Hi all, I came across an article in relation to compromising a Linux system with ease and was wondering if someone could take a look at it and advise if it makes sense and is useful in helping to strenghten your machine's security.
Here is the link for the article : http://www.tecmint.com/how-to-hack-your-own-linux-system/
I simply do not know enough about Linux or what this chap is talking about to know if what is being suggested is sound.
Below is a simple example of what I mean
Now using ‘passwd‘ command we can change the root password. And once you have root password you owns the Linux Machine.
Does Linux allow you to change a Root password without actually knowing what the current root password is? (seems like that is what is being suggested here).
I would really like to know more about protecting my machine above and beyond the simple measures that i already have in place (i.e an uncomplicated firewall with some added rules, no script for my firefox browser, permissions set to read only for my files, router reset to default factory settings regulalry and have set up a password for my BIOS).
Any help with the above or security tips to help strengthen overall system security would be greatly apprieciated.