Login attacks

[Rick Stevens]

Gene Heskett wrote:
> On Tuesday 07 December 2004 17:46, Gerry Doris wrote:
> 
>>On Tue, 2004-12-07 at 15:24, Michael Yep wrote:
>>
>>>Hello
>>>
>>>In my LogWatch report I get many login attacks, many from the same
>>>IP address.
>>>
>>>sshd:
>>>    Authentication Failures:
>>>       root (218.232.109.187): 59 Time(s)
>>>       adm (218.232.109.187): 2 Time(s)
>>>       apache (218.232.109.187): 1 Time(s)
>>>       nobody (218.232.109.187): 1 Time(s)
>>>       operator (218.232.109.187): 1 Time(s)
>>>    Invalid Users:
>>>       Unknown Account: 43 Time(s)
>>>
>>>I have permitRootLogin set to NO, and I use strong passwords, but
>>>can I just add these IP addresses to hosts.deny?
>>>and if so how would I set that up
>>>
>>>
>>>
>>>Michael Yep
>>>Development / Technical Operations
>>>RemoteLink, Inc.
>>
>>I had so many problems with the 218.0.0.0/24 domain that I totally
>>blocked the entire domain.  I believe this domain is in Korea.
>>
>>--
>>Gerry Doris <gdoris at rogers.com>
> 
> 
> Another that bears blocking completely is 64.0.0.0/24 as its 100%
> spam of the non-edible variety.  Ditto for 66.0.0.0/24.
> 
> Anybody else have any more to contribute?

Whoa, buddy.  The entire 64.0.0.0/8 is NOT a spam source.  We have a
/19 in that space and we're not spammers.
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- Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
- VitalStream, Inc.                       http://www.vitalstream.com -
-                                                                    -
-        Brain:  The organ with which we think that we think.        -
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