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What is the best way to read JSON data from a file and write JSON to a file in Python?
I need to change my server hostname. What is the correct way to do this on modern Linux systems?
How do I create and extract .tar.gz archives on Linux from the command line?
My application crashes with "too many open files" error. How can I increase the file descriptor limit?
I want to secure my Ubuntu server with a firewall. How do I configure UFW to allow only SSH and HTTP/HTTPS?
I need to run a backup script every night at 2 AM. How do I set up a cron job?
What are the best tools to monitor CPU, memory, and disk usage in real-time on a Linux server?
My server is running out of memory. How can I add swap space without reinstalling the system?
I want my Ubuntu server to automatically install security updates. How do I configure unattended-upgrades?
My server disk is getting full. How can I find which files and directories are taking up the most space?
I need to free up port 8000 but something is already using it. How can I find what process is using it and kill it?
I'm getting CORS errors when my frontend tries to access my Django REST API. "Access-Control-Allow-Origin" header is missing.
My Django application is slow. Database queries are taking forever. How can I optimize my ORM queries?
My Django app cannot connect to PostgreSQL. I get "connection refused" error. PostgreSQL is installed and running.
I'm getting 502 Bad Gateway error when accessing my Django site through Nginx. Gunicorn seems to be running. How do I fix this?
I made changes to my models but migrations are not being applied. makemigrations shows "No changes detected". What's wrong?
When I try pip install, I get SSL: CERTIFICATE_VERIFY_FAILED error. How can I fix this?
I'm getting UnicodeDecodeError when reading files or processing text. How do I properly handle encoding in Python?
When I try to activate my virtual environment with "source venv/bin/activate", nothing happens. No error, but the prompt doesn't change.
I installed a package with pip but Python says "ModuleNotFoundError: No module named". I've tried reinstalling but it still doesn't work.
