title: Error 522 with Cloudflare
body: <p>Hello I have always error 522 with Cloudflare and SSL
  I use 2 url the first is via Cloudflare with full ssl <a href="https://example.com" rel="nofollow">https://example.com</a> and second is with my ip and without Cloudflare <a href="http://XXX.XXX" rel="nofollow">http://XXX.XXX</a>. If i start benchmaking <code>mysql</code> with AB command (or with simple ajax request) the siteweb with Cloudflare down imediatly with error 522 but the website with my IP never down and continue to work faster</p>
  
  <p>I have a free plan in Cloudflare with a auto signed SSL certificat in my server with openssl</p>
  
  <pre><code>openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/apache2/ssl/s1.key -out /etc/apache2/ssl/s1.crt
  </code></pre>
  
  <p>I changed my.cnf for limit max_user_connections to 20 but not working i dont have error in apache and syslog</p>
  
  <p>My server is a debian 7 3 cores 4gb in OVH </p>
  
  <p>top</p>
  
  <pre><code>top - 07:26:58 up 15:25,  2 users,  load average: 2.23, 2.28, 2.18
  Tasks:  57 total,   2 running,  55 sleeping,   0 stopped,   0 zombie
  %Cpu(s):  8.1 us,  1.2 sy,  0.0 ni, 88.7 id,  2.0 wa,  0.0 hi,  0.0 si,  0.0 st
  KiB Mem:   4194304 total,   354532 used,  3839772 free,        0 buffers
  KiB Swap:   131072 total,        0 used,   131072 free,   159668 cached
  
    PID USER      PR  NI  VIRT  RES  SHR S  %CPU %MEM    TIME+  COMMAND
  11715 mysql     20   0  585m 100m 7824 S  28.1  2.5 117:17.15 mysqld
  14469 www-data  20   0  222m  12m 4312 R   2.9  0.3   0:20.86 apache2
  14567 www-data  20   0  222m  11m 3604 S   2.0  0.3   0:12.89 apache2
  14579 www-data  20   0  221m  11m 3612 S   2.0  0.3   0:07.69 apache2
   2599 root      20   0 24364 2208 1296 S   1.0  0.1  10:53.41 htop
   5317 root      20   0 24292 2184 1296 S   0.7  0.1  10:41.42 htop
  14577 www-data  20   0  221m  10m 3400 S   0.7  0.3   0:08.94 apache2
      1 root      20   0 10604  796  664 S   0.0  0.0   0:15.10 init
      2 root      20   0     0    0    0 S   0.0  0.0   0:00.00 kthreadd/46179
      3 root      20   0     0    0    0 S   0.0  0.0   0:00.00 khelper/46179
      4 root      20   0     0    0    0 S   0.0  0.0   0:00.00 rpciod/46179/0
      5 root      20   0     0    0    0 S   0.0  0.0   0:00.00 rpciod/46179/1
      6 root      20   0     0    0    0 S   0.0  0.0   0:00.00 rpciod/46179/2
      7 root      20   0     0    0    0 S   0.0  0.0   0:00.00 rpciod/46179/3
      8 root      20   0     0    0    0 S   0.0  0.0   0:00.00 rpciod/46179/4
      9 root      20   0     0    0    0 S   0.0  0.0   0:00.00 rpciod/46179/5
     10 root      20   0     0    0    0 S   0.0  0.0   0:00.00 rpciod/46179/6
     11 root      20   0     0    0    0 S   0.0  0.0   0:00.00 rpciod/46179/7
     12 root      20   0     0    0    0 S   0.0  0.0   0:00.00 nfsiod/46179
   1533 root      20   0 30764  488  244 S   0.0  0.0   0:00.00 syslog-ng
   1534 root      20   0 88480 3572 2480 S   0.0  0.1   0:02.10 syslog-ng
   1658 messageb  20   0 29760  556  296 S   0.0  0.0   0:00.00 dbus-daemon
   1676 bind      20   0  202m  22m 2324 S   0.0  0.5   0:02.13 named
   1682 root      20   0 49888 1236  628 S   0.0  0.0   0:00.37 sshd
   1717 root      20   0 72552 2132  524 S   0.0  0.1   0:19.69 sendmail-mta
   2295 root      20   0 20844 1024  776 S   0.0  0.0   0:02.76 cron
   2398 proftpd   20   0 99.7m 1944  500 S   0.0  0.0   0:09.15 proftpd
   2422 root      20   0 52324 1672 1152 S   0.0  0.0   0:00.02 login
   2423 root      20   0 14532  836  676 S   0.0  0.0   0:00.00 getty
   2424 root      20   0 14532  832  676 S   0.0  0.0   0:00.00 getty
   2425 root      20   0 14532  828  676 S   0.0  0.0   0:00.00 getty
   2426 root      20   0 14532  832  676 S   0.0  0.0   0:00.00 getty
   2427 root      20   0 14532  832  676 S   0.0  0.0   0:00.00 getty
   2506 root      20   0 24368 1964  776 S   0.0  0.0   0:46.24 screen
   2507 root      20   0 19944 2272 1672 S   0.0  0.1   0:02.25 bash
   2508 root      20   0 19916 2176 1604 S   0.0  0.1   0:00.02 bash
   5316 root      20   0 19916 2176 1604 S   0.0  0.1   0:00.00 bash
   9522 root      20   0  220m  10m 4436 S   0.0  0.3   0:36.96 apache2
  10166 root      20   0 19924 2216 1636 S   0.0  0.1   0:00.00 bash
  </code></pre>