* doc/guix.texi (Kerberos Services)[Krb5 Service]: New subsubheading. * gnu/services/kerberos.scm (krb5-service-type): New variable. * gnu/services/configuration.scm (configuration-field-serializer, configuration-field-getter): Export variables.
* gnu/services/kerberos.scm: Fold lines to 80 character limit.
* doc/guix.texi (Kerberos Services): New node. * gnu/services/kerberos.scm: New file. * gnu/local.mk: Add it.