In this day and age, where almost *everybody* has a Facebook account, it's quite possible that the interviewer thought you were simply lying about not having one because there was something on it that you didn't want him/her to see - there are quite a few employees who ask for Facebook logins as a screening mechanism. Given that you're statistically more likely to have a facebook and lie about not having one, than to truly not have one, more people will go with the statistic as Facebook has become *that* ingrained into our lives. As a fellow non-user of that website, I've run into a number of people - too many, IMO, who were literally astounded that I don't have a FB of my own. Frankly, I don't trust the company with my data. Your reasons may vary, but the results are all the same: you're looked upon with suspicion and disbelief for your choices. And that may cost you some semblance of "normalcy" which in this case, has cost you your potential job.

There's downsides to everything. I don't use anything in the 25.0.0.0/8 range, as the entire block is owned by the Ministry of Defense in GB. I'd wager that nobody who reads this article has ever connected to a 25/8 IP, including you, and the user inquiring about a solution to his CGN conundrum.

I've been using LogMeIn's Hamachi system to accomplish this. It's a virtual LAN solution that links machines behind firewalls or CGN devices. The down side is that it has to be installed on all devices that access the virtual LAN, and they don't have any mobile clients (yet), but if you need access from a device you can't install the Hamachi client on, you can always get a cheap VPS, install the linux client on it, and set up some port forwarding - the Hamachi IPs are static, so each machine always gets the same one.

There are some limitations with the free version (5 machines in a virtual LAN, connection only works with a logged in user on desktop clients), but the $30ish it costs per year for a 32 user license is very reasonable. And it supports IPv6 and IPv4 across the VLAN, too.

LogMeIn has a product called "Hamachi" that will give you a personal VPN. You can use it to access devices behind a CGN device. If you need support on mobile devices where the Hamachi client is unavailable, you can rent a small VPS server at a host somewhere, install Hamachi on it, and use it to "bounce" ssh and other ports into your Hamachi VPN.

Chances are you'll need to pay the ~$30 yearly fee for using Hamachi to bypass the "free" restrictions (it only works if there's a user logged in on Windows and Mac).

You're going to have to translate all strings in all of your products to include "eh?" at the end of paragraphs.

I'd go with Python, personally. It's modern design and robustness coupled with ease of implementation will be good to teach the basics. Unlike compiled languages, development doesn't need a special environment and finessing a compiler.