How to use Ubuntu chroot to isolate applications?

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

How to use Ubuntu chroot to isolate applications?

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1 answer

by caesar_kertzmann , 2 years ago

@monroe.bahringer 

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.