hello every bady

Do you know how to close this command:

iptables -F
iptables -L

this command about firewall...

can you help us?

thank you

"close this command"?? please explain in better detail what you actually want to achieve.

Hello every body
I ment by my question that i have used this command to allow accessing of programs easily.
iptables -F
this command makes every harmful program ( while connecting to enternet for eg) enter my system easily since no firewalles are there

my q is how to undo that..
how to close such harmful accesses.


Thanks in advance

iptables & further associated functions(like iptables -F) can only be run by a root user. So even if as you say that some program enters your system, the first thing it has to face is the authentication part or get the rights of some user to perfom any action at your box or if it came because of some flaw or exploit in some service; respective effective user rights will be passed on to this harmful program. This further clarifies one point that, access to an exploit of some service can only be avoided because of some special signatures which should be avail to us prior to the implementation of software IPS or hardware IPS or updating these packages for these exploits would be the most optimum.