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Re: [PHP3] Semi-OT: The Linux plunge
From: Rasmus Lerdorf (rasmus <email protected>)
Date: 03/18/99
> At least this way, I can see which one I like best, and then get its
> "official" boxed version.
One cool thing I have just started doing is to install many different
distributions in something called virtual machines. Having to wipe out
your machine each time you want to try a distribution is a pain. And
especially for developers trying to make sure that their stuff builds and
installs cleanly on as many systems as possible.
So, I am using vmware (www.vmware.com) to set up small virtual Intel
machines. I have a PII-300 box w/ 128M of ram and I typically give a
virtual machine either 32M or 64M of ram and fire it up. You can see one
of my vm's starting up at:
http://www.lerdorf.on.ca/vm/snap1.gif
Inside this vm you can then install just about anything you can install on
a normal Intel box. That includes Windows98, WindowsNT, Linux, etc.
Simply pop in a boot floppy or a CD and install just like you normally
would. If you look at:
http://www.lerdorf.on.ca/vm/snap10.png
you can see 3 vm's running at the same time. One Win98 and two
completely separate Linux vm's. Each one has its own ip and looks exactly
like a host on my network here. You can run web servers in each one and
access them from any of the others or from the underlying host OS (which
is Linux RH-5.2).
It would be nice if some ISP's out there had a look at perhaps providing
virtual server hosting this way. Provide customers with their own
complete virtual machines. That way the customer could have full root
access, recompile his kernel and basically do whatever he wanted and the
ISP could still have multiple clients per machine and each client could
run his own favourite (Intel-based) operating system. To illustrate this,
feel free to:
telnet gizmo.lerdorf.on.ca
login: root
password: hackme
This is a small vm running Linux RedHat-5.1. I have only assigned it 20M
of ram and my cpu load is hovering right around 0.02 with it running and
someone logged into it, so I don't even notice it. It will stay up until
someone wipes it out. Login and poke around.
-Rasmus
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