Windows Server 2019, The product key you entered didn't work. Check the product key and try again, or enter a different one. (0x80070490)

Open a command prompt as administrator.

Run-

c:\windows\system32\slmgr.vbs /ipk <product_key>

OR

DISM /online /Set-Edition:ServerStandard /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /AcceptEula

How to get your Dell Service Tag from the command prompt

How to get your Dell Service Tag from the command prompt-

Type-
wmic bios get serialnumber

You try to upgrade a VMware ESXi host and get "conflicting vibs"

You try to upgrade a VMware ESXi host and get "The system encountered the following error(s)." "conflicting vibs"

SSH into the host.

esxcli software vib list | grep Mell

esxcli network nic liste

sxcli software vib remove -n net-mst

How to get an old iDrac7 to work with Java

Note- this is a bad idea from a security standpoint, so bear that in mind.



Open a command prompt as Administrator

Navigate to-  C:\Program Files (x86)\Java\jre1.8.0_131\lib\security

Edit java.security (notepad)

Remove the algorithms jdk.jar.disabledAlgorithms and comment out the line that begins with jdk.tls.disabledAlgorithms=.