VirtualBox中使用CentOS 7

VirtualBox设置

1. VirtualBox网络设置选NAT并配置端口转发：2222->22
2. 安装时开启以太网并配置自动连接，或以后：vi /etc/sysconfig/network-scripts/ifcfg-enp0s3的ONBOOT改成yes，然后 systemctl restart network。
3. 设置密码：xxxxxx

基本设置

1. yum -y install epel-release vim，然后：yum update
2. 设置防火墙：firewall-cmd --permanent --zone=public --add-port=22/tcp、firewall-cmd --reload
3. 查看IP：ip addr，查看端口：ss -antp
4. 安装OpenJDK：yum -y install java-1.8.0-openjdk 或下载并安装Oracle JDK：rpm -ivh jdk-8u101-linux-x64.rpm

安装Nginx

1. vim /etc/yum.repos.d/nginx.repo
   [nginx]
   name=nginx repo
   baseurl=http://nginx.org/packages/centos/7/$basearch/
   gpgcheck=0
   enabled=1
2. 安装：yum -y --enablerepo=nginx install nginx
3. 启动：systemctl start nginx、设置开机自启：systemctl enable nginx
4. SSL配置：https://mozilla.github.io/server-side-tls/ssl-config-generator/

安装MariaDB

1. 安装：yum install mariadb-server mariadb
2. 启动：systemctl start mariadb、设置开机自启：systemctl enable mariadb
3. 初始化：/usr/bin/mysql_secure_installation
4. 登录：mysql -u root -p
5. 创建：CREATE DATABASE xxx CHARACTER SET utf8 COLLATE utf8_bin;
6. 授权：GRANT ALL PRIVILEGES ON xxx.* TO 'xxx'@'localhost' IDENTIFIED BY 'xxxxxx';
7. 刷新权限：FLUSH PRIVILEGES;

安装Memcached

1. yum install memcached
2. vi /etc/sysconfig/memcached 其中：MAXCONN=”1024″ 同时最大连接数、CACHESIZE=”64″ 使用的内存大小
3. 启动：systemctl start memcached、设置开机自启：systemctl enable memcached
4. 查看memcache状态：memcached-tool 127.0.0.1:11211 stats