{"id":10248,"date":"2025-07-06T01:28:17","date_gmt":"2025-07-05T17:28:17","guid":{"rendered":"https:\/\/www.stonecdn.com\/?p=10248"},"modified":"2025-07-06T01:28:18","modified_gmt":"2025-07-05T17:28:18","slug":"%e8%a2%abddos%e6%94%bb%e5%87%bb%e4%ba%86%e6%80%8e%e4%b9%88%e5%8a%9e%ef%bc%9f%e7%b4%a7%e6%80%a5%e8%87%aa%e6%95%91%e6%89%8b%e5%86%8c%ef%bc%88%e9%99%84%e9%95%bf%e6%95%88%e6%96%b9%e6%a1%88%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.stonecdn.com\/en\/10248-html","title":{"rendered":"What to do if you are attacked by ddos? Emergency Self-Help Manual (with Long-Term Solution)"},"content":{"rendered":"

At 3:00 a.m., the cell phone alarm blew up - the server traffic soared to 300 times the usual, and players dropped out like crazy. As a boil bald three technical director of the old gun, I use blood and tears experience summarized this set of The \"Golden 30\" Emergency Procedure<\/strong> + eradication program<\/strong>The<\/p>\n\n\n\n

\n\n\n\n

I. At the outbreak of an attack: regaining control (0-30 minutes)<\/strong><\/h3>\n\n\n\n

1. Rapid diagnosis of the type of attack<\/strong><\/h4>\n\n\n\n
    \n
  • symptomatic<\/strong>\u00a0\u2192\u00a0Type of attack<\/strong>\u00a0\u2192\u00a0Response tools<\/strong><\/li>\n<\/ul>\n\n\n\n
    ! Players transient\/lagging en masse \u2192 UDP flooding \u2192 Enable traffic cleaning\n! Login\/payment interface paralyzed \u2192 CC attack \u2192 interface flow restriction + human verification\n! Server connection count full \u2192 TCP SYN Flood \u2192 kernel tuning<\/code><\/pre>\n\n\n\n
    2. Three tricks to stop the bleeding in an emergency<\/strong><\/h4>\n\n\n\n
      \n
    • Cloud Backend Seconds Cleaning<\/strong>(available on all vendor consoles):<\/li>\n<\/ul>\n\n\n\n
      # Simultaneous blocking of TOP10 attacking IP segments (extracted from monitoring logs)\nfor ip in $(cat attack_ips.txt | head -10); do\n  iptables -A INPUT -s $ip -j DROP\ndone<\/code><\/pre>\n\n\n\n
      Core Interface Failure<\/strong><\/p>\n\n\n\n
      # Flow limiting on login interface in Nginx (1IP\/sec)\nlocation \/login {\n  limit_req zone=one burst=5 nodelay;\n  limit_req_status 429; # return 429 status code\n}<\/code><\/pre>\n\n\n\n
        \n
      • Operational downgrades<\/strong>: Turn off real-time voice\/world channels and keep the core links for combat and payment.<\/li>\n<\/ul>\n\n\n\n
        \n
        Deadly Misconceptions<\/strong>::
        \u2718 Blindly rebooting servers (may trigger hacker backdoors)
        \u2718 Manually adjust routing (prone to network-wide paralysis)<\/p>\n<\/blockquote>\n\n\n\n
        \n\n\n\n
        II. After a pause in the attack: building a steel barrel defense<\/strong><\/h3>\n\n\n\n
        1. Protocol layer encryption - making it invisible to hackers<\/strong><\/h4>\n\n\n\n
          \n
        • dynamic key exchange (DKE)<\/strong>(countering protocol forgery):<\/li>\n<\/ul>\n\n\n\n
          \/\/ StoneCDN SDK example: changing keys every hour\nStoneSDK.RotateKey(interval: 3600); <\/code><\/pre>\n\n\n\n
            \n
          • Private Agreement Confusion<\/strong>(CDN5 core technology):
            By randomizing the packet characteristics, it makes it impossible for the attacking traffic to identify the protocol structure.<\/li>\n<\/ul>\n\n\n\n
            2. System layer hardening - plugging underlying vulnerabilities<\/strong><\/h4>\n\n\n\n
            # Anti-SYN Flood kernel parameters (mandatory for all Linux servers)\necho \"net.ipv4.tcp_syncookies=1\" >> \/etc\/sysctl.conf\necho \"net.ipv4.tcp_max_syn_backlog=2048\" >> \/etc\/sysctl.conf\nsysctl -p<\/code><\/pre>\n\n\n\n
            3. Architecture-level protection - business never falls offline<\/strong><\/h4>\n\n\n\n
              \n
            • StoneCDN Solutions<\/strong>::<\/li>\n<\/ul>\n\n\n\n
              \"\"<\/figure>\n\n\n\n
                \n
              • dominance<\/strong>: $1000 machine frame rate loss <5%, memory footprint 18MB<\/li>\n\n\n\n
              • be applicable<\/strong>: Small to medium sized games\/APP (protection cap 300Gbps)<\/li>\n<\/ul>\n\n\n\n
                CDN5 program<\/strong>::<\/p>\n\n\n\n
                \"\"<\/figure>\n\n\n\n
                  \n
                • dominance<\/strong>: Carrying 510Gbps+ Hybrid Attacks<\/li>\n\n\n\n
                • consideration (in share dealing)<\/strong>: deep tuning required (asynchronous loading conflicts need to be fixed manually)<\/li>\n<\/ul>\n\n\n\n
                  III. Ultimate Defense: Either One or the Other by Business Genetics<\/strong><\/h3>\n\n\n\n
                  Scenario 1: Small and medium-sized teams seek stability and peace of mind \u2192 StoneCDN<\/strong><\/h4>\n\n\n\n
                    \n
                  • Integration speed<\/strong>: Unity plugin imported in 10 minutes, API only 3 functions<\/li>\n\n\n\n
                  • Dynamic degradation<\/strong>: Use light encryption (power-saving 30%) for weak attacks, cut AES-256 for strong attacks<\/li>\n\n\n\n
                  • cost comparison<\/strong>: indicators traditional high defense IPStoneCDN300G protection \u00a5 90,000 \/ month \u00a5 4800 \/ month frame rate impact cleaning delay 200ms + thousand dollar machine 38 \u2192 36fps<\/li>\n<\/ul>\n\n\n\n
                    Scenario 2: Technical team pursues extreme resistance to beatings \u2192 CDN5<\/strong><\/h4>\n\n\n\n
                      \n
                    • anti-mixing attack<\/strong>::\n
                        \n
                      • 510Gbps UDP flood + 870,000\/sec CC attack full blocking<\/li>\n\n\n\n
                      • \"One machine, one secret\" dynamic key (20 times more expensive for hackers to forge)<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                      • QUIC Acceleration<\/strong>::
                        Southeast Asian player latency from 186ms \u2192 62ms (retention +14%)<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"
                        Three o'clock in the morning, the cell phone alarm blew up - the server traffic soared to 300 times the usual, players crazy drop line. As a boil bald three technical director of the old gun, I use the blood and tears experience [...]<\/p>","protected":false},"author":1,"featured_media":10251,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[25,26],"class_list":["post-10248","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-ddos"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.stonecdn.com\/en\/wp-json\/wp\/v2\/posts\/10248","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.stonecdn.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.stonecdn.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.stonecdn.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.stonecdn.com\/en\/wp-json\/wp\/v2\/comments?post=10248"}],"version-history":[{"count":1,"href":"https:\/\/www.stonecdn.com\/en\/wp-json\/wp\/v2\/posts\/10248\/revisions"}],"predecessor-version":[{"id":10252,"href":"https:\/\/www.stonecdn.com\/en\/wp-json\/wp\/v2\/posts\/10248\/revisions\/10252"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.stonecdn.com\/en\/wp-json\/wp\/v2\/media\/10251"}],"wp:attachment":[{"href":"https:\/\/www.stonecdn.com\/en\/wp-json\/wp\/v2\/media?parent=10248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.stonecdn.com\/en\/wp-json\/wp\/v2\/categories?post=10248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.stonecdn.com\/en\/wp-json\/wp\/v2\/tags?post=10248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}