**Exception** Verifying contents of files installed from packages is more difficult in Ubuntu, mainly due to the lack of an equivalent of ``rpm -V``. The ``debsums`` package installs the ``debsums`` command and that can be used to look for files that have changed since the package was installed. However, not all packages have MD5 checksums for all files and ``debsums`` doesn't do detailed checking like ``rpm``. Deployers are urged to run ``debsums -c`` to review changes made to files on their systems. This report takes a long time to run on most systems.