A nice feature with QSFP (Quad Small Form-factor Pluggable) is that you can turn a single QSFP port into 2 or 4 independent ports using a breakout cable. In my home lab, I have an Nvidia/Mellanox SN2100 switch running Onyx (MLNX-OS), which I use for my iSCSI network. I also have an HPE MSA 2040…
With the upcoming retirement of the MSOnline PowerShell module, Microsoft created a new version of Azure AD Connect, which is now rebranded as Entra Connect Sync. In this post, I will show step-by-step how to manually upgrade Microsoft Azure AD Connect to Microsoft Entra Connect Sync. Prerequisites TLS 1.2 With the new version of Microsoft…
Cisco UCS can sometimes trigger a false positive alert of FFCH_ERROR_CARDS_ACCESS_ERROR on the FlexFlash controller, which typically has the fault ID of F1262. Depending on your setup, you should investigate the alarm appropriately. If, after your investigation, you determine that the fault is a false positive, the first step is to reset the FlexFlash controller.…
VMware vCenter can be a key provider, which is perfect for using a vTPM (Virtual Trusted Platform Module). With VMware vSphere, you can configure a native key provider that VMware vCenter fully manages. No external key provider is needed. The native key can even be used to encrypt your VMs. In this post, I will…
With Windows Server 2025, Microsoft is more in your face about sending your diagnostic data to them. I am okay with sending them the data if it helps make their products better. What I have a problem with is that the send diagnostic data to Microsoft screen is displayed on every first logon on each…
At the very core of Omnissa Horizon is an ADAM (Active Directory Application Mode) LDAP (Lightweight Directory Access Protocol) database. Even though Horizon servers are typically domain-joined, they still maintain their own ADAM LDAP database for all the configurations in Horizon. It’s a good idea to back up the ADAM LDAP database as it can…
Nginx Proxy Manager (NPM) is an open-source Docker image that lets you run a reverse proxy and can even handle SSL certificates for you using Let’s Encrypt. It’s great when you can’t use a Cloudflare Tunnel or an Entra App Proxy. I’ve been using Nginx Proxy Manager for a while now, and it’s been perfect…
Debian is a solid Linux distribution I’ve been using for a while. It is my default Linux OS of choice. Many popular Linux distros are actually based on Debian, such as Ubuntu, Proxmox, Kali Linux, TrueNAS SCALE, SONiC, Raspberry Pi OS, SteamOS and many more. In this post, I will show you step-by-step how to…
An issue I’ve run into on Palo Alto Networks firewalls is that everything seems to work when importing a certificate (usually a PFX). Until you start using the certificate, then after a validation or a commit, there’s a warning that the certificate chain is not correctly formed. Warning: certificate chain not correctly formed in certificate…
Sometimes, you have a certificate in PEM format as a CRT file (also called a CER file) with a key file (also called a PEM file), and you need to combine and convert them into a PFX certificate. In this post, I will show you step-by-step how to convert a PEM certificate into a PFX…
