openldap-technical

openldap-technical@openldap.org

9 participants
9868 discussions

FTP authentication against openldap
by Aravind Arjunan 31 Jul '08

31 Jul '08

hi, I had configured openldap in RHEL 5 and all my users are in ldap database. My FTP want to authenticate with my ldap users. how to do that, plz help me with this issue. Guide me with any link to configure FTP authentication with ldap.

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slapd 2.4.10 and replication
by Christophe Thibault 31 Jul '08

31 Jul '08

Hi, I have two 2.4.10 slapd servers running on two machines, and I'm trying to setup replication. My problem is that the master dies when the slave try to connect to it (segmentation fault). I don't know where to search, so any help or idea is welcome :) * master configuration: ... syncprov-checkpoint 100 100 syncprov-sessionlog 100 ... * slave configuration: ... syncrepl rid=002 provider=ldap://172.16.0.3 type=refreshOnly interval=00:00:03:00 searchbase="dc=mycorp,dc=com" filter="(objectClass=*)" attrs="*,+" scope=sub schemachecking=off bindmethod=simple binddn="cn=Manager,dc=mycorp,dc=com" credentials=xxxxxx retry="60 +" ... Thanks, chris -- Christophe THIBAULT - Planisware 102 Rue Etienne Dolet 92247 Malakoff Cedex France http://www.planisware.com

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Re: Autofs-OpenLDAP Assistance
by Santosh Balan 31 Jul '08

31 Jul '08

Hi Buchan, The below settings you are saying are to be done on client side. But how would you configure seetings in ldap or the server side. How would the ldif files look like. Also I need it to communicate and authenticate for my qmail users. And my qmail users mails are stored in the /home partition of the Mail server. Then will it not conflict with my mail server's and login user's partition. How will I over come this issue. Can you please revert on the same. Anyways thanks for your reply. Thanks and Regards Santosh Balan +91-9819419509 > ----- Original Message ----- > From: "Buchan Milne" <bgmilne(a)staff.telkomsa.net> > To: openldap-technical(a)openldap.org > Subject: Re: Autofs-OpenLDAP Assistance > Date: Wed, 30 Jul 2008 11:54:25 +0200 > > > On Tuesday 29 July 2008 20:19:33 Sven Ulland wrote: > > Santosh Balan wrote: > > > Can you please guide and provide some appropriate doccumentation or > > > method as how I hv to go about with the installation of OpenLDAP and > > > autofs such that it will authenticate my users and automatically > > > mounts the users partition. > > Depending on how your infrastructure is set up, you could get home directories > automounted for every user with a single automount (wildcard) rule. Unless you > give more details, it is difficult to know how you are associating the need > for home directories and automount rules. > > > To use ldap for login, you need to get nsswitch and pam to talk ldap. > > It is easily done by installing libnss-ldapd (or libnss-ldap -- they > > are functionally equivalent) and libpam-ldap. Package names are likely > > to be different on your platform -- these are from Debian. > > > > First change /etc/nsswitch.conf so that it reads something like this: > > > > passwd: compat ldap > > group: compat ldap > > shadow: compat ldap > > I would avoid compat unless you actually require the features. See the > discussion of compat in nsswitch.conf(5). Additionally, I would avoid adding > ldap to shadow unless you have applications that require access to the > password hash or are intending to use nss_ldap->pam_unix for authentication > (and forego any ldap authorization features). > > > hosts: files dns > > networks: files > > protocols: db files > > services: db files > > ethers: db files > > rpc: db files > > netgroup: nis > > automount: ldap > > > > Then set up /etc/pam.d/common-{account,auth,password,session} with the > > following *additions*: > > > > common-account: > > account sufficient pam_succeed_if.so uid < 1000 quiet > > account [default=bad success=ok user_unknown=ignore] pam_ldap.so > > account required pam_permit.so > > I would rather suggest adding: > > account sufficient pam_localuser.so > account sufficient pam_ldap.so > account required pam_deny.so > > otherwise password expiry, host attribute use etc. will most likely not work. > > > common-auth: > > auth requisite pam_succeed_if.so uid >= 1000 quiet > > auth sufficient pam_ldap.so use_first_pass > > auth required pam_deny.so > > > > common-password: > > password sufficient pam_ldap.so use_authtok > > password required pam_deny.so > > > > common-session > > session optional pam_ldap.so > > pam_ldap doesn't implement session as far as I know, pam_mkhomedir would be a > better candidate for the line above. > > > > > (There is probably some silly configuration in the above, but it > > works. I haven't looked into the details of PAM yet.) > > Have you tested every aspect with the configuration above? > > > Next, install autofs5-ldap (or v4 if you want). It is important that > > you understand the structure of autofs entries in ldap. You can get an > > overview here: http://efod.se/blog/archive/2006/06/27/autofs-and-ldap > > > > Finally, make sure that your /etc/ldap.conf (or /etc/ldap/ldap.conf), > > /etc/autofs_ldap_auth.conf and /etc/nss-ldapd.conf are set up to point > > to your ldap directory server. > > > > When things don't work, try running each daemon in debug mode. This > > is particularly true for slapd and the nslcd (that comes in > > libnss-ldapd). Also have a look in /var/log/auth.log or equivalent, to > > see if logins are accepted. > > > And disable nscd while troubleshooting. > > Regards, > Buchan > = -- Powered by Outblaze

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Understanding TLS SSF
by J Davis 31 Jul '08

31 Jul '08

Greetings, I'm testing an installation of openldap 2.4.9. I want to enforce TLS for all access to the directory. My problem is that I cannot get the client to meet the ssf restictions I have in place. The documentation I've seen on ssf and tls_ssf is very sparse so I don't really understand what it does. I'm using self signed cert created using the openssl CA.sh script. Relevant portions of the slapd.conf... TLSCACertificateFile /etc/ldap/ssl/cacert.pem TLSCertificateFile /etc/ldap/ssl/servercrt.pem TLSCertificateKeyFile /etc/ldap/ssl/serverkey.pem ... access to * by tls_ssf=128 ssf=128 anonymous auth by tls_ssf=128 ssf=128 self write Relevant portions of the lapd.conf... TLS_CACERT /etc/ldap/ssl/cacert.pem With those ACLs in place I get the following error: $ ldapsearch -x -ZZ -D "uid=jake,ou=people,dc=example,dc=com" -W -b "uid=jake,ou=people,dc=example,dc=com" ldap_bind: Invalid credentials (49) And slapd in debug mode shows me that I didn't meet the ssf requirments... connection_read(15): unable to get TLS client DN, error=49 id=0 conn=0 fd=15 TLS established tls_ssf=32 ssf=32 ... <= check a_authz.sai_tls_ssf: ACL 128 > OP 32 I'm not really sure where to go from here. Any advice about how to increase the SSF of my connection would be greatly appreciated. Thanks, -Jake

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Troubleshooting syncrepl
by John Oliver 30 Jul '08

30 Jul '08

I've set up a pair of OpenLDAP servers to work with, so that I can figure out my SSL problem without worrying about breaking my currently-working LDAP server. I got the producer up and running in about two minutes. I expected to get the consumer up just as fast, but ran into a problem... the sunchronization isn't succeeding. So I started logging and got: Consumer: Jul 30 08:55:32 unix-services2 slapd[8041]: slapd starting Jul 30 08:55:32 unix-services2 slapd[8041]: daemon: added 4r Jul 30 08:55:32 unix-services2 slapd[8041]: daemon: added 7r Jul 30 08:55:32 unix-services2 slapd[8041]: daemon: select: listen=7 active_threads=0 tvp=zero Jul 30 08:55:32 unix-services2 slapd[8041]: =>do_syncrepl Jul 30 08:55:32 unix-services2 slapd[8041]: do_syncrep1: ldap_sasl_bind_s failed (49) Jul 30 08:55:32 unix-services2 slapd[8041]: daemon: shutdown requested and initiated. Jul 30 08:55:32 unix-services2 slapd[8041]: daemon: closing 7 Jul 30 08:55:32 unix-services2 slapd[8041]: slapd shutdown: waiting for 0 threads to terminate Producer: Jul 30 08:55:18 test1 slapd[4919]: connection_get(13) Jul 30 08:55:18 test1 slapd[4919]: connection_get(13): got connid=0 Jul 30 08:55:18 test1 slapd[4919]: connection_read(13): checking for input on id=0 Jul 30 08:55:18 test1 slapd[4919]: ber_get_next on fd 13 failed errno=11 (Resource temporarily unavailable) Jul 30 08:55:18 test1 slapd[4919]: daemon: select: listen=7 active_threads=0 tvp=NULL Jul 30 08:55:18 test1 slapd[4919]: daemon: select: listen=8 active_threads=0 tvp=NULL Jul 30 08:55:18 test1 slapd[4919]: do_bind Jul 30 08:55:18 test1 slapd[4919]: >>> dnPrettyNormal: <cn=syncuser,dc=mydomain,dc=com> Jul 30 08:55:18 test1 slapd[4919]: <<< dnPrettyNormal: <cn=syncuser,dc=mydomain,dc=com>, <cn=syncuser,dc=mydomain,dc=com> Jul 30 08:55:18 test1 slapd[4919]: do_bind: version=3 dn="cn=syncuser,dc=mydomain,dc=com" method=128 Jul 30 08:55:18 test1 slapd[4919]: conn=0 op=0 BIND dn="cn=syncuser,dc=mydomain,dc=com" method=128 Jul 30 08:55:18 test1 slapd[4919]: ==> bdb_bind: dn: cn=syncuser,dc=mydomain,dc=com Jul 30 08:55:18 test1 slapd[4919]: bdb_dn2entry("cn=syncuser,dc=mydomain,dc=com") Jul 30 08:55:18 test1 slapd[4919]: => bdb_dn2id("cn=syncuser,dc=mydomain,dc=com") Jul 30 08:55:18 test1 slapd[4919]: <= bdb_dn2id: get failed: DB_NOTFOUND: No matching key/data pair found (-30989) Jul 30 08:55:18 test1 slapd[4919]: send_ldap_result: conn=0 op=0 p=3 Jul 30 08:55:18 test1 slapd[4919]: send_ldap_result: err=49 matched="" text="" Jul 30 08:55:18 test1 slapd[4919]: send_ldap_response: msgid=1 tag=97 err=49 Jul 30 08:55:18 test1 slapd[4919]: conn=0 op=0 RESULT tag=97 err=49 text= Googling for do_syncrep1: ldap_sasl_bind_s failed (49) indicates that this is likely to be an authentication issue with my syncuser. I double-checked the password, and verified that it's set as cleartext in slapd.conf I then tried to log on to a machine using the producer as the authentication server, since there's nothing (that I can think of) that makes this user in any way special. It logs on... and about a half second later is booted back out. No logs on the client machine indicate why. Googling bdb_dn2id: get failed: DB_NOTFOUND: No matching key/data pair found (-30989) led to many mentions of this almost certainly being a permissions issue, but: [root@test1 ~]# ls -l /var/lib/ldap/ total 69816 -rw-r--r-- 1 ldap ldap 2048 Jul 30 08:54 alock -rw------- 1 ldap ldap 28672 Jul 29 15:45 cn.bdb -rw------- 1 ldap ldap 24576 Jul 29 15:45 __db.001 -rw------- 1 ldap ldap 80019456 Jul 29 15:45 __db.002 -rw------- 1 ldap ldap 335552512 Jul 29 15:45 __db.003 -rw------- 1 ldap ldap 2359296 Jul 29 15:45 __db.004 -rw------- 1 ldap ldap 352256 Jul 29 15:45 __db.005 -rw------- 1 ldap ldap 24576 Jul 29 15:45 __db.006 -rw-r----- 1 ldap ldap 886 Jul 29 15:41 DB_CONFIG -rw------- 1 ldap ldap 24576 Jul 29 15:45 dn2id.bdb -rw------- 1 ldap ldap 8192 Jul 29 15:45 gidNumber.bdb -rw------- 1 ldap ldap 20480 Jul 29 15:45 givenName.bdb -rw------- 1 ldap ldap 98304 Jul 30 08:54 id2entry.bdb -rw------- 1 ldap ldap 10485760 Jul 30 08:54 log.0000000001 -rw------- 1 ldap ldap 8192 Jul 29 15:45 loginShell.bdb -rw------- 1 ldap ldap 8192 Jul 29 15:45 mail.bdb -rw------- 1 ldap ldap 20480 Jul 29 15:45 memberUid.bdb -rw------- 1 ldap ldap 8192 Jul 29 15:45 objectClass.bdb -rw------- 1 ldap ldap 8192 Jul 29 15:45 ou.bdb -rw------- 1 ldap ldap 20480 Jul 29 15:45 sn.bdb -rw------- 1 ldap ldap 20480 Jul 29 15:45 uid.bdb -rw------- 1 ldap ldap 8192 Jul 29 15:45 uidNumber.bdb They look OK to me. What can I do to further troubleshoot this issue? I want to make 100% sure that my underlying LDAP is working before I tackle the SSL part. -- *********************************************************************** * John Oliver http://www.john-oliver.net/ * * * ***********************************************************************

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role based access to various systems
by amit vyas 30 Jul '08

30 Jul '08

Hi All, I am little bit new to LDAP directory system. Presently, i am using OpenLDAP to authenticate users. Now i want authorization for various system(Like versioning system, bug tracking system etc.) So want to store the access rights corresponding to different roles in LDAP (Read, Write, Update, Delete permissions). Can anybody give me sample .ldif for the same or any other useful information. It will be very useful......... Regards Amit Download prohibited? No problem. CHAT from any browser, without download. Go to http://in.webmessenger.yahoo.com/

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Autofs-OpenLDAP Assistance
by Santosh Balan 30 Jul '08

30 Jul '08

Hi Friends, I am new to this LDAP community. I am haivng redhat evironment on my servers and my clients are also linux based thin clients or redhat linux based clients. I am trying to configure LDAP to authenticate my user to login to the machine and then automatically mount a partition to the user's machine. I have searched through the net and unable to find an appropriate doccumentation on the same. Can you please guide and provide some appropriate doccumentation or method as how I hv to go about with the installation of OpenLDAP and autofs such that it will authenticate my users and automatically mounts the users partition. Thanks and Regards Santosh Balan +91-9819419509 = -- Powered by Outblaze

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Re: N-way multimaster
by Miguel Jinez 29 Jul '08

29 Jul '08

Sure In this case the process was: master B and master C are without service master A performs a delete restart masters A B C Master A: # 20080729212056.000003Z, accesslog dn: reqStart=20080729212056.000003Z,cn=accesslog objectClass: auditDelete reqStart: 20080729212056.000003Z reqEnd: 20080729212056.000004Z reqType: delete reqSession: 33 reqAuthzID: cn=admin,dc=ar reqDN: cn=pbo101,dc=dominio,dc=ar reqResult: 0 Master B: # 20080729212438.000000Z, accesslog dn: reqStart=20080729212438.000000Z,cn=accesslog objectClass: auditModify reqStart: 20080729212438.000000Z reqEnd: 20080729212438.000001Z reqType: modify reqSession: 4294967295 reqAuthzID: cn=admin,dc=ar reqDN: dc=ar reqResult: 0 reqMod: contextCSN:= 20080728211620.143999Z#000000#003#000000 reqMod: contextCSN:= 20080729212056.356833Z#000000#001#000000 reqMod: contextCSN:= 20080728211533.044990Z#000000#002#000000 Master C: # 20080729212911.000000Z, accesslog dn: reqStart=20080729212911.000000Z,cn=accesslog objectClass: auditModify reqStart: 20080729212911.000000Z reqEnd: 20080729212911.000002Z reqType: modify reqSession: 4294967295 reqAuthzID: cn=admin,dc=ar reqDN: dc=ar reqResult: 0 reqMod: contextCSN:= 20080728211620.143999Z#000000#003#000000 reqMod: contextCSN:= 20080729212056.356833Z#000000#001#000000 reqMod: contextCSN:= 20080728211533.044990Z#000000#002#000000 Migue 2008/7/29 Gavin Henry <ghenry(a)openldap.org> > <quote who="Miguel Jinez"> > > Hi I have test from zero and I have test with historical information, I > > have > > found my old configuration and the logs are different, here master A: > > Can we see your actual logs, not the accesslog ones after the test when/i > fit fails. > > Thanks. > > -- > Kind Regards, > > Gavin Henry. > OpenLDAP Engineering Team. > > E ghenry(a)OpenLDAP.org > > Community developed LDAP software. > > http://www.openldap.org/project/ >

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translucent overlay with local-only entries
by Sven Ulland 29 Jul '08

29 Jul '08

I'm trying to extend an ldap directory using the translucent overlay, like many before me: http://www.openldap.org/lists/openldap-software/200802/msg00128.html http://www.openldap.org/lists/openldap-software/200802/msg00267.html http://www.openldap.org/lists/openldap-software/200511/msg00216.html http://www.openldap.org/lists/openldap-software/200707/msg00471.html Before version 2.4.8, this wasn't possible. Howard Chu seems to have fixed this in rev 1.40 (before release 2.4.8) of translucent.c: http://www.openldap.org/devel/cvsweb.cgi/servers/slapd/overlays/translucent… (http://www.openldap.org/lists/openldap-bugs/200712/msg00109.html) Although it seems to have been fixed, I cannot get it to work on my setup. I use the packaged v2.4.10 in Debian testing. My config: # Config start include /etc/ldap/schema/core.schema include /etc/ldap/schema/cosine.schema include /etc/ldap/schema/nis.schema include /etc/ldap/schema/inetorgperson.schema pidfile /var/run/slapd/slapd.pid argsfile /var/run/slapd/slapd.args loglevel none modulepath /usr/lib/ldap moduleload back_hdb moduleload back_ldap moduleload translucent sizelimit 500 tool-threads 1 backend hdb backend ldap database hdb directory /var/lib/ldap/translucent suffix "dc=example,dc=com" rootdn "cn=admin,dc=mybranch,dc=example,dc=com" rootpw "admin" overlay translucent uri "ldap://172.27.27.37" idassert-bind bindmethod=simple binddn="cn=admin,dc=example,dc=com" credentials="admin" mode=none idassert-authzFrom "dn.subtree:dc=example,dc=com" # Config end This works perfectly fine for searches where the entry is remote. Changing entries works fine well, with the results stored in the local translucent db. Adding new entries works, but they are not returned on searches. I check this by running slapcat. So, it boils down to these questions: * Does Howard's patch not fully implement the searching? * Is my config wrong? * There is probably other ways to do this, perhaps using a meta ldap backend. With multiple backends, what determines where writes go? Probably where the object is based, but what about new objects? * Is it cleaner to keep my "branch" of the tree under a subdomain, such as mybranch.example.com using rwm, or should they all be on the main example.com domain? * Examples for exotic overlays are very scarce. It would be very helpful if anyone could provide their configuration file. sven

1 0

Modifying every entry in an LDAP address book
by Carr, Chris 29 Jul '08

29 Jul '08

Hi All, Apologies if this is a stupid question, but I can't find the answer via Google. I need to make the same modification to every entry in my address book. Can I do this with a single ldapmodify command? If so, what is the syntax for the mod file? I'm assuming something like this: dn: ?? changetype: modify add: objectClass objectClass: evolutionPerson ... but I can't think what the DN would be, since I don't really understand how wildcards work in DNs, if at all. The entries I want to modify are all in ou=addressbook,dc=mydomain, but all have different cns. Second, some of the entries already have that object class - will this cause a problem? Will ldapmodify simply ignore those entries, or create a duplicate identical objectClass, or crash? Many thanks in advance, CC This e-mail may contain information which is confidential, legally privileged and/or copyright protected. This e-mail is intended for the addressee only. If you receive this in error, please contact the sender and delete the material from your computer

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openldap-technical