Programmer Group

1. JDK1.8 Environment Construction 1. Upload files to decompress [root@localhost mysoft]# tar -zxvf jdk-8u161-linux-x64.tar.gz [root@localhost mysoft]# pwd /usr/local/mysoft [root@localhost mysoft]# mv jdk1.8.0_161 jdk1.8 2. Check the environment. Installed and deleted [root@localhost mysoft]# ps -aux|grep java [root@localhost mysoft]# rpm -e - ...

01 Overview Helm is a package management tool for kubernetes. It can install, manage and uninstall kubernetes applications conveniently and quickly. It is similar to the function of yum or apt-get software in Linux operating system. Its main design purposes are: Create a new chart package Packaging and compressing charts package files Integra ...

This article mainly describes how to build a custom YUM source, in a host environment with a large number of local networks, can reduce dependence on the external network. Server Install vsftp package [root@server ~]# yum install vsftpd -y Adding related resource bundles Create directories to store [root@server ~]# mkdir /var/ftp/centos7 /v ...

Purpose of this chapter: Client Centos7-1 can enjoy the YUM repository of remote server Centos7 This chapter environment: a server Centos7, a client Centos7-1, VM Virtual Machine 1. Install vsftpd service [root@localhost ~]# yum install vsftpd -y Loaded plug-ins: fastest mirror, langpacks Loading mirror speeds from cached hostfile * base: m ...

When installed on a large scale, it is easy to operate manually and improve efficiency by using unattended equipment. PXE Network Installation Configuration of Dual Network Cards Here, ens33 is a nat network, ens37 is a host-only network, and ens37 is configured. [root@localhost ~]# cd /etc/sysconfig/network-scripts/ [root@localhost networ ...

I've written two articles about it before. Use and deployment of Exceptionless, an open source log project But it was based on version 4.1.0 (release in 2017), and Exceptionless launched version 5.0.0 more than two years later. I. About Exceptionless 5.0.0 Exceptionless is an open source, real-time and useful log collection framework, which mak ...

Previous Cause: The server was scanned for a SpenSSH vulnerability, so an upgraded version was needed to fix the vulnerability. Server version: # cat /etc/redhat-release CentOS Linux release 7.5.1804 (Core) Pre-upgrade ssh version: # ssh -V OpenSSH_7.4p1, OpenSSL 1.0.2k-fips 26 Jan 2017 Upgraded ssh version: # ssh -V OpenSSH_8.0p1, OpenSSL 1.0 ...

I. demand Base new to 300 servers, need to install the operating system version 7.6 of CentOS, choose to use PXE for batch installation. II. Preparations Use the layer-2 switch to connect the server without the operating system installed, so as to avoid affecting the normal server of the current network. Upload the operating system image to ...

1 Installation Planning ORACLE is installed on the new disk. The disk is mounted on u01. d01 and d02 are symbolic connections. The actual directory is under u01. parameter value Oracle base /d01/app/oracle Software location /d01/app/oracle/product/12102/dbhome_1 DATAFILEDESTINATION /d02/oradata RECOVERYAREADESTINATION /d02/fast_recov ...

Preface: The encapsulation of xtrabackup by innobackupex is a reliable physical backup tool launched by percona. Official Link Address For mysql, logical backup can use mysqldump, mysqlpump, mysqldumper, and physical backup can use innobackupex directly. Installation: For convenience, I use centos ...