Django + ninx + uwsgi configuration and environment setup
Django can be deployed in many ways, and nginx+uwsgi is one of the more common ways.
In this method, our usual approach is to use nginx as the front-end of the server, which will receive all requests from the WEB and manage the requests in a unified manner. nginx handles all static requests by itself (this is the strength of NGINX). Then, NGINX passes all non-static requests to Django through uwsgi, which is processed by Django to complete a WEB request.
uwsgi official website: http://uwsgi-docs.readthedocs.org/en/latest/tutorials/Django_and_nginx.html
I will not translate them one by one. I followed the official website process and it has been unsuccessful (the conf file in Django did not refer successfully, and nginx did not load it, resulting in the configured nginx path and port never being uploaded). Most Chinese websites are also translated. The content of the official website has no practical significance
The final solution: configure the server information directly in /etc/nginx/site-available/default, and then restart nginx: sudo service nginx restart, done
').addClass('pre -numbering').hide(); $(this).addClass('has-numbering').parent().append($numbering); for (i = 1; i ').text(i)); }; $numbering.fadeIn(1700); }); });The above introduces the Django + ninx + uwsgi configuration and environment construction, including the relevant aspects. I hope it will be helpful to friends who are interested in PHP tutorials.

In PHP, you can use session_status() or session_id() to check whether the session has started. 1) Use the session_status() function. If PHP_SESSION_ACTIVE is returned, the session has been started. 2) Use the session_id() function, if a non-empty string is returned, the session has been started. Both methods can effectively check the session state, and choosing which method to use depends on the PHP version and personal preferences.

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Managing concurrent session access in PHP can be done by the following methods: 1. Use the database to store session data, 2. Use Redis or Memcached, 3. Implement a session locking strategy. These methods help ensure data consistency and improve concurrency performance.

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Sessionlockingisatechniqueusedtoensureauser'ssessionremainsexclusivetooneuseratatime.Itiscrucialforpreventingdatacorruptionandsecuritybreachesinmulti-userapplications.Sessionlockingisimplementedusingserver-sidelockingmechanisms,suchasReentrantLockinJ

Alternatives to PHP sessions include Cookies, Token-based Authentication, Database-based Sessions, and Redis/Memcached. 1.Cookies manage sessions by storing data on the client, which is simple but low in security. 2.Token-based Authentication uses tokens to verify users, which is highly secure but requires additional logic. 3.Database-basedSessions stores data in the database, which has good scalability but may affect performance. 4. Redis/Memcached uses distributed cache to improve performance and scalability, but requires additional matching

Sessionhijacking refers to an attacker impersonating a user by obtaining the user's sessionID. Prevention methods include: 1) encrypting communication using HTTPS; 2) verifying the source of the sessionID; 3) using a secure sessionID generation algorithm; 4) regularly updating the sessionID.


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