LDAP auth not work

[majestic1488]

Hi.
example my config:
...
auth_type: "ad"
ldap_server: my.domain:389
ldap_domain: my.domain
pass_password: true
...

But, in auth.log I see the following:
ssh-bastion[20011]: Failed password for user username@my.domain from ip:port ssh2

what am I doing wrong?

[iamacarpet]

@majestic1488 do you think it could be that your AD doesn't support non-SSL binds?

389 is the non-SSL port AFAIK and the default settings don't allow binds via it.

[majestic1488]

@iamacarpet AD supports non-SSL binds.
And more information, I ran tcpdump on port 389 and there is silence, no requests
There are no outgoing packets from server to port 389
What should we do?