by jnel » Tue, 23 Sep 2003 06:28:17
I need to put fake IP address into the header of the message sent to my
list.
I had 3 dos attacs and I think that they comes from some people in my
newslist.
How to hide or to send fake IP by smtp when connecting to the mail server of
possible attackers?
Thanks
Jim
by Jem Berke » Tue, 23 Sep 2003 06:40:06
Sure it's not just these new Windows worms?Quote:> I need to put fake IP address into the header of the message sent to
> my list.
> I had 3 dos attacs and I think that they comes from some people in my
> newslist.
Can't be done. NNTP and SMTP are TCP/IP protocols; for the data exchangesQuote:> How to hide or to send fake IP by smtp when connecting to the mail
> server of possible attackers?
--
Jem Berkes
http://www.sysdesign.ca/
by Peter K?hlman » Tue, 23 Sep 2003 06:38:57
> I need to put fake IP address into the header of the message sent to my
> list.
> I had 3 dos attacs and I think that they comes from some people in my
> newslist.
> How to hide or to send fake IP by smtp when connecting to the mail
> server of possible attackers?
> Thanks
> Jim
by ray » Tue, 23 Sep 2003 10:55:26
> I need to put fake IP address into the header of the message sent to my
> list.
> I had 3 dos attacs and I think that they comes from some people in my
> newslist.
> How to hide or to send fake IP by smtp when connecting to the mail server of
> possible attackers?
> Thanks
> Jim
1. Urgent: Machine crash, someone DoS attack using ICMP..help needed
Hi,
My machine is attacking by ICMP DoS, almost everyday.
Feb 20 12:29:55 bsd /kernel: icmp-response bandwidth limit 923/200 pps
Feb 20 12:29:56 bsd /kernel: icmp-response bandwidth limit 820/200 pps
And the machine freezed, after the attack, and have to reboot it.
I have setup the IPFW to block the ICMP, but still not solving the problems.
This is my IPFW rules:
03001 allow tcp from (my dialup IP) to any 21
03100 deny tcp from any to any 21
04001 allow tcp from (my dialup IP) to any 22
04100 deny tcp from any to any 22
09001 allow icmp from (my dialup IP) to any
09002 allow icmp from (server IP) to any
09003 allow icmp from 127.0.0.1 to any
09100 deny icmp from any to any
65534 allow ip from any to any
65535 deny ip from any to any
Advise and sugguestions needed for the IPFW rule configuration.
And do we need the "allow ip from any to any via lo0" to be added into the Rules?
helps are appreciated.
Thnx
-Matt
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