The correct bind DN should be something like:
CN=ldapservice,CN=Users,DC=bogolinux,DC=net
or
CN=ldapservice,DC=bogolinux,DC=net
If nothing else works, It’s also possible to disable the need for strong auth but it’s not recommended because of the weak security:
Add the following to your /home/samba1/.local/share/containers/storage/volumes/config/_data/include.conf
and restart the samba-dc service:
ldap server require strong auth = no
Is the TrueNAS Scale able to resolve the hostname of the DC correctly?
Maybe you can use an IP address as hostname in the LDAP settings?