Formal Learning linux-17

1. Configure iscsi server Tagetcli is a dedicated configuration command for managing iSCSI server-side storage resources, which provides interactive configuration capabilities similar to fdisk commands. [root@linuxprobe ~]# targetcli Warning: Could not load preferences file /root/.targetcli/prefs.bin. targetcli shell version 2.1.fb34 Copyr ...

Posted on Sat, 28 Mar 2020 01:01:31 -0400 by crazykid

Linux (CentOS7) uses RPM to install mysql 8.0.11

1, Installation preparation 1. View Linux related information (Linux command line operation) (1) Check the Linux version to download the corresponding mysql. [See Linux Message: uname -a     (2) check whether mysql has been installed. [check whether mysql is installed] rpm -qa | grep -i mysql, if installed, will output the relevant ...

Posted on Thu, 26 Mar 2020 08:57:43 -0400 by planetsim

Large website architecture - million PV websites

Experimental architecture: The black line is the flow direction of normal data Red is the data flow direction under abnormal conditions Experimental environment: Centos7-1 (Master) 192.168.13.128 nginx reverse agent (Master), redis cache processor (Master), mysql database (Master) Centos7-2 (backup) 192.168.13.129 nginx reverse agent (standb ...

Posted on Tue, 17 Mar 2020 10:55:55 -0400 by True`Logic

Step by step from Debian installation to environment building

debian Download https://mirrors.ustc.edu.cn Image of CUHK Install directly without: graphic install debian garbled When you install debian in the simplest way, because there is no Chinese character library, if you choose to look at the Chinese environment, there will be diamond code. Let's change zh.utf8 to us.utf8 first. 1,apt-get update 2,su ...

Posted on Fri, 13 Mar 2020 00:07:24 -0400 by guayaquil

Centos7 zabbix4.0 service deployment

Monitoring service deployment environment: System version: [root@localhost ~]# cat /etc/redhat-release CentOS Linux release 7.6.1810 (Core) zabbix version 4.0 First process: Download update yum sourceTip: there are two ways: official source and Tsinghua source. Considering the download speed, I chose ...

Posted on Wed, 19 Feb 2020 06:41:00 -0500 by playaz

0429 how to install HDP3.0.1 in RedHat 7.4

Warm tip: if you can't see the picture clearly by using the computer, you can use the mobile phone to open the article and click the picture in the article to enlarge and view the original HD picture. github of Fayson: https://github.com/fayson/cdhproject Tip: the code block can be viewed by sliding le ...

Posted on Tue, 18 Feb 2020 03:02:35 -0500 by sharal

MySQL must know must know -- view, stored procedure

I. view 1. Understanding views A view is a virtual table. Unlike a table that contains data, a view contains only queries that retrieve data dynamically when in use. SELECT cust_name,cust_contact FROM customers,orders,orderitems WHERE customers.cust_id = orders.cust_id AND orderitems.order_num = ord ...

Posted on Sat, 15 Feb 2020 07:46:21 -0500 by abasel

zabbix construction deployment and monitoring management -- Practice

Role deployment: CentOS 7-2: 192.168.18.147 (monitoring end: deployment and installation zabbix) CentOS 7-3: 192.168.18.128 (monitored end) Monitoring end operation: [root@cacti ~]# systemctl stop firewalld.service #Turn off firewall function [root@cacti ~]# systemctl disable firewalld.service #Turn on and disable firewall function ...

Posted on Tue, 11 Feb 2020 04:24:40 -0500 by flycast

MySQL in python

1> Installation of mariadb under. Linux 1.Find and mariadb Relevant security subcontracting version yum search mariadb 2.install mariadb Customer and service packages for yum install mariadb mariadb-server.x86_64 -y 3.start-up mariadb service systemctl start mariadb systemctl enable mariadb 4.maria ...

Posted on Fri, 07 Feb 2020 06:26:53 -0500 by samyl

Mysql multi instance configuration

Multi instance configuration of MySQL In a physical machine, multiple test environments are needed, so multiple instances of building database are needed. Multiple instances means running multiple programs, and there is no influence between instances. Note that the ports you listen to need to be different. That is to say, running many mysql in ...

Posted on Fri, 31 Jan 2020 14:54:36 -0500 by lunarul