1.Linux安装Nginx
1.1将Nginx素材内容上传到/usr/local目录（pcre,zlib,openssl,nginx）
1.2安装pcre库
1.2.1 cd到/usr/local目录
1.2.2 tar -zxvf pcre-8.36.tar.gz 解压
1.2.3 cd pcre-8.36目录
1.2.4 执行./configure 编译 如果报错configure: error: no acceptable C compiler found in $PATH
安装gcc 库：yum install -y gcc gcc-c++ 如果发现进程被占用：kiil -9 PID 然后再次执行yum安装gcc即可
在此./configure编译
1.2.5 make编译
1.2.6 make install安装
1.3安装zlib库
1.3.1 cd到/usr/local目录
1.3.2 tar -zxvf zlib-1.2.8.tar.gz
1.3.3 cd zlib-1.2.8目录
1.3.4 ./configure编译
1.3.5 make
1.3.6 make install
1.4安装ssl
1.4.1 cd到/usr/local目录
1.4.2 tar -zxvf open-1.0.1.tar.gz
1.4.3 cd open-1.0.1l目录
1.4.4 ./config编译
1.4.5 make
1.4.6 make install
1.5安装Nginx
1.5.1 cd到/usr/local目录
1.5.2 tar -zxvf nginx-1.5.9.tar.gz
1.5.3 cd nginx-1.5.9目录
1.5.4 ./configure --prefix=/usr/local/nginx 注意编译之后的文件都放在/usr/local/nginx
1.5.5 make
1.5.6 make install
1.6启动测试
启动命令：/usr/local/nginx/sbin/nginx
本机浏览器测试：虚拟机IP地址即可 如果访问不了关闭防火墙 centos7关闭防火墙命令：systemctl stop firewalld.service 禁用：systemctl disable firewalld.service
2.keepalived高可用工具
2.1 将keepalived上传到linux系统当中
2.2 cd /usr/local目录
2.3 tar -zxvf keepalived-xxxxxxxxx
2.4 切换到解压目录
2.5 yum install -y openssl openssl-devel
2.5 ./configure --prefix=/usr/local/keepalived 编译，将编译文件放到/usr/local/keepalived
2.6 make
2.7 make install
2.8 在/etc/keepalived 创建目录： mkdir /etc/keepalived
2.9 cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
2.10 cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/
2.11 cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
2.12 ln -s /usr/local/sbin/keepalived /usr/sbin/
2.13 ln -s /usr/local/keepalived/sbin/keepalived/sbin/
2.14 将nginx启动脚本和keepalived.conf配置上传到/etc/keepalived
2.15 主机：修改keepalived.conf配置文件
interface 配置成与主机相同的网络 ip a
mcast_src_ip 配置成自己机器的IP
virtual_ipaddress {
192.168.7.88 # 虚拟ip,也就是解决写死程序的ip怎么能切换的ip,也可扩展，用途广泛。可配置多个。
}
2.16 启动keepalived 如果报错：Job for keepalived.service failed because the control process exited with error code. See "systemctl status keepalived.service" and "journalctl -xe" for details.
解决办法：rm /usr/sbin/keepalived
ln -s /usr/local/keepalived/sbin/keepalived /usr/sbin/
2.17 备机keepalived.conf
state BACKUP 备机
interface 配置成与主机相同的网络 ip a
mcast_src_ip 配置成自己机器的IP
priority 90
virtual_ipaddress {
192.168.7.88 # 虚拟ip,也就是解决写死程序的ip怎么能切换的ip,也可扩展，用途广泛。可配置多个。
}