How to use Ubuntu chroot to isolate applications?

by monroe.bahringer , in category: Security , 2 months ago

How to use Ubuntu chroot to isolate applications?

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1 answer

by caesar_kertzmann , 21 days ago


Step 1: Install debootstrap

sudo apt-get install debootstrap

Step 2: Create a new directory for the chroot environment

sudo mkdir /mnt/chroot

Step 3: Use debootstrap to create a new Ubuntu environment in the directory you just created

sudo debootstrap --arch=amd64 xenial /mnt/chroot

Step 4: Bind system directories to the chroot environment

sudo mount --bind /dev /mnt/chroot/dev

sudo mount --bind /proc /mnt/chroot/proc

sudo mount --bind /sys /mnt/chroot/sys

Step 5: Chroot into the new environment

sudo chroot /mnt/chroot

Step 6: Install any applications you want to isolate

sudo apt-get install <application-name>

Step 7: Exit the chroot environment by typing "exit"

Step 8: To run an application in the chroot environment, use this command

sudo chroot /mnt/chroot <application-name>

Step 9: To stop using the chroot, unmount all mounted directories

sudo umount /mnt/chroot/dev

sudo umount /mnt/chroot/proc

sudo umount /mnt/chroot/sys

Step 10: Finally, remove the chroot directory

sudo rm -rf /mnt/chroot

Note: this is a basic guide to using a chroot environment in Ubuntu. Further customization and security measures may be necessary for your specific use case.