Re: [squid-users] kernel: NET: 567 messages suppressed

Muhammad Junaid wrote:
>
> Hi,
>
>
>
> I am getting following messages in my /var/log/messages. Not continuous
> but often.
>
>
> kernel: NET: 555 messages suppressed.
> kernel: NET: 556 messages suppressed.
> kernel: NET: 546 messages suppressed.
> kernel: NET: 557 messages suppressed.
>
>
> I have RedHat 7.3 with Kernel 2.4.18 and running squid 2.5 (Transparent).
> I have Traced back to its source in /usr/src/linux-2.4/net/core/utils.c
> and found
>
>
> * This enforces a rate limit: not more than one kernel message
> * every 5secs to make a denial-of-service attack impossible.
>
> ....
> if (lost)
>
> printk(KERN_WARNING "NET: %d messages
> suppressed.\n", lost);
>
> return 1;
> ...
>
> Is the kernel taking many concurrent requests as DOS attack and
> suppressing the requests. Can any one help how this can be resolved?
> Thanks in advance.

 Possibly not related to squid.

 You should examine /var/log/messages carefully , and you will
 find out which message is being supressed from continous reporting.

 Check

 % dmesg

 Also

 M.

>
>
>
> Muhammad Junaid
>
> CIS, Pak.
>
>

-- 
 'Time is a consequence of Matter thus
 General Relativity is a direct consequence of QM
 (M.E. Mar 2002)