DevOps

May 1, 2025
How to enable/disable DKIM signing for all domains in Plesk for Linux
Published by Admin on May 1, 2025
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Enable DKIM and Email service on all domains plesk

Enabling DKIM for all domains in Plesk boosts email deliverability and protects against spoofing. This article shows how to activate DKIM via CLI using a simple one-liner script, explains how to verify it, and includes tips for syncing DNS records if you're using external nameservers like Cloudflare
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April 23, 2025
Published by Admin on April 23, 2025
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Wie fügt man eine zusätzliche IP-Adresse bei Netcup auf einem Debian-Server hinzu?

Adding an extra IP address on a Netcup Debian server requires manual network configuration. This tutorial walks you through identifying your main interface, editing the appropriate config file (like /etc/network/interfaces), and restarting networking services. It's a step-by-step guide tailored for Netcup’s virtual servers and Debian-based systems.
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April 15, 2025
Solving Cross-Subnet VM Communication in Hetzner
Published by Admin on April 15, 2025
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Solving Cross-Subnet VM Communication in Hetzner

VMs on different Hetzner subnets often fail to communicate due to missing routes or asymmetric routing. This guide covers diagnosing one-way ping issues, using ip rule, ip route, and iptables on the host node, and configuring static routes on guest VMs to restore full cross-subnet communication between bridges.
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