dnsadmin overload

David Fante

• November 06, 2022 11:57

Large number of dnsadmin processes consuming all memory and processing. When I stop Apache the processes disappear and the server load goes back to normal.

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  cPRex Jurassic Moderator

  • November 07, 2022 14:30

  Hey there! Can you try running the command in this article to see if your server may be experiencing a DoS attack?

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  David Fante

  • November 07, 2022 17:23

  This was exactly the problem. I managed to find the source of the attack and blocked it in fw. This service, dnsadmin is responsible for ddns? How is it triggered via web server?

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  cPRex Jurassic Moderator

  • November 07, 2022 17:51

  I would guess, and it is a guess, that the DNS server is also on the same machine, correct? If so, all those Apache requests would likely have a corresponding DNS query as part of the transaction.

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  David Fante

  • November 07, 2022 22:46

  Tks!

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  cPRex Jurassic Moderator

  • November 08, 2022 14:14

  Sure thing!

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