PENQUIN server at 5% free space on the drive

I inherited an old Linux server (with a Penquin picture on it) which runs a web-based reporting software (Driller) which ties into my Sales databases. I have just received a message that it is at 5% free disk space - which is a problem.

I have zero knowledge of this system or how to access, manage, or maintain it. The original builder of the Server also built the custom program which resides on it but the guy had retired years ago (well before my time here). After my 3.5 years at this company I have discovered that no one to this day knows how to work on it - including the IT guy I work with who has been here for 9 years.  

So, does anyone have any ideas as to how I can access this server and clean out the disk a bit? If it crashes then we are looking at about 200k and dozens of man-hours to replace the software that resides on it.
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Michael MachieIT SupervisorAsked:
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Seth SimmonsSr. Systems AdministratorCommented:
you probably want to see about getting the root password (if anyone knows it) as you will need that to do some management

what distribution?  if you are looking at the console it will say (if it's just text) something like "Red Hat Enterprise Linux" or CentOS or something similar with "Login:" on the next line
Michael MachieIT SupervisorAuthor Commented:
Fedora is the O/S. Was able to log into it via the KVM but I have zero clue as to what can be deleted and not....
Michael MachieIT SupervisorAuthor Commented:
So I was able to mount an external drive (FAT32 cuz NTFS won't mount without using some commands I guess) and started pulling files off. Does anyone know which folders would be found in C:?

When I logged in there were 7 windows open and I would hate to move/delete the wrong folders..
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Dave BaldwinFixer of ProblemsCommented:
Linux won't have a 'C:' drive, it doesn't work that way.  Linux is organized completely differently than Windows.  You should seriously consider hiring someone who knows Linux to do this.
Michael MachieIT SupervisorAuthor Commented:
I agree... unfortunately my boss doesn't...

However, in the meantime, I was able to locate some very large log files from the WebApp and moved them to an external drive (in case they were needed for some unknown function) freeing up about 30% of the drive.

Thanks for the quick responses but since I resolved it myself I will close this Question.

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Michael MachieIT SupervisorAuthor Commented:
Thanks for the quick responses but since I resolved it myself I will close this Question.
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