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Top Forums UNIX for Advanced & Expert Users Unable to authenticate in LDAP RHEL 6.0 Post 302956657 by frank_rizzo on Thursday 1st of October 2015 05:02:27 PM
Old 10-01-2015
Are you using sssd? How are you connecting to the servers, ssh? Does LDAP authentication work on any client machine? Do all users fail or some? Have you checked /var/log/secure on the failing machine? If so paste the relevant entries of the logs. Do you have logging enabled on the LDAP server?

Last edited by frank_rizzo; 10-01-2015 at 06:09 PM.. Reason: add questions
 

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LDAP_CONNECT(3) 							 1							   LDAP_CONNECT(3)

ldap_connect - Connect to an LDAP server

SYNOPSIS
resource ldap_connect NULL ([string $hostname], [int $port = 389]) DESCRIPTION
Establishes a connection to a LDAP server on a specified $hostname and $port. PARAMETERS
o $hostname - If you are using OpenLDAP 2.x.x you can specify a URL instead of the hostname. To use LDAP with SSL, compile OpenLDAP 2.x.x with SSL support, configure PHP with SSL, and set this parameter as ldaps://hostname/. o $port - The port to connect to. Not used when using URLs. RETURN VALUES
Returns a positive LDAP link identifier on success, or FALSE on error. When OpenLDAP 2.x.x is used, ldap_connect(3) will always return a resource as it does not actually connect but just initializes the connecting parameters. The actual connect happens with the next calls to ldap_* funcs, usually with ldap_bind(3). If no arguments are specified then the link identifier of the already opened link will be returned. EXAMPLES
Example #1 Example of connecting to LDAP server. <?php // LDAP variables $ldaphost = "ldap.example.com"; // your ldap servers $ldapport = 389; // your ldap server's port number // Connecting to LDAP $ldapconn = ldap_connect($ldaphost, $ldapport) or die("Could not connect to $ldaphost"); ?> Example #2 Example of connecting securely to LDAP server. <?php // make sure your host is the correct one // that you issued your secure certificate to $ldaphost = "ldaps://ldap.example.com/"; // Connecting to LDAP $ldapconn = ldap_connect($ldaphost) or die("Could not connect to {$ldaphost}"); ?> SEE ALSO
ldap_bind(3). PHP Documentation Group LDAP_CONNECT(3)
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