Error Opening Connection To Nslcd
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Mailing lists Security LDAP authentication with nss-pam-ldapd This document describes how users and groups that are defined in an LDAP server can log in to your system. Whether a user is known to the error opening connection to nslcd connection refused system is managed through an NSS module and the authentication is done pam_ldap restart with a PAM module. If you are using Debian you should be able to skip these steps, install the libnss-ldapd
What Is Nslcd
and libpam-ldapd packages, answer the configuration questions and have it just work. See the Debian wiki for more information. Other distributors may also provide helper tools for configuring nss-pam-ldapd. This guide covers
Nslcd Configuration
the most common configurations but nss-pam-ldapd also supports TLS encryption, authenticating to the LDAP server using Kerberos, using Active Directory and much more. See the sample configuration, manual pages and included README for more details. Before you begin This guide assumes that you have an LDAP server set up and working and have the relevant data available in there (searchable with ldapsearch). You need the nslcd.conf example following information: ldap server URI (e.g. ldap://198.51.100.389) ldap server search base (e.g. dc=example,dc=com) To import existing data into LDAP look into MigrationTools. Step 1: Installing nss-pam-ldapd If your distribution comes with a packaged version of nss-pam-ldapd you should probably use that instead of compiling by hand. Compiling from source follows the usual procedure. You can pass --help to configure for more options. % ./configure % make % make install Create a dedicated user and group for running nslcd and configure those in /etc/nslcd.conf (uid and gid options). Also set up an init script to start nslcd at boot. Step 2: Configuration /etc/nslcd.conf The source package includes an annotated template configuration file for the nslcd daemon. Also, a nslcd.conf(5) manual page is available that lists all the options. At the very least the uri (the location of the LDAP server) option should be set. It is recommended to also set the base option to the LDAP search base of the server. Set the uid and gid options to the created user and group. For other options the defaults should be fine in most set-ups. A minimal configuration would contain: uri ldap://198.51.100.389 base dc=exampl
Tue, 16 Feb 2016 09:12:02 UTC Severity: important Found in version nss-pam-ldapd/0.9.4-3 Fixed in version nss-pam-ldapd/0.9.6-4 Done: Arthur de Jong
Nslcd Cache
as an mbox folder, status mbox, maintainer mbox Report forwarded to debian-bugs-dist@lists.debian.org, Arthur de nslcd.conf active directory Jong
[x] Format For Printing -XML -Clone This Bug -Last Comment First Last https://bugzilla.redhat.com/show_bug.cgi?id=1182183 Prev Next This bug is not in your last https://wiki.samba.org/index.php/Nslcd search results. Bug1182183 - pam_sss(sshd:auth): authentication failure with user from AD Summary: pam_sss(sshd:auth): authentication failure with user from AD Status: CLOSED ERRATA Aliases: None Product: Red Hat Enterprise Linux 7 Classification: Red Hat Component: sssd (Show other bugs) Sub Component: error opening --- Version: 7.1 Hardware: Unspecified Unspecified Priority medium Severity medium TargetMilestone: rc TargetRelease: --- Assigned To: Sumit Bose QA Contact: Kaushik Banerjee Docs Contact: URL: Whiteboard: Keywords: Regression, Reopened Depends On: Blocks: Show dependency tree /graph Reported: 2015-01-14 09:52 EST by David Spurek Modified: 2015-03-05 05:35 EST (History) CC error opening connection List: 13 users (show) dpal ebenes grajaiya jgalipea jhrozek lslebodn mkosek mzidek nkarandi pbrezina pkis preichl sbose See Also: Fixed In Version: sssd-1.12.2-43.el7 Doc Type: Bug Fix Doc Text: Story Points: --- Clone Of: Environment: Last Closed: 2015-03-05 05:35:15 EST Type: Bug Regression: --- Mount Type: --- Documentation: --- CRM: Verified Versions: Category: --- oVirt Team: --- RHEL 7.3 requirements from Atomic Host: Cloudforms Team: --- Attachments (Terms of Use) Add an attachment (proposed patch, testcase, etc.) Groups: None (edit) Description David Spurek 2015-01-14 09:52:03 EST Description of problem: pam_sss(sshd:auth): authentication failure with user from AD. sssd configuration was generated by realmd getent passwd works fine: getent passwd Amy@ad.baseos.qe' amy@ad.baseos.qe:*:381001103:381000513:Amy:/home/ad.baseos.qe/amy:/bin/bash ssh Amy@ad.baseos.qe@localhost Amy@ad.baseos.qe@localhost's password: Permission denied, please try again. part of log from /var/log/secure Jan 14 09:39:06 ibm-p8-kvm-lt-guest-10 sshd[621]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=localhost user=Amy@ad.baseos.qe Jan 14 09:39:12 ibm-p8-kvm-lt-guest-10 sshd[621]: pam_sss(sshd:auth): authentication failure; logname= u
Testing 4 Configuring PAM (pam_ldap) 4.1 Method 1: Connecting to AD via Bind DN and password 4.2 Testing Advantages and disadvantages of nslcd Because people may find that some of the disadvantages are advantages or vice versa in their environment, we won't classify here. Fast and easy to configure. Requires central storage of posix data (UID/GID, home directory, shell, etc.) in AD. See Administer Unix Attributes in Active Directory. UIDs/GIDs are the same on every server, because of the central storage inside the directory. Doesn't require the machine to be joined to the domain. Only a LDAP and Kerberos (if used) connection is used. Requires nslcd, Cyrus SASL GSSAPI and pam_ldap installed on your system. Resolving of nested groups is supported in nslcd 0.9.0 and later (nss_nested_groups yes). Installation Most distributions ship nss-pam-ldapd, which contains nslcd, in their default installation. If you intend to use Kerberos, you are additionally required to install Cyrus SASL with GSSAPI support. Depending on the version of nlscd you use, not all required Kerberos features may be supported. See the manpage of nslcd.conf for the supported options. If you want to authenticate local *nix services on your server against AD, you additionally require pam_ldap. Configuring nslcd Method 1: Connecting to AD via Bind DN and password The following basic example of an nslcd.conf let the daemon retrieve it's information by binding via an AD account. Connections with this setup will be unencrypted, except you have setup LDAP over SSL on your DC and change the following example nslcd.conf accordingly! Create a new user account in your AD, nslcd will use to bind via LDAP and retrieve it's information. Make sure, that you configure this account with the „Password never expires“ option! It's recommented also to set „User cannot change password“. Remember the DN (distinguished name) of the new account. The following example uses the DN „cn=ldap-connect,cn=Users,dc=SAMDOM,dc=example,dc=com“. Currently not all required posix information could be retrieved via LDAP (Bug report #9788), because of incorrect directory ACLs. As a workaround, simply add the following to your smb.conf on the DC, nslcd is connect