[cups.general] DDos attack

Michael Sweet mike at easysw.com
Tue Sep 12 06:14:40 PDT 2006


Komal Shah wrote:
> I am receiving following error message in error_log.
> 
> W [10/Sep/2006:04:03:07 +0100] Possible DoS attack - more than 10 
> clients connecting from localhost!
> W [10/Sep/2006:04:04:07 +0100] Possible DoS attack - more than 10 
> clients connecting from localhost!
> W [10/Sep/2006:04:05:08 +0100] Possible DoS attack - more than 10 
> clients connecting from localhost
> 
> lpstat returns
> 
> lpstat: get-classes failed: server-error-service-unavailable
> lpstat: get-printers failed: server-error-service-unavailable
> lpstat: get-printers failed: server-error-service-unavailable
> 
> Is there something to worry about?

Probably not, but you probably want to adjust the MaxClientsPerHost
setting to avoid these errors.  Depending on the version of CUPS you
are using, this might actually be a bug that was fixed in a later
release...

.....

In the future, please include the operating system and version of
CUPS you are using.  That will help us provide better assistance...

-- 
______________________________________________________________________
Michael Sweet, Easy Software Products           mike at easysw dot com
Internet Printing and Document Software          http://www.easysw.com




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