[Question] which ports required for ERPNext production

i want to know which port are required to be open for full production functionality because i have issue with lxd erpnext container, i am just route port 80 to the container.

the issue is that when i do salary slip sibmit it timeout

port 80 is the default port for the site.

Please check https://frappe.github.io/frappe/user/en/bench/guides/setup-multitenancy