deb [signed-by=/usr/share/keyrings/debian-webmin-developers.gpg] https://download.webmin.com/download/newkey/repository stable contrib Use code with caution. sudo apt clean sudo apt update Use code with caution. Solution 3: Troubleshooting "NO_PUBKEY"
Ensure your /etc/apt/sources.list.d/webmin.list file points to the new key: deb [signed-by=/usr/share/keyrings/debian-webmin-developers
wget -qO - https://webmin.com | sudo gpg --dearmor -o /usr/share/keyrings/debian-webmin-developers.gpg Use code with caution. adds the correct repository
The easiest and most reliable way to fix this is to use Webmin's official repository setup script. It automatically detects your OS, adds the correct repository, and imports the necessary GPG keys. Run these commands in your terminal: deb [signed-by=/usr/share/keyrings/debian-webmin-developers