Docker's NameSpace and Group C

Docker container technology is essentially different from traditional virtualization technology. Traditional virtualization technology virtualizes multiple OSs on the basis of physical resources of station hardware, and then builds a relatively independent program running environment on the basis of OS. Docker is virtualized on the basis of OS ...

Posted on Mon, 14 Oct 2019 10:51:19 -0700 by DeGauss

Delete Linux dependency libraries and enter rescue mode recovery

Simulate the dependency library file being deleted and restored in rescue mode System: CentOS7 1. Delete mv dependency library files Delete/lib64/libc.so.6 [root@centos7 Packages]# which mv alias mv='mv -i' /usr/bin/mv [root@centos7 Packages]# ldd /usr/bin/mv linux-vdso.so.1 => (0x00007ffd51946000) libselinux.so.1 => /lib ...

Posted on Fri, 11 Oct 2019 10:39:52 -0700 by nolos

Operational examples of [docker project]

In [info] production, containers are usually created by dockerfile and docker-compose is used to link containers. General operating procedures # Start docker systemctl start docker systemctl status docker # Go to the warehouse and get the mirror first. docker search ubuntu docker pull ubuntu docker images # Run Mirror Container - dit enters d ...

Posted on Wed, 09 Oct 2019 10:47:21 -0700 by MrSarun

centos Enterprise Flexible Expansion of the / home Directory (No Restart)

Requirements: On-line machine/home directory has insufficient memory and needs to expand memory to maintain the normal operation of the service 1. View the memory condition and configuration partition on the server 1. View disk information / home directory type is lvm logical volume [root@GDI2154 ~ ...

Posted on Tue, 08 Oct 2019 14:20:12 -0700 by JamesWebster

Encapsulating java applications with Docker

This article describes how to encapsulate a java application (cspj) using docker applications. This java application involves data persistence and RMI calls. 1. Introduction to docker docker is a container technology that encapsulates operating systems, file systems, networks, and so on, enabling the processes to run intact. Docker and virtual ...

Posted on Fri, 04 Oct 2019 12:38:01 -0700 by keigowei

Testing vShere 6.7 + vCenter Server on Workstation 15

If you want to learn vSphere, you'd better build a corresponding learning environment on your computer. _________________________________ | | | vCenter Server Appliance | |________________________________| ...

Posted on Thu, 03 Oct 2019 18:52:59 -0700 by Stray_Bullet

Installation of MariaDB using cmake compilation under Centos 6

Written in front Recently in learning Maria DB, in order to facilitate access, and in order to reorganize the knowledge learned, I specially write this essay, hoping that later reading can have some feeling, but also hope to help you. Pre-installation preparation As you all know, there are three ways to install software on Linux: 1. rpm pack ...

Posted on Wed, 02 Oct 2019 21:25:58 -0700 by aidude111

Installation and configuration of keepalived under Linux

Pre-installation preparation Basic System: CentOS 7 yum -y install gcc gcc-c++ autoconf automake make yum -y install zlib zlib-devel openssl openssl-devel pcre pcre-devel 1. Download keepalived Method 1: yum -y install keepalived Method two: Download the binary source package: http://www.keepalived.org/dow... #Download installation files c ...

Posted on Tue, 01 Oct 2019 06:05:04 -0700 by eyeself

LVM Dynamic Expansion of CentOS 7

The question of "Qi" The disk space on CentOS 7 is a little tight and needs to be expanded. Solve Query the current disk status [root@xxx ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT fd0 2:0 1 4K 0 disk sda 8:0 0 200G 0 disk ├─sda1 8:1 0 500M 0 part /boot └─sda ...

Posted on Mon, 30 Sep 2019 12:42:14 -0700 by toppac

Internal and external command assistance

View internal and external command help I. Internal Order _Use type to determine whether the command is internal or external, and type is followed by the command to be viewed. Example: type enable [10:52:18 root@centos ~]#type enable enable is a shell builtin Some commands have both internal and external commands, but the system will give pri ...

Posted on Mon, 23 Sep 2019 23:48:14 -0700 by prasad_deba