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The linux war stories: episode 1 - SCO...got to start somewhere

Posted 01-25-2015 at 11:11 PM by binary_pearl

While I should keep the company I worked for a secret out of respect; it was a major retail chain in the US with about 7000 locations at the time.

The year was 2007. I had only been working for 2 years in my career, and I had already advanced to the infrastructure team. At that time we were still using SCO Unix 5.0.5 or 5.0.7 on all of the servers at each location.

Out of the normal chaos, a semi-urgent request came. Apparently there were certain server models that...
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Old

Creating a virtual disk to "hide" files

Posted 02-02-2011 at 10:32 PM by binary_pearl

One of the many neat things you can do in Linux is to create a "virtual disk" (which is really just a file), and you can add other files to it. We use this at work to store an xml file into a virtual disk that are xen virtual machines use when booting to configure themselves. But you could also use this as a way
to more-or-less hide files.

So first: Create the virtual disk (The exmaple creates a 10MB disk) :
`dd if=/dev/zero of=/root/name_of_virtual_disk...
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