Linux, Networking, Homelab und mehr.
Update Released v75 which adds clipboard history, timers, process search and unit conversion Disclaimer: To be clear, I did not write a single line of code,. If …
Hello everyone. It’s been a while.. again. Did not have anything interesting to write about. But today I have something very cool I want to showcase to …
Hello everyone, today, I want to walk through setting up Yubikey authentication in Fedora GNOME. I recently configured this for my Fedora KDE workstation at …
Hello everyone, this will be a continuation or extension or something similar along those lines :) to the post I made a couple of years ago “ArubaOS-CX …
Hi everyone, I’ve been working at a mid-sized hospital for about a year now, and even though I mainly take care of the infrastructure and security side, …
Hi there, Today, I want to create a domain trust between FreeIPA and Windows Active Directory. This will be, more or less, a continuation of the "Deploying …
(Updated) Change the commands and added a few lines after the comment from Roofi. Hello everyone, a few weeks ago, we needed to upgrade a few Windows Server …
Hello there, today, I want to check out the SureBackup feature provided by Veeam Backup & Replication. This allows us to automatically test and verify our …
Hello everyone, today I plan to set up Windows LAPS on Windows Server 2025 and test it on a Windows 11 client. We will implement this for the new company …
Hello everyone, and happy new year. A bit late but oh well. It’s been a while, but a lot has happened which kept me from posting. Anyway, today I want to …
Hi there, It’s been a while, hasn’t it. Had a few stressful months, but I should be back now. So, to get back into it, I will start with something …
Hi everyone, the old ansible role does not work anymore with the latest version of PiHole. I will leave it, just in case, but below you can find the new role I …
Radius Server Deployment, Integration with FreeIPA, TLS Configuration, CRL Configuration Part 1 Part 2 Part 3 Part 4 Hello there, today we will deploy a radius …
FreeIPA Automount, NFS server configuration and testing, Setting permissions Part 1 Part 2 Part 3 Part 4 Alright, welcome back to part 3 of my “Deploying …
FreeIPA settings for managing clients (Sudo Policies, Host and User certificate, automount) Part 1 Part 2 Part 3 Part 4 Hello there, today we are going through …
Rocky Linux 9 Server Installation, FreeIPA (Identity, Policy Management) deployment, DHCP Installation and Linux Client Domain Join Part 1 Part 2 Part 3 Part 4 …
Deploying and configuring the NPS Server, Setting up Aruba Virtual Controller for Radius authentication Part 1 Part 2 Part 3 Part 4 Hi there, this will probably …
Setting up a Windows Certificate Authority, configuring certificate templates, setting up auto-enroll. Part 1 Part 2 Part 3 Part 4 Hello everyone, we continue …
Configure DHCP Server, User and Group Creation, Group Policies, Setting up a File Server Part 1 Part 2 Part 3 Part 4 Hello there, let’s continue with our …
Windows Server 2022 Installation and Domain Controller Deployment Part 1 Part 2 Part 3 Part 4 Hello everyone, it’s been a while, again. Didn’t have …
Hello everyone. Today I got to play with something very special. A Nimble… I mean Alletra 5000 with 25GbE iSCSI. It’s basically a HPE Nimble with a …
Hello there, it’s been a while. Didn’t really have a topic to write about, but today I have something a bit more fancy… at least for me. In …
Updated: Updated Authentik to 2025.4.0, recreated the screenshots and tested the setup again. Hi there, today will be a short one… I think. I want to …
Hello there, a few days ago, when I was checking my backups on “borgbase.com”, I thought “why does nothing similar to this exist, that I can …
(Update) I added the use of access tokens. Hi there, today I have something pretty cool. NTFY. An HTTP-based notification server, that also has a nice phone …
Computer Template Just a quick one today. I deployed a Windows CA at one of our customers for an Aruba Clearpass deployment. So its main use was to generate …
Update: Forgot to include the Firewall Rule Hello everyone. Today, I want to show you, how to enable RDP on a client with a GPO. I wanted this for a test …
Hello there, Today, I want to write down the steps on how to set up MFA for SSH. I will also configure an exclusion for the internal network, just to showcase …
Hi there, This will be a simple guide on how to deploy CheckMK, a Monitoring System. Nothing to fancy, since I don’t have too much experience myself. I …
Hi there, Today I just want to highlight an application, I found a few days ago. NormCap. A screen-capture OCR tool. Rather than taking screenshots, it uses OCR …
Hi there. Today will be a short one. Recently we replaced our old VMWare cluster with 3 new ProLiant DL325 Gen10 Plus v2 Servers and a MSA2062. This meant that …
Hi, Today, I want to go through the process of finding a physical device in a network if you only have an IP address or a MAC address. This is my way of doing …
Hello there, it’s been a while. Didn’t really have a topic. Today I want to take a look at a simple local deployment of Rocky / Fedora. For this, I …
So, we finally received 2x HPE SN2100M switches for internal use. They will be our new switches for the 3x ProLiant DL325 Gen10 Plus v2 we recently got for our …
In the last few weeks, I have been migrating Sophos SG to Sophos XGS for a lot of customers. One of the more tedious parts is the redeployment of VPN …
Hi there. A few months ago, I started to mainly use “cockpit” for managing my virtual machines rather than “Virtual Machine Manager”. …
Hello there, This will be a rather short one today, since the setup is very straightforward. But, this way I won’t forget the name again, and maybe it …
Hi there, Today, I want to try and go through the deployment of the Headscale control server. This is an open-source implementation of Tailscale, a commercial …
Hello there, Today, I want to set up a simple VXLAN configuration between 2 access switches connected to a VSX cluster. The cluster will be already configured. …
Certificate Installation A quick one today. This is basically the same thing as in the MinIO (Part 2) post. But this way it’s more accessible. How to add …
Part 1 Part 2 This is part 2 of the MinIO setup guide. Today I want to take a look at the configuration of Prometheus, for the MinIO metrics. Never used it …
Part 1 Part 2 Hello there, In the previous post, I mentioned MinIO as an on-premise S3 solution. Today I want to take a look at how to deploy and while at it, …
Hardened Linux Repository Hello there everyone. Today, I want to check out the “Hardened Linux Repository” feature that was introduced in V11 (I …
Hey there. We have a customer who still uses “Sophos Enterprise Console”, an on-premise server for the Endpoint Protection application Sophos …
Hello there. Today, I want to take a look at “NetEdit”. A “visual network editor” for the ArubaOS-CX switches, which can be used free of …
Hello there, Today, I want to take a look at how to set up a Sophos HA Cluster connected to a layer 3 core switching. We will leave the local routing to the …
Hello there, today I want to take a look at the “script-server” by “bugy”. I have been looking for a way to simply execute scripts …
Hi there, a short one today. I an using Fedora with the KDE Plasma spin. For the theme I prefer “lightly”. This has a bug though (at least in my …
Part 1 Part 2 Part 3 Hey there. Let’s go over the Sophos XG HA cluster configuration. This will probably be the last part. If you missed the first two …
Hi there, I received a new laptop last week, replacing my old Lenovo T470. It’s still a great device but started to show its age, primarily the dual-core …
Part 1 Part 2 Part 3 Sophos XGS 2300 and Sophos Firewall base configuration (Part 1) Sophos Firewall SSL VPN / IPSec VPN configuration (Part 2) Sophos Firewall …
Part 1 Part 2 Part 3 Sophos XGS 2300 and Sophos Firewall base configuration (Part 1) Sophos Firewall SSL VPN / IPSec VPN configuration (Part 2) Sophos Firewall …
Hi there, a quick one today. This is nothing new, but I needed it yesterday so decided to write it down. Yesterday I exported a mailbox in Microsoft Exchange to …
Hi there, After quite some time, I finally found a PSU which is very quiet and fits (kind of) into the server case. By mere chance, I found a very small power …
Hello there. We have a customer where the “accidental” deletes and file moves got so out of hand, that I decided to enable the shadow copy service …
Hey there. This will be a very short one. Last week I had to replace a physical server at a small engineering office. This was an old Windows SBS 2011, that was …
I’ve been looking for a new server case for a long time now. Comparing cases like the SilverStone CS380B, the Lian Li PC-Q26 and so on. I even bought a …
Part 1 Part 2 Alright then. Let’s continue with the setup of our FreeIPA client. I won’t go through the OS installation, since it’s a simpler …
Part 1 Part 2 Today I want to take a look at the FreeIPA Server, an integrated Identity and Authentication solution for Linux. Basically something similar to …
Update (23.08.2022): Added ksnip, Ferdium, Signal, Linphone Update (06.06.2024): New Laptop, Added NormCap Hello there, a few days ago I saw a Youtube video …
Hey there. Today I want to tell you about a small issue a colleague of mine encountered with a customer. This is not a large business but the customer works as …
Hi, today I want to go through the configuration of a few Huawei switches. The “CloudEngine S5735”. I have never configured a Huawei switch before, …
(Update) Deletable Attachments It seems like attachments are still deletable and I didn’t find a way to prevent this. Doesn’t seem to be possible. …
Hello there. Today I want to write about a project I had over the weekend (from Friday to Monday). This won’t have much if any, useful technical …
Hey there. This should be a short one. This one might be obvious, but it still took me a bit to figure out. We have a customer who uses Microsoft 365 for the …
Hi there, my colleagues started to deploy a new MSP application, mainly as a ticket system and for endpoint management. The configuration itself is mostly done, …
Hey there. Yesterday during a migration, I had an annoying error. The migration itself went quite smoothly. Now, I am calling it a migration, but the customer …
Hello there. As far as I am aware, there has been support for ansible from the beginning in the ArubaOS-CX switches, but there are not many guides on this …
Hi there. Today I want to take a look, at how to update docker containers using ansible. This is a single home server setup, so no Kubernetes or other …
Take everything you read in this post with a grain of salt. My understanding concerning OSPF is very limited. So there could be some misinformation here. I have …
Hello there. Today I want to take a look at how to resize a virtual machine that uses LVM for its vdisks. As I mentioned in a post before, I am using primarily …
Hello there. This is technically a continuation of the “Aruba 8360 Basic and VSX configuration” post, which is part of a larger project. But I will …
Hello there. I am currently running two home servers with KVM for the virtualization. Mentioned it a few times already. For the vdisks I am using LVM which …
Hi there. I switched from Windows 10 to Fedora Linux (Plasma 5) on my work laptop a couple of months ago and I am quite happy with it so far. There are a few …
Part 1 Part 2 Hey there. This is part 2 of my Aruba 8360 basic and VSX configuration. In this part, I want to go through the VSX and LAG/LACP configuration. I …
Hi, a quick one today. We have a customer with a Sophos XG 230, a lot of Site-2-Site VPNs and different Policy-based routes, mainly for the 3 different ISPs …
Hello there. So Fedora 35 just came out and I want to install my favourite backup application on it. “Veeam Agent for Linux FREE”. We are using …
Hi there. there are a few options to track traffic in Sophos, but none are as in-depth as tcpdump (as far as I am aware at least). The problem here is, that it …
A short one today. In my last post, I mentioned my “home server”. That thing actually does not run 24/7, even though it’s a …
This took me a while to figure out… So I have a “home server”. It is basically a lot of old hardware thrown together with a bunch of hard …
Part 1 Part 2 Hello there. Today I want to go through the basic configuration of an Aruba 8360-32Y4C. Such a beautiful device. Look at it… …
Part 1 Part 2 Installation and configuration of GNS3 GUI Hello there. This is part 2 of my (so far) two-part guide on how to install and configure GNS3 on Linux …
Hey there. This will be a shorter one. A few weeks ago, I had a weird issue with a customer, where two Sophos SG 135 in an active / passive cluster died at the …
Part 1 Part 2 So… I have been using GNS3, to run my Network Simulations for a while now. Mainly to try out and learn new things, but also to test new …
(Update) Small update to this post. I changed the recommendation to the “alternative way”. I think it works much better, since the release of V3. …
Hey there. My Name is Gökhan. I am an IT Administrator / IT Service Provider currently working for a mid-sized company in Germany. As you might have guessed …