vCenter "HTTP Status 500 – Internal Server Error"CHECK SSL CERTIFICATES IN VCENTER SERVER
https://kb.vmware.com/s/article/2015600
Run the following to check the certificates in vCenter:
for store in $(/usr/lib/vmware-vmafd/bin/vecs-cli store list | grep -v TRUSTED_ROOT_CRLS); do echo "[*] Store :" $store; /usr/lib/vmware-vmafd/bin/vecs-cli entry list --store $store --text | grep -ie "Alias" -ie "Not After";done;
Here is the result:
[*] Store : MACHINE_SSL_CERT
Alias : __MACHINE_CERT
Not After : Jul 30 04:55:53 2022 GMT
[*] Store : TRUSTED_ROOTS
Alias : 1de53225634a45f52840baf7b4a8e7dd6f8f1493
Not After : Jul 24 16:55:52 2030 GMT
[*] Store : machine
Alias : machine
Not After : Jul 24 16:55:52 2030 GMT
[*] Store : vsphere-webclient
Alias : vsphere-webclient
Not After : Jul 24 16:55:52 2030 GMT
[*] Store : vpxd
Alias : vpxd
Not After : Jul 24 16:55:52 2030 GMT
[*] Store : vpxd-extension
Alias : vpxd-extension
Not After : Jul 24 16:55:52 2030 GMT
[*] Store : hvc
Alias : hvc
Not After : Jul 24 16:55:52 2030 GMT
[*] Store : data-encipherment
Alias : data-encipherment
Not After : Jul 24 16:55:52 2030 GMT
[*] Store : APPLMGMT_PASSWORD
Alias : location_password_default
[*] Store : SMS
Alias : sms_self_signed
Not After : Jul 29 17:00:11 2030 GMT
[*] Store : wcp
Alias : wcp
Not After : Jul 24 16:55:52 2030 GMT
===================================================
CHECK STS CERTIFICATES IN VCENTER SERVER
https://kb.vmware.com/s/article/79248
-download checksts.py
-python checksts.py
STS certs are valid for 2910 days.
No expired certs.
=====================================================
From the info above; __MACHINE_CERT is expired.
https://kb.vmware.com/s/article/82332
https://kb.vmware.com/s/article/2097936
-shutdown vCenter in the ESXi interface.
-take offline snapshot.
-verify the snapshot is complete.
-start the vCenter vm.
-/usr/lib/vmware-vmca/bin/certificate-manager
-press 3
-ran through defaults using the ip address as the hostname and vCENTER as VMCA name.
-wait 15 minutes.
-try vCenter web ui again.