400 bad request errors

[Maxim Dounin]

Hello!

On Mon, Sep 28, 2009 at 10:07:25AM -0400, pepejose wrote:

> hi 
> 
> i have several errors in my access_log
> 
> IP _ - [28/Sep/2009:15:56:33 +0200] "-" 400 0 "-" "-" "-"
> 
> 	
> why these errors occur?

These errors are "400 Bad Request", most likely just client 
connects without sending anything.  Some load balancers / health 
checks known to cause a lots of these.  

Maxim Dounin