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hi,
it seems that once the ip_conntrack table is being filled up, the =
system will crash.=20
Does it means that it is very vulnerable to DOS attack?
I have performed a port scan using nmap on my box, and it is able to =
scan alot of ports being opened? How come this happened? I only allow =
established,related tcp packets and tcp port 22 New on INPUT to the box? =
The default policy is DROP.
The result is=20
port 22 open=20
port 80 open
Why it is so? Pls advise. Thanks in advanced.
ben
=20
=20
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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>hi,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2> it seems that once =
the=20
ip_conntrack table is being filled up, the system will crash. =
</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2> Does it means that =
it is very=20
vulnerable to DOS attack?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2> I have performed =
a port=20
scan using nmap on my box, and it is able to scan alot of ports being =
opened?=20
How come this happened? I only allow established,related tcp packets=20
and tcp port 22 New on INPUT to the box? The default policy is=20
DROP.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2> The result is =
</FONT></DIV>
<DIV><FONT face=3DArial size=3D2> port 22 open =
</FONT></DIV>
<DIV><FONT face=3DArial size=3D2> port 80 =
open</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Why it is so? Pls advise. Thanks in=20
advanced.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>ben</FONT></DIV>
<DIV><FONT face=3DArial size=3D2> </FONT> </DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2> =
</FONT></DIV></BODY></HTML>
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