@ **shvrdavid OS/400 or one of it's mainframe variants perhaps? (We use AS/400s)
**

We sort of have a winner, AS/400 is Version 4 of the client (terminal) side. OS/390, which morphed into Zos (server side, now in version 2.1) is the longest running op system in existence and the most secure. MS and Linux cant hold a candle to is it terms of security. Even if you can get to the main console (physically, as in standing in front of it) there is nothing you can do to gain access to it without going thru layers of security if it is properly set up. You cant even read or access the directories on the disks at the main console without the proper permissions. If you want your system to be like Fort Noxx, standard installations of Windows and Linux need not apply for the position. With custom installs, Windows offers better protection than Linux does, even thou both of them have known and unknown security issues. Lots of people will argue that, but it is next to impossible to do a fully protected installation of Linux due to root access holes which can wreck havoc. It is fairly easy to do it in Windows and the tools to do so are freely available with tons of documentation, it is not the norm to do scripted installs of Windows but it is fully supported on all versions.

I have been working with MS op systems since DOS, Linux before its release to the GNU, and Unix and IBM OP systems since the middle 70's.

So take what others say about it however you want since they appear to have far more experience with it than I do. Many people don't have a clue about operating system security and believe that if it is on the internet, it must be true.

The biggest Achilles heal Linux has, is that there are to many versions of it floating around that are all basically copies of the failed Minix project.

The most successful thing that came from Linux is the server and cell phone market..........

Ironically, Debian Linux is ranked 5th in Linux server use, and the top 4 are version based off if it in one way or another.

If Debian is so great, what have 4 other versions based off of it proved to be better server options? Simple answer is companies like RedHat, which is a large corporation, are far better at it than Debian developers due to that thing called money.........

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