This is what the wiki says. I've never heard of Linux-FT, but I did remember that someone took the certification process all the way. Linux systems adhere to P

This is what the wiki says. I've never heard of Linux-FT, but I did remember that someone took the certification process all the way. Linux systems adhere to POSIX,[81] SUS,[82] LSB, ISO, and ANSI standards where possible, although to date only one Linux distribution has been POSIX.1 certified, Linux-FT.[83][84] https://en.wikipedia.org/wiki/Linux https://en.wikipedia.org/wiki/Linux Archive.org has the supporting documents. https://web.archive.org/web/20160404122450/http://www.linuxjournal.com/article/0131 https://web.archive.org/web/20160404122450/http://www.linuxj... "Unifix GmbH (Braunschweig, Germany) developed a Linux system that has been certified to conform to FIPS 151-2 (a superset of POSIX.1). This technology was available in Unifix' own distribution called Unifix Linux 2.0 and in Lasermoon's Linux-FT." https://web.archive.org/web/20111010111215/http://www.debian.org/doc/FAQ/ch-compat.en.html https://web.archive.org/web/20111010111215/http://www.debian...