Centos安装配置Nginx

主要有两种方法

  • 使用nginx-proxy-manager

  • 手动安装

  • 使用nginxwebUI

方式一：使用nginx-proxy-manager

1、安装

version: '3'
services:
  npm:
    container_name: nginx-proxy-manager
    image: 'chishin/nginx-proxy-manager-zh:2.9.18'
    restart: unless-stopped
    volumes:
      - ./data:/data
      - ./letsencrypt:/etc/letsencrypt
    network_mode: "host"

默认用户名：admin@example.com

默认密码：changme

默认端口：81（云服务器防火墙要放开）

2、配置

2.1、代理配置

2.2、ssl申请

可以申请通配域名（这里以腾讯云为例）

id和key的申请链接 https://console.dnspod.cn/account/token/token

方式二：手动安装

1、安装nginx

sudo yum install nginx
# 启动并设置自启动
sudo systemctl enable nginx
systemctl start nginx
# [注意]如果不能装
sudo yum install epel-release
sudo yum check-update
sudo yum install nginx

2、安装certbot

参见 https://certbot.eff.org/lets-encrypt/centosrhel7-nginx

sudo yum install certbot
# 配置自动renew
sudo crontab -e
# 输入如下内容
30 2 * * 1 /usr/bin/certbot renew
00 3 * * 1 /usr/sbin/nginx -s reload
# 查看刚才创建的定时任务
sudo crontab -l

可能碰到的问题

# ImportError: No module named 'requests.packages.urllib3'
sudo pip uninstall requests
sudo pip uninstall urllib3
sudo yum remove python-urllib3
sudo yum remove python-requests
sudo yum install python-urllib3
sudo yum install python-requests
sudo yum install certbot

3、申请证书

#创建申请脚本
sudo touch new_ssl_cert.sh

#填入以下内容,保存退出
#!/bin/bash
certbot certonly --webroot -w /usr/share/nginx/html/ -d $1

#使用脚本申请
sudo sh ./new_ssl_cert.sh example.peakliu.com

4、nginx配置文件示例

server.conf

# 根据实际域名修改server_name
server {
    server_name example.peakliu.com;
    listen 80;
    include /etc/nginx/certbot.conf;

# 根据实际服务情况配置转发
#    location / {
#        proxy_pass http://127.0.0.1:3090/;
#        proxy_redirect off;
#        proxy_set_header X-Real-IP $remote_addr;
#        proxy_set_header Host $http_host;
#    }


# 开启https时 添加重定向 同时移除上述服务配置
    location / {
        return 301 https://$http_host$request_uri;
    }
}

server-ssl.conf

server {
    server_name example.peakliu.com;
    listen 443 ssl;
    client_max_body_size 100M;

    ssl_certificate /etc/letsencrypt/live/example.peakliu.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/example.peakliu.com/privkey.pem;
    ssl_trusted_certificate /etc/letsencrypt/live/example.peakliu.com/chain.pem;

    ssl_protocols TLSv1.2;
    ssl_prefer_server_ciphers on;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 5m;

# 根据实际服务情况配置转发
#    location / {
#        proxy_pass http://127.0.0.1:3090/;
#        proxy_redirect off;
#        proxy_set_header X-Real-IP $remote_addr;
#        proxy_set_header Host $http_host;
#    }
}

certbot.conf

location ^~ /.well-known/acme-challenge/ {
   default_type "text/plain";
   root     /usr/share/nginx/html;
}

location = /.well-known/acme-challenge/ {
   return 404;
}

5、配置nginx

# 添加nginx配置软链接
sudo ln -s /绝对路径/server.conf /etc/nginx/conf.d/server.conf
sudo ln -s /绝对路径/certbot.conf /etc/nginx/certbot.conf

# reload使配置生效
sudo nginx -s reload

# 申请ssl证书
sudo certbot certonly --webroot -w /usr/share/nginx/html/ -d example.peakliu.com

# 添加ssl配置软链接
sudo ln -s server-ssl.conf /etc/nginx/conf.d/example-ssl.conf

# reload使配置生效
sudo nginx -s reload

6.错误解决

1.日志报 Permission denied

主要是selinux原因,可以临时关闭也可以永久关闭

bind() to 0.0.0.0:880 failed (13: Permission denied)

  • 临时关闭selinux

# 设置SELinux 成为permissive模式
setenforce 0   

# 设置SELinux 成为enforcing模式
setenforce 1

  • 永久关闭selinux

# 修改selinux配置文件
vim /etc/selinux/config 

# 将SELINUX=enforcing改为SELINUX=disabled
SELINUX=disabled
# 重启机器即可