Category: Planet Ubuntu

Posts for planet.ubuntu.com

How to upgrade your Scaleway server

You have a Scaleway Virtual Private Server (VPS) and you are considering upgrading your installed Linux distribution. Perhaps you have been notified by Scaleway to upgrade an old Linux version. The email asks you to upgrade but does not give you the necessary information on how to upgrade or how to avoid certain pitfalls. What …

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Permanent link to this article: https://blog.simos.info/how-to-upgrade-your-scaleway-server/

An introduction to the Wio Terminal

The Wio Terminal is a microcontroller with WiFi support. It compares with Arduino when you add a WiFi Shield. Also, it compares well with the ESP8266/ESP32 which are also microcontrollers with built-in WiFi support. For the end-user, all these can be programmed using the Arduino IDE and MicroPython. That is, you can choose between any …

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Permanent link to this article: https://blog.simos.info/an-introduction-to-the-wio-terminal/

A gentle introduction to security fuzzing and the Advanced Fuzzing League++ (afl++)

Writing software is similar to translating from one language to another. Specifically, it is similar to translating from your native language to some other language. You are translating to that other language so that you can help those others do some task for you. You might not understand this other language very well, and some …

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Permanent link to this article: https://blog.simos.info/a-gentle-introduction-to-security-fuzzing-and-the-advanced-fuzzing-league-afl/

timg, a text mode image viewer and video player

Yes, you read it right. timg is a text mode image viewer and can also play videos. But, but, how is that possible? timg uses suitable Unicode characters and also the colour support that is available in many terminal emulators. timg is developed by Henner Zeller, and in 2017 I wrote a blog post about …

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Permanent link to this article: https://blog.simos.info/timg-a-text-mode-image-viewer-and-video-player/

How to setup multiple WordPress sites in LXD containers

My article was recently published on Linode on how to setup many WordPress websites on a single server, and put each website inside LXD containers. By doing so, you can have greater density on your VPS and more value for money. Apart from that, it also has great educational value to go through all the …

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Permanent link to this article: https://blog.simos.info/how-to-setup-multiple-wordpress-sites-in-lxd-containers/

How to compile lxd-p2c to migrate physical servers to LXD containers

The lxd-p2c utility helps you to migrate your physical servers to LXD containers. Dan Mac Donald wrote a tutorial with practical instructions on how to perform such a migration. There has been a recent discussion on compiling lxd-p2c and I am summarizing here. You would run lxd-p2c on a physical server that is to be …

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Permanent link to this article: https://blog.simos.info/how-to-compile-lxd-p2c-to-migrate-physical-servers-to-lxd-containers/