一. 安装mysql5.6
1、下载mysql5.6免安装版本
# cd /root
# wget https://dev.mysql.com/get/Downloads/MySQL-5.6/mysql-5.6.37-linux-glibc2.12-x86_64.tar.gz
2、解压mysql5.6到/usr/local/mysql5.6
# mkdir -p /usr/local/mysql5.6
# mkdir -p /data/mysql5.6
# tar xf mysql-5.6.37-linux-glibc2.12-x86_64.tar.gz
# mv mysql-5.6.37-linux-glibc2.12-x86_64 /usr/local/mysql5.6
3、创建mysql用户
# groupadd mysql
# useradd -r -g mysql mysql
# chown -R mysql:mysql /usr/local/mysql5.6
# chown -R mysql:mysql /data/mysql5.6
4、初始化mysql
# /usr/local/mysql5.6/scripts/mysql_install_db --user=mysql --datadir=/data/mysql5.6/ --basedir=/usr/local/mysql5.6/
5、修改配置文件
# cat /usr/local/mysql5.6/my.cnf
[mysqld]
basedir = /usr/local/mysql5.6/
datadir = /data/mysql5.6/
port = 3307
socket = /data/mysql5.6/mysql.sock
innodb_file_per_table=1
default-storage-engine=INNODB
explicit_defaults_for_timestamp=true
symbolic-links=0
max_connections=1000
[mysqld_safe]
log-error=/data/mysql5.6/mysqld.log
pid-file=/data/mysql5.6/mysqld.pid
# mv /etc/my.cnf /etc/my.cnfbak
# cp /usr/local/mysql5.6/my.cnf /etc/my.cnf
# vim /etc/profile
export MYSQL_HOME="/usr/local/mysql5.6/"
export PATH="$PATH:$MYSQL_HOME/bin"
# source /etc/profile
6、开启mysql进程
法一、
# cp /usr/local/mysql5.6/support-files/mysql.server /etc/init.d/mysql5.6
# chkconfig --add mysql5.6
# chkconfig mysql5.6 on
# service mysql5.6 start
法二、
# /usr/local/mysql5.6/bin/mysqld_safe --user=mysql --defaults-file=/usr/local/mysql5.6/my.cnf --datadir=/data/mysql5.6/ --basedir=/usr/local/mysql5.6/ &
7、新建远程用户并修改密码
# ln -s /data/mysql5.6/mysql.sock /tmp/mysql.sock
# /usr/local/mysql5.6/bin/mysql -uroot -P3307
mysql> CREATE USER 'root'@'%' IDENTIFIED BY 'password';
mysql> GRANT ALL PRIVILEGES ON *.* TO'root'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;
mysql> update mysql.user set password=password('password') where User="root" and Host="localhost";
mysql> update mysql.user set password=password('password') where User="root" and Host="127.0.0.1";
mysql> update mysql.user set password=password('password') where User="root" and Host="hostname";
mysql> update mysql.user set password=password('password') where User="root" and Host="::1";
mysql> flush privileges;
附：一键安装脚本：
#!/bin/bash
#=======================================================================#
# System Supported: CentOS 6+、7+ #
# Description: mysql linux generic version Auto Installer #
# Author: Doubles <doubles159@163.com> #
# Date: 2018-01-26 #
#=======================================================================#
GROUP_NAME=mysql
USER_NAME=mysql
MYSQLDB_BASE_HOME="/usr/local/mysql"
MYSQLDB_DATA_HOME="/data/mysql"
MYSQLDB_PORT=3307
MYSQL_VERSION="mysql-5.6.37-linux-glibc2.12-x86_64"
VERSION_NUM=`echo $MYSQL_VERSION|awk -F - '{print $2}'`
MYSQL_START_SCRIPTNAME=mysql
ERROR_EXIT=65
#==============================
# Function--> echo motd
#==============================
Echo_motd()
{
echo "#=======================================================================#"
echo "# Setup $MYSQL_VERSION on your system. #"
echo "# You will input mysql's root password later. #"
echo "#=======================================================================#"
sleep 1
}
#==============================
# Function--> add user and group
#==============================
Add_user()
{
# check if user is root
if [ $(id -u) != "0" ];then
echo "Error: You must be root to run this script!"
exit 1
fi
# addGroup
if [ -z $(cat /etc/group|awk -F: '{print $1}'| grep -w "$GROUP_NAME") ]
then
groupadd -g 27 $GROUP_NAME
if(( $? == 0 ))
then
echo "group $GROUP_NAME add sucessfully!"
fi
else
echo "$GROUP_NAME is exsits"
fi
# addUser
if [ -z $(cat /etc/passwd|awk -F: '{print $1}'| grep -w "$USE_NAME") ]
then
adduser -u 27 -g $GROUP_NAME $USER_NAME
if (( $? == 0 ))
then
echo "user $USER_NAME add sucessfully!"
fi
else
echo "$USER_NAME is exsits"
fi
}
#==============================
# Function-->download mysql
#==============================
Down_mysql()
{
# download mysql
rm -rf /tmp/${MYSQL_VERSION}*
wget https://dev.mysql.com/get/Downloads/MySQL-5.6/${MYSQL_VERSION}.tar.gz -P /tmp
if(( $? == 0 ))
then
echo "MySQL DownLoad sucessfully!"
else
echo "MySQL DownLoad failed!"
exit $ERROR_EXIT
fi
}
#==============================
# Function-->create basedir and datadir
#==============================
Add_dir()
{
cd /tmp
tar xzvf ${MYSQL_VERSION}.tar.gz
# if the basedir ${MYSQLDB_BASE_HOME} is exsits.....
if [ -d "${MYSQLDB_BASE_HOME}" ]
then
echo "The basedir ${MYSQLDB_BASE_HOME} is exsits"
DIR_NUM=1
MYSQLDB_BASE_HOME_TMP="${MYSQLDB_BASE_HOME}-$VERSION_NUM"
MYSQLDB_DATA_HOME_TMP="${MYSQLDB_DATA_HOME}-$VERSION_NUM"
MYSQL_START_SCRIPTNAME_TMP="${MYSQL_START_SCRIPTNAME}-$VERSION_NUM"
MYSQLDB_PORT=$((MYSQLDB_PORT + 1))
while [ -d $MYSQLDB_BASE_HOME_TMP ]
do
echo "The basedir ${MYSQLDB_BASE_HOME_TMP} also exsits"
MYSQLDB_BASE_HOME_TMP="${MYSQLDB_BASE_HOME_TMP}_${DIR_NUM}"
MYSQLDB_DATA_HOME_TMP="${MYSQLDB_DATA_HOME_TMP}_${DIR_NUM}"
MYSQL_START_SCRIPTNAME_TMP="${MYSQL_START_SCRIPTNAME_TMP}_${DIR_NUM}"
DIR_NUM=$((DIR_NUM + 1))
done
MYSQLDB_BASE_HOME=$MYSQLDB_BASE_HOME_TMP
MYSQLDB_DATA_HOME=$MYSQLDB_DATA_HOME_TMP
MYSQL_START_SCRIPTNAME=$MYSQL_START_SCRIPTNAME_TMP
mv ${MYSQL_VERSION} ${MYSQLDB_BASE_HOME}
else
mv ${MYSQL_VERSION} ${MYSQLDB_BASE_HOME}
fi
# if the datadir ${MYSQLDB_DATA_HOME} is exsits.....
if [ -d "${MYSQLDB_DATA_HOME}" ]
then
echo "The datadir $MYSQLDB_DATA_HOME also exsits,please modify the datadir..."
exit $ERROR_EXIT
else
mkdir -p ${MYSQLDB_DATA_HOME}
fi
# add privileges to the basedir and datadir
chown -R $USER_NAME:$GROUP_NAME ${MYSQLDB_BASE_HOME}
chown -R $USER_NAME:$GROUP_NAME ${MYSQLDB_DATA_HOME}
}
#==============================
# Function-->install mysql
#==============================
Install_mysql()
{
yum install -y perl-Module-Install.noarch
# initialize the mysql
${MYSQLDB_BASE_HOME}/scripts/mysql_install_db --user=$USER_NAME --datadir=${MYSQLDB_DATA_HOME} --basedir=${MYSQLDB_BASE_HOME}
if(( $? == 0 ))
then
echo "MySQL Initialize sucessfully!"
else
echo "MySQL Initialize failed!"
exit $ERROR_EXIT
fi
# modify the my.cnf
cd ${MYSQLDB_BASE_HOME}
if [ -s my.cnf ];then
echo "the my.cnf is exsits,it will be overwrite!"
echo "
[mysqld]
basedir = $MYSQLDB_BASE_HOME
datadir = $MYSQLDB_DATA_HOME
port = $MYSQLDB_PORT
socket = ${MYSQLDB_DATA_HOME}/mysql.sock
innodb_file_per_table=1
default-storage-engine=INNODB
explicit_defaults_for_timestamp=true
symbolic-links=0
max_connections=1000
[mysqld_safe]
log-error=${MYSQLDB_DATA_HOME}/mysqld.log
pid-file=${MYSQLDB_DATA_HOME}/mysqld.pid" >./my.cnf
fi
[ $? -eq 0 ] && echo "my.cnf created successfull!!"
# add the bin to the path
echo "add the $MYSQLDB_BASE_HOME/bin to the path!"
cat >> /etc/profile <<EOF
export PATH="$PATH:${MYSQLDB_BASE_HOME}/bin"
EOF
source /etc/profile
}
#==============================
# Function-->start mysql
#==============================
Start_mysql()
{
# add the service to the system service directory
echo "Add the service to the system as mysql5.6,you can start the service by the command 'service mysql5.6 start' !"
cp ${MYSQLDB_BASE_HOME}/support-files/mysql.server /etc/init.d/$MYSQL_START_SCRIPTNAME
sed -i "s!^basedir=.*!basedir=$MYSQLDB_BASE_HOME!g" /etc/init.d/$MYSQL_START_SCRIPTNAME
sed -i "s!^datadir=.*!datadir=$MYSQLDB_DATA_HOME!g" /etc/init.d/$MYSQL_START_SCRIPTNAME
# add to the system service control and it will auto start when the system restart!
chkconfig --add $MYSQL_START_SCRIPTNAME
chkconfig $MYSQL_START_SCRIPTNAME on
service $MYSQL_START_SCRIPTNAME start
}
#==============================
# Function-->create mysql's user and set password
#==============================
Create_user()
{
# add the symbol link for the mysql.sock
ln -s ${MYSQLDB_DATA_HOME}/mysql.sock /tmp/mysql.sock
if(( $? == 0 ))
then
MYSQL_CONNECT_PARAMETER="-uroot -t"
else
MYSQL_CONNECT_PARAMETER="-uroot -t -S ${MYSQLDB_DATA_HOME}/mysql.sock"
fi
# create mysql's user and set root's password
read -p "Input Default Mysql user root's password: " MYSQL_PASSWORD
HOST_NAME=`hostname`
${MYSQLDB_BASE_HOME}/bin/mysql $MYSQL_CONNECT_PARAMETER <<EOF
select Host,User,Password from mysql.user;
CREATE USER 'root'@'%' IDENTIFIED BY '$MYSQL_PASSWORD';
GRANT ALL PRIVILEGES ON *.* TO'root'@'%' IDENTIFIED BY '$MYSQL_PASSWORD' WITH GRANT OPTION;
update mysql.user set password=password('$MYSQL_PASSWORD') where User="root" and Host="localhost";
update mysql.user set password=password('$MYSQL_PASSWORD') where User="root" and Host="127.0.0.1";
update mysql.user set password=password('$MYSQL_PASSWORD') where User="root" and Host="::1";
update mysql.user set password=password('$MYSQL_PASSWORD') where User="root" and Host="$HOST_NAME";
delete from mysql.user where user='';
flush privileges;
select Host,User,Password from mysql.user;
EOF
}
#==============================
# Function-->main function,the entrance of the script
#==============================
Main()
{
Echo_motd;
Add_user;
Down_mysql;
Add_dir;
Install_mysql;
Start_mysql;
Create_user;
}
Main;