Some server/client questions

How do servers maintain their userbase of clients?

Is it in a single text file with a list of username's and passwords?

Or is it kept where all the other user data is kept? Like if user data is kept in a sql database or if in a binary object.
most server's wouldn't store user info in a plain text file(for security,speed,ease of use). They would most likely use MySQL, Oracle or another database management system.
different. Often, the authentication data as passwords are stored somewhere else, because the application uses a library for authentication (which is handling the data). Some application use OS authentication information, so you find the data in these places (e.g. /etc/passwd)

Simplier applications like small "hacked together" websites just store everything in some mysql database.

But.. you know... it has hardly anything to do with C++.... ;-)

Ciao, Imi.
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