Configure IPtables

[mikegrungey]

Hi There!
I'm new to linux environment & DA too.I'm using CentOS5. I noticed at help.directadmin.com there was in issue on just opening certain port in our server for :
22: ssh access

25: smtp for exim to recieve email

53: dns (named), so your sites resolve

80, 443: apache traffic, http and https

110: client pop email access
143: clients imap email access

2222: DirectAdmin Access

I'm Using IPtables but i did'nt configure it yet but it already starting by default which there is no rules define or create. "ve some question regarding this issues.

What and how to apply the rules to only enable the port as above.

What is the meaning for this nmap result using nmap -PN 123.123.123.123
Not Showed : 1712 Filtered
Open
80 http
443 http

Thanks in advances

 

[rohit]

use apf, if you are not sure on how to use iptables.

 

[mikegrungey]

thanks for the info rohit. Now i'm trying to decide which when is easy to maintain either APF or KISS.

Which one did you use rohit?

 

[rohit]

Hey Mike, I am using APF. At the end of the day we need something that can configure IPTABLES for us and also its one of those things that you wont be touching everyday.

 

[nobaloney]

KISS is easier to maintain, while some people consider IPF+BFD to be more secure as it can block brute force attacks in realtime.

Jeff

 

[mikegrungey]

Thanks for the info jeff & rohit . I'll looking forward on how to use and manage KISS.

 

[nobaloney]

Search these forums.



Jeff