VMware Cloud Foundation, application Virtual…
I know with VCF Application Virtual Networks (AVNs) can be a bit confusing. What do they do? Why do I need them? All these questions will be answered in this video.
Daniel Micanek virtual Blog – Like normal Dan, but virtual.
I know with VCF Application Virtual Networks (AVNs) can be a bit confusing. What do they do? Why do I need them? All these questions will be answered in this video.
I had a great time attending the inaugural VMUG Connect 2025 in St. Louis this past April. Like many others, the event was a great way to connect and share our passion for VMware technologies with both new and familiar faces from our community. Here are a few great write-ups from attendees of […]
vCert is a powerful certificate management utility developed for VMware Cloud Foundation environments. It allows administrators to inspect, manage, and replace certificates across the vCenter Server infrastructure with minimal effort. This article walks you through the installation and usage of the vCert v6.0.0 tool.
To begin, download the vCert tool archive provided in the related article and upload it to your vCenter Server appliance. Once uploaded, execute the following commands to extract and run the tool:
# unzip -q vCert-6.0.0-20250218.zip
# cd vCert-6.0.0-20250218
# chmod +x vCert
# ./vCert.py
To display help options:
# ./vCert.py --help
Arguments available:
--env ENVIRONMENT
: Load environment config file--run OPERATION
: Execute operation without menu--user USER
: Provide SSO administrator username--password PASSWORD
: Provide corresponding passwordOnce launched interactively, you’ll see a menu:
VCF Certificate Management Utility (version 6.0.0)
-----------------------------------------------------------------
1. Check current certificate status
2. View certificate info
3. Manage certificates
4. Manage SSL trust anchors
5. Check configurations
6. Reset all certificates with VMCA-signed certificates
7. ESXi certificate operations
8. Restart services
9. Generate certificate report
E. Exit
/var/log/vmware/vCert/vCert.log
/root/vCert-master/YYYYMMDD
Temporary files (except backups) are deleted on exit.
Performs a comprehensive health check:
Displays readable info for:
Replace or modify certificates for:
Supports PEM/DER, PKCS#7, and PKCS#12 formats.
💡 Certificate chains must be complete when importing custom CA-signed certificates.
Includes:
Resets:
Manage ESXi host certificates:
rui.crt
, rui.key
, castore.pem
)🔁 Requires host service restart & vCenter re-connection.
Options:
Outputs a detailed report covering:
Saved under: /var/log/vmware/vCert
The vCert 6.0.0 tool is an essential utility for environments where certificate lifecycle management is critical. Whether you’re replacing a Machine SSL cert, troubleshooting expired STS tokens, or ensuring trust between vCenter and ESXi hosts, vCert provides a safe and guided workflow.
Remember: always use with caution and ensure full system backups are in place before making change
Link for use Manage Certificates menu to check and replace the certificates.
Not sure when it happened, but I have been binging self-hosted identity providers like Netflix shows, this season features Authentik, KeyCloak, Synology SSO and Pocket ID. To add to my collection, I was recently asked whether Zitadel could also work as an identity provider with vCenter Server […]
This is part 2 of the 2 part series. we will do a deep dive into the packet flow of the VM to the Deployed edge VPN .. Not sure what a Layer 2 VPN is? Or how to stretch your NSX Overlay Segments to a VLAN backed segment. Well this is the video for you.
A longtime community favorite, the USB Network Native Driver for ESXi Fling makes it super easy for users to expand additional networking capabilities for ESXi-x86. While helping a customer recently, I realized that we did not have a published list of supported USB Network adaptors (VID/DID) […]