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Accepted
nicolaa
Asked:2020-12-03 14:26:02 +0000 UTC2020-12-03 14:26:02 +0000 UTC

VPS 上的 CPU 利用率几乎 100%

  • 772

关于 VPS 的信息

Процессор   10 X Intel Core Processor (Skylake) 2200.002 MHz
Оперативная память  8522 / 11984 MiB
Размер дискового пространства   0.99 TiB
Файл подкачки (swap)    1292 MiB
Средняя загрузка (1, 5, 15 мин) 101.26 53.76 41.72
Продолжительность работы    3 days 1 hours 20 minutes
Количество процессов    493
Description:    Debian GNU/Linux 8.11 (jessie)

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进程列表

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命令mysqladmin -u root -p status

Uptime: 3439  Threads: 65  Questions: 2303950  Slow queries: 6111  Opens: 586  Flush tables: 1  Open table
s: 400  Queries per second avg: 669.947

翻译：

Время, проведённое на сайте: 3439 Темы: 65 Вопросы: 2303950 Медленные запросы: 6111 Открывает: 586 Таблицы флеша: 1 Открыть стол
s: 400 Количество запросов в секунду: 669.947

Количество запросов в секунду: 669.947每秒向数据库发送 66.9 万个请求吗？

在哪里挖？

vps

1 个回答

  1. Best Answer

    也许有人会派上用场
    我浏览了网站的日志，access.log发现每秒，甚至更频繁地，某个 SemrushBot 访问该网站

    46.229.168.130 - - [04/Dec/2018:10:20:20 +0300] "GET /ugolok-alyuminievyj-40 HTTP/1.1" 200 296 "-" "Mozilla/5.0 (compatible; SemrushBot/2~bl; +http://www.semrush.com/bot.html)"
46.229.168.137 - - [04/Dec/2018:10:20:21 +0300] "GET /shina-alyuminievaya-12x150 HTTP/1.0" 200 535 "-" "Mozilla/5.0 (compatible; SemrushBot/2~bl; +http://www.semrush.com/bot.html)"
46.229.168.137 - - [04/Dec/2018:10:20:21 +0300] "GET /shina-alyuminievaya HTTP/1.1" 200 300 "-" "Mozilla/5.0 (compatible; SemrushBot/2~bl; +http://www.semrush.com/bot.html)"
46.229.168.132 - - [04/Dec/2018:10:20:22 +0300] "GET /setka-riflenaya-dlya?add-to-cart=41855 HTTP/1.0" 200 534 "-" "Mozilla/5.0 (compatible; SemrushBot/2~bl; +http://www.semrush.com/bot.html)"
46.229.168.132 - - [04/Dec/2018:10:20:22 +0300] "GET /setka-riflena?add-to-cart=41855 HTTP/1.1" 200 297 "-" "Mozilla/5.0 (compatible; SemrushBot/2~bl; +http://www.semrush.com/bot.html)"

    设置机器人的查看限制

    .htaccess

    RewriteCond %{HTTP_USER_AGENT} SemrushBot                                                                 
RewriteRule ^.* - [F,L]                                                                                   

RewriteCond %{HTTP_USER_AGENT} SemrushBot/2~bl                                                            
RewriteRule ^.* - [F,L]                                                                                   

Order allow,deny                                                                                          
allow from all                                                                                            
Deny from 46.229.168.

    按名称 + 按 IP

    robots.txt

    User-agent: SemrushBot                                                                                    
Disallow: /                                                                                               
User-agent: SemrushBot/2~bl                                                                               
Disallow: /

    负载降至 10 以下，但机器人仍然访问该站点，但已经看到 403 错误

    • 0

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