This utility lets you create an executable binary, with the suid flag set. The suid flag makes it possible for an user to execute an executable as if they are the owner of the file. For example:
suid-wrapper -o run_docker_sh $(which docker) -- run -it --rm alpine sh --
With the command above, a run_docker_sh will be created. Consider this file is owned by a user named 'docker'. If a user named 'user' tries to run it, because of the suid flag, the process that will be started will have the uid set to that of 'docker', with the same permissions 'docker' has.
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Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
If you’re running Ubuntu 16.04 LTS (Xenial Xerus) or later, including Ubuntu 18.04 LTS (Bionic Beaver) and Ubuntu 20.04 LTS (Focal Fossa), you don’t need to do anything. Snap is already installed and ready to go.
For versions of Ubuntu between 14.04 LTS (Trusty Tahr) and 15.10 (Wily Werewolf), as well as Ubuntu flavours that don’t include snap by default, snap can be installed from the Ubuntu Software Centre by searching for snapd.
Alternatively, snapd can be installed from the command line:
sudo apt update
sudo apt install snapd
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
To install suid-wrapper, simply use the following command:
sudo snap install suid-wrapper
Browse and find snaps from the convenience of your desktop using the snap store snap.
Interested to find out more about snaps? Want to publish your own application? Visit snapcraft.io now.