Linux environment configuration and linux environment

Linux environment configuration and linux environment

I. JDK Installation

Upload jdk-8u60-linux-x64.gz to linux

2. Unzip the JDK command tar-xzf jdk-8u60-linux-x64.gz

3. Configure the environment variable vi/etc/profile in linux

JAVA_HOME =/usr/local/java/jdk1.8.0 _ 60
JRE_HOME =/usr/local/java/jdk1.8.0 _ 60/jre
PATH = $ PATH: $ JAVA_HOME/bin: $ JRE_HOME/bin
CLASSPATH =.: $ JAVA_HOME/lib/dt. jar: $ JAVA_HOME/lib/tools. jar: $ JRE_HOME/lib
Export JAVA_HOME JRE_HOME PATH CLASSPATH

Save and exit

Ii. Install Mysql

0、upload mysql-5.6.26-1.linux_glibc2.5.x86_64.rpm-bundle.tar to linux Through the xftptool

Decompress [root @ localhost ~] # Tar-xvf MySQL-5.6.26-1.linux_glibc2.5.x86_64.rpm-bundle.tar

1. Delete the existing mysql database in the system first.

Rpm-qa | grep mysql # view existing mysql-related databases in the system

Rpm-e mysql-libs-5.1.66-2.el6_3.i686 -- nodeps # delete old library

Rpm-ivh MySQL-server-5.1.73-1.glibc23.i386.rpm # Install mysql Server

Rpm-ivh MySQK-client5.1.73-1.glibc23.i386.rpm # Install mysql client

2. After installation, a hidden file under root will be displayed. mysql_secret will have a root random password.

Query hidden files

[Root @ localhost ~] # Cat./. mysql_secret

# The random password set for the root user at Tue May 24 19:33:13 2016 (local time): eGNEvAgTNn4vdLJw

3. Start the mysql Service

[Root @ localhost ~] # Service mysql start
Starting MySQL... SUCCESS!

4. log on to mysql

[Root @ localhost ~] # Mysql-uroot-peGNEvAgTNn4vdLJw

Modify the mysql logon Password

Mysql> set password = password ("root ");

Mysql> exit

Log on to mysql again

[Root @ localhost ~] # Mysql-uroot-proot

Authorize Remote Access

Mysql> grant all privileges on *. * TO 'root' @ '%' identified by 'root' with grant option;

To change the password of a 64-bit MySql instance after installation:

/Root/. mysql_secret # random password of the root user in mysql generated after installation Service mysql start # start the mysql service Mysql-uroot-p randomp # log on with a random password > Set password = password ("root "); > Flush privileges; > Exit;

Enable remote access

Mysql> grant all privileges on *. * TO 'root' @ '%' identified by 'mypassword' with grant option; Mysql> flush privileges;