Hello folks. After some weeks of hard work trying to install nisUserFolder I discoverd that we use md5 password encryptation. Then, after some hours I've modified this way: from this: def authenticate(self, password, request): domains=self.getDomains() person = match(self.name,'passwd.byname') vals = split(person, ':') if vals[1][-1] == '\n': #name:pwd\n pwd = vals[1][:-1] else: pwd = vals[1] #normal way salt = vals[1][:2] #ye old nisUserFolder w/o md5 secret = crypt(password, salt) if domains: return (secret==pwd) and domainSpecMatch(domains, request) return secret==pwd to this: def authenticate(self, password, request): domains=self.getDomains() person = match(self.name,'passwd.byname') vals = split(person, ':') if vals[1][-1] == '\n': #name:pwd\n pwd = vals[1][:-1] else: pwd = vals[1] #normal way if vals[1][:3] == '$1$': #md5 way delim = find(vals[1], '$', 3) salt = vals[1][:delim] #$1$salt else: salt = vals[1][:2] #ye old nisUserFolder w/o md5 #salt = vals[1][:2] #ye old nisUserFolder w/o md5 secret = crypt(password, salt) if domains: return (secret==pwd) and domainSpecMatch(domains, request) return secret==pwd And now Z2.py lasts no more than 5 minutes. It simply dies without any warning, without any message at all. What can I do to validate these users *and* make Zope work correctly (yes, it used to work before nisUserFolder modification). Thanx. Fabio Augusto Mazzarino - mazza@radiumsystems.com.br P.S.: What is past tense for to ping?