{"id":24632,"date":"2023-06-06T15:30:51","date_gmt":"2023-06-06T15:30:51","guid":{"rendered":"https:\/\/nsfocusglobal.com\/?p=24632"},"modified":"2026-04-17T18:07:41","modified_gmt":"2026-04-17T18:07:41","slug":"nsfocus-lua-based-anti-ddos-solution","status":"publish","type":"post","link":"https:\/\/nsfocusglobal.com\/pt-br\/nsfocus-lua-based-anti-ddos-solution\/","title":{"rendered":"NSFOCUS Lua-based Anti-DDoS Solution"},"content":{"rendered":"\n

<\/p>\n\n\n\n

Limitations of Pre-configured DDoS Protection Policies<\/h2>\n\n\n\n

Lots of organizations have realized that DDoS defense is critical to the availability of network infrastructure. But most Anti-DDoS solutions in the market still rely on pre-configured protection policies with multiple threshold options to offer multi-layered protection at different levels. However, this approach has some limitations:<\/p>\n\n\n\n

    \n
  1. The pre-configured protection policy may sometimes not effectively prevent certain DDoS attacks, such as unconventional TCP\/UDP protocol or multi-layered attacks.<\/li>\n\n\n\n
  2. The threshold-based policy is not possible to perform arithmetic or logical operations on any data in the packets, such as payload [16] = (payload [14] &0xf0) | (payload [15] & 0xf).<\/li>\n\n\n\n
  3. For unknown threats, developing protective algorithms or upgrading packages always requires a long time.<\/li>\n\n\n\n
  4. Users can obtain a suitable protection policy by performing auto-learning, but it would take hours or even days. That will increase the mitigation time and render the protection policy ineffective.<\/li>\n<\/ol>\n\n\n\n

    Considering these limitations, we integrated Lua scripting language into NSFOCUS Anti-DDoS solution.<\/p>\n\n\n\n

    NSFOCUS Lua-based Anti-DDoS Solution<\/h2>\n\n\n\n

    What is Lua?<\/p>\n\n\n\n

    Lua is a dynamically typed language that is intended for use as an extension or scripting language. It is compact enough to fit on various host platforms and supports only a small number of atomic data structures, such as boolean values, numbers (double-precision floating point by default), and strings. However, typical data structures like arrays, sets, lists, and records can be represented using Lua’s single native data structure, the table, which is a heterogeneous associative array. In addition, Lua uses JIT (just-in-time) compilation which gives it performance comparable to compiled languages like C while retaining its status as a scripting language.<\/p>\n\n\n

    \n
    \"Red<\/a><\/figure>\n<\/div>\n\n\n

    Because of these advantages, we can redesign the protective algorithm and generate customized rules immediately when emerging DDoS attacks and unknown threats occur. First, we can use the traffic auto-leaning function to gain the current traffic trends and characteristics of the emerging DDoS attack or unknown threat. After performing analysis and verification, the expert team can generate a Lua script according to the extracted signature and characteristics. Lua script generation will only take few minutes, and users can perform it on the Anti-DDoS solution to obtain the latest protection capability immediately.<\/p>\n\n\n\n

    Undoubtedly, Lua scripting language-based Anti-DDoS solution facilitates the development of rapid countermeasures to new threats.<\/p>\n\n\n\n

    Read more about NSFOCUS Anti-DDoS Solution<\/a>.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"

    Limitations of Pre-configured DDoS Protection Policies Lots of organizations have realized that DDoS defense is critical to the availability of network infrastructure. But most Anti-DDoS solutions in the market still rely on pre-configured protection policies with multiple threshold options to offer multi-layered protection at different levels. However, this approach has some limitations: Considering these limitations, […]<\/p>\n","protected":false},"author":1,"featured_media":8988,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[3],"tags":[372],"class_list":["post-24632","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-ddos-attack"],"acf":[],"yoast_head":"\nNSFOCUS Lua-based Anti-DDoS Solution - NSFOCUS<\/title>\n<meta name=\"description\" content=\"Most Anti-DDoS solutions in the market still rely on pre-configured protection policies with multiple threshold options. 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