krb5-test
This small utility can be used to test your kerberos configuration. It will try to fetch a service ticket for a given service, and show you verbose diagnostic messages in case of failure. You can grab the source on floss.commonit.com. You'll need kerberos devel files (libkrb5-dev on Ubuntu) and CMake to build it. To use it, just launch it and fill the requested informations.
Download
Go to: http://floss.commonit.com/gitweb/?p=krb5-test.git;a=summary.
Git
git clone git://floss.commonit.com/krb5-test.git
Archive
Buid
On Linux you'll just need gcc, libkrb5-dev, and cmake.
mkdir build
cd build
cmake .. -DCMAKE_INSTALL_PREFIX=/usr
make
make install
On Microsoft Windows ou can build it with MinGW and CMake.