Network activity

Open ports¶

22: SSH
71: Anycubic Orca compatibility API (octoprint compat), moved from port 80
80: HTTP / Dynamic (Mainsail, Fluidd, ...)
2222: SSH (only with the tools or installer)
4408: HTTP / Fluidd
4409: HTTP / Mainsail
5555: ADB (not on KS1)
5800: HTTP / VNC web interface
5900: VNC
7125: HTTP / Moonraker
8080+: HTTP / mjpg-streamer for each connected camera (8080, 8081, ...)
9883: MQTT / Mochi internal server

Outgoing activity¶

HTTPS¶

Those URLs are repositories and mirrors for system / Rinkhals updates. They are used explicitely by Rinkhals when checking for updates.

https://github.com: To check / download Rinkhals updates
https://api.github.com: To check Rinkhals updates
https://raw.githubusercontent.com: As a trusted repository to check / download new apps
https://cdn.meowcat285.com: To check / download system updates
https://cdn.cloud-universe.anycubic.com: To download official updates

MQTT¶

Live connection to Anycubic public MQTT servers. Used for OTA updates, remote control using Anycubic apps. Anycubic firmware is connecting to them when LAN mode is disabled. Rinkhals Installer uses them to detect new (not yet mirrored) updates.

ssl://mqtt.anycubic.com:8883: Used for China
ssl://mqtt-universe.anycubic.com:8883: Used globally

NTP¶

NTP client for syncing time. It will check DHCP lease for an advertised NTP server, and if none is advertised will use pool.ntp.org.

123/UDP to either:
A local NTP server advertised by DHCP from your router
pool.ntp.org

DNS¶

DNS uses 1.1.1.1 (Cloudflare DNS) and 8.8.8.8 (Google DNS) using standard port 53/UDP. It does not appear to support DoT or DoH. The stock firmware does not appear to use the DNS servers advertised by DHCP.

53/UDP: To 1.1.1.1
53/UDP: To 8.8.8.8

Apps¶

Hostname and DNS
- Advertises the printer's hostname locally via DHCP/DNS.
Cloud2LAN bridge
- MQTT servers listed above to simulate cloud features
Discovery helper
- Local IGMP / SSDP
Moonraker
- Update manager

And other apps for their respective services: