Ldap_bind Unable To Bind To Server Protocol Error
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3. If you do not, you will receive a warning and fail to bind, such as:ldap_bind(): Unable to bind to server: Protocol errorIn order to avoid this, make this call:ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3);
?>Where $ds is the result returned by ldap_connect(...); Posted by
Ldap Bind Php
Charith Bandara Mahawatta at 12:36 AM 20 comments: PRASA said... Thanks....It was really help full to me......... ldap_bind(): unable to bind to server: invalid credentials April 25, 2012 at 12:21 AM Anonymous said... Thank you very much !You save my day :) July 28, 2013 at 10:06 PM Anonymous php ldap login said... a very big thank you Sir, this really helps me .... August 13, 2013 at 9:27 PM Mohammad Nurhadi said... thanks a lot sir.. :)gode bless you.. September 11, 2013 at 9:28 AM Anonymous said... Helped me a lot, thanks
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:D November 5, 2013 at 6:20 AM SHRINIVAS MESE said... thank You so much sir.. :)it was helpfull for me. December 16, 2013 at 8:05 PM Anonymous said... THANKS SO MUCH, I WAS LOOKING FOR THIS SOLUTION!!!!! May 1, 2014 at 3:31 PM SARZ said... Waoo! I was struck in this warning for a long time, BIG Thanks! November 18, 2014 at 11:47 PM SARZ said... Waoo! I was struck in this warning for a long time, BIG Thanks! November 18,
Ldap_bind(): Unable To Bind To Server: Invalid Dn Syntax
2014 at 11:48 PM Anonymous said... It's very kind of you to public this.Thanks so much. December 7, 2014 at 8:12 PM Anonymous said... thanks December 30, 2014 at 6:46 PM Anonymous said... Much obliged - saved me a good half hour of trying to figure out what was wrong. February 15, 2015 at 3:11 PM Anonymous said... Thanks man !I was having this problem and just adding the line worked.Thanks a lot ! July 3, 2015 at 12:27 PM Anonymous said... Thanks a lot man !That worked great ! July 3, 2015 at 12:28 PM Anonymous said... Thanks! Very useful!! December 10, 2015 at 4:54 AM Mario H. said... Great, thank you very much. I was looking for hours and hours... :) April 1, 2016 at 2:50 AM Lokesh said... Thanks you have solved my problem May 18, 2016 at 11:56 PM Anonymous said... Merci Charith! <3 June 3, 2016 at 7:49 AM Claudio Castro said... Thank you so much!That was the code line I was missing. June 16, 2016 at 6:56 AM Lê Trường Giang said... Great, thank you very much! August 25, 2016 at 1:55 AM Post a Comment Newer Post Older Post Home Subscribe to: Post Comments (Atom) My Photo Charith Mahawatta Blog Archive ► 2016 (4) ► March (3) ► January (1) ► 2014 (1) ► February (1) ► 2013 (8) ► September (1) ► August (4) ► July (2) ► May (1) ► 2012 (2) ►
the server is expecting LDAP protocol version 3. If you do not, you will receive a warning fatal error: call to undefined function ldap_connect() and fail to bind, such as: ldap_bind(): Unable to bind to server:
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Protocol error In order to avoid this, make this call: ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3); ?> Where $ds is the php ldap authentication example result returned by ldap_connect(...); And this is example CODE for test your LDAP Server:
error_reporting(E_ALL & ~E_NOTICE);
$ldapconfig['host'] = 'ldap.kiss'; //Change your host
http://charithmahawatta.blogspot.com/2011/03/ldapbind-unable-to-bind-to-server.html $ldapconfig['port'] = 389; //Default port
$ldapconfig['basedn'] = 'dc=kiss'; //change your basedn
$username = "quang.nguyen"; //Change your username
$ds=ldap_connect($ldapconfig['host'], $ldapconfig['port']);
ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3);
$dn="uid=".$username.",ou=people,".$ldapconfig['basedn'];
if ($bind=ldap_bind($ds, $dn, $password)) {
echo("Login correct");
} else {
http://shinphp.blogspot.com/2011/08/php-ldapbind-unable-to-bind-to-server.html echo("Unable to bind to server.");
echo("msg:'".ldap_error($ds)."'");#check if the message isn't: Can't contact LDAP server :)
#if it say something about a cn or user then you are trying with the wrong $dn pattern i found this by looking at OpenLDAP source code :)
#we can figure out the right pattern by searching the user tree
#remember to turn on the anonymous search on the ldap server
if ($bind=ldap_bind($ds)) {
$filter = "(cn=*)";
if (!($search=@ldap_search($ds, $ldapconfig['basedn'], $filter))) {
echo("Unable to search ldap server
");
echo("msg:'".ldap_error($ds)."'");#check the message again
} else {
$number_returned = ldap_count_entries($ds,$search);
$info = ldap_get_entries($ds, $search);
echo "The number of entries returned is ". $number_returned."
";
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