open ldap configuration on rhel3-u4
Rick Stevens
ricks at nerd.com
Fri Aug 14 22:25:33 UTC 2009
Nilesh Joshi wrote:
> Hi Rick,
>
> I have generated cert again and started slapd.
>
> Now I see following in logs:
> conn=0 fd=9 ACCEPT from IP=127.0.0.1:36272 (IP=0.0.0.0:389)
> conn=0 op=0 BIND dn="cn=nilesh,ou=people,dc=test,dc=com" method=128
> It's same for below 2 commands:
> 1. ldapsearch -x -b "ou=people,dc=test,dc=com" -D
> "cn=nilesh,ou=people,dc=test,dc=com" -w 'password' "uid=nilesh"
> 2. ldapsearch -x -b "ou=people,dc=test,dc=com" -D
> "cn=nilesh,ou=people,dc=test,dc=com" -w password "uid=nilesh"
>
> I tried adding 'allow bind_v2 bind_anon_cred bind_anon_dn' and restarted
> openldap, the result is same.
>
> It looks like error 49 is gone.
Ok, if error 49 is gone, but you're not getting any data back, then
user "nilesh" probably doesn't have read access to the database. If
you have your slapd manual handy, read up on the "access" directives.
If you want a user to see any and all of their info, then you need a
directive such as:
access to *
by self read
by * none
in slapd.conf. That permits someone to read their own data. If you
want to let them modify their data:
access to *
by self write
by * none
(note that "write" permission also includes all lower permissions such
as auth, read, search, etc.)
> What else I need to do to fix this issue.
Looks like you're authenticating fine now, but you have to set up access
rules to allow users to see things. Here's a good on-line reference
book on how to manage an LDAP server:
http://www.zytrax.dom/books/ldap
Also, the OpenLDAP System Admin Guide should have been placed in
/usr/share/doc/openldap-servers-version/guide.html
(replace "version" with the appropriate version number) when you
installed the OpenLDAP server RPM. You can view it by opening a browser
and going to
file:///usr/share/doc/opeenldap-servers-version/guide.html
>
> Thanks and Regards,
> -Nilesh
>
> On Fri, Aug 14, 2009 at 10:04 AM, Rick Stevens <ricks at nerd.com> wrote:
>
>> Nilesh Joshi wrote:
>>
>>> Thanks Rick.
>>>
>>> I have checked using -w password. The exact command I tried was:
>>>
>>> ldapsearch -x -b "ou=people,dc=test,dc=com" -D
>>> "cn=nilesh,ou=people,dc=test,dc=com" -w password '(uid=nilesh)'
>>>
>> Did you enclose the password in single quotes to mask its value?
>>
>> Also added:
>>> access to attrs=userPassword
>>> by anonymous auth
>>> by self write
>>> by * none
>>>
>> That may not be adequate. That simply allows a user to authenticate
>> against the LDAP database. It does NOT allow a regular user to search
>> the entire database. Let's get rid of the error 49 first, then we'll
>> worry about the rest.
>>
>> However the result was same. I have confirmed that password is password for
>>> now.
>>>
>> If you're using SASL, remember that all the passwords must be stored in
>> cleartext. If the password you're going to use is in the LDAP database,
>> it must be stored in cleartext--NOT some excrypted format such as
>>
>> {MD5} cypherstring
>> {SSHA} cypherstring
>>
>> If the password is in the Cyrus SASL database, it too has to be in
>> cleartext. This is one of the weaknesses of SASL.
>>
>> If you're going to use encrypted passwords in the database, you'll need
>> to use SSL or KRB5 as the transport mechanism.
>>
>> I think, I am missing something in configuration. Can I use LDAP without
>>> sasl and if yes, what I need to do?
>>>
>> You can, but it's not recommended. Try putting this line in slapd.conf:
>>
>> allow bind_v2 bind_anon_cred bind_anon_dn
>>
>> Oh, and by the way, we prefer bottom posting on the list.
>>
>> On Thu, Aug 13, 2009 at 6:16 PM, Rick Stevens <ricks at nerd.com> wrote:
>>> Nilesh Joshi wrote:
>>>> Hi,
>>>>> I have installed openldap-2.0.27-23 on my server.
>>>>>
>>>>> I have configured certificate and path is mentioned in slapd.conf file.
>>>>>
>>>>> I am able to create root DN and also able to add user to it.
>>>>>
>>>>> When I search using cn=manager,dc=test,dc=com, it gives me correct
>>>>> answers.
>>>>> Howere, whenever I search using user id, I see error 49.
>>>>>
>>>>> ldapsearch -x -b "ou=people,dc=test,dc=com" -D
>>>>> "cn=nilesh,ou=people,dc=test,dc=com" -W '(uid=nilesh)'
>>>>>
>>>>> In logs, I see:
>>>>> conn=11 fd=10 ACCEPT from IP=192.168.1.2:53115 (IP=0.0.0.0:389)
>>>>> conn=11 op=0 BIND dn="cn=nilesh,ou=people,dc=test,dc=com" method=128
>>>>> conn=11 op=0 RESULT tag=97 err=49 text=
>>>>> conn=11 fd=10 closed (connection lost)
>>>>>
>>>>> I would like to have openldap running without sasl.
>>>>>
>>>>> How should I configure the same? How can I fix this issue?
>>>>>
>>>>> Error 49 is "invalid credentials," meaning that you didn't hand the
>>>> ldapsearch the right password for the user you're trying to bind as.
>>>> Try it again, but rather than using the "-W" (interactive) flag, try:
>>>>
>>>> -w 'your-password-here'
>>>>
>>>> If the password has shell metacharacters in it, they may be being
>>>> interpreted by the shell before being handed to the ldapsearch command.
>>>> Using the -w and the password enclosed in single quotes prevents that.
>>>>
>>>> You also have to make sure that the user you're trying to bind as has
>>>> access to the userPassword attribute in the slapd.conf file:
>>>>
>>>> access to attrs=userPassword
>>>> by anonymous auth
>>>> by self write
>>>> by * none
>>>>
>>>> ----------------------------------------------------------------------
>>>> - Rick Stevens, Systems Engineer ricks at nerd.com -
>>>> - AIM/Skype: therps2 ICQ: 22643734 Yahoo: origrps2 -
>>>> - -
>>>> - I never drink water because of the disgusting things that fish do -
>>>> - in it. -
>>>> - -- WC. Fields -
>>>> ----------------------------------------------------------------------
>>>>
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>> ----------------------------------------------------------------------
>> - Rick Stevens, Systems Engineer ricks at nerd.com -
>> - AIM/Skype: therps2 ICQ: 22643734 Yahoo: origrps2 -
>> - -
>> - Never test for an error condition you don't know how to handle. -
>>
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--
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- Rick Stevens, Systems Engineer ricks at nerd.com -
- AIM/Skype: therps2 ICQ: 22643734 Yahoo: origrps2 -
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- Brain: The organ with which we think that we think. -
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