You may feel safe. Port 123 is used by NTP [0], network time protocol. It's your yun keeping its internal clock up to date.
[0] http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.txt
You may feel safe. Port 123 is used by NTP [0], network time protocol. It's your yun keeping its internal clock up to date.
[0] http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.txt