Sascha Jelinek

quick problem solving through many years of experience
Bookstack Instructions and Commands

BookStack Updates – Instructions and Commands

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Keeping BookStack up-to-date is essential for security and stability. The latest version is always available on Codeberg, with detailed release notes published on the official BookStack blog. Before any update, always back up your database and file uploads – there is dedicated documentation explaining the backup process. Update-Befehle einzeln In the BookStack installation directory (e.g. /var/www/bookstack), run these commands one by one: Update repository Install dependencies Migrate the database All-in-one …

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opnsense vpn

OPNsense VPN: 1:1 NAT as a Solution for Overlapping Networks

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When companies use OPNsense or similar solutions as a firewall and OpenVPN for remote access, they often encounter a common issue: the internal company network uses the same subnet as the employees’ home networks-for example, the widely used 192.168.178.0/24 subnet found on many FritzBox routers. In this scenario, the VPN client cannot reach the company servers because the packets get “stuck” in the home network and do not pass through …

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checkmk

Checkmk Distributed Monitoring: efficient monitoring across multiple locations

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In the modern IT world, companies face the challenge of efficiently monitoring their distributed and complex networks. Checkmk offers a powerful solution with its Distributed Monitoring, combining efficiency, scalability, and flexibility. What is Checkmk Distributed Monitoring? Checkmk Distributed Monitoring allows monitoring tasks to be distributed across multiple instances. This architecture makes monitoring manageable even in complex environments. Technical advantages of Checkmk Distributed Monitoring 1. Scalability and …

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