Security-Enhanced Linux secures the sandbox processes via flexible mandatory access control.
If you want to allow unconfined users to transition to the chrome sandbox domains when running chrome-sandbox, you must turn on the unconfined_chrome_sandbox_transition boolean.
setsebool -P unconfined_chrome_sandbox_transition 1
If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd serve for the sandbox_min_t, sandbox_net_t, sandbox_web_client_t, sandbox_xserver_t, sandbox_web_t, sandbox_x_client_t, sandbox_x_t, sandbox_net_client_t, you must turn on the authlogin_nsswitch_use_ldap boolean.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to allow confined applications to run with kerberos for the sandbox_min_t, sandbox_net_t, sandbox_web_client_t, sandbox_xserver_t, sandbox_web_t, sandbox_x_client_t, sandbox_x_t, sandbox_net_client_t, you must turn on the kerberos_enabled boolean.
setsebool -P kerberos_enabled 1
You can see the context of a file using the -Z option to lsP Policy governs the access confined processes have to these files. SELinux sandbox policy is very flexible allowing users to setup their sandbox processes in as secure a method as possible.
The following file types are defined for sandbox:
sandbox_devpts_t
- Set files with the sandbox_devpts_t type, if you want to treat the files as sandbox devpts data.
sandbox_exec_t
- Set files with the sandbox_exec_t type, if you want to transition an executable to the sandbox_t domain.
sandbox_file_t
- Set files with the sandbox_file_t type, if you want to treat the files as sandbox content.
sandbox_min_client_tmpfs_t
- Set files with the sandbox_min_client_tmpfs_t type, if you want to store sandbox min client files on a tmpfs file system.
sandbox_net_client_tmpfs_t
- Set files with the sandbox_net_client_tmpfs_t type, if you want to store sandbox net client files on a tmpfs file system.
sandbox_web_client_tmpfs_t
- Set files with the sandbox_web_client_tmpfs_t type, if you want to store sandbox web client files on a tmpfs file system.
sandbox_x_client_tmpfs_t
- Set files with the sandbox_x_client_tmpfs_t type, if you want to store sandbox x client files on a tmpfs file system.
sandbox_xserver_tmpfs_t
- Set files with the sandbox_xserver_tmpfs_t type, if you want to store sandbox xserver files on a tmpfs file system.
Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels.
You can see the context of a process using the -Z option to psP Policy governs the access confined processes have to files. SELinux sandbox policy is very flexible allowing users to setup their sandbox processes in as secure a method as possible.
The following process types are defined for sandbox:
sandbox_x_client_t, sandbox_net_client_t, sandbox_xserver_t, sandbox_x_t, sandbox_web_client_t, sandbox_min_t, sandbox_net_t, sandbox_web_t, sandbox_min_client_t, sandbox_t
Note: semanage permissive -a PROCESS_TYPE can