Wordpress Adding a wordpress vhost breaks nginx

jair · Dec 6, 2017

I am trying to add a wordpress vhost via option 22 in centminmod menu. Everything looks ok, up to a point where nginx has to be restarted and it fails there.

I read in other topics here that I need to run nginx -t and here it is:

Code:

 nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: [emerg] zero size shared memory zone "xwplogin"
nginx: configuration file /usr/local/nginx/conf/nginx.conf test failed

When I remove the newly created vhost files, nginx starts correctly. Here is the content of the two vhosts generated by the script, I haven't added anything custom to them.

Code:

# Centmin Mod Getting Started Guide
# must read http://centminmod.com/getstarted.html

# redirect from non-www to www
# uncomment, save file and restart Nginx to enable
# if unsure use return 302 before using return 301
#server {
#            listen   80;
#            server_name shop.magelanci.com www.shop.magelanci.com;
#            return 301 $scheme://www.shop.magelanci.com$request_uri;
#       }

server {

  server_name shop.magelanci.com www.shop.magelanci.com;

# ngx_pagespeed & ngx_pagespeed handler
#include /usr/local/nginx/conf/pagespeed.conf;
#include /usr/local/nginx/conf/pagespeedhandler.conf;
#include /usr/local/nginx/conf/pagespeedstatslog.conf;

  #add_header X-Frame-Options SAMEORIGIN;
  #add_header X-Xss-Protection "1; mode=block" always;
  #add_header X-Content-Type-Options "nosniff" always;

  # limit_conn limit_per_ip 16;
  # ssi  on;

  access_log /home/nginx/domains/shop.magelanci.com/log/access.log combined buffer=256k flush=5m;
  error_log /home/nginx/domains/shop.magelanci.com/log/error.log;

  include /usr/local/nginx/conf/autoprotect/shop.magelanci.com/autoprotect-shop.magelanci.com.conf;
  root /home/nginx/domains/shop.magelanci.com/public;
  # uncomment cloudflare.conf include if using cloudflare for
  # server and/or vhost site
  #include /usr/local/nginx/conf/cloudflare.conf;
  include /usr/local/nginx/conf/503include-main.conf;

  include /usr/local/nginx/conf/wpincludes/shop.magelanci.com/wpcacheenabler_shop.magelanci.com.conf;
  #include /usr/local/nginx/conf/wpincludes/shop.magelanci.com/wpsupercache_shop.magelanci.com.conf;
  # https://community.centminmod.com/posts/18828/
  #include /usr/local/nginx/conf/wpincludes/shop.magelanci.com/rediscache_shop.magelanci.com.conf;

  location / {
  include /usr/local/nginx/conf/503include-only.conf;


  # Enables directory listings when index file not found
  #autoindex  on;

  # for wordpress super cache plugin
  #try_files /wp-content/cache/supercache/$http_host/$cache_uri/index.html $uri $uri/ /index.php?q=$uri&$args;

  # for wp cache enabler plugin
  try_files $cache_enabler_uri $uri $uri/ $custom_subdir/index.php?$args;

  # Wordpress Permalinks
  #try_files $uri $uri/ /index.php?q=$uri&$args;

  # Nginx level redis Wordpress
  # https://community.centminmod.com/posts/18828/
  #try_files $uri $uri/ /index.php?$args;

  }

location ~* /(wp-login\.php) {
    limit_req zone=xwplogin burst=1 nodelay;
    #limit_conn xwpconlimit 30;
    auth_basic "Private";
    auth_basic_user_file /home/nginx/domains/shop.magelanci.com/htpasswd_wplogin;
    include /usr/local/nginx/conf/php-wpsc.conf;
    # https://community.centminmod.com/posts/18828/
    #include /usr/local/nginx/conf/php-rediscache.conf;
}

location ~* /(xmlrpc\.php) {
    limit_req zone=xwprpc burst=45 nodelay;
    #limit_conn xwpconlimit 30;
    include /usr/local/nginx/conf/php-wpsc.conf;
    # https://community.centminmod.com/posts/18828/
    #include /usr/local/nginx/conf/php-rediscache.conf;
}

  include /usr/local/nginx/conf/wpincludes/shop.magelanci.com/wpsecure_shop.magelanci.com.conf;
  include /usr/local/nginx/conf/php-wpsc.conf;

  # https://community.centminmod.com/posts/18828/
  #include /usr/local/nginx/conf/php-rediscache.conf;
  include /usr/local/nginx/conf/pre-staticfiles-local-shop.magelanci.com.conf;
  include /usr/local/nginx/conf/pre-staticfiles-global.conf;
  include /usr/local/nginx/conf/staticfiles.conf;
  include /usr/local/nginx/conf/drop.conf;
  #include /usr/local/nginx/conf/errorpage.conf;
  include /usr/local/nginx/conf/vts_server.conf;

}

Code:

# Centmin Mod Getting Started Guide
# must read http://centminmod.com/getstarted.html
# For HTTP/2 SSL Setup
# read http://centminmod.com/nginx_configure_https_ssl_spdy.html

# redirect from www to non-www  forced SSL
# uncomment, save file and restart Nginx to enable
# if unsure use return 302 before using return 301
# server {
#   server_name shop.magelanci.com www.shop.magelanci.com;
#    return 302 https://$server_name$request_uri;
# }

server {
  listen 443 ssl http2;
  server_name shop.magelanci.com www.shop.magelanci.com;

  ssl_dhparam /usr/local/nginx/conf/ssl/shop.magelanci.com/dhparam.pem;
  ssl_certificate      /usr/local/nginx/conf/ssl/shop.magelanci.com/shop.magelanci.com.crt;
  ssl_certificate_key  /usr/local/nginx/conf/ssl/shop.magelanci.com/shop.magelanci.com.key;
  include /usr/local/nginx/conf/ssl_include.conf;

  http2_max_field_size 16k;
  http2_max_header_size 32k;
  # mozilla recommended
  ssl_ciphers ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS;
  ssl_prefer_server_ciphers   on;
  #add_header Alternate-Protocol  443:npn-spdy/3;

  # before enabling HSTS line below read centminmod.com/nginx_domain_dns_setup.html#hsts
  #add_header Strict-Transport-Security "max-age=31536000; includeSubdomains;";
  #add_header X-Frame-Options SAMEORIGIN;
  #add_header X-Xss-Protection "1; mode=block" always;
  #add_header X-Content-Type-Options "nosniff" always;
  #spdy_headers_comp 5;
  ssl_buffer_size 1369;
  ssl_session_tickets on;

  # enable ocsp stapling
  #resolver 8.8.8.8 8.8.4.4 valid=10m;
  #resolver_timeout 10s;
  #ssl_stapling on;
  #ssl_stapling_verify on;
  #ssl_trusted_certificate /usr/local/nginx/conf/ssl/shop.magelanci.com/shop.magelanci.com-trusted.crt;

# ngx_pagespeed & ngx_pagespeed handler
#include /usr/local/nginx/conf/pagespeed.conf;
#include /usr/local/nginx/conf/pagespeedhandler.conf;
#include /usr/local/nginx/conf/pagespeedstatslog.conf;

  #add_header X-Frame-Options SAMEORIGIN;
  #add_header X-Xss-Protection "1; mode=block" always;
  #add_header X-Content-Type-Options "nosniff" always;

  # limit_conn limit_per_ip 16;
  # ssi  on;

  access_log /home/nginx/domains/shop.magelanci.com/log/access.log combined buffer=256k flush=5m;
  error_log /home/nginx/domains/shop.magelanci.com/log/error.log;

  include /usr/local/nginx/conf/autoprotect/shop.magelanci.com/autoprotect-shop.magelanci.com.conf;
  root /home/nginx/domains/shop.magelanci.com/public;
  # uncomment cloudflare.conf include if using cloudflare for
  # server and/or vhost site
  #include /usr/local/nginx/conf/cloudflare.conf;
  include /usr/local/nginx/conf/503include-main.conf;

  include /usr/local/nginx/conf/wpincludes/shop.magelanci.com/wpcacheenabler_shop.magelanci.com.conf;
  #include /usr/local/nginx/conf/wpincludes/shop.magelanci.com/wpsupercache_shop.magelanci.com.conf;
  # https://community.centminmod.com/posts/18828/
  #include /usr/local/nginx/conf/wpincludes/shop.magelanci.com/rediscache_shop.magelanci.com.conf;

  location / {
  include /usr/local/nginx/conf/503include-only.conf;


  # Enables directory listings when index file not found
  #autoindex  on;

  # for wordpress super cache plugin
  #try_files /wp-content/cache/supercache/$http_host/$cache_uri/index.html $uri $uri/ /index.php?q=$uri&$args;

  # for wp cache enabler plugin
  try_files $cache_enabler_uri $uri $uri/ $custom_subdir/index.php?$args;

  # Wordpress Permalinks
  #try_files $uri $uri/ /index.php?q=$uri&$args;

  # Nginx level redis Wordpress
  # https://community.centminmod.com/posts/18828/
  #try_files $uri $uri/ /index.php?$args;

  }

location ~* /(wp-login\.php) {
    limit_req zone=xwplogin burst=1 nodelay;
    #limit_conn xwpconlimit 30;
    auth_basic "Private";
    auth_basic_user_file /home/nginx/domains/shop.magelanci.com/htpasswd_wplogin;
    include /usr/local/nginx/conf/php-wpsc.conf;

    # https://community.centminmod.com/posts/18828/
    #include /usr/local/nginx/conf/php-rediscache.conf;
}

location ~* /(xmlrpc\.php) {
    limit_req zone=xwprpc burst=45 nodelay;
    #limit_conn xwpconlimit 30;
    include /usr/local/nginx/conf/php-wpsc.conf;

    # https://community.centminmod.com/posts/18828/
    #include /usr/local/nginx/conf/php-rediscache.conf;
}

  include /usr/local/nginx/conf/wpincludes/shop.magelanci.com/wpsecure_shop.magelanci.com.conf;
  include /usr/local/nginx/conf/php-wpsc.conf;

  # https://community.centminmod.com/posts/18828/
  #include /usr/local/nginx/conf/php-rediscache.conf;
  include /usr/local/nginx/conf/pre-staticfiles-local-shop.magelanci.com.conf;
  include /usr/local/nginx/conf/pre-staticfiles-global.conf;
  include /usr/local/nginx/conf/staticfiles.conf;
  include /usr/local/nginx/conf/drop.conf;
  #include /usr/local/nginx/conf/errorpage.conf;
  include /usr/local/nginx/conf/vts_server.conf;
}

I suppose it is the wp-login protection, which I don't want to disable. Centminmod is almost the latest beta with almost all updates (last updated in the weekend).

Some help will be appreciated!

jair · Dec 7, 2017

Commenting out this line:
Code:
limit_req zone=xwplogin burst=1 nodelay;
worked and now nginx starts without issue. On another vps I don't have such problems...

eva2000 · Dec 7, 2017

you might have removed or commented out the limit_req_zone in /usr/local/nginx/conf/nginx.conf see line at centminmod/nginx.conf at 123.09beta01 · centminmod/centminmod · GitHub that would cause your problems as the variable related to it referenced in centmin.sh menu option 22's rate limiting security out of the box

jair · Dec 8, 2017

Yes, that was it! It wasn't me, but one guy that was supposed to "optimize" my server. Thank you and enjoy your time away

Jon Snow · Dec 8, 2017

jair said: ↑

Yes, that was it! It wasn't me, but one guy that was supposed to "optimize" my server. Thank you and enjoy your time away
Click to expand...

But CMM is optimized for the server out of the box. It's scripts you need to tweak stuff for.

eva2000 · Dec 10, 2017

jair said: ↑

Yes, that was it! It wasn't me, but one guy that was supposed to "optimize" my server. Thank you and enjoy your time away
Click to expand...

Ah ha, yes Centmin Mod is auto optimised out of the box for the server specs. Though further optimisation is possibly required for your web app's usage requirements.

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