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Date:      Mon, 11 Oct 2004 05:29:55 -0500
From:      uidzero <uidzero@one-arm.com>
To:        Rob <spamrefuse@yahoo.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Adding network & IP to hosts.deny
Message-ID:  <416A60A3.8060906@one-arm.com>
In-Reply-To: <416A6062.9080106@yahoo.com>
References:  <!~!UENERkVCMDkAAQACAAAAAAAAAAAAAAAAABgAAAAAAAAArvdSa/sjb0OI1eLKLXuK1sKAAAAQAAAAnNdJfVuVREajW0jiKTPoYAEAAAAA@spd.nu> <416A5CF6.20508@one-arm.com> <416A6062.9080106@yahoo.com>

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Rob wrote:

> uidzero wrote:
>
>> Pelle Andersson wrote:
>>
>>> Hi!
>>>
>>> I have a lot of login attempts from various networks and IP addresses
>>> on my FBSD 4.10 server. I have read the man pages for hosts.deny but
>>> do not understand how to add networks and IP addresses to it.
>>>
>>
>> I use "/etc/rc.ipfw"...
>>
>>
>> ${fwcmd} add 300 deny IP from 24.19.0.105 to any
>> ${fwcmd} add 301 deny IP from 24.79.68.179 to any
>> ${fwcmd} add 400 deny IP from 61.100.180.125 to any
>> ${fwcmd} add 401 deny IP from 61.206.125.28 to any
>> ${fwcmd} add 402 deny IP from 61.211.239.236 to any
>> ${fwcmd} add 500 deny IP from 63.144.19.6 to any
>> ${fwcmd} add 501 deny IP from 64.246.20.123 to any
>> ${fwcmd} add 502 deny IP from 66.223.46.129 to any
>> ${fwcmd} add 503 deny IP from 67.81.127.99 to any
>> ${fwcmd} add 600 deny IP from 81.223.99.90 to any
>> ${fwcmd} add 700 deny IP from 140.112.124.123 to any
>> ${fwcmd} add 701 deny IP from 159.226.2.161 to any
>> ${fwcmd} add 702 deny IP from 163.25.65.3 to any
>> ${fwcmd} add 703 deny IP from 193.145.87.3 to any
>> ${fwcmd} add 800 deny IP from 202.57.191.179 to any
>> ${fwcmd} add 801 deny IP from 202.226.185.150 to any
>> ${fwcmd} add 810 deny IP from 203.71.62.9 to any
>> ${fwcmd} add 113 deny IP from 203.98.166.25 to any
>> ${fwcmd} add 812 deny IP from 203.115.96.151 to any
>> ${fwcmd} add 813 deny IP from 203.169.248.5 to any
>> ${fwcmd} add 814 deny IP from 203.186.157.37 to any
>> ${fwcmd} add 830 deny IP from 205.209.141.50 to any
>> ${fwcmd} add 870 deny IP from 209.88.93.138 to any
>> ${fwcmd} add 871 deny IP from 209.172.103.235 to any
>> ${fwcmd} add 880 deny IP from 210.204.129.11 to any
>> ${fwcmd} add 890 deny IP from 211.60.219.250 to any
>> ${fwcmd} add 891 deny IP from 211.221.246.28 to any
>> ${fwcmd} add 892 deny IP from 211.251.71.2 to any
>> ${fwcmd} add 893 deny IP from 211.252.9.126 to any
>> ${fwcmd} add 940 deny IP from 216.29.112.126 to any
>> ${fwcmd} add 950 deny IP from 217.172.182.148 to any
>> ${fwcmd} add 960 deny IP from 218.21.129.105 to any
>> ${fwcmd} add 961 deny IP from 218.49.183.17 to any
>> ${fwcmd} add 962 deny IP from 218.102.19.78 to any
>> ${fwcmd} add 963 deny IP from 218.237.66.152 to any
>> ${fwcmd} add 970 deny IP from 220.64.223.249 to any
>> ${fwcmd} add 971 deny IP from 220.73.215.151 to any
>> ${fwcmd} add 980 deny IP from 221.3.131.80 to any
>> ${fwcmd} add 981 deny IP from 221.12.11.118 to any
>> ${fwcmd} add 982 deny IP from 222.56.118.124 to any
>
>
> I have attacks by similar IP numbers. However, I discovered
> that these IP numbers are used only once to attack my PC.
> Next attack will be from a different IP number. So adding the
> IP numbers to your list each time after an attack, will make
> your deny-list longer and longer, but won't make it more effective,
> since it doesn't protect you against the attackers next attempts.
>
> Unless, of course, someone is attacking again and again from the
> same IP number; but that is not what I observe.
>
> Rob.
>
>

Actually, quite a few has attempted several times from the same IPs. I 
figure if it gets to big, I'll just block the whole class. What do I 
care if a whole country can't access my lil webserver? :)

Thanks for the comment.

Michael

-- 
Michael D. Whities
uidzero@one-arm.com
http://www.one-arm.com

--

There are four colors of hats to watch for: 
Black, White, Grey, and Red.

The meanings are: 
Cracker, Hacker, Guru, and Victim.



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