Parte do settings.py

settings.py

# ...

CACHE_BACKEND = 'memcached://127.0.0.1:11211/'

# criado por mim
CACHE_KEY_PREFIX = 'easyproject'
CACHE_IGNORE_REGEXPS = (
    r'/admin.*',
)

# minha configuração de middlewares ficou assim:
MIDDLEWARE_CLASSES = (
    'django.middleware.cache.UpdateCacheMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.cache.FetchFromCacheMiddleware',
    'easyform.nginx_cache_middleware.NginxCacheMiddleware',
)

# ...