LDAP Connection Error: Name or service not known

[SaifNeon]

• Used Zammad version: 6.2
• Used Zammad installation type: pAKAGE
• Operating system: UBUNTU 20.04
• Browser + version: MICROSOFT EDGE

Expected behavior:

• while connecting with LDAP Integration. it should connect with AD/LDAP Server and Sync cridentials

Actual behavior:

• While Connecting giving errors : Can’t connect to (**** LDAP Host Name****) on port ‘636’, getaddrinfo: Name or service not known. And doesn’t continue after that

Steps to reproduce the behavior:

• Go to Zammad Setting… Select Integration . Select LSAP . Click on new source . Fill the required data and returns error. It happens in both cases where LDAP is on , And where LDAP is off from Zammad side. Also checked other solutions didn’t work.

[MrGeneration]

Your keyboard seems to be broken…

The error you receive indicates that the hostname cannot be resolved.

[SaifNeon]

I have created the host name on LDAP Server with Admin Permission. Still the same

[MrGeneration]

I don’t understand what you’re trying to say.
How in the world is Zammad, a different server / system, supposed to know about a hostname “you set up on a different machine” ?

[SaifNeon]

I like to know about the issue All Zammad Integration of LDAP asks for Host Name and account username. Nothing more. Or is there proper Guide for that

[SaifNeon]

Even my server is hosted on same server

[fliebe92]

I don’t get the issue and therefore I cannot help, @SaifNeon. I’m sorry.

[nacnudz]

Hi,
I am having the same / similiar issue.
I have had Zammad running for close to 12 months and had no issue.

I have just noticed that zammad is not syncing with my LDAP server (AD).

I am seeing the below error message come up.
I have logged in via ssh and the i can ping the name without any problem and i am connected to the ldap service on other systems without any other problem.

UBUNTU 22.04
Zammad version 6.1.0-1699563276.d63911c3.jammy

[SaifNeon]

Its like I connect LDAP Server with Zammad from Zammad features it shows me above mentioned error

[MrGeneration]

It tells you it can’t connect. Look for the cause of that. This is not a Zammad error persé.

[SaifNeon]

I meant I used same credentials before for Connecting others tools with LDAP Server. It worked normally. Its showing onyl for Zammad that xxxxxxxxx Site Cannect on port “636” Name or service unknown

[MrGeneration]

You don’t seem to be understand that the error message is not speaking about invalid credentials but the connection not working. You have to find the cause for that.

[nacnudz]

What is the best way to test this connection from the Zammad host?
I am able to connect from another machine to the ldap server and browse the directory without any issues.
I can ping the ldap machine from the Zammad host
I can telnet to port 389 and recieve a connected message

[astrastudio]

I have the same error.
I am running 6.2.0-1707903324.09151676.bullseye

[astrastudio]

Editing the LDAP config and removing the traling slash at the end of the hostname helped. I have no f****ing clue where that came from.