CentOS

1Create the/etc/yum.repos.d/mariadb.repo file, which is now available in the 10 release of the official version.0[Mariadb]name=Mariadbbaseurl=

Environment of this configuration: centos6.5 64-bitRequired Files :Instantclient-basic-linux-x86-64-11.2.0.2.0.zipInstantclient-sdk-linux-x86-64-11.2.0.2.0.zipCx_oracle-5.1.2.tar.gzI put these three papers in/home/hadoop/oracle.Code

First, the simulation environment:VMware virtual MachinesCentOS Source Operating SystemCloning the CentOS operating systemSecond, the problem: After the VM cloning the operating system, the network card does not functionThird, the solution /

After the use of the CentOS virtual machine, there is no Internet access, the use of the host ping virtual machine address can ping, and the virtual machine ping the host, while the virtual machine can not ping other URLs or IP, display content for

This article is about how to install the Vmwaretool method in a virtual machine, hoping to help a useful friend1, the graphical interface to run CentOS.2. Install the VMWARE TOOLS submenu in the Virtual Machine menu bar, click Virtual Machine, and

1, installation GHC: https://www.haskell.org/ghc/download_ghc_8_0_1#linux_x86_64Installation steps: Tar xvf ghc_xxxCD ghc_xxx./confiureMake install (takes about 30 minutes)2, Installation Cabal-install:

1. View native system and Python version# cat /etc/redhat-release CentOS release 6.7 (Final)View the Python version of CentOS release 6.7 (Final)# python -VPython 2.6.6Note that we do not disrupt the system's Python environment, because several key

View all locale languages# locale-a# Locale-a|grep ENView the language used by the current operating system# echo $LANGSet system locale language to Chinese environment (permanent)# vi/etc/sysconfig/i18nLang= "ZH_CN. UTF-8 "Set system locale

Installation# yum-y Install Salt-apiChange ConfigurationVim/etc/salt/masterDrop the default comment on our side. The default profile directory is/srv/saltDEFAULT_INCLUDE:MASTER.D/*. confCreate a Directory#cd/etc/salt# mkdir Master.d/# CD

In the Centos7 terminal, we enter java-version to see the Java version, but the input javac does not respondThe reason is that the OpenJDK JRE is not a real JDK preinstalled in the system, so you have to install it yourself and then configure the

Recently, to use Nginx to build a virtual experimental environment of reverse proxy after cloning in the virtual machine, the cloned system does not correctly access the network.The troubleshooting was found because the cloned environment changed

　　1. Go to the official website to download the Linux version of JDK8, I downloaded the following2. Download Xftp and Xshell to manipulate the server, you can search for download installation, after the installation is complete, open Xshell, new

First, install the compilation tools and library filesYum-y install make zlib zlib-devel gcc-c++ libtool OpenSSL openssl-develSecond, first to install PCREPCRE function is to let Ngnix support Rewrite function.1, download PCRE installation package,:

1. Boot does not startIn the actual production scenario, we like to install some software services, set the software to boot, set to boot from boot There are two ways:1) set to chkconfig, You can write a script to view the command to set the boot-

Pre-configured NFS ports are always passed Rpcinfo x.x.x.x This command to find the port that needs to be released, and then release the port in the firewall, but because the server is in a rack, the property that often power off, so every time

1. Install VSFTPD. (Ps:procedure 1-4 under the circumstance that the firewall are closed and the iptables is inactive)1 Install vsftpd 2 sudo Yum Install vsftpd 3 # start VSFTPD 4 sudo systemctl start Vsftpd.service 5 # start automatic after

Since some packages only exist in the Epel source, we add them in CentOS;The following 2 methods are available, 1 manual, 2 automatic1. Manual methodVi/etc/yum.repos.d/epel.repoAdd the following code[epel]name=extrapackages for enterprise linux 7 - 

CentOS 6.8 grub Encryption and hack password combat guideCase 1: Server in public, in order to prevent random people into the single-user crack root password, the grub boot is encrypted, in order to more secure the boot kernel is also encrypted1.

Run as AdministratorSu RootEnter Password Go to your desktop directory Gedit 1.cpp Edit content # Include Using namespace CV;Using namespace STD;Int main (){Mat I = imread ("/home/JV/desktop/1.png"); // put a 1.png image on the

Solve centos to delete the folder permission denied Centos Delete folder permission denied The folder extracted with the tar command has a lock and cannot be deleted; For example: Use rm-rf to delete the output as follows: Key Information