NginX configuration to prevent “Slow HTTP Denial of Service” Come Celebrate our 10 Year Anniversary!Why are NginX and Lighttpd not affected by Slowloris?nginx HTTPS serving with same config as HTTPIn Nginx, how can I rewrite all http requests to https while maintaining sub-domain?Help needed setting up nginx to serve static filesInstalling redmine on ubuntu 10.10Trouble with nginx and serving from multiple directories under the same domainNginx + Passenger = Slow responsePHP app breaks on Nginx, but works on ApacheChange Nginx document root from /usr/share/nginx to /etc/nginxnginx configuration troublenginx limit_req denial of service

NginX configuration to prevent “Slow HTTP Denial of Service”



Come Celebrate our 10 Year Anniversary!Why are NginX and Lighttpd not affected by Slowloris?nginx HTTPS serving with same config as HTTPIn Nginx, how can I rewrite all http requests to https while maintaining sub-domain?Help needed setting up nginx to serve static filesInstalling redmine on ubuntu 10.10Trouble with nginx and serving from multiple directories under the same domainNginx + Passenger = Slow responsePHP app breaks on Nginx, but works on ApacheChange Nginx document root from /usr/share/nginx to /etc/nginxnginx configuration troublenginx limit_req denial of service



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0















I'm trying to configure NginX (in combination with Passenger and Rails) to prevent "Slow HTTP Denial of Service".



What I'm trying to do to prevent it, is limiting the amount of requests per connections to 5 and decrease the timeouts.



This is my configuration:



worker_processes 1;

...

events
worker_connections 1024;


http

...

limit_conn_zone $binary_remote_addr zone=addr:10m;
limit_conn addr 5;

client_body_timeout 15;
client_header_timeout 15;
keepalive_timeout 15;
send_timeout 15;

...
server
...




Our testing software, Qualisguard, says it's still not prevented against Slow HTTP DoS.



Would this even work, or is the configuration itself incorrect?










share|improve this question






















  • Why only one worker process? Have you seen serverfault.com/q/281581/211028

    – Alexey Ten
    May 7 '14 at 4:48











  • @AlexeyTen I don't know, it was like that when I first saw it. Would more worker_processes and less worker_connections be better?

    – Tim Baas
    May 7 '14 at 8:17












  • They both should be increased. See also stackoverflow.com/q/7325211/1016033

    – Alexey Ten
    May 7 '14 at 8:36











  • Wow, thanks dude! Never knew our settings were this low!

    – Tim Baas
    May 7 '14 at 9:53











  • I think this link can be really helpful with your configuration. Slowloris DoS Attack / Nginx Configuration

    – ngrammen
    Apr 17 at 8:24

















0















I'm trying to configure NginX (in combination with Passenger and Rails) to prevent "Slow HTTP Denial of Service".



What I'm trying to do to prevent it, is limiting the amount of requests per connections to 5 and decrease the timeouts.



This is my configuration:



worker_processes 1;

...

events
worker_connections 1024;


http

...

limit_conn_zone $binary_remote_addr zone=addr:10m;
limit_conn addr 5;

client_body_timeout 15;
client_header_timeout 15;
keepalive_timeout 15;
send_timeout 15;

...
server
...




Our testing software, Qualisguard, says it's still not prevented against Slow HTTP DoS.



Would this even work, or is the configuration itself incorrect?










share|improve this question






















  • Why only one worker process? Have you seen serverfault.com/q/281581/211028

    – Alexey Ten
    May 7 '14 at 4:48











  • @AlexeyTen I don't know, it was like that when I first saw it. Would more worker_processes and less worker_connections be better?

    – Tim Baas
    May 7 '14 at 8:17












  • They both should be increased. See also stackoverflow.com/q/7325211/1016033

    – Alexey Ten
    May 7 '14 at 8:36











  • Wow, thanks dude! Never knew our settings were this low!

    – Tim Baas
    May 7 '14 at 9:53











  • I think this link can be really helpful with your configuration. Slowloris DoS Attack / Nginx Configuration

    – ngrammen
    Apr 17 at 8:24













0












0








0








I'm trying to configure NginX (in combination with Passenger and Rails) to prevent "Slow HTTP Denial of Service".



What I'm trying to do to prevent it, is limiting the amount of requests per connections to 5 and decrease the timeouts.



This is my configuration:



worker_processes 1;

...

events
worker_connections 1024;


http

...

limit_conn_zone $binary_remote_addr zone=addr:10m;
limit_conn addr 5;

client_body_timeout 15;
client_header_timeout 15;
keepalive_timeout 15;
send_timeout 15;

...
server
...




Our testing software, Qualisguard, says it's still not prevented against Slow HTTP DoS.



Would this even work, or is the configuration itself incorrect?










share|improve this question














I'm trying to configure NginX (in combination with Passenger and Rails) to prevent "Slow HTTP Denial of Service".



What I'm trying to do to prevent it, is limiting the amount of requests per connections to 5 and decrease the timeouts.



This is my configuration:



worker_processes 1;

...

events
worker_connections 1024;


http

...

limit_conn_zone $binary_remote_addr zone=addr:10m;
limit_conn addr 5;

client_body_timeout 15;
client_header_timeout 15;
keepalive_timeout 15;
send_timeout 15;

...
server
...




Our testing software, Qualisguard, says it's still not prevented against Slow HTTP DoS.



Would this even work, or is the configuration itself incorrect?







centos nginx ruby-on-rails phusion-passenger






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked May 6 '14 at 14:13









Tim BaasTim Baas

1811415




1811415












  • Why only one worker process? Have you seen serverfault.com/q/281581/211028

    – Alexey Ten
    May 7 '14 at 4:48











  • @AlexeyTen I don't know, it was like that when I first saw it. Would more worker_processes and less worker_connections be better?

    – Tim Baas
    May 7 '14 at 8:17












  • They both should be increased. See also stackoverflow.com/q/7325211/1016033

    – Alexey Ten
    May 7 '14 at 8:36











  • Wow, thanks dude! Never knew our settings were this low!

    – Tim Baas
    May 7 '14 at 9:53











  • I think this link can be really helpful with your configuration. Slowloris DoS Attack / Nginx Configuration

    – ngrammen
    Apr 17 at 8:24

















  • Why only one worker process? Have you seen serverfault.com/q/281581/211028

    – Alexey Ten
    May 7 '14 at 4:48











  • @AlexeyTen I don't know, it was like that when I first saw it. Would more worker_processes and less worker_connections be better?

    – Tim Baas
    May 7 '14 at 8:17












  • They both should be increased. See also stackoverflow.com/q/7325211/1016033

    – Alexey Ten
    May 7 '14 at 8:36











  • Wow, thanks dude! Never knew our settings were this low!

    – Tim Baas
    May 7 '14 at 9:53











  • I think this link can be really helpful with your configuration. Slowloris DoS Attack / Nginx Configuration

    – ngrammen
    Apr 17 at 8:24
















Why only one worker process? Have you seen serverfault.com/q/281581/211028

– Alexey Ten
May 7 '14 at 4:48





Why only one worker process? Have you seen serverfault.com/q/281581/211028

– Alexey Ten
May 7 '14 at 4:48













@AlexeyTen I don't know, it was like that when I first saw it. Would more worker_processes and less worker_connections be better?

– Tim Baas
May 7 '14 at 8:17






@AlexeyTen I don't know, it was like that when I first saw it. Would more worker_processes and less worker_connections be better?

– Tim Baas
May 7 '14 at 8:17














They both should be increased. See also stackoverflow.com/q/7325211/1016033

– Alexey Ten
May 7 '14 at 8:36





They both should be increased. See also stackoverflow.com/q/7325211/1016033

– Alexey Ten
May 7 '14 at 8:36













Wow, thanks dude! Never knew our settings were this low!

– Tim Baas
May 7 '14 at 9:53





Wow, thanks dude! Never knew our settings were this low!

– Tim Baas
May 7 '14 at 9:53













I think this link can be really helpful with your configuration. Slowloris DoS Attack / Nginx Configuration

– ngrammen
Apr 17 at 8:24





I think this link can be really helpful with your configuration. Slowloris DoS Attack / Nginx Configuration

– ngrammen
Apr 17 at 8:24










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