2011:22:42:57

Posted in: #Nginx

Below are little part of my access_log

118.186.8.50 - - [19/Dec/2011:22:42:57 +0800] "-" 400 0 "-" "-"
05
118.186.8.50 - - [19/Dec/2011:22:42:57 +0800] "-" 400 0 "-" "-"
06
118.186.8.50 - - [19/Dec/2011:22:42:57 +0800] "-" 400 0 "-" "-"
07
118.186.8.50 - - [19/Dec/2011:22:42:57 +0800] "-" 400 0 "-" "-"
08
118.186.8.50 - - [19/Dec/2011:22:42:57 +0800] "-" 400 0 "-" "-"
09
220.173.136.39 - - [19/Dec/2011:22:43:22 +0800] "-" 400 0 "-" "-"
10
220.173.136.39 - - [19/Dec/2011:22:43:22 +0800] "-" 400 0 "-" "-"
11
220.173.136.39 - - [19/Dec/2011:22:43:22 +0800] "-" 400 0 "-" "-"
12
220.173.136.39 - - [19/Dec/2011:22:43:22 +0800] "-" 400 0 "-" "-"
13
220.173.136.39 - - [19/Dec/2011:22:43:22 +0800] "-" 400 0 "-" "-"
14
220.173.136.39 - - [19/Dec/2011:22:43:22 +0800] "-" 400 0 "-" "-"

And the volume was very huge, some like one hundred thousand of these 400 request per second. And I'm pretty sure there are no errors on my site in that period of time.(No error report and I didn't change the source code)

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@Odierno851

Check and see if the ip address causing the 400 is using Google Chrome. Chrome uses pre-connection to establish several connection with server, and close them if not used.

Since no request is made in the connection, nginx will record this error.

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@Nickens628

Someone was Fuzzing your server. Also see Wikipedia.

Basically involves sending rapid blocks of invalid data to see if anything breaks.

Nginx is set to return a 400 error error when no request data is sent.

Don't worry about it. Nginx can just keep on bouncing them forever without breaking a sweat.

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: Why there suddenly were so many 400 request in my access log? Below are little part of my access_log 118.186.8.50 - - [19/Dec/2011:22:42:57 +0800] "-" 400 0 "-" "-" 05 118.186.8.50 - - [19/Dec/2011:22:42:57

More posts by @Si4351233

: Short and friendly URL for affiliate links This is my first question here on Pro Webmaster... I'm really glad to be here! I believe this question will have a simple answer but I'm starting

: Sign up for Google webmaster tools. Submit your site index. Make sure it gets updated every time you change a page to indexable If Google doesn't read and index the page in a month, go

: What IP address range do URLFetch queries come from? I want to set my firewall to only allow HTTP connections that originate from Apps Script. My Google Spreadsheets project uses URLFetch make

: Yes you can have your domain and hosting service with two different people. There's no rule like you must host

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