[Self-solved] Trouble connection from N900 to the computer
 

I was using Mnemosyne in Easy Debian. Now suddenly the sync stopped working. VNC doesn't work anymore. I cannot ssh from the device to my Linux Mint installation.

But what's weird, I can ssh from my Linux Mint to N900.

Any idea why?

/edit: of course, I enabled ufw and forgot about it...
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