Problems accessing WebUI

[Chriss_93]

Hi,

I accidentally changed the Web UI from HTTPS to HTTP and I lost access to the Web UI. I`ve installed OPNsense again and loaded my backup. Everything is working, I have internet access and my VLANs are working. I also have access via SSH. Unfortunately, I still have no access to the WebUI. Firefox is telling me this:

An error occurred during a connection to 192.168.1.1:8443. SSL received a record that exceeded the maximum permissible length.

Error code: SSL_ERROR_RX_RECORD_TOO_LONG

Does anyone knows how to fix this?

Thanks

Chriss

[Chriss_93]

Never mind. I forgot to remove the USB-Stick when I tried to reload my old config. Now I installed OPNsense completely new on my internal SSD, removed the USB, rebooted while loading the old settings and there it is, the WebUI and all my settings

[Vilhonator]

Glad that your problem was that minor. I would just want to give small tips, incase you ever loose access to web GUI ever again.

As long as issue is just not being able to connect to WebGUI, in most cases all you have to do, is access the console via SSH or physical method and either select restore backup. By default, opnsense automatically creates an backup everytime, you make changes to system. Now it does start overwriting oldest backup after x amount of changes made (can't remember what default value is, since I changed mine, but it is quite high and propability it working is high, as long as last 20 or so changes caused the issue).

As long as you have access to console, you are able to either revert to quite a few last automatic backups named on date and time they were created (unless you have disabled it) or less safe option which is disabling firewall from shell.

Best practice would be creating backups before and after you have made changes to the system, or configure automatic backups (https://docs.opnsense.org/manual/how-tos/cloud_backup.html) in which case you are always able to just reset everything to factory defaults