On Mon, Jun 08, 2020 at 04:01:37PM -0700, Anand Sridharan wrote: > is there a way on openssl to extend the expiry of certificate date? > > I created a certificate with an expiry date set for 365 days but looking > now to extend it longer or indefinitely. You need to sign a new certificate for the same subject name and public key. While it is possible to use an existing certificate as a "template" the new certificate, it is often simpler to just create a new one. Is there any reason why that's not a good option for you? -- Viktor.