{"id":296,"date":"2020-09-24T00:00:00","date_gmt":"2020-09-23T16:00:00","guid":{"rendered":"http:\/\/localhost:8092\/prolink-mrq-dos-and-ddos\/"},"modified":"2026-07-29T15:49:10","modified_gmt":"2026-07-29T07:49:10","slug":"prolink-mrq-dos-and-ddos","status":"publish","type":"post","link":"https:\/\/www.twpro-link.com\/en\/prolink-mrq-dos-and-ddos\/","title":{"rendered":"Understand DoS and DDoS Attacks in Seconds"},"content":{"rendered":"
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<\/figcaption><\/figure>\nA recent DDoS attack incident saw reports beginning as early as March of this year of surveillance cameras and NVRs being compromised, and on September 23, the Taiwan Computer Emergency Response Team \/ Coordination Center (TWCERT\/CC) also published news that many domestic hosting providers had suffered DDoS attacks, with the attacks possibly originating from a large number of compromised DVR surveillance systems domestically, affecting the websites and blogs of hosted customers. So what is a DDoS attack, and what protections exist against DoS?\n\nDDoS is one method within the broader category of DoS attacks, but in fact there are many different types of DoS attacks.\n

DoS\uff1a<\/h2>\nShort for Denial of Service, DoS refers to an attack whose goal is to prevent a computer or network from providing normal service, known as a DoS attack\n
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<\/figcaption><\/figure>\n

\u200bHackers continuously send requests, and the server, unable to handle the excessive volume, is ultimately overwhelmed. \u200b\u200b<\/h2>\n

Hacker<\/h2>\n
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Image<\/figcaption><\/figure>\n

DoS Attack<\/h2>\n

Targeted Host<\/h2>\n

\u200bDDoS\uff1a<\/h2>\n
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<\/figcaption><\/figure>\nShort for Distributed Denial of Service. This refers to multiple attackers in different locations simultaneously launching an attack against one or more targets, or a single attacker controlling multiple machines in different locations and using them to attack a victim simultaneously. Because the attack originates from\n
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<\/figcaption><\/figure>\npoints distributed across different locations, this type of attack is called a distributed denial-of-service attack, which greatly amplifies the power of the denial-of-service attack.\n

Hacker<\/h2>\n

DDoS Attack<\/h2>\n
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DDoS Attack<\/h2>\n

DDoS Attack<\/h2>\n
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<\/figcaption><\/figure>\n

Targeted Host<\/h2>\nWhat defenses are there for surveillance cameras and NVRs?\n\nDDoS attacks are difficult to prevent because they're disguised as seemingly normal requests, but defenses can still be strengthened in the following three main areas:\n
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\u25cf Strengthen the Firewall<\/h2>\nUse a high-performance firewall device to limit abnormal IP requests, reduce invalid data that consumes large amounts of bandwidth, and block potential DDoS attacks.\n
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<\/figcaption><\/figure>\n

\u25cf Upgrade Device Performance and Specifications<\/h2>\nUpgrading device performance buys more buffer time when under attack, allowing a real-time response to the attack pattern without letting the surveillance equipment go down \u2014 minimizing the resulting damage.\n
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<\/figcaption><\/figure>\n

\u25cf Monitor Internal Network Devices<\/h2>\nA common security practice is to install a firewall to defend against hacker attacks coming from the external network, maintaining network security control. But the internal network\n
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<\/figcaption><\/figure>\nis easily overlooked. CyberVigilant, a product from the 25-year-old British security brand IndigoVision, can monitor internal network devices to defend against suspicious DoS attacks \u2014 when an anomaly occurs, it immediately connects to the control center, detects the abnormal traffic, and sends an alert to the console!!\n

\u200b<\/h2>\n
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<\/figcaption><\/figure>\nindigovision_cybervigilant_specification_catalog.pdf\n

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A recent wave of DDoS attacks - reports since March have linked surveillance cameras and NVRs …<\/p>","protected":false},"author":1,"featured_media":291,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_angie_page":false,"page_builder":"","footnotes":""},"categories":[111],"tags":[],"class_list":["post-296","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mrq"],"_links":{"self":[{"href":"https:\/\/www.twpro-link.com\/en\/wp-json\/wp\/v2\/posts\/296","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.twpro-link.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.twpro-link.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.twpro-link.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.twpro-link.com\/en\/wp-json\/wp\/v2\/comments?post=296"}],"version-history":[{"count":6,"href":"https:\/\/www.twpro-link.com\/en\/wp-json\/wp\/v2\/posts\/296\/revisions"}],"predecessor-version":[{"id":1987,"href":"https:\/\/www.twpro-link.com\/en\/wp-json\/wp\/v2\/posts\/296\/revisions\/1987"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.twpro-link.com\/en\/wp-json\/wp\/v2\/media\/291"}],"wp:attachment":[{"href":"https:\/\/www.twpro-link.com\/en\/wp-json\/wp\/v2\/media?parent=296"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.twpro-link.com\/en\/wp-json\/wp\/v2\/categories?post=296"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.twpro-link.com\/en\/wp-json\/wp\/v2\/tags?post=296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}