CFA is designed to function behind the firewall. To ensure its proper operation, you have to open the following ports.

Between the CFA and Internet

Port TCP/UDP Direction Purpose
122 TCP CFA to support.eversyncsolutions.com Technical support tunnel
       
443 TCP CFA to secure.sosonlinebackup.com Registration
    CFA to license.myeversync.com
CFA to billing.myeversync.com
Licensing
    CFA to update.evscloud.com
CFA to uip.evscloud.com
Software updates
    CFA to sr.inf-us-ut-1.myinfrascale.net
CFA to uip.inf-us-ut-1.myinfrascale.net
CFA to sr.inf-ca-tor-1.myinfrascale.net
CFA to uip.inf-ca-tor-1.myinfrascale.net
CFA to sr.inf-uk-nhm-1.myinfrascale.net
CFA to uip.inf-uk-nhm-1.myinfrascale.net
Remote access from the Dashboard
    CFA to cm.sosonlinebackup.com Sending monitoring events to the Dashboard
       
443, 2300 TCP CFA to r.inf-us-ut-1.myinfrascale.net
CFA to r.inf-uk-nhm-1.myinfrascale.net
CFA to r.inf-ca-tor-1.myinfrascale.net
Replication

Between the CFA and a protected machine

In Windows, these ports open automatically during the DR Backup Agent installation.

Port TCP/UDP Direction Purpose
9101, 9102, 9103, 9104, 9105 TCP CFA to client machine Basic CFA communication
9102 UDP Client machine to CFA CFA auto-discovery
139, 445 TCP Client machine to CFA DR Image backup (Samba ports)
135, 137, 138 UDP Client machine to CFA DR Image backup (Samba ports)

In a Unix-like operating system, you also have to open the following ports:

Port TCP/UDP Direction Purpose
22 TCP CFA to client machine SSH-based management
873 TCP CFA to client machine rsync daemon port

Between the CFA and VMware vCenter/ESXi

Port TCP/UDP Direction Purpose
443, 902 TCP CFA to VMware vCenter/ESXi host VMware VM backup

Between the CFA and an admin machine

Port TCP/UDP Direction Purpose
80, 443 TCP Admin machine to CFA WebGUI interface
22 TCP Admin machine to CFA SSH-based management (optional)