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Tag: Raspbian

  • How To: List what Procs are using the Lib in Linux

    Find the Procs After upgrading an important package in Linux -or other Unix variant- that provides a library used by many other processes. Instead of restarting the server for the new lib to take effect, the procs can be restarted -or HUPed- individually. Before we begin, lsof needs to be installed. # RHEL / CentOS…

  • How To: TOTP 2FA Linux SSH Using Google-Authenticator

    Using only a username and password for authentication is no longer secure. With user-database dumps reaching millions of exposed, albeit hashed and salted, passwords. Secure authentication should include not only something you know, but also something you have (in your pocket… always). There have been several OTP and general 2FA solutions for Linux. From SMS…