A comparison between browser features on desktop and mobile iOS

I am a long time user of Firefox and Chrome on desktops (GNU/Linux and macOS), while I rely on Chrome on my iOS devices. Recently there has been some valid critics of Chrome and its privacy choices and I began to look around for an alternative of Chrome. I identified a list of features that … Continue reading A comparison between browser features on desktop and mobile iOS

Linux: using bind mount to move a subset of root subdirectories to another partion or disk

I was in the situation dealing with a Linux box with two hard disks: /dev/sda: fast hard drive (SSD), small size (~200 GB) /dev/sdb: very big hard drive (HDD), large size (~4 TB) The operating system was installed on /dev/sda, so I had /dev/sdb empty. I knew I could create a mountpoint (e.g. /storage) and … Continue reading Linux: using bind mount to move a subset of root subdirectories to another partion or disk

Preventing Docker from manipulating iptables rules

By default, Docker manipulates iptables rules to provide network isolation: Chain FORWARD (policy DROP) target prot opt source destination DOCKER all — 0.0.0.0/0 0.0.0.0/0 […] Chain DOCKER (1 references) target prot opt source destination I don’t mind having my iptables rules for forwarding manipulated, but there is a caveat: when you expose a container (with … Continue reading Preventing Docker from manipulating iptables rules

Automatically add SSH keys to SSH agent with GNOME and macOS

I am using passwordless login via SSH on every box that I administer. Of course, my private SSH key is protected with a password that must be provided when accessing the key. Modern operating systems incorporate the usage of ssh-agent to “link” the user account to the SSH key(s), in order to unlock the SSH … Continue reading Automatically add SSH keys to SSH agent with GNOME and macOS

Accessing remote libvirt on a non-standard SSH port via virt-manager

Scenario: you are using a remote host as a virtualization host with libvirt and you want to manage it via ”Virtual machine manager” (virt-manager) over SSH. But SSH is listening on a non-standard port, and virt-manager does not offer you to connect to a remote libvirt instance on a non-standard port. Fear not, the option … Continue reading Accessing remote libvirt on a non-standard SSH port via virt-manager

Replacing Xmarks cross-browser sync service with Eversync

I have a huge collection of bookmarks I collected over the years and I always have had the need to sync my bookmarks between my browsers of choice; Xmarks has always been one of the browser extensions I used for this need. Unfortunately, Xmarks is shutting down on May 1, 2018. I looked for some alternatives, like: … Continue reading Replacing Xmarks cross-browser sync service with Eversync

Automatically update your Docker base images with watchtower

I’m an avid user of Docker containers, using base images pulled from the public registry DockedHub. As you may know, Docker containers are based on Docked base images, e.g. I run postgres containers that are based on Postgres base image. It occurs that base images could get updated by their respective author (in our case Postgres team) and pushed to DockerHub. … Continue reading Automatically update your Docker base images with watchtower

Incubo PuntoCom Shop: NON acquistate su questo sito!

Recentemente ho acquistato un iPhone 8 sul sito PuntoCom Shop (linkato in nofollow). Dopo una settimana dall’acquisto, il telefono ha presentato un difetto con la fotocamera, scattando foto con un alone rosa; il difetto è conosciuto da Apple, tant’è che non sono l’unico ad essere stato vittima di questo difetto hardware Apple. Recandomi in un … Continue reading Incubo PuntoCom Shop: NON acquistate su questo sito!

Reverse engineer a Docker run command from an existing container

During my usual backup routine, I wanted to gather how a Docker container I started a while ago was run, especially the docker run command; this is required in case I need to re-run that container and I want to preserve the options (e.g. env variables, ports, etc.). Let’s make an example. I run a … Continue reading Reverse engineer a Docker run command from an existing container

Docker and containerd on openSUSE: reaching the limit for cgroup (and how to overcome it!)

I recently encountered a limitation during an experiment I was conducting; after some trial and error, I recognized that the limitation was due to cgroups. But let’s start from the beginning. I open sourced docker-salt, a small pet project I had in mind in order to have a full blown setup for SaltStack: a master … Continue reading Docker and containerd on openSUSE: reaching the limit for cgroup (and how to overcome it!)