This file creates a PNG image containing a series of five digits. The following code needs to be saved as a stand-alone PHP file (we call it captcha.php). The code presented here shows you how to create a simple CAPTCHA graphic with random lines and digits and how to incorporate it into an HTML form to prevent automated submission by malicious scripts. The main targets are Guestbook and Contact forms, but any online form can be a target for abuse. There are others but.The CAPTCHA approach to securing forms is not new – it first appeared in the late 90′s for domain name submissions to search engines and the like – but with the exponential growth of scripted exploits it’s coming to the fore once again.
They support all platforms and it looks pretty easy to set up. I haven't personally used it but stumbled upon it when I had T-Mobile home internet for a short while. They have a free tier so you can test it out before you buy. It costs money and is priced by the TB but may be worth it to get around the headache. There is a service already set up for your exact scenario. Hire help to route 443 traffic through VPS+VPN to circumvent CGNAT Https:/// has some similar offerings to ngrok, but once again for a reserved subdomain you'll need to pay a fee. I'm building a separate website for Spokes and its related software, hoping to publish it. I also publish another product called Spokes Gateway which builds on the tunneling server and includes support for service meshes, high-availability, clusters and some other features. Similar to ngrok with our own differences and approach.
I build a secure tunneling service called Packetriot ($2k/mo).
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