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I have some sensitive data in ram that i prefer not to be on disk. How do i disable swap? I have more then enough ram. If ram gets too high i have no problems with processes being terminated. How do I disable swap?

Note: I do not have a swap partition and this is running in a VM (VMWare)

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up vote 22 down vote accepted

sudo swapoff -a
is the usual way to turn off swap, with the swapon -a command used to turn it back on. See man swapoff for more information about turning off swap for explicit devices.

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This doesn't seem to persist across a reboot? –  ebyrob Apr 20 '13 at 2:31
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Permanent changes to swap are usually made in /etc/fstab. –  ubfan1 Apr 20 '13 at 5:51
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