Save NAS SSH Password on LMDE and Enable Wake-on-LAN

🔐 Save NAS Root SSH Password (Key-Based Login)

To avoid typing your NAS root password every time, use SSH key-based authentication. It’s secure and easy to set up.

Step 1: Generate SSH Key

Open the terminal on your LMDE PC and run:

ssh-keygen -t rsa -b 4096

Press Enter through the prompts to use the default settings.

Step 2: Copy the Key to Your NAS

Use the following command (replace the IP with your NAS IP):

ssh-copy-id root@192.168.0.100

Step 3: Test It

Login to the NAS:

ssh root@192.168.0.100

If it logs in without asking for a password, you're done!

⚙️ Enable Wake-on-LAN on Your NAS

Wake-on-LAN lets you turn on your NAS remotely via a magic packet.

Step 1: Enable in BIOS

Reboot your NAS and enable options like Wake on LAN or Power on by PCI-E in BIOS/UEFI.

Step 2: Enable in Linux

sudo ethtool -s enp37s0 wol g

Step 3: Make It Persistent

Create a systemd service:

sudo nano /etc/systemd/system/wol@.service
  

Paste this content:

[Unit]
Description=Enable Wake-on-LAN on %i
After=network.target

[Service]
Type=oneshot
ExecStart=/sbin/ethtool -s %i wol g

[Install]
WantedBy=multi-user.target
  

Enable it:

sudo systemctl enable wol@enp37s0.service

⚙️ Enable Wake-on-LAN on LMDE PC

Follow the same steps to enable WoL on your LMDE PC. Make sure it's supported in BIOS, and the same systemd method can be used for persistence.

📡 Send a Wake-on-LAN Packet

From any device, use the MAC address of your NAS or LMDE PC:

wakeonlan XX:XX:XX:XX:XX:XX

Replace the MAC with the actual hardware address of the device’s network interface.

✅ Done!

You can now connect to your NAS securely and power it on remotely!