05 December 2011, 19:55

Hi,

Our institution is shifting from LDAP authentication to MS Active Directory. The mahara system was working with the LDAP authentication. Now we are testing to use MS A D but it doesn't work. The attributes are set as follows:

Host URL   : https://veyron.autuni.aut.ac.nz; https://enzo.autuni.aut.ac.nz

Contexts : ou=Users,ou=Accounts,ou=AUT,dc=autuni,dc=aut,dc=ac,dc=nz

User type : MS Active Directory

User attribute : sAMAccountName (I tried cn as well but didn't work either)

Search subcontexts : yes

LDAP version : 3 (2 didn't work either)

Update user info on login:  ticked

We auto-create users:  ticked

LDAP field for First Name:  givenName

LDAP field for Surname:sn

LDAP field for Email: mail

The user can't log in using Active Directory and the errors in the error_log is shown as follows:

[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] [WAR] dd (auth/ldap/lib.php:180) ldap_connect() [function.ldap-connect]: Could not create session handle: Bad parameter to an ldap routine, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] Call stack (most recent first):, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * log_message("ldap_connect() [function.ldap-connect]: Could not ...", 8, true, true, "/usr/local/apps/apache22/htdocs/mahara/auth/ldap/l...", 180) at /usr/local/apps/apache22/htdocs/mahara/lib/errors.php:446, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * error(2, "ldap_connect() [<a href='function.ldap-connect'>fu...", "/usr/local/apps/apache22/htdocs/mahara/auth/ldap/l...", 180, array(size 4)) at Unknown:0, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * ldap_connect("https://veyron.autuni.aut.ac.nz") at /usr/local/apps/apache22/htdocs/mahara/auth/ldap/lib.php:180, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * AuthLdap->ldap_connect() at /usr/local/apps/apache22/htdocs/mahara/auth/ldap/lib.php:107, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * AuthLdap->authenticate_user_account(object(stdClass), "password") at /usr/local/apps/apache22/htdocs/mahara/auth/user.php:857, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * LiveUser->login("shzhang", "password") at /usr/local/apps/apache22/htdocs/mahara/auth/lib.php:1144, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * login_submit(object(Pieform), array(size 6)) at Unknown:0, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * call_user_func_array("login_submit", array(size 2)) at /usr/local/apps/apache22/htdocs/mahara/lib/pieforms/pieform.php:430, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * Pieform->__construct(array(size 8)) at /usr/local/apps/apache22/htdocs/mahara/auth/lib.php:474, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * auth_setup() at /usr/local/apps/apache22/htdocs/mahara/init.php:239, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * require("/usr/local/apps/apache22/htdocs/mahara/init.php") at /usr/local/apps/apache22/htdocs/mahara/index.php:32, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] , referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] [WAR] dd (auth/ldap/lib.php:184) ldap_set_option(): supplied argument is not a valid ldap link resource, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] Call stack (most recent first):, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * log_message("ldap_set_option(): supplied argument is not a vali...", 8, true, true, "/usr/local/apps/apache22/htdocs/mahara/auth/ldap/l...", 184) at /usr/local/apps/apache22/htdocs/mahara/lib/errors.php:446, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * error(2, "ldap_set_option(): supplied argument is not a vali...", "/usr/local/apps/apache22/htdocs/mahara/auth/ldap/l...", 184, array(size 5)) at Unknown:0, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * ldap_set_option(false, 17, "3") at /usr/local/apps/apache22/htdocs/mahara/auth/ldap/lib.php:184, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * AuthLdap->ldap_connect() at /usr/local/apps/apache22/htdocs/mahara/auth/ldap/lib.php:107, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * AuthLdap->authenticate_user_account(object(stdClass), "password") at /usr/local/apps/apache22/htdocs/mahara/auth/user.php:857, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * LiveUser->login("shzhang", "password") at /usr/local/apps/apache22/htdocs/mahara/auth/lib.php:1144, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * login_submit(object(Pieform), array(size 6)) at Unknown:0, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * call_user_func_array("login_submit", array(size 2)) at /usr/local/apps/apache22/htdocs/mahara/lib/pieforms/pieform.php:430, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * Pieform->__construct(array(size 8)) at /usr/local/apps/apache22/htdocs/mahara/auth/lib.php:474, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * auth_setup() at /usr/local/apps/apache22/htdocs/mahara/init.php:239, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * require("/usr/local/apps/apache22/htdocs/mahara/init.php") at /usr/local/apps/apache22/htdocs/mahara/index.php:32, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] , referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] [WAR] dd (auth/ldap/lib.php:188) ldap_set_option(): supplied argument is not a valid ldap link resource, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] Call stack (most recent first):, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * log_message("ldap_set_option(): supplied argument is not a vali...", 8, true, true, "/usr/local/apps/apache22/htdocs/mahara/auth/ldap/l...", 188) at /usr/local/apps/apache22/htdocs/mahara/lib/errors.php:446, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * error(2, "ldap_set_option(): supplied argument is not a vali...", "/usr/local/apps/apache22/htdocs/mahara/auth/ldap/l...", 188, array(size 5)) at Unknown:0, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * ldap_set_option(false, 8, 0) at /usr/local/apps/apache22/htdocs/mahara/auth/ldap/lib.php:188, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * AuthLdap->ldap_connect() at /usr/local/apps/apache22/htdocs/mahara/auth/ldap/lib.php:107, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * AuthLdap->authenticate_user_account(object(stdClass), "password") at /usr/local/apps/apache22/htdocs/mahara/auth/user.php:857, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * LiveUser->login("shzhang", "password") at /usr/local/apps/apache22/htdocs/mahara/auth/lib.php:1144, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * login_submit(object(Pieform), array(size 6)) at Unknown:0, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * call_user_func_array("login_submit", array(size 2)) at /usr/local/apps/apache22/htdocs/mahara/lib/pieforms/pieform.php:430, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * Pieform->__construct(array(size 8)) at /usr/local/apps/apache22/htdocs/mahara/auth/lib.php:474, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * auth_setup() at /usr/local/apps/apache22/htdocs/mahara/init.php:239, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * require("/usr/local/apps/apache22/htdocs/mahara/init.php") at /usr/local/apps/apache22/htdocs/mahara/index.php:32, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] , referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] [WAR] dd (auth/ldap/lib.php:180) ldap_connect() [function.ldap-connect]: Could not create session handle: Bad parameter to an ldap routine, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] Call stack (most recent first):, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * log_message("ldap_connect() [function.ldap-connect]: Could not ...", 8, true, true, "/usr/local/apps/apache22/htdocs/mahara/auth/ldap/l...", 180) at /usr/local/apps/apache22/htdocs/mahara/lib/errors.php:446, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * error(2, "ldap_connect() [<a href='function.ldap-connect'>fu...", "/usr/local/apps/apache22/htdocs/mahara/auth/ldap/l...", 180, array(size 6)) at Unknown:0, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * ldap_connect("https://enzo.autuni.aut.ac.nz") at /usr/local/apps/apache22/htdocs/mahara/auth/ldap/lib.php:180, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * AuthLdap->ldap_connect() at /usr/local/apps/apache22/htdocs/mahara/auth/ldap/lib.php:107, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * AuthLdap->authenticate_user_account(object(stdClass), "password") at /usr/local/apps/apache22/htdocs/mahara/auth/user.php:857, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * LiveUser->login("shzhang", "password") at /usr/local/apps/apache22/htdocs/mahara/auth/lib.php:1144, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * login_submit(object(Pieform), array(size 6)) at Unknown:0, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * call_user_func_array("login_submit", array(size 2)) at /usr/local/apps/apache22/htdocs/mahara/lib/pieforms/pieform.php:430, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * Pieform->__construct(array(size 8)) at /usr/local/apps/apache22/htdocs/mahara/auth/lib.php:474, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * auth_setup() at /usr/local/apps/apache22/htdocs/mahara/init.php:239, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * require("/usr/local/apps/apache22/htdocs/mahara/init.php") at /usr/local/apps/apache22/htdocs/mahara/index.php:32, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] , referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] [WAR] dd (auth/ldap/lib.php:184) ldap_set_option(): supplied argument is not a valid ldap link resource, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] Call stack (most recent first):, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * log_message("ldap_set_option(): supplied argument is not a vali...", 8, true, true, "/usr/local/apps/apache22/htdocs/mahara/auth/ldap/l...", 184) at /usr/local/apps/apache22/htdocs/mahara/lib/errors.php:446, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * error(2, "ldap_set_option(): supplied argument is not a vali...", "/usr/local/apps/apache22/htdocs/mahara/auth/ldap/l...", 184, array(size 6)) at Unknown:0, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * ldap_set_option(false, 17, "3") at /usr/local/apps/apache22/htdocs/mahara/auth/ldap/lib.php:184, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * AuthLdap->ldap_connect() at /usr/local/apps/apache22/htdocs/mahara/auth/ldap/lib.php:107, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * AuthLdap->authenticate_user_account(object(stdClass), "password") at /usr/local/apps/apache22/htdocs/mahara/auth/user.php:857, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * LiveUser->login("shzhang", "password") at /usr/local/apps/apache22/htdocs/mahara/auth/lib.php:1144, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * login_submit(object(Pieform), array(size 6)) at Unknown:0, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * call_user_func_array("login_submit", array(size 2)) at /usr/local/apps/apache22/htdocs/mahara/lib/pieforms/pieform.php:430, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * Pieform->__construct(array(size 8)) at /usr/local/apps/apache22/htdocs/mahara/auth/lib.php:474, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * auth_setup() at /usr/local/apps/apache22/htdocs/mahara/init.php:239, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * require("/usr/local/apps/apache22/htdocs/mahara/init.php") at /usr/local/apps/apache22/htdocs/mahara/index.php:32, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] , referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] [WAR] dd (auth/ldap/lib.php:188) ldap_set_option(): supplied argument is not a valid ldap link resource, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] Call stack (most recent first):, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * log_message("ldap_set_option(): supplied argument is not a vali...", 8, true, true, "/usr/local/apps/apache22/htdocs/mahara/auth/ldap/l...", 188) at /usr/local/apps/apache22/htdocs/mahara/lib/errors.php:446, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * error(2, "ldap_set_option(): supplied argument is not a vali...", "/usr/local/apps/apache22/htdocs/mahara/auth/ldap/l...", 188, array(size 6)) at Unknown:0, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * ldap_set_option(false, 8, 0) at /usr/local/apps/apache22/htdocs/mahara/auth/ldap/lib.php:188, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * AuthLdap->ldap_connect() at /usr/local/apps/apache22/htdocs/mahara/auth/ldap/lib.php:107, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * AuthLdap->authenticate_user_account(object(stdClass), "password") at /usr/local/apps/apache22/htdocs/mahara/auth/user.php:857, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * LiveUser->login("shzhang", "password") at /usr/local/apps/apache22/htdocs/mahara/auth/lib.php:1144, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * login_submit(object(Pieform), array(size 6)) at Unknown:0, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * call_user_func_array("login_submit", array(size 2)) at /usr/local/apps/apache22/htdocs/mahara/lib/pieforms/pieform.php:430, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * Pieform->__construct(array(size 8)) at /usr/local/apps/apache22/htdocs/mahara/auth/lib.php:474, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * auth_setup() at /usr/local/apps/apache22/htdocs/mahara/init.php:239, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * require("/usr/local/apps/apache22/htdocs/mahara/init.php") at /usr/local/apps/apache22/htdocs/mahara/index.php:32, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] , referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] [WAR] dd (auth/ldap/lib.php:145) LDAP connection failed: https://veyron.autuni.aut.ac.nz; https://enzo.autuni.aut.ac.nz /ou=Users,ou=Accounts,ou=AUT,dc=autuni,dc=aut,dc=ac,dc=nz, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] Call stack (most recent first):, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * log_message("LDAP connection failed: https://veyron.autuni.aut....", 8, true, true) at /usr/local/apps/apache22/htdocs/mahara/lib/errors.php:111, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * log_warn("LDAP connection failed: https://veyron.autuni.aut....") at /usr/local/apps/apache22/htdocs/mahara/auth/ldap/lib.php:145, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * AuthLdap->authenticate_user_account(object(stdClass), "password") at /usr/local/apps/apache22/htdocs/mahara/auth/user.php:857, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * LiveUser->login("shzhang", "password") at /usr/local/apps/apache22/htdocs/mahara/auth/lib.php:1144, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * login_submit(object(Pieform), array(size 6)) at Unknown:0, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * call_user_func_array("login_submit", array(size 2)) at /usr/local/apps/apache22/htdocs/mahara/lib/pieforms/pieform.php:430, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * Pieform->__construct(array(size 8)) at /usr/local/apps/apache22/htdocs/mahara/auth/lib.php:474, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * auth_setup() at /usr/local/apps/apache22/htdocs/mahara/init.php:239, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89]   * require("/usr/local/apps/apache22/htdocs/mahara/init.php") at /usr/local/apps/apache22/htdocs/mahara/index.php:32, referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:45:37 2011] [error] [client 156.62.33.89] , referer: http://myportfolio.aut.ac.nz:443/mahara/
[Tue Dec 06 14:46:02 2011] [error] [client 156.62.52.126] [DBG] 32 (lib/cron.php:70) ---------- cron running Tue, 06 Dec 2011 14:46:02 +1300 ----------
[Tue Dec 06 14:46:02 2011] [error] [client 156.62.52.126] [DBG] 32 (lib/cron.php:149) Running core cron rebuild_artefact_parent_cache_dirty

Any idea what we can do to fix this?

Thanks.