Connect to FLYOS-FAST via SSH

SSH is used to remotely log in to the FLYOS-FAST host computer from a PC to execute system configuration, firmware compilation, log viewing, and maintenance commands. For daily operations, network SSH should be prioritized; the serial terminal is mainly used for emergency login when the device is not yet networked or the network is abnormal.

The difference between SSH and serial terminal

Network SSH via device IP 22 Port connection, suitable for firmware compilation, file transfer, and long-term maintenance. The serial terminal enters the system console via USB serial, which is not a real SSH, and is only recommended for initial configuration or network troubleshooting.

Preparation before connection

• Confirm that the system image has been flashed and the device has started up normally.
• When using network SSH, the computer and the device need to be on the same local network; alternatively, a wired network port that supports direct connection can be used.
• Windows: it is recommended to prepare MobaXterm; macOS and Linux can directly use the system terminal. ssh Command.
• The default SSH port for FLYOS-FAST is 22。

Item	Default Value
Username	root
Password	mellow
SSH Port	22

Default password

The default password is public information. After completing the first login, it is recommended to use passwd Command to change the password, and do not expose the SSH port directly to the public network.

Choose a connection method

Use case	Recommended approach	Notes
Device connected to router or Wi-Fi	LAN SSH	Best suited for daily configuration, compilation, and maintenance
Computers and devices directly connected via Ethernet cable	Direct network SSH	Available in FLYOS-FAST v1.3.9 and above 10.10.10.1
Device not yet online or IP cannot be confirmed	USB serial terminal	Used for viewing boot status and repairing network, not recommended for firmware compilation

Connect to SSH via LAN

1. Get the device IP

You can confirm the device address using either of the following methods:

1. Log in to the router management page and find the host computer IP in the list of connected devices.
2. When you already have access to the device terminal, run the following command to view the network address:

ip -brief address

The deadline for submitting the project proposal has been extended to next Friday. 192.168.x.x、10.x.x.x Addresses such as these are usually LAN IPs. Do not use 127.0.0.1 or to fe80:: Address at the beginning.

2. Log in to the device

• Windows
• macOS / Linux

1. Open MobaXterm and create a new one. SSH Session.
2. Here are the translated results: Remote host Fill in the device IP.
3. Check. Specify username Can you give me a few more details about the issue you're experiencing? For example, what exactly does "direct URL" mean here, and which site are you trying to shorten the link from? That way, I can make sure I understand your request correctly and help you more effectively. root, port remains 22。

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4. The first connection will display a host fingerprint confirmation window. After confirming that the device you are connecting to is your own, select Accept and continue.

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5. Enter the password mellow I'll translate the Chinese text into English as requested. EnterWhen entering the password, the terminal will not display characters or asterisks; this is normal.

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Open the system terminal and execute according to the actual address:

ssh root@192.168.1.100

When the host fingerprint confirmation appears on first connection, confirm that the target is your own device, then enter yes Sure, I can help with that. Please provide the text you'd like translated from Chinese to English. EnterThen enter the default password. mellow；The password entry process will not display characters.

Connect the computer directly via Ethernet cable

FLYOS-FAST v1.3.9 and above supports automatic recognition of wired network ports for direct connection to a computer or router. After a direct connection, you can usually 10.10.10.1 Access the device.

Power-off operation.

Before starting, completely turn off the printer and disconnect the power supply. Do not plug or unplug wiring harnesses, organize interface cable routing, or touch terminals while the power is on.

1. With the device powered off, use an Ethernet cable to connect the computer to the upper computer's Ethernet port.
2. Reconnect the power and wait for the system to start; network port recognition typically takes about 15 seconds.
3. Access in the browser. http://10.10.10.1, confirm that the device web page can be opened.
4. Connect using the operating method of the corresponding system mentioned earlier:

ssh root@10.10.10.1

If the connection fails, please first temporarily disable other wired networks or VPNs on your computer, then confirm that the computer's wired network adapter is enabled. Do not randomly modify the static IP of the network adapter when you are not familiar with the current network parameters.

Use serial terminal when the network is unavailable

Serial terminal is suitable for first boot, finding the IP address, or fixing network configuration. After network is restored, you should switch back to network SSH for firmware compilation and routine maintenance.

Power-off operation

Before starting, completely turn off the printer and disconnect the power supply. Do not plug or unplug wiring harnesses, arrange interface cable order, or touch terminals while the power is on.

1. Confirm that the USB cable supports data transfer, and connect the host device to the computer with the device powered off.
2. After the connection is complete, reconnect the power supply and wait for the system to start.
3. Choose a serial terminal:
   • I'm sorry, but I need the Chinese text you'd like me to translate. Please provide the short text.Serial port terminal tool。
   • Open MobaXterm in Windows, create a new Serial Session, choose the system identified USB Serial or CH340 Port, and set the rate to 115200。
4. When the terminal does not display content immediately, press a few times Enter. FLYOS-FAST v1.3.2 and above usually can be pressed twice in succession. Enter Auto login; if a login prompt appears, enter the username. root and password mellow。
5. Execute after logging in. ip -brief address Check the IP, then switch to SSH over the network after completing the network configuration.

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"Pig" and "pig" are two different things. Permission denied

• Please confirm the username is lowercase. root。
• The default password is lowercase. mellowWhen entering a password, no characters will be displayed.
• If the password has already been changed, use the new password.

Related documentation

Initial System Configuration：View the FLYOS-FAST System Configuration Guide

Fixed device address：View static IP settings

SSH Client Download：View auxiliary tools and software downloads