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Create a group called "adsl" with groupadd, change the permissions on the adsl-start and adsl-stop binaries so that they are owned by the adsl group, and add your user to the group with usermod. ...

Most of what you are running up against can be summed up as the principle of least privilege, which is one of the things that makes a *nix OS easier to secure than Windows. A lot of learning Linux...