“STS Signing Certificates are about to expire”: vCenter STS Certificate Guide (7, 8, 9)
vCenter alarm “STS Signing Certificates are about to expire”? Check the STS certificate, renew it in vSphere Client or vCert, avoid No Healthy Upstream.
Tag: VCSA
lsdoctor: Check and Repair the vCenter Lookup Service (6.7 to 9.x)
Broadcom lsdoctor for vCenter 6.7-9.x: where to download it (KB 320837), how to run it safely, and which option fixes which Lookup Service problem.
Critical Security Alert: Update to Fixed Version 8.0 U3d Immediately
CVE-2024-38812 is a CVSS 9.8 vCenter RCE exploited in the wild. Versions before 8.0 U3d and 7.0 U3t are affected: patch steps with software-packages.
vCenter 8 Session Timeout Settings and the 8.0 U3b vSphere Client Idle Session Bug (Fixed in 8.0 U3c)
How to set the vSphere Client session timeout in vCenter 8.0 and 9.x, and why sessions broke after 50 idle minutes on 8.0 U3b until the 8.0 U3c fix.
vSphere Client Instability After vCenter 8.0.3.00200 (8.0 U3b): Moved
This note moved. The full article covers the vCenter 8.0 U3b idle session bug, KB 377734, the 8.0 U3c fix and vCenter session timeout settings.
VMSA-2024-0019: Critical VMware vCenter Server Vulnerabilities (CVE-2024-38812, CVE-2024-38813) Addressed
VMSA-2024-0019 covers vCenter heap-overflow CVE-2024-38812 and privilege escalation CVE-2024-38813. Affected versions and fixed builds (8.0 U3d, 7.0 U3t).
vmss2core: Where to Download It and How to Convert VM Snapshots (.vmsn/.vmss + .vmem) into Windows and Linux Memory Dumps
vmss2core in 2026: where to download it, which .vmsn/.vmss/.vmem files it needs, -W/-W8/-N commands, WinDbg analysis and common errors.
How to Rebuild a VMX File from vmware.log on an ESXi 8 Host via SSH
Lost or corrupted .vmx? Rebuild it from vmware.log on ESXi 8 with a short shell script over SSH (KB 1023880), including the #!/bin/ash fix for ESXi 8.
vCenter Server 8.0 U2 Issue with Edit Settings Virtual Machine Hardware 9 or older
vCenter 8.0 U2 can't edit settings of powered-on VMs with virtual hardware 9 or older in the vSphere Client. Symptoms, workarounds and resolution.
Cisco UCS Manager Plugin for vSphere: Remote Plugin 4.0(0) and 4.0(1) for vCenter 8.0 U2, 8.0 U3 and 9.0
Cisco UCS Manager remote plugin for the vSphere HTML client: 4.0(0) vs 4.0(1), supported vCenter 7.0 U1 to 9.0, appliance sizing, install and Proactive HA.