BitNinja · WAF

Web Application Firewall for Hosting Providers

BitNinja WAF inspects HTTP traffic and blocks malicious requests before they reach websites on your servers. It filters SQL injection, XSS, CMS exploits and other suspicious web requests. Designed for hosting providers, server administrators and infrastructure operators.

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Web Application Firewall — BitNinja

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Key WAF benefits

Activate the WAF module and keep CMS traffic filtered without the ops overhead.

  1. 01

    Easy to manage

    Central configuration with per-domain filter adjustments, built for shared server fleets.

  2. 02

    Proactive

    Continuously updated rules for emerging CMS threats, with a low false-positive rate.

  3. 03

    Effective

    Auto-rejects suspicious web requests so attacks never reach the application.

sys://definition

What is a Web Application Firewall (WAF)?

A Web Application Firewall (WAF) analyzes web and HTTP traffic and blocks malicious requests before they reach the protected website or web application. It inspects incoming requests against security rules, then lets legitimate traffic through. BitNinja WAF applies that website firewall on Linux web servers so hosting providers and sysadmins can protect many sites from one place.

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What attacks does BitNinja WAF protect against?

BitNinja WAF stops SQL injection, Cross-Site Scripting (XSS), CMS exploits and other malicious HTTP requests before they reach the application.

  1. 01

    SQL injection

    Blocks requests that try to manipulate databases through the web application.

  2. 02

    Cross-Site Scripting (XSS)

    Filters requests that attempt to inject malicious scripts into websites.

  3. 03

    CMS exploits

    Applies rules for common CMS vulnerabilities on hosted websites.

  4. 04

    Malicious HTTP requests

    Rejects suspicious web traffic that does not belong in a legitimate request.

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How does BitNinja WAF work?

BitNinja WAF inspects incoming HTTP requests against cloud-updated rules, blocks malicious traffic, and forwards legitimate requests to the website or application.

  1. 01

    Incoming web request

    HTTP and HTTPS requests to hosted sites hit BitNinja WAF first.

  2. 02

    Traffic inspection

    The WAF examines each request against its ruleset. It runs as a standalone engine, so it does not depend on Apache, NGINX or LiteSpeed modules.

  3. 03

    WAF rules and threat detection

    Cloud-updated rules, including CMS-specific patterns, evaluate the request in real time.

  4. 04

    Malicious request blocked

    Requests that match attack patterns are rejected automatically.

  5. 05

    Legitimate traffic reaches the application

    Clean requests continue to the website, so legitimate visitors are not interrupted.

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Core BitNinja WAF capabilities

Per-domain controls, CMS-focused rules, and less wasted work on the origin.

01 // CUSTOM

Customizable WAF

Domain-based patterns let you set security levels per website. Tune filters for each domain on the server instead of forcing one policy on every site.

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02 // CMS

Advanced CMS protection

Custom WAF rules cover WordPress, Joomla, Drupal and more, and update as new vulnerabilities appear. That keeps common hosted CMS stacks protected at the request layer.

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03 // SSL

Load reduction

Blocking malicious requests before they reach applications reduces unnecessary work on the web server. SSL terminating also offloads HTTPS connections, with no prior setup required.

Reduce server load →

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Web Application Firewall built for hosting providers

BitNinja WAF is a web application firewall for hosting providers: one module on the Linux server, many websites, and central management.

  1. 01

    Scalability

    It fits environments that host many domains on shared Linux servers, not only a single application.

    Shared hosting security →
  2. 02

    Flexible security management

    Filter adjustments and security levels can be set per domain from the same central configuration.

  3. 03

    Operational efficiency

    Proactive blocking and a low false-positive rate mean fewer junk requests hitting customer sites.

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CMS protection for hosted websites

BitNinja WAF includes rules for the CMS platforms most often hosted on Linux servers: WordPress, Joomla and Drupal.

sys://user-signal

“The whole platform is feature-rich, especially with the WAF module. It has everything that a web hosting company or sysadmin needs.”
MissGroup

sys://faq

Web Application Firewall FAQ

WAF protection, CMS coverage, per-domain controls and hosting fit.

What is a Web Application Firewall?

A Web Application Firewall (WAF) analyzes HTTP traffic and blocks malicious requests before they reach a website or web application. BitNinja WAF does this on the Linux server, in front of the hosted sites.

How does a Web Application Firewall work?

It inspects each incoming web request against security rules, then blocks matches and forwards the rest to the application. BitNinja WAF does this in real time with cloud-updated rules.

What attacks can BitNinja WAF block?

BitNinja WAF can block SQL injection, Cross-Site Scripting (XSS), CMS exploits and other malicious HTTP requests. Suspicious requests are rejected before they reach the application.

Can BitNinja WAF protect WordPress and other CMS websites?

Yes. It includes WAF rules for WordPress, Joomla, Drupal and more. Those rules update as new CMS vulnerabilities appear.

Can BitNinja WAF security be configured per domain?

Yes. Domain-based patterns let you set security levels and filter adjustments per website. Configuration stays central, with per-domain control for shared servers.

Is BitNinja WAF designed for hosting providers?

Yes. It is aimed at hosting providers, server administrators and infrastructure operators. One module covers many sites on a shared server without a separate WAF product per domain.

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