[12476490.565583] Peer 188.170.75.238:9303/443 unexpectedly shrunk window 226855 4975:2268555035 (repaired)
[12478413.912825] Peer 185.78.44.28:27100/443 unexpectedly shrunk window 9409759 80:940976708 (repaired)
[12478414.376379] Peer 185.78.44.28:27100/443 unexpectedly shrunk window 9409759 80:940976708 (repaired)
[12478415.303519] Peer 185.78.44.28:27100/443 unexpectedly shrunk window 9409759 80:940976708 (repaired)
[12478647.163003] Peer 185.78.44.28:17580/443 unexpectedly shrunk window 3477478 545:3477479509 (repaired)
[12509879.623538] net_ratelimit: 3 callbacks suppressed
[12509879.623559] Peer 156.146.59.5:48030/443 unexpectedly shrunk window 3061086 290:3061090634 (repaired)
[12509880.434769] Peer 156.146.59.5:48002/443 unexpectedly shrunk window 2754156 827:2754158275 (repaired)
[12509880.710505] Peer 156.146.59.5:48030/443 unexpectedly shrunk window 3061112 354:3061113802 (repaired)
[12509882.009271] Peer 156.146.59.5:48002/443 unexpectedly shrunk window 2754200 267:2754201715 (repaired)
[12509882.788528] Peer 156.146.59.5:48044/443 unexpectedly shrunk window 3009113 871:3009115319 (repaired)
[12509883.272070] Peer 156.146.59.5:48002/443 unexpectedly shrunk window 2754219 091:2754221987 (repaired)
[12509884.426974] Peer 156.146.59.5:48030/443 unexpectedly shrunk window 3061196 338:3061200682 (repaired)
[12509900.347868] Peer 156.146.59.5:48030/443 unexpectedly shrunk window 3061649 562:3061652458 (repaired)
[12509920.097051] Peer 156.146.59.5:48030/443 unexpectedly shrunk window 3062170 842:3062173738 (repaired)
[12509923.737592] Peer 156.146.59.5:48030/443 unexpectedly shrunk window 3062257 722:3062260618 (repaired)
[12509928.129411] Peer 156.146.59.5:48030/443 unexpectedly shrunk window 3062386 594:3062393834 (repaired)
[12509929.851769] Peer 156.146.59.5:48030/443 unexpectedly shrunk window 3062422 794:3062425690 (repaired)
[12509933.068716] Peer 156.146.59.5:48030/443 unexpectedly shrunk window 3062498 090:3062500986 (repaired)
[12509934.231615] Peer 156.146.59.5:48030/443 unexpectedly shrunk window 3062522 706:3062524154 (repaired)
[12509935.634279] Peer 156.146.59.5:48030/443 unexpectedly shrunk window 3062560 354:3062564698 (repaired)
[12573390.052730] Peer 185.78.44.28:7474/443 unexpectedly shrunk window 10955954 64:1095596906 (repaired)
[12576037.402938] Peer 46.216.168.164:4457/443 unexpectedly shrunk window 315714 279:315715647 (repaired)
[12576810.887362] Peer 217.26.171.202:19634/443 unexpectedly shrunk window 21396 77495:2139677527 (repaired)
[12577410.357317] Peer 46.216.224.192:2094/443 unexpectedly shrunk window 155574 8944:1555750312 (repaired)
[12577443.361922] Peer 46.216.224.192:2081/443 unexpectedly shrunk window 129381 0300:1293811060 (repaired)
[12580272.687639] Peer 151.124.107.87:9089/443 unexpectedly shrunk window 306845 1757:3068453237 (repaired)
[12580273.814571] Peer 151.124.107.87:9089/443 unexpectedly shrunk window 306923 5125:3069236709 (repaired)
[12835925.695148] Peer 185.99.10.54:22105/443 unexpectedly shrunk window 3648690 668:3648691868 (repaired)
[12838634.721011] Peer 185.99.10.54:56766/443 unexpectedly shrunk window 1540579 282:1540579374 (repaired)
[12840439.158361] Peer 156.146.59.13:50198/443 unexpectedly shrunk window 234617 1896:2346202304 (repaired)
[12840439.549985] Peer 156.146.59.13:50204/443 unexpectedly shrunk window 283582 4300:2835847468 (repaired)
[12840439.977584] Peer 156.146.59.13:50218/443 unexpectedly shrunk window 225484 5029:2254858061 (repaired)
[12840443.090655] Peer 156.146.59.13:50184/443 unexpectedly shrunk window 411407 3393:4114074841 (repaired)
[12840443.222526] Peer 156.146.59.13:50204/443 unexpectedly shrunk window 283607 6252:2836080596 (repaired)
[12840445.971917] Peer 156.146.59.13:50156/443 unexpectedly shrunk window 235018 7671:2350200703 (repaired)
[12840461.700947] Peer 156.146.59.13:50170/443 unexpectedly shrunk window 130363 86:13043626 (repaired)
[12840565.422379] Peer 156.146.59.13:60694/443 unexpectedly shrunk window 315535 9902:3155371486 (repaired)
[13383883.897211] UDP: bad checksum. From 60.190.248.13:61607 to 5.187.3.24:1701 ulen 109
[13383916.824256] UDP: bad checksum. From 60.190.248.13:5534 to 5.187.3.24:1720 ulen 37
[13384015.623227] UDP: bad checksum. From 60.190.248.13:32815 to 5.187.3.24:1911 ulen 37
[13384048.481101] UDP: bad checksum. From 60.190.248.13:9032 to 5.187.3.24:1962 ulen 37
[13384147.034149] UDP: bad checksum. From 60.190.248.13:5736 to 5.187.3.24:2404 ulen 37
[13384195.267035] UDP: bad checksum. From 60.190.248.12:40000 to 5.187.3.24:3128 ulen 37
[13384260.979989] UDP: bad checksum. From 60.190.248.12:53001 to 5.187.3.24:3306 ulen 37
[13384393.021491] UDP: bad checksum. From 60.190.248.12:21791 to 5.187.3.24:5060 ulen 37
[13384425.863117] UDP: bad checksum. From 60.190.248.12:24608 to 5.187.3.24:5222 ulen 37
[13384458.755626] UDP: bad checksum. From 60.190.248.12:59521 to 5.187.3.24:5353 ulen 55
[13384491.622076] UDP: bad checksum. From 60.190.248.12:5144 to 5.187.3.24:5432 ulen 37
Допустим, захожу в панель под пользователем user и в директории сайта в каком-либо каталоге, пытаюсь создать новый файл (все что по пути /var/www/user/data/ и все вложенные каталоги и файлы принадлежат владельцу user и группе user, владельцу запись и чтение доступны).
чаще такое связано с с настройками php-fpm
Вижу что на сервере стоит ispmanager 5 и он по умолчанию для fpm выставляет ограниченное кол-во воркеров которых может не хватать в часы пик при росте посещаемости.
Видимо нет поддержки проверки SMART (((