LAMP=Linux+Apache（httpd）+MySQL+PHP
Apache與httpd是相輔相成的，必須在一起
Apache+MySQL+PHP可以同時安裝在一臺機器上；

MySQL安裝

源文件：http://mirrors.sohu.com/mysql/MySQL-5.6/mysql-5.6.36-linux-glibc2.5-x86_64.tar.gz
模塊支持安裝包：perl-Data-Dumper.x86_64

下載MySQL安裝包

[root@shu-test ~]# cd /usr/local/src/
[root@shu-test src]# ls
httpd-2.2.34  httpd-2.2.34.tar.gz
[root@shu-test src]# wget http://mirrors.sohu.com/mysql/MySQL-5.6/mysql-5.6.36-linux-glibc2.5-x86_64.tar.gz
 

解壓並移動改名到安裝路徑

[root@shu-test src]# tar zxvf mysql-5.6.36-linux-glibc2.5-x86_64.tar.gz
[root@shu-test src]# mv mysql-5.6.36-linux-glibc2.5-x86_64 /usr/local/mysql
[root@shu-test src]# ls /usr/local/
apache2  bin  etc  games  include  lib  lib64  libexec  mysql  sbin  share  src
[root@shu-test src]# ls /usr/local/mysql/
bin  COPYING  data  docs  include  lib  man  mysql-test  README  scripts  share  sql-bench  support-files
[root@shu-test src]#
 

註意：/usr/local/mysql中的mysql不要提前創建，一定要是沒有此文件夾才能移動；否則/mysql文件夾下面是/mysql-5.6.36-linux-glibc2.5-x86_64文件夾；

創建mysql用戶

新建一個mysql用戶，用來方便後面調用mysql數據庫

useradd mysql

創建/data目錄

[root@shu-test src]# cd /usr/local/mysql/
[root@shu-test mysql]# ls
bin  COPYING  data  docs  include  lib  man  mysql-test  README  scripts  share  sql-bench  support-files
[root@shu-test mysql]#
[root@shu-test mysql]# mkdir /data/
[root@shu-test mysql]# ls
bin  COPYING  data  docs  include  lib  man  mysql-test  README  scripts  share  sql-bench  support-files
[root@shu-test mysql]#
 

安裝數據庫

指定mysql數據庫的目錄與用戶名，錯誤提示處理；

./scripts/mysql_install_db --user=mysql --datadir=/data/mysql
將mysql的使用者用戶名指定為mysql，數據庫目錄指定為剛剛創建的/data/mysql目錄；

[root@shu-test mysql]# ./scripts/mysql_install_db --user=mysql --datadir=/data/mysql
FATAL ERROR: please install the following Perl modules before executing ./scripts/mysql_install_db:
Data::Dumper
[root@shu-test mysql]#

此時提示缺少Dumper模塊

查找dumper模塊包

yum list |grep perl |grep -i dumper
列出含有perl模塊，不區分大小寫的dumper包；

[root@shu-test mysql]# yum list |grep perl |grep -i dumper
perl-Data-Dumper.x86_64                     2.145-3.el7                base     
perl-XML-Dumper.noarch                      0.81-17.el7                base     
[root@shu-test mysql]#

安裝模塊支持包

yum install -y perl-Data-Dumper.x86_64

繼續執行指定目錄與用戶名，用echo $?檢查命令是否成功

[root@shu-test mysql]# ./scripts/mysql_install_db --user=mysql --datadir=/data/mysql
[root@shu-test mysql]# echo $?
0
[root@shu-test mysql]#

復制配置模板到etc下（默認有）

[root@shu-test mysql]# cp support-files/my-default.cnf /etc/my.cnf
cp：是否覆蓋"/etc/my.cnf"？ n
[root@shu-test mysql]# ls /etc/my.cnf
/etc/my.cnf
[root@shu-test mysql]#

修改/etc/my.cnf配置文件

[root@shu-test mysql]# vim /etc/my.cnf
[root@shu-test mysql]# cat /etc/my.cnf

 [mysqld]
 datadir=/data/mysql
 socket=/tmp/mysql.sock
# Disabling symbolic-links is recommended to prevent assorted security risks
> symbolic-links=0
 # Settings user and group are ignored when systemd is used.
 # If you need to run mysqld under a different user or group,
 # customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd
[mysqld_safe]
#log-error=/var/log/mariadb/mariadb.log
#pid-file=/var/run/mariadb/mariadb.pid
#
# include all files from the config directory
#
#!includedir /etc/my.cnf.d
[root@shu-test mysql]#

將datadir與socket修改，其他註釋掉；

設置開機啟動

cp support-files/mysql.server /etc/init.d/mysqld
vim /etc/init.d/mysqld

1指定目錄
basedir=/usr/local/mysql
datadir=/data/mysql
2添加開機啟動項mysql
chkconfig --add mysqld
3查看開機啟動項
chkconfig --list
如果看到mysql服務，345都是on則是成功；
指定345開啟命令
chkconfig --level 345 mysql on

啟動於關閉mysql服務

開啟mysqld服務
service mysqld start
查詢mysql是否啟動
ps aux |grep mysqld
查詢啟動服務的端口
netstat -lntp
關閉mysql服務
killall mysqld

LAMP簡介與MySQL安裝