This is more idle curiosity than anything else. A friend of mine asked me ‘which port range is it that only root can use under Linux?’ I told him 0-1024 were restricted. Then he asked my why it was so and… I was at a loss. No idea whatsoever.
Your system is available on a network and you want to protect yourself against brute force attacks, so no one can guess your root account password.
Is there a way I can see the environment variable of an other user? I want to do that as root, so permissions won’t be a problem I guess. For the user himself, I use echo $PATH or set | grep PATH (or set when I don’t remember the variable name). What would be a … Read more
Do they refer to the same thing or is root just a location in filesystem (its ultimate base) and superuser a privileged user (sort of equivalent of windows administrator account) ? Do they need the same password ? Is superuser the kernel itself?
I know several ways to reset root user’s password, but want to know which is the best and why it is. For example: