Run server

(a) what is the difference of providing manage.py runserver vs manage.py runserver 0.0.0.0:8000?

manage.py runserver will default to using the IP Address 127.0.0.1 and port address 8000. A different port number or a different IP address and port number can be specified in the form ipaddr:port. For more help on runserver type: python manage.py runserver --help or see Django docs

(b) Can i change the port?

Yes, the port can be specified on the command line: python manage.py runserver 8080

(c) Usually if we look at .net web application usually we host it in iis server or iis express to run the web app. But in django when we use the runserver we are able to access the webpage?

The runserver command launches a lightweight non-production server for debug use. The runserver and the base http server code can be found in the GitHub Django repo

(d) How does it works in backend what is the server used?

The server is a lightweight python-based server provided with Django.

(e) What is the architecture behind it?

The Django basehttp server is based on the Python library module wsgiref simple_server which is based on the Python library HTTP module server

(f) Do the comments generated during the server are saved some where as log files?

The server output is directed to STDERR and STDOUT on the console running the server.

(g) How does the prod deployment works?

Runserver is not used for production. Instead a combination of Nginx or Apache Webserver and uWSGI or gunicorn Webserver Gateway Interface are used to handle web requests and feed them to the Django wsgi.py application interface which runs the project application.