Dans le nuage...

Pre-requisite

• Open your 443 port in the direction to your synology server.

Steps

You have a command to renew in CLI the certificate manually:

/usr/syno/sbin/syno-letsencrypt renew-all -v

-v is for verbose

So, you just have to create a bash file and include this command in it

For example create it in this repository :

/volume1/homes/admin/syno_scripts

Then create a bash file " auto-renew-letsencrypt.sh " for example :

#!/bin/bash
/usr/syno/sbin/syno-letsencrypt renew-all -v

Go to the synology admin webpage

Open "Control Panel > Task Scheduler"

Then create a user defined script

Add your script in the task settings pane.

Schedule it to renew every 3 months :)

Useful links

Based on this website post: Manually Renewing Let’s Encrypt Certificates on a Synology NAS

Inspired by this other post: Update: Let's Encrypt & Synology DSM 6.X