I just installed nodered on a fresh Raspberry Pi. During installation, I was asked to enter a password - twice. I know what I entered, I use the same password for a number of applications (I know I shouldn't) but now when I go to http://server:1880/ it says login failed.
There's no "forgot password"-function - so, how do I change it?
How did you install it? None of our standard install methods set up security for you - you have to do it manually by editing you settings file and configuring the adminAuth property.
Though you would probably be asked for your password for your pi login in order to install the software. You should be able tell when you are being asked to create a password rather than enter an existing one as the text asking for it should indicate that. Also when creating a new one you should be asked to enter it twice in succession in order to check for typos.
after trying out several solutions and none worked i just decided to comment out fully the adminAuth section in settings.js and restarted my node-red/Raspberrypi. not so secure but i am not working on any sensitive projects so its all good