My access rules in the slapd.conf are the following: access to attrs=userPassword         by self write         by anonymous auth         by dn.base="cn=sysadmin,dc=mydomain,dc=com" write         by group.exact="cn=itmanager,ou=manager,dc=mydomain,dc=com" write         by * none access to *         by self write         by dn.base="cn=sysadmin,dc=mydomain,dc=com" write         by group.exact="cn=itmanager,ou=manager,dc=mydomain,dc=com" write         by * read If I don't have the following entries in a client's /etc/ldap.conf, when I login the client by using ssh I will get the "Access denied" message: binddn cn=Manager,dc=mydomain,dc=com bindpw secret The ldap log is the following: May 11 16:08:18 ldapm slapd[24629]: conn=0 fd=13 ACCEPT from IP=192.168.2.161:33801 (IP=0.0.0.0:389) May 11 16:08:18 ldapm slapd[24629]: conn=0 op=0 BIND dn="" method=128 May 11 16:08:18 ldapm slapd[24629]: conn=0 op=0 RESULT tag=97 err=0 text= May 11 16:08:18 ldapm slapd[24629]: conn=0 op=1 SRCH base="dc=mydomain,dc=com" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uid=luke_l))" May 11 16:08:18 ldapm slapd[24629]: conn=0 op=1 SRCH attr=uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass May 11 16:08:18 ldapm slapd[24629]: conn=0 op=1 SEARCH RESULT tag=101 err=0 nentries=0 text= May 11 16:08:23 ldapm slapd[24629]: conn=0 op=2 SRCH base="dc=mydomain,dc=com" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uid=luke_l))" May 11 16:08:23 ldapm slapd[24629]: conn=0 op=2 SRCH attr=uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass May 11 16:08:23 ldapm slapd[24629]: conn=0 op=2 SEARCH RESULT tag=101 err=0 nentries=0 text= May 11 16:08:23 ldapm slapd[24629]: conn=1 fd=16 ACCEPT from IP=192.168.2.161:33802 (IP=0.0.0.0:389) May 11 16:08:23 ldapm slapd[24629]: conn=1 op=0 BIND dn="" method=128 May 11 16:08:23 ldapm slapd[24629]: conn=1 op=0 RESULT tag=97 err=0 text= May 11 16:08:23 ldapm slapd[24629]: conn=1 op=1 SRCH base="dc=mydomain,dc=com" scope=2 deref=0 filter="(uid=luke_l)" May 11 16:08:23 ldapm slapd[24629]: conn=1 op=1 SEARCH RESULT tag=101 err=0 nentries=0 text= If I have the binddn and bindpw using the distinguished name, Manager, the login will succeed. The ldap log is the following:May 11 17:22:32 ldapm slapd[24629]: conn=20 op=3 SEARCH RESULT tag=101 err=0 nentries=1 text= May 11 17:22:32 ldapm slapd[24629]: conn=20 op=4 SRCH base="dc=mydomain,dc=com" scope=2 deref=0 filter="(uid=luke_l)" May 11 17:22:32 ldapm slapd[24629]: conn=20 op=4 SEARCH RESULT tag=101 err=0 nentries=1 text= May 11 17:22:32 ldapm slapd[24629]: conn=20 op=5 SRCH base="dc=mydomain,dc=com" scope=2 deref=0 filter="(&(objectClass=posixGroup)(|(memberUid=luke_l)(uniqueMember=uid=luke_l,ou=people,dc=mydomain,dc=com)))" May 11 17:22:32 ldapm slapd[24629]: conn=20 op=5 SRCH attr=cn userPassword memberUid uniqueMember gidNumber May 11 17:22:32 ldapm slapd[24629]: <= bdb_equality_candidates: (uniqueMember) not indexed May 11 17:22:32 ldapm slapd[24629]: conn=20 op=5 SEARCH RESULT tag=101 err=0 nentries=0 text= May 11 17:22:32 ldapm slapd[24629]: conn=20 op=6 UNBIND May 11 17:22:32 ldapm slapd[24629]: conn=20 fd=18 closed May 11 17:22:32 ldapm slapd[24629]: conn=21 fd=16 ACCEPT from IP=192.168.2.161:33816 (IP=0.0.0.0:389) May 11 17:22:32 ldapm slapd[24629]: conn=21 op=0 BIND dn="cn=Manager,dc=mydomain,dc=com" method=118 May 11 17:22:32 ldapm slapd[24629]: conn=21 op=0 BIND dn="cn=Manager,dc=mydomain,dc=com" mech=SIMPLE ssf=0 May 11 17:22:32 ldapm slapd[24629]: conn=21 op=0 RESULT tag=97 err=0 text= May 11 17:22:32 ldapm slapd[24629]: conn=21 op=1 SRCH base="dc=mydomain,dc=com" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uidNumber=10022))" May 11 17:22:32 ldapm slapd[24629]: conn=21 op=1 SRCH attr=uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass May 11 17:22:32 ldapm slapd[24629]: conn=21 op=1 SEARCH RESULT tag=101 err=0 nentries=1 text= May 11 17:22:32 ldapm slapd[24629]: conn=18 op=6 SRCH base="dc=mydomain,dc=com" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uid=luke_l))" May 11 17:22:32 ldapm slapd[24629]: conn=18 op=6 SRCH attr=uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass May 11 17:22:32 ldapm slapd[24629]: conn=18 op=6 SEARCH RESULT tag=101 err=0 nentries=1 text= May 11 17:22:32 ldapm slapd[24629]: conn=22 fd=18 ACCEPT from IP=192.168.2.161:33817 (IP=0.0.0.0:389) May 11 17:22:32 ldapm slapd[24629]: conn=22 op=0 BIND dn="cn=Manager,dc=mydomain,dc=com" method=118 May 11 17:22:32 ldapm slapd[24629]: conn=22 op=0 BIND dn="cn=Manager,dc=mydomain,dc=com" mech=SIMPLE ssf=0 May 11 17:22:32 ldapm slapd[24629]: conn=22 op=0 RESULT tag=97 err=0 text= May 11 17:22:32 ldapm slapd[24629]: conn=22 op=1 SRCH base="dc=mydomain,dc=com" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uidNumber=10022))" May 11 17:22:32 ldapm slapd[24629]: conn=22 op=1 SRCH attr=uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass May 11 17:22:32 ldapm slapd[24629]: conn=22 op=1 SEARCH RESULT tag=101 err=0 nentries=1 text= May 11 17:22:32 ldapm slapd[24629]: conn=23 fd=20 ACCEPT from IP=192.168.2.161:33818 (IP=0.0.0.0:389) May 11 17:22:32 ldapm slapd[24629]: conn=23 op=0 BIND dn="cn=Manager,dc=mydomain,dc=com" method=118 May 11 17:22:32 ldapm slapd[24629]: conn=23 op=0 BIND dn="cn=Manager,dc=mydomain,dc=com" mech=SIMPLE ssf=0 May 11 17:22:32 ldapm slapd[24629]: conn=23 op=0 RESULT tag=97 err=0 text= May 11 17:22:32 ldapm slapd[24629]: conn=23 op=1 SRCH base="dc=mydomain,dc=com" scope=2 deref=0 filter="(&(objectClass=posixAccount)(uidNumber=10022))" May 11 17:22:32 ldapm slapd[24629]: conn=23 op=1 SRCH attr=uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass May 11 17:22:32 ldapm slapd[24629]: conn=23 op=1 SEARCH RESULT tag=101 err=0 nentries=1 text= May 11 17:22:32 ldapm slapd[24629]: conn=23 fd=20 closed (connection lost) What should I do to fix the problem and bind the server anonymously but get the authetication working? Thanks. Luke

----- Original Message ---- From: Dieter Kluenter dieter@dkluenter.de To: openldap-technical@openldap.org Sent: Saturday, May 10, 2008 1:32:58 AM Subject: Re: Mystery - Authentication Would Fail If Not Binding With Server By Using cn=Manager

Hi,

Luke Lee leeluke77@yahoo.com writes:

I am running OpenLDAP 2.3.39 on RedHat. My login authentication on a client system will fail if I don't configure the optional binddn and bindpw by using cn=Manager.   Can anyone please enlighten me what could cause the strange problem? Thanks!

Could you be a bit more specific and could you provide the access rules of slapd.conf?

-Dieter