记录Python一些代码及方法

Python方法记录

1. 开启端口号

   iptables -I INPUT -p tcp –dport 5244 -j ACCEPT

2. 开启全部端口号

   iptables -P INPUT ACCEPT
   iptables -P FORWARD ACCEPT
   iptables -P OUTPUT ACCEPT
   iptables -F

3. nginx下载相关

   下载nginx sudo apt-get install nginx
   nginx开启 sudo service nginx start
   nginx重启 sudo service nginx reload
   nginx关闭 sudo service nginx stop
   nginx看状态 sudo service nginx status
   nginx看能否正确执行 sudo nginx -t

4. nginx配置

    # Default server configuration
    # 重定向
    server {
     listen 80;
     server_name 123.kangbingjie.com;
     #return 301 123.kangbingjie.com$request_uri;
     rewrite ^ https://$http_host$request_uri? permanent;
    }
    server {
     server_name 123.kangbingjie.com;
     location / {
        proxy_set_header X-Forwarded-For 		$proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header Host $http_host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Range $http_range;
        proxy_set_header If-Range $http_if_range;
        proxy_redirect off;
        proxy_pass http://127.0.0.1:5244;
     }
   	 
     # https协议证书
     root /var/www/html;
     listen [::]:443 ssl ipv6only=on; # managed by Certbot
   	 
     listen 443 ssl; # managed by Certbot
   	 
     ssl_certificate /etc/letsencrypt/live/123.kangbingjie.com/fullchain.pem; # managed by Certbot
   	 
     ssl_certificate_key /etc/letsencrypt/live/123.kangbingjie.com/privkey.pem; # managed by Certbot
   	 
     include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
   	 
     ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; 	
     # managed by Certbot
    }
   	
    # Virtual Host configuration for example.com
    # You can move that to a different file under sites-available/ and symlink that
    # to sites-enabled/ to enable it.
    # 默认端口
   	
    server {
     listen 80 default_server;  
     location / {
        try_files $uri $uri/ =404;
     }
    }
   

5. uwsgi配置

   #uwsgi.ini
   [uwsgi]
   socket=:8000  # Nginx 
   #http = :8000 # http
   chdir = /home/kangbing/mmsite
   wsgi-file = mmsite/wsgi.py
   module = mmsite.wsgi
   processes = 4
   threads = 2
   master = True
   pidfile = uwsgi.pid
   daemonize = uwsgi.log
   

   启动：uwsgi –ini uwsgi.ini
   停止：uwsgi –stop uwsgi.pid
   重启：uwsgi –reload uwsgi.pid
   查看PID: ps aux | grep uwsgi
   测试: uwsgi –http :8000 –module yourprojectname.wsgi

6. ssl证书配置(和Nginx一起使用）

   安装：apt install certbot python3-certbot-nginx
   生成证书：certbot –nginx -d 网址不带http/https
   到/etc/nginx/sites-enabled/default
   Django的配置文件中配置（默认已配好）

7. pip 不能使用的解决方法

   卸载
   sudo apt remove python3-pip

   安装先下载
   wget https://bootstrap.pypa.io/get-pip.py

   安装
   sudo python3 get-pip.py

   这时候执行 python3 -m pip –version 提示找不到
   hash -r 清空缓存
   pip3 -V 再执行pip3 的命令就可以了

   卸载 OpenSSL
   rm -rf /usr/lib/python3/dist-packages/OpenSSL

   重新安装
   pip3 install pyopenssl

   升级到最新版
   pip3 install pyopenssl –upgrade

8. 局部刷新 ajax
9. supervisor 管理进程
   安装：pip install supervisor
   配置：echo_supervisord_conf > /路径xx(可无)/supervisord.conf
   重启：supervisorctl reload
   查看状态：supervisorctl status
   启动：supervisord
   第一次启动：supervisord -c 路径
   关闭进程：supervisorctl stop 子进程或all
   开启进程：supervisorctl start 子进程或all
   include包含的需要执行的 用空格隔开，command后面接着写不要有空格