Server under DDOS attack HELP
Server under DDOS attack HELP
am 14.08.2004 14:10:24 von Kev
hi,
for the 5th time today my server is under a DDOS attack :( how can i
stop this ??? what i block all ICMP communication ?????
plz help.....
-------
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Re: Server under DDOS attack HELP
am 14.08.2004 14:20:21 von James Turnbull
This is a cryptographically signed message in MIME format.
--------------ms030003050804040802040906
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Kev wrote:
>hi,
>
>for the 5th time today my server is under a DDOS attack :( how can i
>stop this ??? what i block all ICMP communication ?????
>
>plz help.....
>
>
>
Kev
What sort of attack is this? What are you seeing in your firewall logs?
To restrict all incoming new and established state ICMP traffic you can
do something like:
iptables -A INPUT -p icmp -m state --state NEW,ESTABLISHED,RELATED -j DROP
Regards
James
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Re[2]: Server under DDOS attack HELP
am 14.08.2004 14:30:11 von Kev
>
>What sort of attack is this? What are you seeing in your firewall logs?
>
>To restrict all incoming new and established state ICMP traffic you can
>do something like:
>
>iptables -A INPUT -p icmp -m state --state NEW,ESTABLISHED,RELATED -j DROP
>
i cant even SSH to see whats going on..... its with my ISP they told me
its under a DDOS attack and some one trying to loin in via SSH....
if i block all icmp would that help ?
-------
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Re: Server under DDOS attack HELP
am 14.08.2004 14:34:51 von James Turnbull
This is a cryptographically signed message in MIME format.
--------------ms030808010601070600010701
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Kev wrote:
>i cant even SSH to see whats going on..... its with my ISP they told me
>its under a DDOS attack and some one trying to loin in via SSH....
>
>if i block all icmp would that help ?
>
>
>
>
If it's your ISP they should be working on fixing the problem too but
maybe it might help. Depends on the nature of the DDOS attack. You
need more information from your ISP before you can make any calls.
Regards
James
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Re[2]: Server under DDOS attack HELP
am 14.08.2004 14:45:58 von Kev
>>
>If it's your ISP they should be working on fixing the problem too but
>maybe it might help. Depends on the nature of the DDOS attack. You
>need more information from your ISP before you can make any calls.
yeah Jemes, i just ask them to tell me really whats going on with a full
description,
thanks for you help
-------
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