -- ordered set) and hash (hash type). 4 ...