Стесняюсь спросить, а с какого потолка были взяты вышеуказанные значения? Почему они именно такие?
Например видим:

Код:
[/etc/nginx] root@******* > grep -iR limit_req *
conf.d/isplimitreq.conf:limit_req_zone $binary_remote_addr zone=*******.ru:1280k rate=15r/s;
vhosts-resources/*********.ru/reqlimit.conf:limit_req zone=********.ru burst=20;
Ибо это доставляет кучу варнов в логи:

Код:
2019/05/13 03:07:55 [warn] 880#880: *17620 delaying request, excess: 0.820, by zone "**********", client: **********, server: **********, request: "GET /data/uploads/2017/12/Rasa_gorizont-174x131.jpg HTTP/1.1", host: "***********", referrer: "https://**********/cat/news"
2019/05/13 03:07:55 [warn] 879#879: *17604 delaying request, excess: 1.520, by zone "**********", client: **********, server: **********, request: "GET /data/uploads/2017/12/BunkerMag_1117-174x131.jpg HTTP/1.1", host: "**********", referrer: "https://**********/cat/news"
2019/05/13 03:07:55 [warn] 880#880: *17621 delaying request, excess: 2.400, by zone "**********", client: **********, server: **********, request: "GET /data/uploads/2017/12/autumn17-5rel-174x131.jpg HTTP/1.1", host: "**********", referrer: "https://**********/cat/news"
2019/05/13 03:07:55 [warn] 880#880: *17622 delaying request, excess: 3.340, by zone "**********", client: **********, server: **********, request: "GET /data/uploads/2017/09/no.name_1-174x131.jpg HTTP/1.1", host: "**********", referrer: "https://**********/cat/news"
2019/05/13 03:07:55 [warn] 880#880: *17623 delaying request, excess: 4.340, by zone "**********", client: **********, server: **********, request: "GET /data/uploads/2017/09/SamadhiSitaram-Video-174x131.jpg HTTP/1.1", host: "**********", referrer: "https://**********/cat/news"
2019/05/13 03:07:55 [warn] 880#880: *17624 delaying request, excess: 5.220, by zone "**********", client: **********, server: **********, request: "GET /data/uploads/2017/09/Bunker_magazine_060917-174x131.jpg HTTP/1.1", host: "**********", referrer: "https://**********/cat/news"
2019/05/13 03:07:55 [warn] 880#880: *17620 delaying request, excess: 5.620, by zone "**********", client: **********, server: **********, request: "GET /data/uploads/2017/04/vesssna_img_01-e1491611690916-174x131.jpg HTTP/1.1", host: "**********", referrer: "https://**********/cat/news"
2019/05/13 03:07:55 [warn] 879#879: *17604 delaying request, excess: 5.780, by zone "**********", client: **********, server: **********, request: "GET /data/uploads/2017/03/tyhjyys-174x131.jpg HTTP/1.1", host: "**********", referrer: "https://**********/cat/news"
2019/05/13 03:07:55 [warn] 880#880: *17621 delaying request, excess: 5.700, by zone "**********", client: **********, server: **********, request: "GET /data/uploads/2017/03/From-The-Ashes-174x131.jpg HTTP/1.1", host: "**********", referrer: "https://**********/cat/news"
Это так реализована реакция на выставленную в панели галку "Защита от DDoS атак"? Если да, то это "гениально"!