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Сообщение от stan_q

What does it mean - CMS version? Version of server?

It can be the version of the software running on the computer (SSH version, SMTP, etc) or it can mean the actual version of the CMS that the site is running. along with all that it is useful to know the php and sql versions.

Yes, sometimes the admins do change the code around a little bit (only if they know what they are doing) and if we are lucky, they might forget something or it may open new venerabilities.

I'm personally not worried about my machine being attacked because out of the billions of IPs out there what are the chances that someone will randomly try to connect to mine.
There are also hosting sites that support php and databases that are extremely helpful