CentOS 5 :: Openldap Client Won't Bind To Server

Jul 2, 2011

I can't get the client server to authenticate to the openldap server. I can authenticate on the server itself though. I can su to, login and shh into the openldap server and become a ldap user. I just can't become an ldap user on the client.I didn't setup TLS/SSL. I can do that after I have it working. I'm using hashed passwords though. I don't have replication setup. I'm am tying to setup the most basic openldap environment then build from there. I have read the openldap section in the admin guide.

My setup at home.

Openldap server � light.deathnote.net -- 10.0.1.21
client server � vm-centos01.deathnote.net � 10.0.1.7 -- VM on virtualbox
Virtualbox host � L (OS MAC) � 10.0.1.2
router (apple airport extreme) / default gatway � 10.0.1.1

All computer can reach the internet and ping each other. When I installed centos I disabled SELinux.I used these guids to setup my openldap.

[URL]

Below I have included some output from the files I'm using with openldap.

[root@vm-centos01 ~]# tail /var/log/messages
Jul 2 09:25:33 vm-centos01 xfs: nss_ldap: reconnecting to LDAP server (sleeping 16 seconds)...
Jul 2 09:25:49 vm-centos01 xfs: nss_ldap: failed to bind to LDAP server ldap://light.deathnote.net: Can't contact LDAP server
Jul 2 09:25:49 vm-centos01 xfs: nss_ldap: failed to bind to LDAP server ldap://10.0.1.21/: Can't contact LDAP server

[code]....

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CentOS 5 Networking :: Bind Server Not Responding To Client Queries

Mar 4, 2011

I am bit new to Linux and have setup caching-only name server with Centos 5.5. when i do dig server, it provide resolutions. but when i use the server IP as DNS on my windows client, it says, "connection refused" on the NSlookup output. (IP table didn't enable) My server Ip is 192.168.1.253 and bellow is the configuration of "/var/named/chroot/etc/named.conf"

options {
listen-on port 53 { 127.0.0.1; 192.168.1.253; };
listen-on-v6 port 53 { ::1; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt"; .....

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Server :: Samba Openldap PDC Cannot Change Password From Windows XP Client

Jul 24, 2010

I finished setup Samba PDC with Openldap backend. I can joint Winxp client to domain but can not change pass by press Ctrl + Alt + Delete and choose Change password button

This is my conf.
I used
samba3x-3.3.8
openldap 2.3.43
slapd.access.conf

Code:
access to attrs=userPassword,shadowLastChange,sambaNTPassword,sambaLMPassword
by dn="cn=Manager,dc=microhdesk,dc=net" write
by anonymous auth
by self write
by * none

[Code]....

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Server :: OPENLDAP Client Integration With Server

Aug 27, 2010

I've configured OPENLDAP server on the CentOs 5.3. Well everything is working fine .All the uses have been added to the database.database is bdb in ldap configuration.Now client machine is on windows xp. how to integrate Windows Xp with the LDAP server for authentication.

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Server :: Openldap Client Fails To Connect Ldap Server 'ldap_bind - Can't Contact LDAP Server

Sep 28, 2010

Just installed openldap server on a VM CentOS called 'ldapsrv', it works fine, ldapsearch returns all ldap information.

Installed openldap client on another VM CentOS called 'ldapclient1', configured it with most basic configuration, no ssl/tls etc. but ldapsearch returns error:

ldapsrv is pingable:

Some outputs:

PHP Code:

PHP Code:

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Server :: Client Computer Not Dig Bind Server?

Jul 28, 2010

I have configureed Bind in a Linux box. Well pc1 i.e "pc1.mydomain.com" is my client machine and main server is the computer in which bind is install.The client computer pc1 and the main server (Bind server) i.e FQDN "mainserver.mydomain.com "are on the same network.from client machine i can't resolve the name to IP address as my server do successfully with client. The /etc/resolv.conf file in my bind server is as

Code:
search mydomain.com
nameserver 192.168.1.254
The named.config it main configuration is as below
Code:
zone "mydomain.com" IN {

[Code]...

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Nov 23, 2009

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CentOS 5 Server :: Openldap Security SSL ?

Feb 2, 2011

I configured OpenLdap and now I want to configure it using TLS-SSL

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Openldap Server configuration:

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CentOS 5 Server :: Openldap Acl Not Working As Expected?

Jun 22, 2009

CentOS 5.2. Openldap server-2.3.27-8.el5_2.4 I'm trying to get the server to do two things. One is allow authentication--that is, if a client is configured to use openldap for authentication, it should be able to access this server.

In other words, on machine_2, a client, doing getent passwd (as a quick test) will show the users in the openldap database. The more or less out of the box configuration works for this. However, as soon as I start trying to add ACLs, it stops working. For example, I want to restrict access to an address book which is also in the database. So I have

access to base.dn(changing base to subtree makes no difference) "ou=addressbook,dc=example, dc=com"
by users read by anonymous auth Now, even though this is just the address book, after that, an ldap client can no longer get the names of users in ou=People, and using the ldap server for authentication doesn't work.

I don't understand what I'm missing. ACLs are supposed to work first match wins. *IF* I add under that, access to * by * read, it will work, but the address book can then be accessed without a bind dn.

I am not sure what I'm overlooking. If I put in any sort of access control, the only way that clients can continue to use the server for authentication is adding that access to * (or to dc=example,dc=com"), by * read. I tried using access to ou=Group and ou=Peoplle by * read, thinking that would allow the clients to authenticate, but that doesn't work either, The idea is to allow any machine configured as a client to use it for authentication, but also to restrict viewing the address book only to those with a proper bind dn name.

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Fedora :: Remove Openldap From Centos Home-server?

Aug 17, 2010

I would like to remove openldap from my Centos home-server..

Centos offers me:

Quote:

Removing:
openldap i386 2.3.43-12.el5_5.2 installed 592 k
openldap x86_64 2.3.43-12.el5_5.2 installed 598 k

[Code]...

..obviously I'll not remove openldap by this operation.. but my question is: there is another way to remove a single package with yum without "consequences"?

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Apr 30, 2011

Friends is there some way to authenticate Microsoft windows users from openldap running on CentOS. I will be very thankful if you provide me step by step procedure.

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Nov 15, 2010

There are several parts of problems in my question.

1. Install openLDAP and authenticate clients

2. Simple way to authenticate Ubuntu clients (just like Windows simple domain model, but Linux)

Part 1 What I have done: I have been working on openLDAP for the past 4 weeks. There is a lot of information on LDAP and I have read a lot of it There are several guides out there for openLDAP installation on Ubuntu, and I have tried many of them, and reinstalled the server between tests.

[Code]...

Part 2 Simple way to authenticate Ubuntu clients (just like Windows simple domain model, but Linux)

I have tried to find something similar to Windows client login, but haven't found anything that works. I just need to be pointed to somewhere to read about the authentication model in Linux. I can work out my from there. It must be something very simple I am missing, because when I read som echapters in The Ubunutu Bible, I can't find anything on it.

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Jul 29, 2011

i am trying to run bind in centos 6 and bind keeps giving me errors every time i check all of the configurations. the named.conf file works fine but the zone files keep giving me errors heres the contents of my named.conf file

Code:
options {
directory "/var/named";
listen-on port 53 { any; };
allow-query { any; };

[Code]....

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Jul 15, 2011

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Debian Configuration :: OpenLDAP Client Login Failure

Feb 3, 2016

I'm testing to log in using openldap authentication on jessie by following article from [URL] ..... and when I try to log in from ldap client (another debian 8 VM), it failed with

Code: Select allFeb  3 09:25:33 clt nscd: nss_ldap: could not connect to any LDAP server as cn=admin,dc=test,dc=lab - Can't contact LDAP server
Feb  3 09:25:33 clt nscd: nss_ldap: failed to bind to LDAP server ldap:///192.168.191.120: Can't contact LDAP server
Feb  3 09:25:33 clt nscd: nss_ldap: reconnecting to LDAP server...
Feb  3 09:25:33 clt nscd: nss_ldap: could not connect to any LDAP server as cn=admin,dc=test,dc=lab - Can't contact LDAP server

[Code] ....

test result from client with ldapsearch

Code: Select all# ldapsearch -h 192.168.191.120 -D cn=admin,dc=test,dc=lab -W -x -b 'dc=test,dc=lab' 'userName=*'
Enter LDAP Password:
# extended LDIF
#
# LDAPv3
# base <dc=test,dc=lab> with scope subtree
# filter: userName=*

[Code] .....

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I don't know why, perhaps kernel works week so i decided to do the following :

But the problem didn't solved

I previously had Freebsd with same version of bind and same configuration and everything worked fine.

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[root@server1 named]# service named restart
Stopping named: [ OK ]
Starting named:

[code]....

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Here's the entire output:

[root@ns etc]# service named status
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query logging is OFF
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Name
The first CentOS linux1.starline.ca
The second CentOS centos.starline.ca
The third XP xp2.starline.ca[code].....

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30-Dec-2010 17:52:03.226 client x.x.x.x#53593: view internal: query: paypal.com.cms.local IN A +
30-Dec-2010 17:52:03.227 client x.x.x.x#53594: view internal: query: paypal.com.cms.local IN AAAA +
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[code]....

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(1) linux boxes resolve bare host names & FQDNs just fine using nslookup & ping, but not dig. dig gives error:

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_5.3 <<>> angus
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 15241

[Code]....

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[Code]...

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Dec 14, 2009

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Bind Error: Invalid credentials
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Using openldap tools I strike exactly the same problem:
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SASL/GSSAPI authentication started
ldap_sasl_interactive_bind_s: Invalid credentials (49)
additional info: SASL(-14): authorization failure:

I believe I have set up the mapping correctly:
dn: cn=MyMapping,cn=mapping,cn=sasl,cn=config
objectClass: top
objectClass: nsSaslMapping
cn: MyMapping
nsSaslMapRegexString: ^(.+)@MYCOMPANY.COM
nsSaslMapBaseDNTemplate: ou=mydept,dc=mycompany
nsSaslMapFilterTemplate: (uid=1)

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