Eu movi a configuração mod_auth_kerb
para vhost.conf. E usei a diretiva Location
para desativar a autorização em alguns URLs.
# root_url
<LocationMatch "(^\/$|^$)">
Satisfy Any
</LocationMatch>
<Location /incidents/last>
Satisfy Any
</Location>
<Directory /home/user/www/>
Options -MultiViews +FollowSymLinks
AllowOverride None
Order allow,deny
Allow from all
AuthType Kerberos
AuthName "Domain login"
KrbAuthRealms DOMAIN.COM
KrbMethodK5Passwd On
Krb5KeyTab /etc/httpd/httpd.keytab
require valid-user
</Directory>
Isso resolveu meu problema.