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John Weldon

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Here are some recent posts to start with:

Quick Tip :: Check Google Email Address

It’s possible to check if a Google Suite based email address is valid or not:

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$ curl -i https://mail.google.com/mail/gxlu?email=${EMAIL_ADDRESS}
Monday, November 6, 2023

Quick Tip: Fix Apt GPG error NO_PUBKEY

In the Ubuntu (Debian) packaging world of Apt, the use of apt-key has been deprecated (other than apt-key del to remove keys).

I’ve run into errors like the following periodically, and have had to spend more time than I should reminding myself of how to fix the issue:

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W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://apt.releases.hashicorp.com jammy InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY DA418C88A3219F7B
Wednesday, February 22, 2023