I have a synology DS212j NAS which I am trying to setup so I can log into it from outside my lan using HTTPS. I am pretty new to this, but having read up on it and watched various videos on Youtube, it looked fairly straightforward, even as a complete novice.
I have a (second level) domain name, teamangwin.com to which I have added a subdomain - nas.teamangwin.com. As far as I can tell, this is setup and working correctly, in so far as if I try to access it from my mobile using mobile data (appending the relevant port number), it takes me to the login page for my NAS, but with warning that it is not a secure connection - which it wouldn’t be since I’ve so far been unable to setup my Let’s Encrypt certificate.
I am running Windows 10 with Norton Security Suite and have opened ports 80 and 443 (confirmed by testing at yougetsignal.com. I have also setup my router to forward incoming requests to the port used for HTTPS to my NAS.
Despite my best attempts to set everything up correctly, I can only assume that the issue is down to some error in my setup, therefore if anyone has any pointers to give me it would be much appreciated.
Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
My domain is: nas.teamangwin.com
I ran this command: I used the built-in features of Synology DSM 6.2
It produced this output: Failed to connect to Let’s Encrypt. Please make sure the domain name is valid.
My web server is (include version): Sorry, not sure how to answer this or whether it applies to my query… if you need this please explain what this means as though I were a five year old
The operating system my web server runs on is (include version): As above
My hosting provider, if applicable, is: Not sure this is relevant in my case, since I am trying to install a certificate on my NAS, not on a hosted website, but just in case it is: 1&1 Ionos. I do have a website hosted by them (with a different domain name altogether), but that is protected with a certificate which they have issued
I can login to a root shell on my machine (yes or no, or I don’t know): I don’t know
I’m using a control panel to manage my site (no, or provide the name and version of the control panel): I’m not trying to access my site - I’m trying to log into my Synology NAS
The version of my client is (e.g. output of
certbot --version or
certbot-auto --version if you’re using Certbot): Sorry, I don’t understand this.