Thanks for reaching out at Gluu.
In that case please check this link to make sure that you did setup in a proper way. https://gluu.org/docs/gluu-server/4.2/installation-guide/setup_py/#avoiding-common-issues
Then use below command(inside gluu server chroot):
Here, You must see the IP and DNS you provided during installation.
This IP and DNS also should be added in `/etc/hosts` (outside of gluu chroot).
Regards ~ Shakil