Can I block request by Cookie value in Nginx?

user_8852122 0
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I want to block exact cookie value like PHPSESSID in Nginx. Does this possible? My site under DDoS but I can't block by IP due to shared addresses. Attackers use same value of Cookies so I try to block by cookie value.

Thanks

tor ddos nginx http php
1 Answers
server {
  ...

  if ($cookie_PHPSESSID = "XXXXXXXXXXXX") {
    return 403;
  }
}
user_40358450
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