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Does ASL work with Nginx?

Yes. Nginx is protected through the ASL T-WAF module.

Note: Do not use the embedded modsecurity module for nginx. The opensource modsecurity module for nginx, although advertised as "stable" by the website, is very unstable and unreliable and should not be used at this time. Please see the github website for details on bugs in the nginx modsecurity module:

Note: Libmodsecurity 3.0 for nginx is currently in an "Alpha" state, and is not feature complete.

How to install the T-WAF

As root, run this command:

yum install asl-waf-module

How to configure the T-WAF for nginx

Step 1) Log into ASL.

Step 2) Click on the "Configuration" tab.

Step 3) Click on the "WAF" tab and select "WAF configuration".

Step 4) Click the "Add" button.

Step 5) Select "Local Web Server" from the "Add protection for" drop down.

Step 6) Select the port that Nginx runs on. Normally this is port 80.

Optional Step 7) Check the SSL box (if you want to protect the SSL service(s) provided by Nginx)

Enter the file system path to your SSL certificate, and SSL key in the "Path to SSL Certificate" and "Path to SSL Key file" boxes.

Step 8) Click Save

Note: Nginx does not support the WAF in embedded mode.

NGINX with Libmodsecurity 3.x

Note: This requires nginx-plus from

Note: libmodsecurity 3.x does not have feature parity with modsecurity 2.x, libmodsecurity does not support all the features in modsecurity. Please see the modsecurity_rule_families document.

1) Install nginx-plus-module-modsecurity from the nginx-plus repo

 # Atomic or ASL repo
 yum install nginx nginx-module-modsecurity
 # Nginx Plus Repo
 yum install nginx-plus-module-modsecurity

2) enable modsecurity in /etc/nginx/nginx.conf

 load_module modules/;

3) extract the archive and copy the contents to the rule and config directories:

 tar xvf nginx-waf-201709121114.tar.gz
 mkdir -p /etc/httpd/modsecurity.d/
 cp rules/* /etc/httpd/modsecurity.d/
 cp rules/conf/tortix_waf.conf /etc/httpd/modsecurity.d/

4) Configure rule classes to activate in 00_mod_security.conf, and copy to nginx

 cp rules/conf/00_mod_security.conf /etc/nginx/conf.d/

5) Restart nginx

 service nginx restart
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