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Category: Homelab

Encrypting Zabbix Server communication with Agents using Pre-Shared Keys

Posted on December 30, 2022December 30, 2024 by Thiago Crepaldi

If you have deployed Zabbix Server on your Proxmox infra structure, you might be interested in hardening Zabbix installation with SSL certificates for the web frontend. You might also be interested in encrypting communication between Zabbix Server and the other Zabbix components, such as Agents and Proxies, after all, although it is just monitoring information,…

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Hardening Zabbix Server installation using Apache VirtualHosts and Let’s Encrypt certificates

Posted on December 30, 2022December 30, 2024 by Thiago Crepaldi

In my previous post, we went through the process of installing Zabbix Server on a Debian LXC container. Although it works alright, it doesn’t come with HTTPS support out of the box. It also has an “ugly” /zabbix in the end of the URL. In this short post, we are going through the steps of…

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Monitoring IT infrastructure with Zabbix server running on a Proxmox LXC container

Posted on December 30, 2022December 30, 2024 by Thiago Crepaldi

After some time we accumulating VMs, containers, physical devices and keeping track of what is working as it should or not start to get challenging. Not rarely we start adding a bunch of homemade scripts to warns when some service dies, creating a management nightmare. This is where Zabbix comes to the rescue! According to…

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Deploying a public Vaultwarden instance on a Proxmox LXC container using HAProxy on pfSense

Posted on December 27, 2022December 30, 2024 by Thiago Crepaldi

In crazy times as today’s, having strong and unique passwords are a must to handle threats from Internet. However, keeping track of such passwords is very hard, and this is where password managers come in. There are several password managers out there, but I really enjoy Bitwarden. If you don’t know them, I urge you…

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Configuring E-mail client with Postfix on your Linux Ubuntu

Posted on December 24, 2022December 30, 2024 by Thiago Crepaldi

Everytime we spawn a new server, it is a good idea to enable email services on it so that they can a means to reach us and notify of important events, such as software or hardware failures. In this post we are going to enable configure E-mail on Linux distros using postfix. I will use…

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Setting up Intel GPU passthrough on Proxmox LXC containers

Posted on December 23, 2022December 30, 2024 by Thiago Crepaldi

If you are a Proxmox Virtual Environment (aka PVE) user, chances are that you probably have a few LXC containers running on server. If that is indeed your case and you are interested in leveraging GPU hardware in them, this is for you! In this post, we are going to setup Intel GPU passthrough on…

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Accessing ISP equipment/Modem from local network

Posted on December 16, 2022December 16, 2022 by Thiago Crepaldi

Most Internet Service Providers (ISP) install devices in our houses, such as a cable/DSL modems or a ONT/ONU for optical, which have a web interfaces on a private IP address of its own. Since the device is not connected to any port of your local network switch, and therefore, sit outside your your network, accessing…

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Setting up VPN client on your pfSense using Private Internet Access (PIA) service with Kill switch

Posted on December 12, 2022December 30, 2024 by Thiago Crepaldi

Private Internet Access (aka PIA) provides a cheap VPN service that allows up to 10 simultaneous devices. Recently I have switched from Surfshark to PIA because although Surfshark allows unlimited devices, having multiple connections in the same device (pfSense router) doesn’t always work. The reason is that different connections to different countries can have the…

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How to host multiple domains using HAProxy as reverse proxy on pfSense

Posted on October 17, 2022December 30, 2024 by Thiago Crepaldi

In previous posts it was discussed how to create a DMZ network and host a website from a isolated VLAN on your network. That is a powerful resource, but with the limitation of not being possible to use a friendly FQDN such as geekistheway.com or mydomain.com as the frontend for the websites. This post will…

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How to create a DMZ network using VLANs on pfSense

Posted on October 16, 2022October 17, 2022 by Thiago Crepaldi

DMZ (aka Demilitarized Zone) network as defined by Wikipedia “is a physical or logical subnetwork that contains and exposes an organization’s external-facing services to an untrusted, usually larger, network such as the Internet”. The purpose is to add an additional layer of security by separating what is exposed a public service in the DMZ, while the rest of…

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