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   comp.databases.oracle.server      Oracle Sysadmins question their careers      44,300 messages   

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   Message 42,723 of 44,300   
   Robert Klemme to Mladen Gogala   
   Re: Docker containers   
   31 Aug 16 22:57:57   
   
   From: shortcutter@googlemail.com   
      
   On 31.08.2016 21:32, Mladen Gogala wrote:   
   > On Wed, 31 Aug 2016 19:33:14 +0200, Robert Klemme wrote:   
      
   >> VMWare and the likes simulate a complete machine including simulated   
   >> hardware.  That is why you can run a Windows in a VM that sits on a   
   >> Linux host.  Compare that to LXC and Docker where there is just one   
   >> kernel and kernel features are used to restrict access, show only a part   
   >> of the filesystem (chroot like), assign virtual network interfaces etc.   
   >> There is much less overhead.  (And of course this comes at a price: you   
   >> cannot run something inside a Docker container which requires a newer   
   >> kernel than the host has.)   
   >   
   > But you do lose portability. I very much doubt that Docker container,   
   > created for the Linux kernel would work on Winduhs.   
      
   Of course not since there is basically no distinction between host and   
   guest OS.  See my earlier explanation.   
      
   > Actually, the person who responded with the most zeal told me that I   
   > should do that because Docker crossed the $1bn boundary.   
      
   In which direction?   
      
   > https://www.youtube.com/watch?v=cKKHSAE1gIs   
      
   Amazing argument.  Does he also believe in UFOs?   
      
   Cheers   
      
   	robert   
      
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