The main server at is back up. Thanks to the fast intervention of a few specialists of the IT team we also know that this was probably not a DDOS but a combination of problems including that Apache was configured to handle a greater number of connexions that the server can actually handle so it ran near out of memory.  Still, there were some weird connection attempts from certain IPs and this problems is being addressed right now.  I would call that “growing pains” with the emphasis on “growing” which is a good thing.

The Essential Saker IV: Messianic Narcissism's Agony by a Thousand Cuts
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