Re: [squid-users] Funny Error Message

On 22/10/11 01:22, Evan Pierce wrote:
> I am getting the following error message in a squid access.log file.
>
> 192.168.17.23 TCP_DENIED/400 1608 NONE error:unsupported-request-method
> - NONE/- text/html
>
> I am interested in what could be causing this.
>
> Evan

An unsupported HTTP request method was received from the client.

What that means depends on your Squid version. Which you omitted. So in
overview:

The older Squid series only accepted a fixed set of standard HTTP
methods. Which excluded WebDAV, RPC and modern RESTful protocol extensions.
  * If it is happening often on an older Squid you should look at an
upgrade and see if it disappears.

The currently supported releases all accept any valid set of characters
in the method tag. It can still error, but only when traffic which is
not valid HTTP arrives (a common event with intercepted traffic).
  * If it is happening often on a current Squid it is worthwhile
investigating the request packets and taking action to prevent it in future.

  * If it is only happening occasionally you can ignore it. Or not. Up
to you.

HTH

Amos

-- 
Please be using
   Current Stable Squid 2.7.STABLE9 or 3.1.16
   Beta testers wanted for 3.2.0.13