Err_ssl_protocol_error

[guinux]

Problem happens only in chrome, microsoft edge works fine.

[guinux]

Edge

[support200]

Could be this one, https://nxfilter.org/tutorial/i-faq.php#hide-ssl

[guinux]

My question is because in edge it works and in chrome it doesn't?

[support200]

You mean that you installed CxForward? Did you install it on Edge and Chrome both?

[guinux]

Yes. No Edge redirects correctly. In chrome no.

[support200]

I guess that you installed CxForward already on both browsers as I can see CxForward icon in your capture images. So, what you say is that your CxForward doesn't work on Chrome while it's working on Edge. Right? Both of them work in the same way. Try other sites.

[guinux]

Correct your statement above. I tried other sites and the same happens. I suspect it may be due to NAT in pfSense.

[guinux]

I did a few more tests and found that even on the Edge it's not working. I have a NAT in pfSense where I forward any request on port 53 to the Nxfilter IP that is on another network interface.

[support200]

Yeah, that could be the problem. NxFilter needs to know its client IP and your CxForward tries to find out if it's blocked or not based on its IP address.

[guinux]

Is there any solution with NAT?

[support200]

Not possible on application level.

[support200]

Your CxForward tries to contact NxFilter through TCP/80. The client IP of UDP/53 and TCP/80 should be same.

[guinux]

Understand. Thanks.

[guinux]

I put Nxfilter on the same local network as the computers (Without NAT) and the problem persists.