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Setting up SSL for DWScript Web Server

DWS_serverSetting up an SSL with DWScript [1] Web Server (and other http.sys services like mORMot [2]) is simple, and it’s cheap, free even thanks to StartCOM [3]. Encryption is also pretty darn fast on recent Windows server versions.

Here is a quick guide to get you started.

Getting a Certificate

You can get a certificate from various certification authorities, at various price and service levels.

startcom-logo-250You can get a free Class 1 certificate from StartSSL [4], it’s valid for one year, but limited to a subdomain only. For instance if you get one for “secure.mydomain.com” it won’t work for “www.mydomain.com”. These certificates are intended for individuals and non-commercial usage, as they don’t mean the organization has been certified to exist. However, they’re good enough to secure the connection without any browser warnings.

Once you’ve generated you certificate, you’ll want the PKCS#12 file from it (.p12), you can generate it from StartSSL ToolBox /¬†Create PKCS#12 (PFX) File utility.

It goes without saying that your should be very careful with your certificate files and password protection for them. Feel free to use my passphrase generator [5] for a strong password.

Installing the Certificate

The simplest way to setup the certificate in Windows 2008 or 2012 for use with DWScript Web Server is to use HttpSysManager [6]. Just download and unzip it.

Then in the first tab “SSL”, click “Select a certificate”, then pick your .p12 file, enter your password.

In the IP field, enter if you want the certificate to work for all IPs on the machine, then click “Add cert info”.


Setting Up options.json

The minimal requirement for SSL support in the DWScript Web Server is to specify the SSL Port, which by default isn’t active, so you need to have in your options.json at least

	"Server" : {
		"SSLPort": 443

Restart the service if necessary. Done.