If you are unsure, you are best to either use Wireshark to see if it is negotiating a TLSv1 session, as well as checking the event viewer for schannel related issues. Example #2 Example of connecting securely to LDAP server. Error Code: [-1" when I run php artisan ldap:test , can you help me how I can fix this bug knowing that I'm using xammp , thanks a lot You try to connect to same ldap server locally and on server? I seemingly take forever to make use of ldap_start_tls work. In general relativity, why is Earth able to accelerate? the next calls to ldap_* functions, usually with As above, be sure to set SELinux back to Enforcing with setenforce 1 if you temporarily disabled it to test. TLS_REQCERT never "LDAPTLS_CACERT=C:\\Program Files\\php\\certs\\rootca.pem". How to deal with "online" status competition at work? Interesting. // make sure your host is the correct one. Connect and share knowledge within a single location that is structured and easy to search. return a LDAP\Connection instance as it does not actually connect but just Your previous content has been restored. Describe the bug Login via Active Directory account. Anything in your logs (see: storage/logs/*)? I use other applications with LDAPS aswell. @llawwehttam and @joaomezzari I had the same problem but i have found a bug reported (https://gist.github.com/aderixon/01ee459155a5f51264cb0f029c4b6f87) in the version of PHP used in the script for installing BookStackApp that cause intermittent problems with PHP LDAP against a TLS connection using a self-signed server certificate. Please contact me if anything is amiss at Roel D.OT VandePaar A.T gmail.com The text was updated successfully, but these errors were encountered: @joaomezzari Is the certificate self-signed? If anyone has a clue let me know. LDAP_SERVER=ldaps://dc02-srv2016.ad.mydomain.com:636 Tested in Linux, ubuntu 9.10, PHP/5.2.10-2 and Apache/2.2.1.2. I get this error: Already added the CA to the trust store on the server. And I remind you again: the issue reproduce only with ldaps://. Sign in Change your filter to a variable and do something like this: Lol, just need to replace the last name with something real. I can also telnet to this port from another openldap-client machine. Be careful about the certificate's permission if you are using Windows. I'm kinda lost too, I don't know if other people are having issues since LDAPS is not that commonly used. Same error displayed on the web page ldap_connect("ldaps://myldapserver.host"); Everyone is posting about getting ldaps:// working in a WAMP/AD stack, I had a tough time finding how to get it going in RHEL 5.1 (w/ all stock rpms). Enabling a user to revert a hacked change in their email. -b "DC=example,DC=com" cn="acoder". @Duan-fei I personally believe there is something going wrong with verified LDAPS. 2 Haven't been able to reproduce this despite trying a couple of times. To learn more, see our tips on writing great answers. This is my ldap configuration. Example #1 Example of connecting to LDAP server. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. I have filled openssl.cafile in php.ini and this doesnt work, i think is the problem you are describing. I have a problem in connecting to LDAP from windows server using PHP. SELinux is running Enforced. Sometimes I've got error: ldap_bind(): Unable to bind to server: Can't contact LDAP server Screenshots Your Configuration (please complete the following information): Exact BookStack V. This would cause a seg fault when calling ldap_connect with a uri style connect string; e.g. To learn more, see our tips on writing great answers. Unable to bind to server: Can't contact LDAP server Support & Bugs felipe.ferreira (felipe) December 23, 2020, 3:07pm #1 * root@dab6a1398a2e:/var/www/html# ./console loginldap:synchronize-users --login=felipe.me@MYDOMAIN.it -vvv * DEBUG [2020-12-23 14:57:59] 2527 UserSynchronizer::makeConfigured (): LDAP access synchronization not enabled. In my environment the cipher suite has not been changed on the DC in any way. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Have a question about this project? Windows only: you must add a ldaprc file in your current directory so ldap can validate the server certificate, Note : if you are using OpenLdap client > v2 and PHP > 4.0.4, you don't have to use that function. I sure do wish there was some way I could get this information out to all programmers in the world about binding and searching MS AD. Note that (in my very limited experience) you cannot use the ldaps protocol with tls, or ldap_start_tls() will report "ldap_start_tls(): Unable to start TLS: Operations error", and ldap_error() will return error code 1. It bears repeating (and the examples should probably be updated) that ldap_connect() doesn't actually test the connection to the specified ldap server. start-TLS uses port 389, while ldaps uses port 636. ldaps has been deprecated in favour of start-TLS for ldap. For all users,admins how are using or taying to connect to Microsoft Active Directory with PHP openLDAP extension, Apache,OpenSSL and they are getting: PHP Warning: ldap_start_tls(): Unable to start TLS: Operations error in /path/to/script.php. Cartoon series about a world-saving agent, who is an Indiana Jones and James Bond mixture. If I used .net application using same username, password, and domain, the connection always be made successfully. I have found the answers.. Don't just print some message of our own devising. Regulations regarding taking off across the runway. Thanks for contributing an answer to Stack Overflow! - heiglandreas. 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. That photo ends up in the "jpegPhoto" attribute. Semantics of the `:` (colon) function in Bash when used in a pipe? An issue was found in how BookStack handles LDAP URI's. I already have this in my file: TLS_CACERT /etc/openldap/certs/domain.crt I didn't add the cert to the trust store this time, but I edited the .env and added the LDAP_TLS_INSECURE=true parameter just in case, but seems that it's not working @MikeyMJCO Hey, just checking if you were able to reproduce the possible issue in your environment. Is there any philosophical theory behind the concept of object in computer science? currently not documented; only its argument list is available. (userAccountControl:1.2.840.113556.1.4.803:=2)))BaseDN = DC=local,DC=test,DC=mxRootDN = CN=Administrador,CN=Users,DC=local,DC=test,DC=mxPassword = *****Login Field = samaccountnameUse TLS = No, When test connection: "Test of Main Server myldap Succesfull. Rationale for sending manned mission to another star? There will be a delay while the code times out trying to talk to the main server but things will still work. Both encrypted (start-TLS ldap) and unencrypted ldap (ldap) run on port 389 concurrently. PHP Freaks replacing <host> and <port> with the hostname and the port the server is supposed to listen on. If I temporarily disabled SELinux, the ldap test script worked fine in a browser. then i added another $filter "(o=Exchange)" and it failed; then i went back to the example above, and the same old error. ], it appears to connect using ID/PW just fine[altering it makes it fail]. And it throws the error on ldap_bind() - that's what's on line 71. Looks like the log is empty tbh. Though you must be sure that the server you're authenticating/searching is a Global Catalog server. Disclaimer: All information is provided \"AS IS\" without warranty of any kind. If I'm honest, I'm not really sure how to diagnose such an issue. (userAccountControl:1.2.840.113556.1.4.803:=2)))BaseDN = DC=local,DC=test,DC=mxRootDN = CN=Administrador,CN=Users,DC=local,DC=test,DC=mxPassword = *****Login Field = samaccountnameUse TLS = yes, When test connection: "Test of Main Server myldap failed. Good old strace did the trick and helped me find the problem Be careful when using ldap_connect with the sun client libraries that come bundled with solaris. I'll try to record video proof. Hello ,i dont know about SSL port , but default Port for LDAP is 389. Moving to PHP, I'm attempting to bind to the same server using the same credentials and pass (sapass) above. Sometimes I've got error: ldap_bind(): Unable to bind to server: Can't contact LDAP server. # getsebool -a | grep ldap . Connection errors: TLS certificate issues be contacted! It's not critical, I'll use ldap:// to avoid the problem. Not the answer you're looking for? I would like to know. What one-octave set of notes is most comfortable for an SATB choir to sing in unison/octaves? You can post now and register later. I would expect it to be php-fpm.log - the numbered versions are the old logs. Asking for help, clarification, or responding to other answers. Ah, Damn. This is the only content: NOTICE: error log file re-opened. Is there a reason beyond protection from potential corruption to restrict a minister's ability to personally relieve and appoint civil servants? Running a new test with the updated branch now - just for the sake of completeness. It seems like httpd isn't reading a necessary certificate and is thus not able to communicate with the remote LDAP server. LDAP_SERVER=ldaps://dc.domain.com:636. What does it mean, "Vine strike's still loose"? https://www.windowstechno.com/how-to-enable-netlogon-debugging-log-for-domain-controller/. Is there a grammatical term to describe this usage of "may be"? For me, it only works with the UPN. Due to gnutls (version < 3) incompatible with TLS 1.2. Am I doing wrong in the codes or perhaps configuration should be made? I have an odd issue where my root user can connect to an external LDAP server, but a normal cPanel user cannot. Could you open a support ticket using the link in my signature so we can take a closer look? Clear editor. Of course, you _must_ have LDAP replicates before doing this. When specifyng the host with the ldap protocol, my connection failed and it took me a good day to trouble shoot. A fix was applied for release v0.26: c247640. What distro do you use? Regulations regarding taking off across the runway. If not, connecting and binding will fail. We have LDAP server where users can upload photos for their "profile" picture. Just to confirm is this a new BookStack/Ldap setup you're experiencing this on or are you just experiencing this after performing an update? It should be mentioned, that TLS connections for LDAP *REQUIRE* you to use LDAP Protocol version 3. rather than "Gaudeamus igitur, *dum iuvenes* sumus!"? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. I was able to set this up in five steps. I'm using AD not much to add I guess. The PHP/LDAP setup tutorials I've looked at work with EL6, and I am running EL7. cPanel, WebHost Manager and WHM are registered trademarks of cPanel, L.L.C. Setting LDAP_TLS_INSECURE is the equivalent TLS REQCERT never in /etc/ldap/ldap.conf for the session so this might be unrelated. Can you be arrested for not paying a vendor like a taxi driver or gas station? I'm a bit in the dark myself here since I don't have an LDAPS server to test with. Posted June 29, 2009. I also met this kind of problem, have you solved this problemCan you help me In Germany, does an academic position after PhD have an age limit? (Not to mention it works for root.) Can you manually contact the LDAP server over LDAPS from the hosting server? What kind of LDAPS server are you using and can you provide some more info on your setup/config? Well occasionally send you account related emails. :) Read the LDAP API documentation for more information. Usually there is at least one Global Catalog server in your domain, so if the connect fails try another server it will work. I have found the answers.. ldap_connect() will otherwise You cannot paste images directly. Test ldapsearch with TLS is ok ldapsearch -H ldap://xxxx -x -ZZ /etc/pki/tls/certs/xxxx.pem -D 'xxxxx' -w 'xxxx' -b 'cn=xxx,cn=users,dc=xxx,dc=xxxx' But ldap_bind won't find ldap server. LDAP_EMAIL_ATTRIBUTE=mail The previous note concerning searching the whole AD tree works fully. After disabling CageFS for my cPanel user, the test script works. LDAP_ID_ATTRIBUTE=BIN;objectGUID I changed the domain name into IP address and connection can be made. How to install multiple client certificates in ubuntu server? Yes, that would be helpful. In order to connect to an ldap server via ssl I needed to use a certificate. :-). This function is Restore formatting, We should be doing LDAP to port 389 and issuing an [ldap_start_tls()](https://www.php.net/manual/en/function.ldap-start-tls.php) call for the connection to switch to TLS, Then issuing the bind command and authenticating. If anyone is still experiencing issues it's work updating to the latest release as you may find your issue has been fixed. When I temporarily disabled SELinux, the ldap test script worked fine in a browser. By clicking Sign up for GitHub, you agree to our terms of service and In July 2022, did China have more nuclear weapons than Domino's Pizza locations? This sounds very similar to #1069 and perhaps #247. ldap_connect("ldap://somwhere.com"); Just remove the 'ldap://' and specify the host. So, that means that it's working for you? After doing the ldap_connect, do the ldap_bind. Note that hostname can be a space-separated list of LDAP host names. And what's on line 71? 1 Environment: LDAP Server Type: ActiveDirectory LdapRecord-Laravel Major Version: v2.5 PHP Version: 8.0 I'm using ldaprecord and I'm getting "ldap_bind (): Unable to bind to server: Can't contact LDAP server. I changed the domain name into IP address and connection can be made. Should work with your original config and file state. Anything in your main PHP logs - sorry should have been clearer that the LDAP debug should give you output to PHP logs not the application logs. As for the configuration, I have the following: Default Server = yesActive = yesServer = ldaps://myldap.local.test.mxPort = 636Connection Filter = (&(objectClass=user)(objectCategory=person)(! I personally haven't run in to this issue with our AD infrastructure (2012R2/2016). to your account. Looks like that's solve my problem: BookStack/app/Auth/Access/LdapService.php, (Line 197 in app/Auth/Access/LdapService.php), @joaomezzari try adding to /etc/openldap/ldap.conf this line: Apparently, the settings in ldap.conf make a different in the way SSL/TLS is handled by PHP. just moved CA certificate (b64 encoded) from. Where is crontab's time command documented? If you don't want your PHP program to wait XXX seconds before giving up in a case when one of your corporate DC have failed, and since ldap_connect() does not have a mechanism to timeout on a user specified time, this is my workaround which shows excellent practical results. Already tried with the TLS_REQCERT never answell, same error that it can't contact the ldap server. I have an Oracle database that I connect to from apache. LDAP_DN=bookstack.connector@domain initializes the connecting parameters. Maybe this is because you have dot in username? Sometimes I've got error: ldap_bind(): Unable to bind to server: Can't contact LDAP server. LDAP_USER_FILTER=(&(objectCategory=Person)(sAMAccountName=${user})) In general relativity, why is Earth able to accelerate? This was on Solaris 10 sparc. unsure if this qualifies as strictly an "ldap" technical question, or PHP, but my PHP code keeps generating error: Warning: ldap_search() [function.ldap-search]: Search: Can't contact LDAP server in [path and file name here], bool(false) [var_dump function gives the bool(false). PHP Warning: Module 'redis' already loaded in Unknown on line 0, CloudLinux PHP (ALT) Not Loading Certain Extensions. Are you sure you have something important to add to it. Code works in Python IDE but not in QGIS Python editor. Damn, git repo is in --single-branch mode from the install. LDAP in PHP code "Can't contact LDAP server" in windows server, Building a safer community: Announcing our new Code of Conduct, Balancing a PhD program with a startup career (Ep. You can post the ticket number here so we can update this thread with the outcome. So it turns out SELinux has a multitude of fine-grained switches to allow specific activity from different processes. in the version of PHP used in the script for installing BookStackApp that cause intermittent problems with PHP LDAP against a TLS connection using a self-signed server certificate. 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows. Figured there was an issue with the CA, but that turned out not to be the case. Ok, I created a new test environment from scratch to test it. Semantics of the `:` (colon) function in Bash when used in a pipe? Otherwise debugging just becomes a guessing game. We have a root certificate for the domain. ldap_result: Can't contact LDAP server (-1) Ask Question Asked 6 years, 6 months ago Modified 4 years, 4 months ago Viewed 50k times 6 G'day, I configured openldap-server machine which is running on port 636. // assuming the LDAP server is on this host, // bind with appropriate dn to give update access. I successfully have LibreNMS and Netbox both authenticating against the DC via LDAPS. You don't use encryption. Already on GitHub? How to say They came, they saw, they conquered in Latin? Despite enabling trust my personal CA, I still encountered this issue. I'm able to query the remote ldaps server using ldapsearch: ldapsearch -H ldaps://ldap.example.com -D "CN=serviceaccount,OU=Services,DC=example,DC=com" -x -w "sapass" -LLL -b "DC=example,DC=com" cn="acoder" This returns expected data on user acoder. If I temporarily add this to /etc/openldap/ldap.conf, the script works: Once I comment that out, the script fails with "Can't contact LDAP server". opened connection will be returned. By last restart httpd and php-fpm services. LDAP over SSL not working - ldap_bind(): Unable to bind to server: Can't contact LDAP server, Attempted fix for ldaps issues as shown in, https://www.windowstechno.com/how-to-enable-netlogon-debugging-log-for-domain-controller/, https://gist.github.com/aderixon/01ee459155a5f51264cb0f029c4b6f87, can't login with LDAPS on AD without LDAP_TLS_INSECURE=true. As I said, if I change for LDAP on port 389, everything works like a charm. TLS_REQCERT never My ldap script worked fine from that moment on. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Elegant way to write a system of ODEs with a Matrix, Negative R2 on Simple Linear Regression (with intercept). The actual connect happens with SELinux is running Enforced. Just to confirm is this a new BookStack/Ldap setup you're experiencing this on or are you just experiencing this after performing an update? If you don't mind "tinkering under the hood" adding ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, 7); before return ldap_connect($hostName, $port); in ldap.php might give you a more verbose PHP/LDAP debug error to go off. can you contact the ldap server from the machine running php? And waiting for the fix production.ERROR: ldap_bind(): Unable to bind to server: Can't contact LDAP server {"exception":"[object] (ErrorException(code: 0): ldap_bind(): Unable to bind to server: Can't contact LDAP server at /var/www/bookstack/app/Auth/Access/Ldap.php:93). Not the answer you're looking for? If no argument is specified then the LDAP\Connection instance of the already INTEGRATING ACTIVE DIRECTORY WITH PHP-LDAP AND TLS. Are you able to connect from the BookStack system to the LDAPS server via another tool, Like directly on the command line? This returns expected data on user acoder. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Your Configuration (please complete the following information): The text was updated successfully, but these errors were encountered: Update: the issue reproduce only when connected to LDAP_SERVER over TLS Re: Openldap and ldapadmin: Can't contact LDAP server (-1) for user. That works too, some apps actually only support this. rev2023.6.2.43474. LDAP_DISPLAY_NAME_ATTRIBUTE=cn What's the idea of Dirichlets Theorem on Arithmetic Progressions proof? Thanks for contributing an answer to Stack Overflow! cp cafile.pem /etc/pki/ca-trust/source/anchors/. can you contact the ldap server from the machine running php? To learn more, see our tips on writing great answers. Just tested the connection from the server to be sure and it's ok aswell. Have you tried hardcoding the username and password and give a shot ? LDAP works with PHP CLI but not through apache, can not bind to the LDAP directory with secure connection with php, PHP LDAP Connection Can't Contact LDAP Server, PHP ldap_connect using ldaps to connect to Active Directory getting Unknown CA error, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Since there's not been any further recent activity on this I'll close it off. Just out of curiosity, have you used IISCrypto or otherwise changed the cipher suite on your DC? What OS is BookStack running on? By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. To use LDAPS on Windows whitout "c:\openldap\sysconf\ldap.conf": The host name parameter can be a space separated list of host names. In my case, SELinux was configured out of the box to disallow LDAP connectivity (even though ldaps is enabled in firewalld). @ssddanbrown I tried but I'm getting "CN=serviceaccount,OU=Services,DC=example,DC=com" -x -w "sapass" -LLL Php ldap error: Can't contact LDAP server. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, ldap_bind() fails with "Can't contact LDAP server", Building a safer community: Announcing our new Code of Conduct, Balancing a PhD program with a startup career (Ep. If ldap_bind fails, use the command ldap_errno to get the error number. and use setsebool -P to enable it if it's not. This thread is more than a year old. Human Language and Character Encoding Support, https://andreas.heigl.org/2020/01/31/handle-self-signed-certificates-with-phps-ldap-extension/, http://www.mail-archive.com/php-bugs@lists.php.net/msg02201.html, http://developer.novell.com/ndk/doc/php/index.html. Maybe my configuration is wrong or something else. The following signature is still supported for backwards to open a connection as soon as one is needed. The difference is: @Mant1kor I can try and reproduce/play with this on my side if it's helpful? TLS_CACERT /etc/openldap/certs/domain.crt, I have tried this with centos 7 and it works, @ssddanbrown Updated it as you suggested, getting this error now: Why is Bb8 better than Bc7 in this position? seems plausible. It turns out SELinux has a multitude of fine-grained switches to allow specific activity from different processes. 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. We have placed cookies on your device to help make this website better. Returns an LDAP\Connection instance when the provided LDAP URI To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I had to disable TLS 1.2 in two scripts by adding desactivate TLS1.2 :- add, In this two scripts :/var/www/glpi/inc/auth.class.php, Fonction connection_ldap() - ligne 217/var/www/glpi/inc/authldap.class.php, Fonction connectToServer() - ligne 2203, Thank you Roshan, in SSL connections default port for LDAP is 636, Last edited by lexcorp (2017-07-27 16:18:49).
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