You need krb5-auth with native extensions to use this plugin.
gem install krb5-auth
Authentication is done against the system’s default realm so configure your /etc/krb5.conf to authenticate against your organization’s realm.
Go to your Redmine root directory and install the plugin like this:
./script/plugin install git://github.com/se/redmine_kerberos_authentication.git To automatically install the required dependencies use bundler:
bundle install
After that you need to add Kerberos to the list of available Authentication sources by running the migration rake task:
rake db:migrate_plugins
That’s it.