Install an SSL Certificate on a Synology NAS

This guide will walk you through installing an inexpensive SSL Certificate on you Synology NAS (Running DSM 5.2-5644 as of this writing)

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Go in to Security (on the left column), then click on Certificate (across the top towards the right)
Click Create Certificate
Click Create certificate signing request (CSR)
Leave the default key length at 2048, and fill out the rest of the form with accurate information. and click Next
Now click Download to receive your CSR files
Extract the files of the zip file you just downloaded
Login in to (or create) your Namecheap.com account
Choose the PostiveSSL for the length of years you want (I chose 3 years)
Enter your payment info
Review your order and choose Pay Now
You now have an available certificate in your account that you can use with the Certificate Signing Request we created earlier
After your order is complete, you will be at the Order Summary page, click the Manage button
On the next page click Activate
Open the server.csr file and paste its contents in to the CSR box, and choose Apache, Nginc, cPanel, or Other as the Server Type and press Submit
It will give you a summary of the info you enter in the CSR. If everything looks correct press Next
Now for what can be the tricky part. You need to verify that you truly own the domain name you're registering an SSL cert for. There are three options. For me, the easiest is the email option.
Once domain verification completes, you're cert will be emailed to you as a zipped attachment. If you don't receive it, or have issues getting attachments, you can simply log in to your namecheap.com dashboard and download it.

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