HOW TO: Fix VMware vCenter 7.0 Resolving the HTTP 500 Internal Server Error in HA Mode

1. Reset the root lockout

use the command

pam_tally2 -–user=root --reset

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2. Check /storage on vCenter Server appliance

use the command

df -h 

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to check if /storage is above 95%

3. Check certificates

use the following min-script to check if certificates have expired

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;

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Go to Step 7, if you are running vCenter Server HA, you got some more configuration to go throw, so go to step 8.

4. Check vCenter Server build version

use the command

vpxd -v

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5. Check vCenter Server uptime

use the command

uptime

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6. Check vCenter Server services

use the command

service-control --status --all

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7. if you find you have expired certificates from

use the command

/usr/lib/vmware-vmca/bin/certificate-manager 

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Select option 8.

8. if using vCenter Server HA you will need to destroy the cluster

use the command

 vcha-reset-primary 

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 vcha-destroy -f

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9. forgotten Administrator@vsphere.local password ?

use the command

 /usr/lib/vmware-vmdir/bin/vdcadmintool 

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