After adding a single ALLOW record to the firewall, my server stopped responding to any requests.
ping 'my-ip' still worked, but it appeared to stop responding to any other requests, which makes me believe it’s a firewall issue.
I can’t SSH, access any of my hosted websites, nothing.
All I can do is go into OVH and issue a restart, then wait 5 minutes for it to spring back to life.
This happened before a few days ago when I was configuring the server using Hestia. I wasn’t sure exactly what caused it but it was probably editing the firewall list on that occasion as well.
Anyone else experienced this?
How can I fix it?