Hello Hideyoshi.
Using a different port is tricky. You can consider getting consultancy support https://about.gitlab.com/consultancy/ -- You received this message because you are subscribed to the Google Groups "GitLab" group. To unsubscribe from this group and stop receiving emails from it, send an email to gitlabhq+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/gitlabhq/9bd3d0c1-88b5-41dd-924e-dc46eb24dba0%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.