Usually there’s no reason to get worried if you forget the password for an online service that you’re using. Platform providers are aware of their forgetful users and provide a simple method to reset your password and regain access to your account. All you need to do is to enter your email address and wait for a customized link. That link lets you change your password or request a new one.
Yesterday I moved my old Prosody setup to a new Ejabberd-based XMPP server setup. I’d like to leave you a few notes on why and how I did that.
By default LXD creates an internal network bridge called
lxdbr0 which new containers are attached to (a network bridge in Linux is similar to a physical LAN switch). That way containers can talk to each other on the same network. Even the LXD host is connected to the same bridge. To make a service in a container reachable from the outside world, a proxy is used in most cases, e.g. Nginx for web services and HAProxy for any other services.
But what if you cannot or do not like to connect a service via a proxy? No problem! LXD can not only make use of a “host internal” network bridge, but any network bridge on your system. So let’s set up a network bridge that is linked to a public interface! The container’s network configuration will be similar to the one on your container host. A public IP address can be used directly.
I’ve been using Restic backup on several servers for more than a year now. As the software turned out to be very reliable and fast I decided to give it a try on my laptop. Until now I had to trigger my backup mechanism by hand every day, but as you can image this is not a very reliable way to make backups.
Today I looked for a way to automate Restic backups on my laptop while keeping the mechanism easy and inconspicuous. In this post I’d like to introduce you to my personal backup solution.
As you might know, I’m running metalhead.club, a Mastodon instance for metalheads. Due to the increasing storage and computing demand (and because I wanted to drop my old host) I decided to move the instance to my new, more powerful host. Luckily I’ve packed the whole instance and all its dependencies into a LXC container (with LXD as container manager) a couple of months ago. Usually you would restore your Ruby / NodeJS environment on your new host, transfer database and application files as well as media files and make sure everything fits. In my case it was basically just a file system transfer and re-import on the new LXD host: Much easier and less error prone.
In this post I’ll show you the exact steps how I moved my Mastodon instance yesterday.