Server :: Open LDAP Authentication Probs
Feb 16, 2011
I'm having a pretty weird problem, and really have no idea where to begin in tracing and fixing it. But here goes.I'm running Ubuntu 10.10 on 2 machines, and have installed OpenLDAP as per the guide https://help.ubuntu.com/10.10/server...ap-server.html it all seemed to be going well having it installed and running on Server A, including authentication. So a few days later I decided to setup server B to be a slave replica. Which after a little bit of fiddling seems to working and keeping the records in sync.
Then I did an apt-get upgrade on server A. then my problem started.Basically getent passwd, only returns one entry from the LDAP and so does getent group.But a search of LDAP returns everything that's there.I've been comparing the config files between Server A and Server A for PAM etc, and everything is the same.but if I change ldap.conf on server A to point the uri ldap://server B/ and rerun getent passwd it returns all the users and getent group returns all the groups.I've compared the LDAP entries between Server A and Server B and they're staying in sync.It looks like it's more to do with ldap than the auth config if just changing the server fixes it, but as server A is the master LDAP server I'm really at a loss.
If getent was only returning local users it'd be something, but it's returning local + 1 LDAP user or 1 group. Which just seems weird.Any help would be greatly appreciated. I'm sure posting some logs would be helpful, but I have no idea which so if someone can let me know what extra info would be more helpful I'll post it back asap.
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Apr 5, 2010
i have successful secure ldap replication but i could not make ldap client to direct its authentication to slave ldap
here is my config file on ldap client (i am not sure if it is the right place though)
ip : 192.168.1.183 is master ldap
ip : 192.168.1.185 is slave ldap
pico /etc/ldap/ldap.conf
#
# LDAP Defaults
code....
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May 25, 2011
I am using RackMonkey to map out my lab. Unfortunately, due to RM limitations, every user who accesses the site has write access UNLESS they are logged in as a user named "guest". I currently have Apache allowing only the users (sysadmins) in an LDAP group access to RM, but I would like to allow read-only access for other users as well.I found mod_authn_anon, but I am having trouble combining the two authentication methods. I am using Apache 2.2.18 (compiled myself) on SLES 11.1.
This is the common part:
Code:
AuthType Basic
AuthBasicProvider ldap anon
Order allow,deny
Allow from all
This part by itself works for the LDAP authentication:
Code:
AuthName "System Admins"
AuthLDAPURL "ldaps://example.com/ou=ldap,o=example.com?mail" SSL
Require ldap-group cn=SysAdmins,ou=memberlist,ou=groups,o=example.com
This part works by itself for guest access:
Code:
Anonymous guest
Anonymous_VerifyEmail Off
Anonymous_MustGiveEmail Off
Anonymous_LogEmail on
Require valid-user
But if I have both of the previous blocks enabled at once, then guest access does not work. If I throw in a "Satisfy any", then I am not prompted for a username at all. How can I allow access to this LDAP group and to a user named "guest", but not allow all valid LDAP users to log in?
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Dec 9, 2010
I installed Nconf software on a Debian server.I am trying to configure Nconf Authentication with LDAP.I edited nconf's authentication.php file accordingly and I installed php5-ldap package.When i enter user-name and password in Nconf's login screen.
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Feb 9, 2011
I want to ask how many applications can we use with LDAP authentication
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Nov 12, 2010
I have Centos ( and Postfix+ldap+dovecot ) TLS works with Postfix and LDAP. When I open evolution mail client I can browse ldap tree and search for users, send-receive mails ...all fine
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Jul 25, 2010
Install and configure Samba as a primary domain controller with LDAP on Linux.i setup it step by step following article without error until step 10.i want to join windows client when press user name and password for domain then display message:The following error occurred attempting to join the domain BIGTIME:
The network path was not found.
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Sep 26, 2010
I want to Configure Linux LDAP Server for user authentication when my users want to connect to the internet.Also i don't want the user to get the home directory on server. i configured ldap server and ldap client without PAM & SASL.and now with perl i can search in ldap for my client's username & password in ldap.
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Jan 10, 2011
I started a new job and they use LDAP here. I built a new RHEL 5.5 server and configured LDAP. Usernames are recognized but the password is not. I can chown a file to a user name but when I try to login as the user it won't accept the password.I know the password is correct because I can login to any of the old boxes and it accepts the password. I ran authconfig-tui to tell my RHEL box to authenticate to ldap.
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Oct 24, 2010
Making a Samba Server with LDAP authentication. Will post as I go along. Found these sources, anything/hiccups I should know before jumping in? Figure would follow the official documentation then check the others for comparative errors.
https://help.ubuntu.com/10.04/server...ap-server.html
https://help.ubuntu.com/10.04/server...amba-ldap.html
http://tuxnetworks.blogspot.com/2010...cid-short.html
Also Do other computers that want access to server also need samba installed (or just client)?
The server is 10.04 and my proposed client is 10.10, does this create problems?
Do I need to use ACL? I see them only in certain places.
Using xfce after Ubuntu install, not sure if this matters.
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Jan 18, 2010
how to make a new Ubuntu 9.10 box use our LDAP/Samba server for user authentication. Our Red Hat and Windows machines all use it just fine. I've been trying to use the auth-client-config and libnss-ldap packages for this purpose, but I must be missing something. I'm pretty green with LDAP, so this is my first time diving in... Is there a good How-To or step-by-step read on this? All of my searches lead me to setting up Ubuntu as the server, and that isn't what I want. I've also tried the steps listed in [URL] for the LDAP Authentication section.
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Jan 29, 2010
i want to configure an Open LDAP server in Ubuntu....and also want it to connect to its clients, i have two machines for testing,one for client & one for server, i followed the tutorials on ubuntu documentation,but did not succeed in making either the client or the server,
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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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May 21, 2010
I've setup an openldap server, and am trying to add .ldif files to the database.
I am constantly getting the following error, no matter what I do:
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May 31, 2010
we have a weird problem with our opensuse 11.2 server installation.
We want to set up a LDAP Server using the Yast-LDAP Server configuriation tool.
This indeed already worked weeks ago until....this week.
Maybe some updates??!
I do not know what happend exactly. The server just does not want to start again and throws following error:
Starting ldap-serverstartproc: exit status of parent of /usr/lib/openldap/slapd: 1 failed
This happend after a little check of the configuration, but without a change, with Yast. Google delivered only "reinstall your box"-answers.
So.. i did that. And now the "mystical" part: The SAME ERROR occurs with a fresh vanilla system with a brand new and simple configuration (certificats, database, pw...the first Yast config dialog...). I did not change the way i set it up.
I remember, when i did this the first time with 11.2 on that machine, when no problems occured...everything was running out of the box (except the "use commen server certificate" option...).
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Jan 24, 2011
I have created a CA on my server then created a server certificate under that then exported it as a common server certificate.I have then gone to my LDAP server and enabled TLS and told it to use the common server certificate.Now on my client I have enabled LDAP TLS/SSL and it's asking me to download a certificate ... from where ? Do I export the certificate to a file and put it on a web server.If so what format as the export offers loads.
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Jun 23, 2010
I am trying to allow my freshly installed ubuntu 10.04 to authenticate with ldap. I did follow the doc https://help.ubuntu.com/community/LD...Authentication and some other hints with no success.My needs is just to use an ldap existing server (active directory in my site, but i wish to use it via ldap, not via samba/ winbind) to validate users on services using pam modules.After the package installation the command getent passwd retrieve just local users and I don't understand if my ubuntu client is not querying the server or the server reply with some message.
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Sep 16, 2010
One I cant figure out is a problem of authentication. I'm using open ldap server and try to authenticate a groupware (simple groupware) against it. As it fails, I tested with a ldap client to understand things better. Using GQ ldap client, I 'm able to browse my ldap tree successfully and to search some args from the base DN i specified. but when entering the exact uid as a search string iI got no answer whereas searching the cn returns the correct entry (and display its related entry including the uid I can't find ..) Here is the only thing I can trace in logs (syslog) when trying to seach firstname.lastname (= uid)
[Code]....
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Jun 29, 2010
I'm trying to get LDAP working with 389 Directory Server on Fedora 13. I have the server all ready to go, and I can query it with the 389 console. But when I tried to move on to the next step, user authentication trough LDAP, it just won't work I followed the PAM Howto, but the given authconfig command doesn't work. If I manually add a user with the 389 console, I can't login with it.Since I had X11 forwarding working over SSH, I tried authconfig-gtk. I setup a SSL LDAP connection for this to work, but it still didn't work. I did have this working on my (now crashed ) Fedora 12 VM.
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Dec 28, 2009
I've added a new machine (desktop used by many users) to a network that uses LDAP (pam_ldap) for authentication. Can anyone post relevant configs to limit users by a groupOfNames? I've googled extensively and have found some partial comments, but no complete config examples or howto's.
The issue is as follows:
All users have one primary GID in their posixAccount entries, which is used to control access to the existing machines. So it's not really possible to change this. Now, I need to limit access to this new machine to a specific subset of users, all members of a specific groupOfNames. I can't seem to get pam_ldap to use a groupOfNames instead of a posixGroup.
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Jan 20, 2010
We have an LDAP server (OpenDirectory on Snow Leopard Server--OpenLDAP essentially) and I am trying to configure our slackware hosts to use that LDAP server as the authentication mechanism instead of NIS/YP as they currently do.How do I change it, and is it just as simple as changing /etc/nsswitch.conf?
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May 7, 2011
On this moment i configure a testenvironment with 1 Microsoft active directory server and 1 Opensuse 11 samba filesharing server. But i have a issue. The samba server is add to the domain and the servers can communicate with eachother. I can login to the domain on the samba server and the LDAP settings tab on yast2 samba configuration tool tell me that samba and the MS LDAP server can communicate with eachother. I can see the shares on the samba server but i can't autenticate myself. When i whant to logon than see i always "domain: domainname.local" and "access denied". My question is now how can i give the MS administrator account rights to view the shares and configure the rights for the other users.Samba config file
PHP Code:
[global]
workgroup = WIN-FVJBNQIJE9O@WOENSDRECHT.LOCAL
[code]....
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Jun 18, 2010
I've just installed Ubuntu Server for the first time with the goal as setting it up as a proxy server for our Apple computers here since I can get neither ISA of OS X Server's firewall to play properly. So far I have the machine authenticating against our OS X OpenLDAP server and multiple NIC's setup ready to be connected to the outside world. My question is does anyone have a preference on what proxy I should be using? So far my search efforts seem to of turned up Squid Proxy as a favorite among Ubuntu users but I can't seem to work out how to get it authenticating against my OpenLDAP server.
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Mar 16, 2011
i am taking another stab at this. The last time i attempted it, it seemed like everyone had a different way to do it, but nobody could give me an answer on how to do it...
I currently have a Domain Controller Running sme server and a domain controller, using ldap as a backend. I have two file servers runing ubuntu 10.04. My overall goal is to have it so when i create a username on the domain controller, it is then automatically copied over to the fileservers. This way everyone will have their own username and password to access the fileservers and ill be able to track what people do on the fileservers.
The next necessity is for me to be able to apply permissions to the folders on the fileserver based on the users that are created on the domain controller.
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Aug 26, 2011
LDAP Authentication for Web Access I am trying to build a LDAP server to allow access to the wireless network in conjunction with Meraki wireless access points. I am using Ubuntu 10.10 and trying to install OpenLDAP from their documentation but I keep running into the error "configure: error: MozNSS not found - please specify the location to the NSPR and NSS header files in CPPFLAGS and the location to the NSPR and NSS libraries in LDFLAGS (if not in the system location)" I have OpenSSL installed but I also got these when I ran ./configure
checking openssl/ssl.h usability... no
checking openssl/ssl.h presence... no
checking for openssl/ssl.h... no
checking gnutls/gnutls.h usability... no
[code]....
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Mar 4, 2010
I have installed openldap version 2.4.21 and configured with the help of the site [URL] and the LDAP address book is working fine. But I need to create an LDAP directory such that it will contain the user name and passwords for the users and when user is logging to any application he is authenticated from LDAP directory
e.g Users who need to browse the internet need to authenticate with username and password for access from the firewall (Juniper Netscreen) and similarly other applications like oracle ERP such that they will have only 1 username and password stored in LDAP directory and all other applications will search for the user name and password for authentication.
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Jun 3, 2011
I Configured LDAP Server on ubuntu Server 10.04 ,(using url ldap) and Client also it's working fine. After that I changed to ssl encryption and create certificate in server side. Now it's not authenticating from server it's shows Incorrect Password, but I can login though terminal if I am root user ,then it not ask any password it's logon to ldap user. After I changed to ldap server to ssl encryption and made one changes in client side uri ldaps://ip-address/ (/etc/ldap.conf).
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May 15, 2011
I have more than 150 Linux desktop computer in my office IT setup.
I want to configure LDAP centralize network authentication for all the desktop computer.
My requirement is below mentioned.
The LDAP server will only authenticate the desktop computer at the log-in time when the user start computer.
The home directory of all the user should be create in their desktop local computer not in the LDAP server.
And flexibility of user log-in for every desktop. (any user can log-in any computer with his/her username and password)and the home directory will create automatically in the local desktop computer automatically the moment any user will log-in to any computer in the network and the LDAP server will authenticate for desktop-network log-in in to the computer.
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Nov 4, 2010
I have an issue with Apache2 and ldap authentication. Here are the specs:
Linux 2.6.32-24-generic i686 GNU/Linux Ubuntu 10.04.1 LTS
Apache/2.2.14 (Ubuntu) PHP/5.3.2-1ubuntu4.5 with Suhosin-Patch configured
I have installed our site onto a newer server as we were previously running SLES 9.3. The site has installed correctly, however, It seems to be serving the pages a hell of a lot slower than SLES (eventhough the specs etc are much improved). The main problem seems to be with Ldap - sometimes taking 2 or 3 minutes before authenticating/serving the user - and sometimes one minute it works, another minute it doesn't! We know it's a problem specific to this Ubuntu machine, as the older server has no issues with ldap whatsoever. Also, sometimes the ldap authentication fails all together with a timeout, resulting in a 500 status code. I'm not sure whether this a problem with the apache config, the network settings or the server setup. We know ldap itself is fine.
Here's the /etc/apache2/sites-available/default config for ldap. Are these directives correct? (I know a lot of changes were made between apache2 and apache2.2 that may affect this config):
Code:
ScriptAlias /home/ "/var/www/cgi-bin/"
<Directory "/var/www/cgi-bin/">
AuthType Basic
AuthzLDAPAuthoritative On
AuthBasicProvider ldap
AuthName "Active Directory Authentication Required."
AuthLDAPURL "ldap://x.x.x.x:3268/DC=xxxxxx,DC=com?userPrincipalName?sub?(objectClass=*)" NONE
AuthLDAPBindDN "xxxxx@xxxx.com" AuthLDAPBindPassword xxxxxxxx
require valid-user Options +ExecCGI -Includes AllowOverride None
</Directory>
Here's some examples of some of the log messages we have been receiving:
1. This one occurs upto ten times in a row when the client is being authenticated:
Code:
[Thu Nov 04 12:47:19 2010] [debug] mod_authnz_ldap.c(377): [client x.x.x.x] [2892] auth_ldap authenticate: using URL ldap://x.x.x.x:3268/DC=xxxxxxx,DC=com?userPrincipalName?sub?(objectClass=*), referer: http://x.x.x.x/home/page
2. This is output when the authentication works:
Code:
[debug] mod_authnz_ldap.c(474): [client x.x.x.x] [2734] auth_ldap authenticate: accepting xxxxx@xxxx.xxxxx.com, referer: http://x.x.x.x/home/page
3. And this one is always output after the error above. This one is more interesting. What does this mean exactly? And why does it say 'declining to authorise' directly after saying 'accepting user@domain.com'? Surely this makes no sense:
Code:
[debug] mod_authnz_ldap.c(546): [client x.x.x.x] [2939] auth_ldap authorise: declining to authorise (no ldap requirements), referer: http://x.x.x.x/home/page
4. This one is output when the authentication attempt times out (after 10 outputs of error number 1):
Code:
[warn] [client x.x.x.x] [3165] auth_ldap authenticate: user xxxx@xxx.xxxxx.com authentication failed; URI /home/page [LDAP: ldap_simple_bind_s() failed][Can't contact LDAP server], referer: http://x.x.x.x/home/page
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Jun 22, 2010
I have a centos 5 system with openldap configured. I need openldap for simple user authentication. ie.. to be able to use it for authenticating it from remote applications and systems like mail clients...etc.
I was able to succefully install and configure openldap and ran a slaptest to verify the slapd.conf file for errors and found none. so now all i want to do is to add username and passwords to the ldap database.
iam just not sure what all objectClasses i need to use for Attributes uid and userPassword and what exactly should be the ldif file syntax for the above entries. I tried various sources but i do either get errors while adding or after adding do get errors trying to access it.
above all, iam able to access the ldap server from my phpldapadmin only as a anonymous user and not as a root user that i added as a first entry.
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