Rolando Garza

Category: Command-Line Ventures

  • 2FA Login on Ubuntu with U2F and Google Authenticator

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    rolandog
    in

    Note: This article infers that you have already configured a U2F device (like a Yubikey), and Google Authenticator. Also, when running pamu2fcfg, run it with the -P option. Update: It turns out that repository package of pam-u2f version 1.0.8 didn’t support the userpresence=0 option necessary to disable the request for pressing the tactile trigger twice;…

  • Multiple PNGs to PDF in Command-Line

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    rolandog
    in

    Note: Keep in mind that this was written during the Covid-19 Pandemic. So, I found myself having to send a signed and scanned document… but paranoid enough to not want to break quarantine to print, sign, and scan a document; I was also doubting that I could simply overlay a copy-pasted signature (because it’s probable…