I am completely new to proxmox mailgateway. Installation went like a charm, everything ist up and running on a virtual machine inside hyper-v. I am just playing around not yet really using the system.
Only two days after my installation I got some complaints form reports.cert-bund.de that this system has open port 111 (upd).
Ist it necessary to have this port open? My system is not behind a firewall, so I would like to have only necessary ports open.
Can anybody help me how to close this port without loosing needed functions?
Only two days after my installation I got some complaints form reports.cert-bund.de that this system has open port 111 (upd).
Ist it necessary to have this port open? My system is not behind a firewall, so I would like to have only necessary ports open.
Can anybody help me how to close this port without loosing needed functions?