Moodle in English: Jail server reports Potential Security Risk Warning

Jail server reports Potential Security Risk Warning

by sasikumar r - Thursday, October 8, 2020, 3:03 PM

Hi,

We have installed moodle-3.9 and Jail-server-2.5.3 for Moodle-VPL in Ubuntu-18.04 desktop machine (one machine for Moodle and another machine for jail server). To verify the working conditions of Jail-server, I used the following commands on URL.

1. http://192.168.49.65:80/Ok

2. https://192.168.49.65:443/OK

First URL reports "OK" on the web browser and the second command (i.e https://192.168.49.65:443/OK) shows warning report. Here I have attached the error report for your reference.

We can execute moodle & jail server inside the college without any issues. But when we trying to execute from outside of our college, it will not execute the coding and also it does not report any error. We thought may be the above warning the browser unable to communicate with jail-server while trying from outside LAN. How to overcome this "HTTPS" issue.? how to access jail-server without the above warning? kindly help to solve these problems.

The Mum and Dad of I.P. ranges

by Marcus Green - Thursday, October 8, 2020, 5:33 PM

The ip addresses starting 192 are internal to whatever network you are on.
I just tried to find a url for a simple explanation but they were all a bit 'shoe staring'

So when you are outside college e.g. on a home broadband network all the 192 ip range numbers will refer to things between your machine and your router. To be reachable outside college it will require an alternative/additional i.p. address.

Update:

Someone on Quora came up with a good analogy:

"So you will see it often, but by and large you can ignore it. If you are not directly connected to the internet, you will usually have an address in this range. But this is rather like a lot of people are called Mum and Dad in their own homes - it doesn't cause confusion because other people don't use those local names."

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Re: Jail server reports Potential Security Risk Warning

by Juan Carlos Rodríguez-del-Pino - Thursday, October 8, 2020, 9:08 PM

To use your jail server from outside of your college I think you need to:
1) Use a public IP for your jail server, not a private one, as Marcus indicates.
2) Use a trusted certificate in your jail server. To get and use a Let'Encrypt certificate you can follow the post https://moodle.org/mod/forum/discuss.php?d=401497

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Virtual Programming Lab (plugin)

Jail server reports Potential Security Risk Warning