1、LAMP = linux + apache + mysql(mariadb/mongodb) + php
2、mysql 安装：
先下载安装包：
wget -c http://mirrors.sohu.com/mysql/MySQL-5.6/mysql-5.6.36-linux-glibc2.5-x86_64.tar.gz解压： tar -xvf mysql-5.6.36-linux-glibc2.5-x86_64.tar.gz
移动到： mv ./mysql-5.6.36-linux-glibc2.5-x86_64 /usr/local/mysql56
cd /usr/local/mysql56
useradd -M mysql -s /sbin/nologin
./scripts/mysql_install_db --user=mysql --datadir=./data/mysql
若报这个错：
FATAL ERROR: please install the following Perl modules before executing ./scripts/mysql_install_db:
Data::Dumper
需要安装：
[root@one_year mysql56]#yum list |grep Dumper
perl-Data-Dumper.x86_64 2.145-3.el7 base
perl-Data-Dumper-Concise.noarch 2.020-6.el7 epel
perl-Data-Dumper-Names.noarch 0.03-17.el7 epel
perl-XML-Dumper.noarch 0.81-17.el7 base
[root@one_year mysql56]# yum install perl-Data-Dumper.x86_64 -y
安装perl模块：yum install perl-Data-Dumper.x86_64 -y
若报错：
Installing MySQL system tables..../bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory
[root@one_year bin]# yum list | grep libaio
libaio.i686 0.3.109-13.el7 base
libaio.x86_64 0.3.109-13.el7 base
libaio-devel.i686 0.3.109-13.el7 base
libaio-devel.x86_64 0.3.109-13.el7 base
[root@one_year bin]# yum install^C
[root@one_year bin]# yum install libaio.x86_64 libaio-devel.x86_64 -y
再进行安装：
./scripts/mysql_install_db --user=mysql --datadir=./data/mysql
然后，再复制配制文件：
cp support-files/my-default.cnf /etc/my.cnf
修改：/etc/my.cnf
再复制：cp support-files/mysql.server /etc/init.d/mysqld
再修改vim /etc/init.d/mysqld
直接用命令启的方式：
/usr/local/mysql56/bin/mysqld_safe --defaults-file=/etc/my.cnf --user=mysql --datadir=/usr/local/mysql56/data/mysql &
mysql服务的开启和关闭：
/etc/init.d/mysqld start
/etc/init.d/mysqld stop
3、mariaDB的安装：
下载安装包:
wget -c https://downloads.mariadb.com/MariaDB/mariadb-10.3.6/bintar-linux-glibc_214-x86_64/mariadb-10.3.6-linux-glibc_214-x86_64.tar.gz
解压：
tar -xvf mariadb-10.3.6-linux-glibc_214-x86_64.tar.gz
移动并重命名：
mv ./mariadb-10.3.6-linux-glibc_214-x86_64 /usr/local/mariadb1036
进入该目录：
cd /usr/local/mariadb1036/