Encrypt your swap partition in OpenBSD
By default OpenBSD 4.3 will encrypt the swap partition. To turn this on for OpenBSD versions 3.7 and below:
- Step 1 – Enable this feature without a reboot
- Step 2 – Edit the sysctl config file, so that after a reboot the swap partition will be encrypted
1. Change the kernel state variable:
# sysctl -w vm.swapencrypt.enable=1
2. Edit /etc/sysctl.conf from:
#vm.swapencrypt.enable=1
to:
vm.swapencrypt.enable=1
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