Hello,
I would like to force renew the provisioning of the Lets Encrypt certificate. I know this normally is possible in 14 days prior to expiration, but I will go on holiday for a few weeks and want to take care of it right now.
Normally this would not be an issue, but the firewall for all HTTP and HTTPS traffic is closed because I only use mail functionalities (of course my office IP is whitelisted, so only I can access the web interface) and only those ports are required to open up to the world. So the normal ACME challenge will fail unless I open up those ports for a few minutes while I click the renew option. But that is not available (yet).
How can I renew certificates if they will expire in around 20 days? Is this possible in the web interface or in the CLI?
Thanks in advance!