Since OpenBSD 7.3 the installation process allow you to encrypt your whole disk. This is a nice security feature that most persons will activate on their laptop. Your CPU will increase effort to encrypt and decrypt all those files residing on your systems. I don't know the real impact, but I estimate (via a simple and empiric measure) that full encryption could add an extra charge of 25% on my machine and thus on my battery. This blog is for persons having an old and/or weak battery laptops running [OpenBSD](https://openbsd.org).

I'm a big fan of [Openbox](http://openbox.org) and I use it since +10 years now. It's simple to use, has a low foot print. But it has tons of features In this blog, I'm sharing a simple configuration aspect which facilitate my day to day. I do not want to convince you between tiling window manager or standard window manager, but you will see that [Openbox](http://openbox.org) offers lot of features without touching a mouse.

After several years of doing upgrades, I discovered lot of unused files on my different system's folders: /usr/X11R6, /usr/lib, ... What is really nice with OpenBSD is that "system" is totally separated from the user space. In this blog I will present my method to clean up the "system" part, including firmware.

Despite the usual connection to a remote hosts, SSH can be used in several other cases. In this blog, I will present 3: proxy, tunnel and JumpServer.

I've build a DNS server which allow me to skip ads, and all those not funny informations. All devises use it as DNS profit from this functionality, mobiles, laptops, ... This feature is so addictive, that when I must replace his hardware, we can feel how it's annoying to not have it. I've decided to have 2 machines in a cluster allowing me to never stop the service even during maintenance. This is really common in our professional servers with paying solutions. This blog will explain how to it with OpenBSD.

Latest changes in ssh rejects ssh-rsa.

In this post, I'll share some screenshots concerning mysysupgrade.sh script. This post is linked to the previous [one post in October of 2020](/post/post_20201021/). No features has been added, just more details on what it does during the upgrade process

Following my last post I had an interesting conversation about [Qterminal](https://github.com/lxqt/qterminal): "a lightweight Qt terminal emulator based on QTermWidget". The discussion was about the "lightweight" of a terminal and the comparison against xterm. But this is not the most interesting part of the discussion. To my eyes, the most interesting feature of Qterminal is the bookmarks. You just click and the terminal is immediately in the corresponding folder. For a lazy person like me this is fantastic. Thus, this blog is about Bookmark in KSH.

I'm sharing here some practices I'm following and some small tips/tools which facilitate my usage of OpenBSD in my day to day. Some a really specific to my usage, others could be re-used.

It's funny to see what does an idle machine. In this blog I compare which websites contacts my OpenBSD laptop with a Windows 10 laptop. I do know very few things of W10, so you can consider it as stock installation. You can see it as a newbie setup.