dt.iki.fi

Sailfish OS - Command Line Interface & Customisation

dt.iki.fi — Wed, 04 Mar 2026 00:00:00 +0200

Edits to already existing files in system directories could be overwritten by updates. Right now this is only the case for the pulseaudio tweaks below.
To …

Firewall for SFOS AppSupport Applications

dt.iki.fi — Fri, 27 Feb 2026 00:00:00 +0200

Android’s security model uses one user ID for each application. This makes it easy to create iptable rules to block network access of some apps.

However, I prefer a …

Hosts-based Ad Blocking on Sailfish OS

dt.iki.fi — Fri, 27 Feb 2026 00:00:00 +0200

To be found here (it’s high time I moved this to its own repository).

Primer

After installation the script runs immediately, and then updates every week (configurable).

Making sshd more secure on Sailfish OS

dt.iki.fi — Fri, 27 Feb 2026 00:00:00 +0200

This article deals with making SSH access more secure on your SFOS phone, after initial SSH setup.

Please read the chapter SSH on SFOS first.

All Linux users & admins highly …

Sailfish OS - Install yt-dlp

dt.iki.fi — Thu, 26 Feb 2026 00:00:00 +0200

This article has a parent article. It contains some preliminaries to the topics here.
Also this article might be helpful.

yt-dlp¹ is an extremely vesatile utility that can download …

Initramfs: mount encrypted partitions non-interactively

dt.iki.fi — Thu, 19 Feb 2026 00:00:00 +0200

During installation of Debian stable I opted to encrypt everything.

This includes GRUB asking for a password to unlock itself & the / partition during early boot.

Then I get asked again …

Dreams

dt.iki.fi — Sat, 30 Aug 2025 00:00:00 +0300

I dreamt that a woman with a child brought me to Libya in her small rickety car. It is unclear if she did it on purpose, i.e. abducted me …

Sailfish OS - Back Up & Restore Home Folder

dt.iki.fi — Tue, 01 Jul 2025 00:00:00 +0300

I broke my phone again. Damn slippery things. The screen is completely broken. Fortunately, I did a full backup of the complete /home partition the same day, and I had …

Add shell customisations for all users

dt.iki.fi — Mon, 30 Jun 2025 00:00:00 +0300

To add shell customisations for all users, add a file to /etc/profile.d - I named it zzz.sh in the hope it will be sourced last and override some …

Sudo on Sailfish OS

dt.iki.fi — Mon, 30 Jun 2025 00:00:00 +0300

Use devel-su one last time for the following steps:

And add the line

[If you prefer to use nano for editing, set the EDITOR environment variable accordingly.]

Change default UI fonts on Sailfish OS

dt.iki.fi — Sun, 22 Jun 2025 00:00:00 +0300

As outlined here.

First move aside whatever there is in ~/.config/fontconfig and ~/.local/share/fonts (although these do not exist by default in SFOS). Then:

This does two things …

How to run multiple commands on a remote server via SSH

dt.iki.fi — Sun, 22 Jun 2025 00:00:00 +0300

SSH automatically opens a shell on the host. It is easy to run a simple command and get the output and its return value. But what if your command contains …