Category: Debian
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FIX: Collabora APT/DEB error NO_PUBKEY D8915E456E7C440E (signatures couldn’t be verified)
I got these errors: It seems a key was rotated. First check if there is indeed an old key: Check out the keyring file That’s not key D8915E456E7C440E. Fix Let’s get it: You might need sudo (sudo wget). Now check the keys: Whoo! That’s key 7EB1530818B7683284483B7BD8915E456E7C440E. Now apt-update will work.
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LVM commands not found
Getting this? Means you might have used su. Just do su – or do a proper login, so your $PATH is set correctly.
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Simple SSH backup of routeros / mikrotik
Prerequisites: Howto: 1. Create ssh keys (without passphrase) on the linux host: ssh-keygen 2. Copy ~/.ssh/id_rsa.pub , put in a .txt file, upload to routeros 3. Create a read only user 4. In the user menu, go to SSH keys, add the SSH key to the user 5. Add cronjob on linux host: