Vigilant User Manual
228/232
18.
Appendix C
18.1.
Network Ports
18.1.1.
Incoming connections
Port
Service
Description
TCP 80
HTTP
Web server
TCP 443
HTTPS
Web server (SSL support)
TCP 21
FTP
FTP server for data backup
TCP 873
RSYNC
Rysnc server for data backup
TCP 502
MODBUS TCP
Modbus TCP slave
TCP 22
SSH
Reserved for remote support and maintenance
18.1.2.
Outgoing connections
Port
Service
Destination
Description
UDP 123
NTP
Configurable by the
user
Automatic system clock synchronization
TCP 502
MODBUS
TCP
Configurable by the
user
MODBUS TCP master
TCP 443
HTTPS
feeds.bevigilant.io
Firmware updates
TCP 465
SMTP
mail.bevigilant.io
Allows sending notification emails to users
(optional)