初始化CentOS LAMP，记录一下过程：
一、安装apache
[root@syslog01 axing]# yum install httpd -y
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirror.sov.uk.goscomb.net
#过程略...
Installed:
httpd.x86_64 0:2.4.6-88.el7.centos
Dependency Installed:
apr.x86_64 0:1.4.8-3.el7_4.1 apr-util.x86_64 0:1.5.2-6.el7
httpd-tools.x86_64 0:2.4.6-88.el7.centos mailcap.noarch 0:2.1.41-2.el7
Complete!
启动httpd服务
[root@syslog01 axing]# systemctl start httpd.service
设置开机启动
[root@syslog01 axing]# systemctl enable httpd.service
Created symlink from /etc/systemd/system/multi-user.target.wants/httpd.service to /usr/lib/systemd/system/httpd.service.
2、安装数据库。这里安装的是MariaDB，MariaDB数据库是MySQL的一个分支，完全兼容MySQL，包括API和命令行。
[root@syslog01 axing]# yum -y install mariadb-server mariadb
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
#过程略...
Installed:
mariadb-server.x86_64 1:5.5.60-1.el7_5 mariadb.x86_64 1:5.5.60-1.el7_5
Dependency Installed:
perl-DBD-MySQL.x86_64 0:4.023-6.el7
Complete!
启动数据库服务
[root@syslog01 axing]# systemctl start mariadb.service
设置开机启动
[root@syslog01 axing]# systemctl enable mariadb.service
Created symlink from /etc/systemd/system/multi-user.target.wants/mariadb.service to /usr/lib/systemd/system/mariadb.service.
数据库安全设置，包括设置root密码，禁止root远程登录，移除匿名用户和测试数据库等，可选项：
[root@syslog01 axing]# mysql_secure_installation
NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!
In order to log into MariaDB to secure it, we'll need the current
password for the root user. If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.
Enter current password for root (enter for none):
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
Enter current password for root (enter for none):
OK, successfully used password, moving on...
Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.
Set root password? [Y/n] y
New password:
Re-enter new password:
Password updated successfully!
Reloading privilege tables..
... Success!
By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them. This is intended only for testing, and to make the installation
go a bit smoother. You should remove them before moving into a
production environment.
Remove anonymous users? [Y/n] y
... Success!
Normally, root should only be allowed to connect from 'localhost'. This
ensures that someone cannot guess at the root password from the network.
Disallow root login remotely? [Y/n] y
... Success!
By default, MariaDB comes with a database named 'test' that anyone can
access. This is also intended only for testing, and should be removed
before moving into a production environment.
Remove test database and access to it? [Y/n] y
- Dropping test database...
... Success!
- Removing privileges on test database...
... Success!
Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.
Reload privilege tables now? [Y/n] y
... Success!
Cleaning up...
All done! If you've completed all of the above steps, your MariaDB
installation should now be secure.
Thanks for using MariaDB!
[root@syslog01 axing]#
3、安装PHP
安装PHP，这里用yum install安装的是PHP Version 5.4.16
[root@syslog01 axing]# yum -y install php
安装常用模块
[root@syslog01 axing]# yum -y install php-gd php-ldap php-odbc php-pear php-xml php-xmlrpc php-mbstring php-snmp php-soap curl curl-devel
关联php与数据库
[root@syslog01 axing]# yum -y install php-mysql
想简单看到PHP版本，可以在/var/www/html/目录下创建一个info.php文件，用vi/vim什么的也都行，待会用。
[root@syslog01 axing]# echo "<?php phpinfo(); ?>" > info.php
4、防火墙设置
开放防火墙80端口。如果不喜欢firewall的话，关掉安装ufw也挺好，我ubuntu用的多，更习惯用ufw
[root@syslog01 axing]# firewall-cmd --zone=public --add-port=80/tcp --permanent
success
···
[root@syslog01 axing]# firewall-cmd --reload
success
#关闭 selinux
[root@syslog01 axing]# setenforce 0
重启httpd
[root@syslog01 axing]# systemctl restart httpd.service
5、验证
在浏览器里输入服务器ip地址，会显示类似下面信息表示httpd正常运行：
屏幕快照 2019-02-04 23.35.56.png
输入http://<IP Address>/info.php，则可以看到PHP信息
屏幕快照 2019-02-04 23.36.13.png
完工，快照一下，然后开心的继续安装其他服务去了。
_
