Platforms

Unix and Windows, 17.5 and later


Abstract

A unique site key for one of the three supported CAPTCHA solutions:  Cloudflare Turnstile, hCaptcha, or Google reCAPTCHA.


Example

Using Google reCAPTCHA as an example (and please note this is not a real key, you must sign up and create your own):

z/VM:

<not available>

Unix:

WWW_RECAPTCHA_SITEKEY="6Lfb0V0qAQQQQGVUsample5fH4TbYNfvvy"

export WWW_RECAPTCHA_SITEKEY

Windows:

WWW_RECAPTCHA_SITEKEY=6Lfb0V0qAQQQQGVUsample5fH4TbYNfvvy

The site keys for the other two services would be configured identically, but using either WWW_CLOUDFLARE_SITEKEY or WWW_HCAPTCHA_SITEKEY.


Details

This variable is part of LISTSERV's CAPTCHA suite for logins, introduced in LISTSERV 17.5.

After signing up for one of the three supported CAPTCHA solutions (see Abstract, above), you will receive a unique site key.  This value must be applied to the appropriate SITEKEY variable for the service you have chosen.

The *_SITEKEY values above may also be configured in site.cfg or go.user, in the same format as shown above for WWW_CAPTCHA_BADGE.

NOTE:  LISTSERV does not support Google ReCAPTCHA v3.  If using Google ReCAPTCHA, you MUST use ReCAPTCHA v2, preferably the check-box option.

For more information regarding setting up LISTSERV's CAPTCHA login feature, please see the Advanced Topics Manual for LISTSERV.  There is also a script which needs to be configured with the "private" site key, which is separate and distinct from the public site key you configure in this variable.


Default Value

Not set.


See also

WWW_CAPTCHA_BADGE