Filtered address in can login
gtaylor at riverviewtech.net
Wed Aug 17 07:06:11 CEST 2005
The only thing that comes to mind is that 184.108.40.206 might be getting in under the "--state RELATED" rule if you had an outgoing connection to that IP it would possibly be able to get back in.
Grant. . . .
> Hi, I have iptables-1.2.7a and 2.4.26 kernel and there is something
> I have the following rule:
> iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
> iptables -A INPUT -s 0/0 --protocol tcp --destination-port 80 -j ACCEPT
> iptables -A INPUT -s IP_ADDR --protocol tcp --destination-port 22 -j
> iptables -A INPUT -p tcp --syn -j DROP
> So I expect that only the specified IP_ADDR can ssh to port 22 in my
> But in /var/log/secure I see that some other IP's for example
> 220.127.116.11 try to login to ssh with different user names to my
> However, then I try ssh to that server not from IP_ADDR I can not, as
> Please tell me how this 18.104.22.168 bypass my firewall.
> Thank you very much,
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