Server version: Apache/2.4.29 (Ubuntu) Linux pinf-vps 4.4.0-97-generic #120-Ubuntu SMP Tue Sep 19 17:28:18 UTC 2017 x86_64 PHP Version 7.1.10-1+ubuntu16.04.1+deb.sury.org+1 (php-fpm) Ubuntu 16.04.1 8GB RAM, 4 cores (Azure A4_V2) Apache有时候没有反应。 我在那里举办了几个网站，但他们没有得到超大stream量。 我以为这可能是由MySQL引起的，但有时会影响到不使用它的网站。
我不知道是什么原因导致了这个问题。 networking会挂起5到120秒，这太长了。 有时20分钟没有响应。 有时只有基于MySQL的网站（与Wordpress，顺便说一句：相同的WP页面在其他主机上运行速度很快）
ulimit -a
core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 31742 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 31742 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited
我可以发布各种命令的输出。 这让我疯狂。 首先，我认为这是DDOS，但我错了。 我能做些什么来解决它？
EDIT: It was down for some time now, I have the logs: [Wed Oct 25 05:05:03.192874 2017] [proxy_fcgi:error] [pid 16511:tid 140363339585280] [client **.**.253.4:22300] AH01071: Got error 'Primary script unknown\n' [Wed Oct 25 05:40:38.481107 2017] [proxy_fcgi:error] [pid 16511:tid 140363490653952] (70007)The timeout specified has expired: [client 192.0.91.177:24513] AH01075: Error dispatching request to : (polling) [Wed Oct 25 05:41:11.587027 2017] [proxy_fcgi:error] [pid 16510:tid 140363457083136] (70007)The timeout specified has expired: [client 210.4.124.13:18651] AH01075: Error dispatching request to : (polling) [Wed Oct 25 05:41:48.509292 2017] [proxy_fcgi:error] [pid 16510:tid 140363490653952] (70007)The timeout specified has expired: [client 210.4.124.13:18703] AH01075: Error dispatching request to : (polling) [Wed Oct 25 05:43:20.751238 2017] [proxy_fcgi:error] [pid 16510:tid 140363599685376] (70007)The timeout specified has expired: [client 192.0.91.61:27200] AH01075: Error dispatching request to : (polling), referer: https://www.**********.**/xmlrpc.php?for=jetpack&token=**************%3A1%3A1×tamp=1508902698&nonce=orjewRjNCU&body-hash=****************&signature=************** [Wed Oct 25 06:05:03.605511 2017] [proxy_fcgi:error] [pid 16511:tid 140363465475840] [client 92.240.253.4:62965] AH01071: Got error 'Primary script unknown\n' [Wed Oct 25 06:25:07.270569 2017] [mpm_event:notice] [pid 16507:tid 140364126173056] AH00493: SIGUSR1 received. Doing graceful restart [Wed Oct 25 06:25:08.159906 2017] [so:warn] [pid 16507:tid 140364126173056] AH01574: module http2_module is already loaded, skipping