CentOS7服务器中apache、php7以及mysql5.7的安装配置代码

  yum upgrade  yum install net-tools

  关闭SELinux  编辑器打开 etc/selinux/config 文件，找到 SELINUX=enforcing 字段，将其改成 SELINUX=disabled ，并重启设备。  yum -y install httpd mod_ssl  配置防火墙  firewall-cmd --permanent --add-port=80/tcp  firewall-cmd --permanent --add-port=443/tcp  firewall-cmd --reload  开机启动  systemctl start httpd  systemctl enable httpd  终端输入如下指令检查httpd的运行状态  sudo systemctl status httpd

  添加源  rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm  rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm  安装  yum install php70w

  1.安装wget    yum -y install wget  2.安装源    wget https://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm    rpm -ivh mysql57-community-release-el7-8.noarch.rpm  3.安装mysql    yum install mysql-server  4.启动mysql服务    systemctl start mysqld  5.查看MySQL的启动状态    systemctl status mysqld  6.开机启动    systemctl enable mysqld    systemctl daemon-reload  7.修改root本地登录密码    查找mysql生成的随机密码    grep 'temporary password' /var/log/mysqld.log    mysql -uroot -p    修改密码，注意：mysql5.7默认安装了密码安全检查插件（validate_password），默认密码检查策略要求密码必须包含：大小写字母、数字和特殊符号，并且长度不能少于8位。否则会提示ERROR 1819 (HY000): Your password does not satisfy the current policy requirements错误    ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass4!';   8.配置默认编码为utf8    修改/etc/my.cnf配置文件，在[mysqld]下添加编码配置    [mysqld]    character_set_server=utf8    init_connect='SET NAMES utf8'  9.配置mysql远程连接    mysql -uroot -p    use mysql;    Grant all on *.* to 'root'@'%' identified by 'root用户的密码' with grant option;  flush privileges;  然后用以下命令查看哪些用户和host可以访问，%代表任意ip地址  select user,host from user;  防火墙添加3306端口  firewall-cmd --zone=public --add-port=3306/tcp --permanent  firewall-cmd --reload  10.mysql忘记密码  1.修改MySQL的配置文件（默认为/etc/my.cnf）,在[mysqld]下添加一行skip-grant-tables  2.service mysqld restart后，即可直接用mysql进入  3.mysql> update mysql.user set authentication_string=password('123qwe') where user='root' and Host = 'localhost';    mysql> flush privileges;    mysql> quit;   将/etc/my.cnf文件还原，重新启动mysql:service mysql restart,这个时候可以使用mysql -u root -p'123qwe'进入了   mysql>SET PASSWORD = PASSWORD('newpasswd'); 设置新密码