A complete guide to installing OpenCloud 6.0 as a bare metal deployment inside a Debian 13 (Trixie) Incus container, compiled from source with libvips support for full image thumbnail generation including WebP, HEIC, and other modern formats. Why Bare Metal Instead of Docker? OpenCloud officially promotes Docker Compose for production deployments. Their own documentation includes…
This guide walks you through setting up a complete Web Application Firewall (WAF) using CrowdSec, Nginx, and nftables inside an Incus container. The container acts as a reverse proxy protecting your backend applications with both layer 3 (network) and layer 7 (application) security. A key feature of this setup is the centralised CrowdSec LAPI (Local…
During a routine log review on one of my Postfix/Dovecot mail servers, I noticed a pattern of SMTP send failures in the Roundcube webmail logs. The errors were intermittent, affecting messages with larger attachments, and had been occurring for about a day before I spotted them. What followed was a debugging session that traced the…
If you run LXD via snap on Ubuntu and use ZFS as your storage backend, chances are you have encountered this frustrating error at least once: The container refuses to start, your workload is stuck, and the error message is not exactly self-explanatory. Let’s break down what is happening and how to fix it permanently….
The past year has been eventful for anyone following the relationship between European regulators and American technology companies. Visa bans on former EU officials, tariff threats tied to tech regulation, US diplomats lobbying European capitals against the Digital Services Act. The headlines have been hard to miss. But this article isn’t about politics. It’s about…
Part 6 of the Building a Modern Mail Server on Debian 13 series Series Navigation: Introduction In this final chapter of our mail server series, we’ll set up Roundcube webmail on a separate Incus container. This architecture provides several advantages: Our setup assumes: Architecture Overview In this guide, the Roundcube container can be on: Prerequisites…
Part 5 of the Building a Modern Mail Server on Debian 13 series Series Navigation: Introduction Part 4 established a production-ready mail server with Hall of Fame security status on internet.nl and excellent spam filtering through Rspamd. You now have: This is already a production-ready mail server suitable for most organizations. Part 5 is optional…
Part 4 of the Building a Modern Mail Server on Debian 13 series Series Navigation: Introduction The previous guides in this series established the foundation for a production mail server. Part 2 covered the core mail infrastructure with Postfix, Dovecot 2.4, MariaDB, and PostfixAdmin for web-based management. Part 3 added CrowdSec intrusion detection to protect…
When upgrading Matomo to version 5.6.1 via the web interface, the process fails if Composer is missing. Installing Composer and switching to CLI (console core:update) then triggers fatal PHP errors like Class ‘Piwik\Plugin\Manager’ not found in core/bootstrap.php:59. This happened to me on a production server with PHP 8.1. Symptoms and Root Cause Web upgrade to 5.6.1…
Part 3 of the Building a Modern Mail Server on Debian 13 series Series Navigation: Introduction CrowdSec is a modern, collaborative intrusion prevention system (IPS) that protects your mail server from brute-force attacks, spam, and abuse. Unlike traditional tools like Fail2ban, CrowdSec: This guide provides battle-tested configurations based on real-world deployment and attack patterns. What…
| Cookie | Duration | Description |
|---|---|---|
| cookielawinfo-checkbox-analytics | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics". |
| cookielawinfo-checkbox-functional | 11 months | The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". |
| cookielawinfo-checkbox-necessary | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". |
| cookielawinfo-checkbox-others | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. |
| cookielawinfo-checkbox-performance | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance". |
| viewed_cookie_policy | 11 months | The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data. |