Comment 5 for bug 193915

When I execute authtool-gtk:

xkill@nopaper:~$ authtool-gtk
/usr/lib/python2.5/site-packages/apt/__init__.py:18: FutureWarning: apt API not stable yet
  warnings.warn("apt API not stable yet", FutureWarning)
debconf: DbDriver "passwords" warning: could not open /var/cache/debconf/passwords.dat: Permiso denegado
Traceback (most recent call last):
  File "/usr/bin/authtool-gtk", line 552, in <module>
    app = AuthtoolGTK()
  File "/usr/bin/authtool-gtk", line 41, in __init__
    self.authtools = Authtools()
  File "/var/lib/python-support/python2.5/AuthTool/authtools.py", line 264, in __init__
    self.method_cfgs[method] = obj(self.cfg)
  File "/usr/share/authtool/auth_methods/kerberos/kerberos.py", line 50, in __init__
    default_realm = self.db.get('krb5-config/default_realm')
  File "/var/lib/python-support/python2.5/AuthTool/authtools.py", line 192, in get
    return self.db.get(item)
  File "/usr/lib/python2.5/site-packages/debconf.py", line 60, in <lambda>
    lambda *args, **kw: self.command(command, *args, **kw))
  File "/usr/lib/python2.5/site-packages/debconf.py", line 96, in command
    raise DebconfError(status, data)
debconf.DebconfError: (10, "krb5-config/default_realm doesn't exist")

So I tried with sudo:

xkill@nopaper:~$ sudo authtool-gtk
/usr/lib/python2.5/site-packages/apt/__init__.py:18: FutureWarning: apt API not stable yet
  warnings.warn("apt API not stable yet", FutureWarning)
Traceback (most recent call last):
  File "/usr/bin/authtool-gtk", line 552, in <module>
    app = AuthtoolGTK()
  File "/usr/bin/authtool-gtk", line 41, in __init__
    self.authtools = Authtools()
  File "/var/lib/python-support/python2.5/AuthTool/authtools.py", line 264, in __init__
    self.method_cfgs[method] = obj(self.cfg)
  File "/usr/share/authtool/auth_methods/kerberos/kerberos.py", line 50, in __init__
    default_realm = self.db.get('krb5-config/default_realm')
  File "/var/lib/python-support/python2.5/AuthTool/authtools.py", line 192, in get
    return self.db.get(item)
  File "/usr/lib/python2.5/site-packages/debconf.py", line 60, in <lambda>
    lambda *args, **kw: self.command(command, *args, **kw))
  File "/usr/lib/python2.5/site-packages/debconf.py", line 96, in command
    raise DebconfError(status, data)
debconf.DebconfError: (10, "krb5-config/default_realm doesn't exist")

Later I installed krb5-clients:
sudo apt-get install krb5-clients

And it works OK with sudo, but without sudo it doesn't work.

There are two problems:

1) Package Dependencies -> krb5-clients
2) authtool-gtk -> Must be run with UID=0 (like sudo, gksu or something else)