Installation process of NPC Jincang kes86 database under CentOS7 environment

Confirmation before installation Operating system: host name, IP address, hairstyle version, kernel version [root@localhost ~]# hostname localhost.localdomain [root@localhost ~]# [root@localhost ~]# ip -4 a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN inet 127.0.0.1/8 scope host lo valid_lft forever p ...

Added by Goofan on Thu, 30 Dec 2021 20:37:54 +0200

Special exercises of ansible module

file module The keywords of this module include path, path of the controlled host, state status, touch to create file, directory to create directory, recursion, owner's master, group, and mode permission. 1. Create a file and set the owner, group and permission [root@localhost opt]# ansible dbserver -m file -a "path=/var/www/html/xjm.html st ...

Added by corruption on Thu, 30 Dec 2021 20:09:13 +0200

acme.sh issue SSL certificate free of charge

acme.sh overview An ACME protocol client written purely in Shell (Unix shell) language.Complete ACME protocol implementation. Supports ACME v1 and ACME v2 wildcard certificatesSimple, powerful and easy to use. You only need 3 minutes to learn it.Let's Encrypt free certificate client is the simplest shell script.It is written purely in Shell an ...

Added by NewBob on Thu, 30 Dec 2021 13:55:48 +0200

linux readdir,d_name implementation problem

Problem description In the struct dirent returned by the operation readdir or scandir, d_name will cause an error, and the subsequent file name output will become very strange. The complete file name cannot be output, or other errors. Examples of error codes are as follows #define _DEFAULT_SOURCE #include <dirent.h> #include <stdio.h ...

Added by Blob on Thu, 30 Dec 2021 13:37:59 +0200

Monitoring Overview & Zabbix foundation & Zabbix monitoring service | Cloud computing

1. Common system monitoring commands 1.1 problems In this case, you are required to be familiar with the common commands for viewing the Linux system status and prepare for further specific monitoring tasks: View memory informationView swap partition informationView disk informationView CPU InformationView network card informationView ...

Added by Lustre on Thu, 30 Dec 2021 06:06:10 +0200

Construction and use of ELK real-time diary platform

Construction and use of ELK real-time diary platform What is ELK ELK is the acronym of Elasticsearch, logstash and Kibana (but the later filebeat (one of beats) can be used to replace the data collection function of logstash, which is lightweight). It is also known as Elastic Stack on the market. Elasticsearch: it is the core distributed sear ...

Added by coreyp_1 on Thu, 30 Dec 2021 03:52:45 +0200

Kubedm deployment k8s

catalogue 1, Deploy docker steps 1. Operations on the master node 2. Operation on node1 node 3. Operation on node2 node 2, Install kubedm, kubelet, and kubectl 1. Specify installation source 2. Local mapping / etc/hosts 3. Specify installation version 4. Set startup and self startup 5. Close swap partition 6. The chain that passes br ...

Added by Ken2k7 on Thu, 30 Dec 2021 03:37:51 +0200

Isolation and limitation of Linux container

Linux Process IntroductionIf you want to write a small program for calculating addition, the program needs to input from one file, and the results after calculation are input into another file.Because the computer only knows 0 and 1, no matter which language is used to write this code, it needs to be translated into binary files in some way in ...

Added by neel_basu on Thu, 30 Dec 2021 00:04:45 +0200

RocketMQ - single machine and cluster installation

Stand alone installation Front work Hardware requirements: 64 bit Linux/Unix/Mac/Windows4G and above disk space Software requirements: 64 bit JDK above 1.8Maven 3.2.xGit Installation: 1. Download the installation package 4.9. 2 download address 2. Upload the downloaded package to Linux It can be uploaded through rz command. For ot ...

Added by HhAaZzEeYy on Wed, 29 Dec 2021 23:47:59 +0200

Iptables understand + Practice

Practice of Iptables brief introduction *Netfilter/Iptables (hereinafter referred to as Iptables) is an excellent and open-source completely free firewall tool based on packet filtering in unix/linux. It has very powerful functions and flexible use. It can finely control the data packets flowing into and out of the server. In particular, it ca ...

Added by donbonzo on Wed, 29 Dec 2021 21:29:02 +0200