I worked on an "Air Gapped" network. We didn't call it that. As the internet and open source took off it became more and more painful. To get files over to t

I worked on an "Air Gapped" network. We didn't call it that. As the internet and open source took off it became more and more painful. To get files over to the network, we'd have to download from internet and then burn to dvd and bring it over. The thinking was that DVD's with their write once capability would prevent unwanted files from hoping aboard. This didn't help if the file you were transfering was infected, but files were virus checked before burning. Oddly files went Windows->Dvd->HPUX machines meaning the virus scan on windows was somewhat useless. But having no access to cpan or online research on your main work machine was hard.