fires – David Stein

Connecting Offices: A Step-by-Step Guide to MikroTik Site-to-Site WireGuard

fires — Wed, 07 Jan 2026 11:12:08 +0000

WireGuard has revolutionized the way we think about VPNs. It’s faster than OpenVPN, leaner than IPsec, and significantly easier to configure. If you are running MikroTik hardware (RouterOS v7+), setting up a secure tunnel between two locations is now a 10-minute task. In this guide, we’ll walk through connecting Site A (Headquarters) to Site B (Branch Office).

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PPPoE: The ISP’s Choice for Client Connections (and How to Set it Up)

fires — Fri, 02 Jan 2026 11:18:55 +0000

For Internet Service Providers (ISPs), managing thousands or even millions of client connections requires a robust and scalable solution. While simpler methods exist, many ISPs still rely on PPPoE (Point-to-Point Protocol over Ethernet) for its excellent control, billing integration, and session management capabilities. From an ISP’s perspective, PPPoE offers: This post will guide…

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NK2 – migration of contact suggestion in Outlook

fires — Mon, 10 Nov 2025 12:12:22 +0000

Before uninstall open the current nk2 file with https://www.nirsoft.net/utils/outlook_nk2_edit.html, Create the backup (save as) of nk2 file. When you upgrade to Outlook 2010, Outlook 2013, or Outlook 2016, the nk2 file is automatically imported the first time you start Outlook, but sometimes it do not work. When you create a new Outlook mail profile or use Outlook on a new computer…

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ISP Config – mTLS – website certificate protection

fires — Mon, 15 Sep 2025 15:17:44 +0000

This solution uses Let’s Encrypt as the certificate provider for the website and custom certificates for mTLS authentication. Connect to the ISP Config server and prepare certificates After export, you need to import the certificate into your OS system. Depends where you generate certificates, for me as an example (replace [value] with your value)…

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Mikrotik – quick OpenVPN setup

fires — Wed, 03 Sep 2025 08:36:33 +0000

In this post, you will find the basic commands to set up OpenVPN on a Mikrotik router. Find the openssl.exe, standard location is C:\Program Files\openvpn\

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Kerio API – PHP get users mailboxes,sizes and quotas

fires — Fri, 08 Aug 2025 09:13:53 +0000

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Project – FiresSMS – Dockerized sending SMS by GSM modem

fires — Sat, 26 Jul 2025 20:33:56 +0000

https://github.com/Fires04/FiresSMS FireSMS is a Dockerized SMS Gateway built using Gammu SMSD and a custom API interface. It allows sending and receiving SMS messages using a GSM/USB modem connected to your server. FiresSMS is ideal for IoT devices, alerting systems, or SMS-based applications. Edit the configuration files under configs/

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Zabbix – usefull tips and commands

fires — Sun, 20 Jul 2025 12:54:12 +0000

If you need to test the Zabbix notification or response for specific alert severity, here is a little walkthrough on how you can do it easy way. First, create the new host in Zabbix web interface. Fill only the hostname. Then, create a new item under the newly created host. Fill the name, as the type select Zabbix trapper and as key for example test.alert. Next step is to create a…

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TL;DR – Zabbix docker compose upgrade

fires — Sun, 20 Jul 2025 12:11:01 +0000

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Migrate Microsoft domain controller (DC)

fires — Mon, 16 Jun 2025 13:19:24 +0000

Upgrading your Active Directory infrastructure isn’t a trivial task—but by following Microsoft’s recommended approach, you can migrate Domain Controllers (DCs) smoothly and securely. Here’s a clean, step-by-step guide to help you transition from Windows Server 2012 R2 DCs to fresh 2019 servers with minimal downtime. After installing the AD DS server role…

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