> I'm having some trouble with the Kerberos part where I need to install > the following package: > apt-get install libsasl2-modules-gssapi-mit libsasl2-modules > > It returns > unable to locate package libsasl2-modules-gssapi-mit > unable to locate package libsas12-modules Are you copying and pasting the command or typing it? You have a typo in the output from apt-get "libsas12-modules" (note the 1 where you should have a lower case "L"), but not in the apt-get install command?