Verify DNS and Internet Connectivity

[war59312]

Hi,

I recommend adding a check to start of the script to verify DNS and Internet Connectivity is working as expected.

To avoid issues such as:

#29 (comment)

Thank you,

Will

[michealespinola]

Based on your experience in #29, that seems like a good idea. I had already been working on a debugging script that incorporates similar checks, so I may have most of this in the bag already. Hopefully I can keep it basic, because DSM's built-in DNS tools are pretty much non-existent.