Ejabberd has supported STUN/TURN for quite some time now, this in conjunction with client support can be used to implement one on one audio and video calls. Since version 2.8.0 Conversations Android client added audio and video call functionality by leveraging on STUN/TURN and XEP-0215. The rest of the XMPP world is following the route opened by them, so I expect to see IOS and regular computer XMPP clients to finally implement these new features too in the upcoming months. …

After upgrading my OpenVPN server to CentOS 7.5 I had trouble connecting to it. Specifically, I had two different issues: ** the laptop, which is running Fedora 28, was able to connect just fine but DNS resolution was broken. ** OpenVPN for Android was also connecting just fine but reporting a weird error: OpenVPN: tun tap invalid argument (code=22). The first one was caused by me because after the CentOS upgrade procedure was completed I also run yum autoremove which deleted dnsmasq; the solution was fairly simple, reinstall and reconfigure dnsmasq. …

Configuring this piece of poorly documented bloated shit Mozilla came up with was a huge pain in the ass, so excuse the colored language but I am fucking pissed. The idea was to finally implement a system to synchronize Firefox’s bookmarks across multiple devices without giving Mozilla all my personal data. After some minutes spent researching the subject on the interweb I found out the synchronization system is a huge clusterfuck comprised of multiple components: …

Android community is one big cancerous clusterfuck, it is no wonder that finding a decent guide on how to compile Android from source written in a somewhat comprehensible english is pretty much mission impossible. Cyanogenmod Inc. shutting down their wiki and services overnight surely didn’t help either. Required packages on Fedora 25 are (rpmfusion repo must be previously installed): $ sudo dnf install screen java-1.8.0-openjdk-devel git schedtool ncurses-devel ncurses-libs ncurses-compat-libs ImageMagick-devel libstdc++-devel bison gnupg lzma For some reason the compilation process stores some temporary files in /tmp which, in Fedora 25, is mounted on a tmpfs ramdisk. …

Android stores application’s data in /data/data directory, it can be accessed via adb only on a rooted phone. To make a backup copy the correspondent directory: $ adb root $ adb pull /data/data/eu.siacs.conversations Application’s data can also be extracted from a full system backup made with TWRP: $ tar -xvf data.ext4.win000 Restoring the backup is the tricky part since Android uses SELinux and every app has it’s own unix user. …

Two weeks ago while wasting time on the interwebs I found by accident a couple of OnePlus One invites. To be honest I wasn’t planning on buying a new phone since my previous Nexus 4 is still serving me well but seeing OPO price (299 € for the 64 GB one) and specs I said: well, fuck it. So far I like it very much, the bigger screen makes general usage more enjoyable and battery life is significantly better than Nexus 4, it lasts 2 days without many problems. …

Ok, I know I fucked up, I know everyone who knows me just a little bit would never expect this, but I got my first mobile phone or, like they call them nowadays: a smartphone. I don’t like the smartphone buzzword since I think the only smart ones here are the guys who are able to sell this stuff for hundreds of bucks to billions of people, so I’ll stick with the old and almost forgotten mobile phone name. …