As promised here, we were working on the down time issue. Over the last couple of weeks diablog went offline occasionally. Not every day, and mostly it was for less than five minutes. Nevertheless, that is annoying to you, in case you experience it, and we do not like that, of course.
As mentioned, the problem is too many connections to the server.
After hours of reading log files to find the cause, and conversations with people who know, I gave up.
It seems, that someone is desperate to get into our server. That someone is running what is called a brute force attack. For that other computers are trying to log in to the server with a different password a couple of times every second. The log in attempts have been unsuccessful so far, we believe. But all those connections at one point lead to the webserver shutting down.
The log in attempts become a DoS attack, a denial of service.
We could rent a bigger server. But that does not prevent any attacker to just increase their load. That would be a rat race.
We could block the IP addresses, where the attacks are coming from. But the attackers are switching IP addresses often. It would be an endless game of whack a mole. And we would never know, whom we are actually blocking.
We could hire a content delivery network service like cloudflare. But I think we will wait for the person or persons to go away. Glynsky and I will discuss this.
In the meantime, please enjoy diablog and the summer.
Update A note to whoever wants to get into the server: Our pass phrases are very, very long; a mix of characters, numbers, and symbols, not in any rainbow table. Please stop trying.