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I have a FreeNAS server set up to do nightly backups for my various Windows machines. I turned SSH on to make administration a little easier - I have plenty of Linux VMs and it's easier for me to SSH in and do administrative tasks (e.g. running badblocks for the first time on new drives) from there.
All my systems are behind a Netgear router which does not have port fowarding, DMZ, or anything else of that kind enabled. Am I correct in believing that it is impossible for anyone to SSH into (or otherwise access) my NAS outside of the local network? I can't, but for all I know, there's some kind of attack or packet spoofing that would make it possible.
Thanks!
It would depend on the setup of the Netgear router. Attach a computer to what is normally the internet facing connection on the Netgear and run
nmap
on it, to see which ports are open. That will tell you the possible vulnerabilities. – Roland Smith – 2014-07-06T13:10:32.230