Tried to setup local validator node in a cloud server with firewall. Got the localhost:port after successfully bringing node up. After setting firewall rule for that port, laptop libra client could connect to it. But account mint or query failed.
libra% account mint 0 100
[ERROR] Error minting coins: invalid digit found in string
The same cmd could complete on the server side. Did I miss any other ports on firewall setting or anything else should be done?