Re: use ipchains to block all ports > 60,000

From: Tim Haynes (usenet-20030827_at_stirfried.vegetable.org.uk)
Date: 08/27/03


Date: Wed, 27 Aug 2003 22:55:54 +0100

Neil Sandow <rxlist@rxlist.com> writes:

> On Thu, 28 Aug 2003, Chris McDonald wrote:
>
>> In comp.os.linux.security you write:
>>
>> >Hmmm very different.
>>
>> >`ls /proc/[0-9]* | wc -l' returns 377 (every time)
>>
>> >`ps auxww | wc -l' returns 28 (every time)
>>
>>
>> Try: ls -d /proc/[0-9]* | wc -l'
>>
>>
>>
> Thanks, now I'm getting 27's and 28's should they always match? -ns

Yes they should, to within 1 (depending on race-conditions whether the ls
and wc processes are around long enough to count themselves, but more often
than not they're equal).

This is a favourable sign, assuming that you don't have an LKM loaded
masking the contents of /proc.

~Tim

-- 
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