Using linux kernel +busybox to customize linux system
Objective:
Understanding the linux startup process
Main contents:
Grub is the bootloader of the boot program
2. linux kernel is the open source kernel of linux
3.busybox is a collection of linux tools
Start sequence:
Grub - > bzimage > initrd > init > chroot SBIN / init > / etc / inittab > fstab > etc / init.d/rcs
Experimen ...
Posted by dschreck on Sun, 09 Feb 2020 20:05:55 -0800
RHCE exam summary (continuously updated)
Environmental preparation
1. Configure YUM software warehouse
server and desktop machine do the same operation!!!!
# // server:
$ vim /etc/yum.repos.d/base.repo
[rhce]
name = EX300
gpgcheck = 0
baseurl = http://classroom.example.com/content/rhel7.0/x86_64/dvd/
### Clear the previous software warehouse cache
$ yum clean ...
Posted by iamyespee on Sun, 09 Feb 2020 03:55:34 -0800
Three ways to install PHP7.4 in Centos8 (Liunx) and three ways to remove it
Compile Installation
Differences and future choices between PHP source compilation and installation via yum under Centos8
Actually, each of these two methods has its own advantages:
yum installation:
From the perspective of Yum installation, Yum is equivalent to automatic help you install, regardless of the software dependencies, the yum ins ...
Posted by Sorthy359 on Sat, 08 Feb 2020 09:50:49 -0800
LVS-DR mode + ldirectord + preserved + Tun tunnel mode + wrr weight
What is LVS?
LVS (Linux Virtual Server), or Linux virtual server, is an open source load balancing project led by DR. Zhang wensong. At present, LVS has been integrated into Linux kernel module. This project implements the load balancing scheduling scheme of data request based on IP in Linux kernel. I ...
Posted by ifuschini on Wed, 05 Feb 2020 02:59:10 -0800
The way of operation and maintenance: DNS service construction and master-slave configuration
Preface
Communication on the Internet needs to be accessed with the help of IP address, but people's memory of numbers is far less than that of words, so it's a good way to convert IP address into easily memorized words, but computers can only recognize 0 and 1 codes. At this time, a mechanism is need ...
Posted by Nathaniel on Tue, 04 Feb 2020 22:53:49 -0800
Redis details - cluster
Redis details (7) - cluster
Before version 3.0 of redis, high availability (HA) can be achieved through Redis Sentinel. After version 3.0, Redis Cluster was officially launched. Its main purpose is to achieve data sharding, but it can also achieve ha, which is currently recommended by the government.
In the Redis Sentinel mode, each node needs ...
Posted by gardnc on Mon, 03 Feb 2020 06:59:45 -0800
Batch deployment of apache based on Saltstack
What is SaltStack
SaltStack management tool allows administrators to create a consistent management system for multiple operating systems
Preparation of experimental environment
Name
role
address
centos7-min
master
192.168.142.172
centos7-min2
client
192.168.142.110
Experimental steps
...
Posted by Adastra on Sun, 02 Feb 2020 07:32:55 -0800
lvs cluster implements lvs Dr model and lvs NAT model
ipvsadm
The ipvsadm command is the management tool of lvs Cluster in the application layer. We can use this ipvsadm to manage the configuration of lvs. In fact, it implements the cluster service management: add, delete, change, RS management of cluster service: add, delete, change and view the cluster status.
Management cluster service: add, ch ...
Posted by frao_0 on Fri, 31 Jan 2020 02:54:13 -0800
LNMP environment setup (php7.3 installation under Centeros 7.7, PHP installation sqlsrv extension)
The article concludes with the material information and installation instructions for this project
Article Directory
1. Basic preparation
2. Install Mysql
3. Install PHP
4. Install Nginx
5. Nginx Integration php
6. Install PHP extensions
END
1. Basic preparation
System Environment
CenterOs7. ...
Posted by crickettdt on Wed, 29 Jan 2020 18:56:20 -0800
Installing mysql under linux
Download mysql
https://cdn.mysql.com/archives/mysql-8.0/mysql-8.0.11-linux-glibc2.12-x86_64.tar.gz
Refer to official information
https://dev.mysql.com/doc/refman/8.0/en/binary-installation.html
1. This version of mysql needs to rely on libaio library. If not, you can download it using yum
shell> yum search libaio
shel ...
Posted by djkanebo on Tue, 28 Jan 2020 07:19:35 -0800