Bruce D Porter@DenOfEarth @kkarhan @aka_pugs it's not 100% Linux, there are still a lot of Solaris (10 and 11) servers out there.
Kevin Karhan 
@ytc1 @DenOfEarth @aka_pugs I know.
And espechally in #ScientificComputing a lot of researchers loved working with #SunMicrosystems and when #Oracle took over that relationship got sour'd instantly due to #Oracle #CEO #LarryEllison...
-> https://infosec.space/@kkarhan/114682503920794745
One of the big successes of #Sun was that they basically declared a unilateral "ceasefire" in terms of #IP & #Patents re: #OpenSource. Whereas Oracle didn't seem willing to honour that.
- Without that cooperative atmosphere we saw #OpenOffice devs literally forking off into @libreoffice and projects like #illumos and @openzfs scramble to save what was OpenSource'd and also rescue that.
Obviously #Linux with it's #GPLv2only-Kernel and most of it's Userland could not get 'closed-sourced' like #OpenSolaris which instantly got stomped out by Oracle as they wanted to sqeeze #Solaris for profits and milk their clients in typical Oracle fashion...
- Which is sad because #competition breeds #innovation and a lot of stuff like #Zones in Solaris really were at their time really forcing #KVM, #bhyve and #BSDjails to up their game for good.
Now granted, I do know someone who for most of their life made their money dealing with the intricacies of setting up #postfix, #sendmail and #courier #MailServers on Solaris and if I ask said person about that they give me a kilometer stare, so OFC like a #SysV - #Unix systems Solaris and #SunOS really are one of the reasons #WindowsNT won the "#WorkstationWar" and why - if anyone - #Apple won the last "#UnixWar"...
- Still I do am sad that I declined that #sysadmin position at a leading research center I'm not at liberty to name and I do know there's OFC still some critical infrastructure running even older Solaris servers...