(HSTS) HTTP Strict Transport Security is a policy mechanism that protects the use of invalid certificates and man-in-the-middle attacks such as protocol downgrades.
SSL is an abbreviation of Secure Socket Layer, and they require certificates to exchange data between the server and clients.
Screen is a terminal management tool for Linux and widely used in system administrators. If you have only terminal in your hand, connected to your server with SSH and don't know how to split , it is the best tool ever.
The main pros are you can not only leave the session open if you are dropped out or kicked out by the remote server. You can continue your remote session by typing a simple command and continue your work.
Clear git cache is necessary when your git push is not appear over the server, especially .gitignore addition or removal.
Install drupal on subdirectory with laravel and nginx- how to