Allow for jq usage if installed & add non-AWS ip check

[CrystalENVT]

No description provided.

[jgillman]

Thanks for the additions, @CrystalSpore! Sorry it's been... years... since you first made this PR.

I'd love to pull in some of your changes but would you mind splitting this into two PRs? It would be easier for me to pull them in and/or comment on changes the PRs were:

• Dockerization PR (including cron timer job which is related)
• Changes to get-dns and update-dns scripts

[CrystalENVT]

Ah sorry, just saw this.

Originally the changes were only to the get-dns & update-dns scripts, & then I later dockerized it for my own use since I wasn't expecting for the PR to ever get merged (due to the extensive time period).

So I should first pr from the commit with the DNS scripts, & then I could make a second PR after the first is merged for the docker components specifically?

[CrystalENVT]

Made a new PR #2 for just the script components, & I will make another PR for just the docker components.

I can also squash & force push the branch for #2 if you would prefer that