( >= 0.6) Allows 10 open connections in each state for a total of 30 concurrent connections per IP address,Īnd ignores limits for IP addresses 127.0.0.1 and ::1: These directives no longer apply to the latest version of this module: Directive This directive overrides the value of the LocalIPs directive. Space-delimited list of IPv4 and IPv6 addresses, ranges, or CIDRs which should not be subjected to any limits by this module. Maximum simultaneous connections in WRITE state per IP address. Maximum simultaneous connections in READ state per IP address. Maximum simultaneous idle connections per IP address. This limit takes precedence over all other limits. Maximum simultaneous connections in any state per IP address. Using mod_antiloris to prevent more than 16 concurrent connections from the same IP.Using mod_reqtimeout to drop connections that don't meet the data transfer rate requirement and.The above example mitigates Slowloris DoS attacks by: LoadModule antiloris_module modules/mod_antiloris.so LoadModule reqtimeout_module modules/mod_reqtimeout.so Adding the following directive to your Apache configuration file ( nf or somewhere that is Included like /etc/apache2//mod_nf):.Copying mod_antiloris.so to your Apache modules folder ( /usr/lib64/apache2/modules/ on some Linux systems) and.
Block slowloris attack install#
If the module is available in binary format ( mod_antiloris.so), you can install it by:
Pre-built modules might exist on the project's releases page. Comparison with Other Mitigation Strategies.It works by preventing new connections from the same IP address after the connection count of the IP exceeds a configurable limit. Mod_antiloris is an Apache HTTP Server module that helps to mitigate Slowloris denial of service (DoS) attacks.
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