Log on to the WebLM web console with administrator privilege credentials.
Type manageWebLMCertificate -generateSelfSigned and press Enter.
WebLM displays the following message:
Warning! You are creating a new self-signed server certificate which will replace the existing certificate.
It is recommended to use a certificate issued from a trusted CA.
In the Do you wish to proceed? prompt, type y.
WebLM replaces the existing certificate with a new self-signed server certificate.