Today’s outage

Approximately 4 hours ago, Ozblogistan began to receive a very high level of traffic. During this period my performance tracking tools stopped working so it is difficult to tell how much traffic was received during the period.

A few minutes ago I kicked over our web server to reset all connections, which resolved this matter last time. This time too, apparently.

There are three possibilities:

  1. Misconfiguration of the web server software
  2. A badly behaved indexer program
  3. A denial of service attack

I am confident that the server is correctly configured, but I cannot eliminate the possibility that I am misinterpreting the available performance records. That kicking the server over “fixes” the problem might suggest this possibility.

If there was a badly behaved indexing program crawling all Ozblogistan sites, it should have turned up in my Cloudflare dashboard which, so far, it has not.

The odd man out in the Ozblogistan network is Catallaxy Files. The Cat is the only site currently not “behind” Cloudflare’s protective service. If we were receiving the loving ministrations of a badly behaved indexing program, then that program was exclusively crawling the Cat.

The unhappiest possibility is that this was a denial-of-service attack; again, directed against the Cat. Sometime in the next few days I expect that Catallaxy Files will be placed behind Cloudflare along with the other Ozblogistan sites and that this will prevent any such attacks from being successful.

Well, that’s it, folks. Please resume your usual blogging and commenting.

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