Unsupported upgrade for RHEL-based distributions without reinstallation

Most systems, based on RHEL, were not able to upgrade without reinstallation, or best said, not supported. The new version, that was released at around 18 months later contained so many changes that it was hard to test the upgrades themselves until leapp was introduced. Check the lifecycle here: https://access.redhat.com/support/policy/updates/errata However, the biggest problem could be the incompatibility of packages or package formats… but as usually there were some middle layers it was possible to upgrade without reinstallation by performing some manual steps....

April 23, 2022 · 15 min · Pablo Iranzo Gómez

Logitech R400 remote presentation controller on Linux

Since long ago I had it in my mind getting one remote presenter, but most presenters just had two buttons, and the ones that looked to be valid for my use case, required four and seems that only Rii had similar devices, but I didn’t went for it as it was not a huge need, so I ended up with a mini keyboard I had for Raspberry Pi and some debugging in case I had that need....

April 1, 2022 · 3 min · Pablo Iranzo Gómez

How to stake on NYM Validator 🐳🐳🐳

As said in the article about mixnodes and validators, NYM is a technology aiming for providing privacy for the communications. Once you get some tokens, PUNK at this time, you can use the web wallet to check the balance of your account and delegate it to mixnodes or gateways… but, using the binaries, you can additionally delegate to validators. For doing this, we first need the nymd binary on our system to follow the procedure for compiling it from the documentation for validators, but skip the remaining parts https://nymtech....

September 28, 2021 · 3 min · Pablo Iranzo Gómez

Autofirma en Linux

Recientemente, estuve usando un ordenador que no utilizo con frecuencia, pero necesitaba poner una firma en un PDF (y la persona receptora no sólo quería ver la firma ‘digital’, sino tener una imagen ‘firmada’). Autofirma, descargable desde el portal de firma electrónica tiene por suerte una versión para Fedora en formato RPM y que permite realizar esta función. Lamentablemente, a pesar de haberlo instalado y que se instalaron algunas dependencias adicionales, el programa no arrancaba como correspondía....

September 9, 2021 · 1 min · Pablo Iranzo Gómez

imapfilter for Gmail

Until two weeks ago I was using an IMAP server (based on Zimbra) for my work email, but the date for migration to Gmail arrived with no choice to postpone… I was very tied to using my current setup, where: offlineimap was downloading all the email to a local maildir folder, imapfilter classified the email into folders based on local options mutt accessed the maildir folder for working with the emails a script to remove duplicate emails from disk imapdedup....

July 7, 2021 · 5 min · Pablo Iranzo Gómez
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