Latest LQ Deal: Complete CCNA, CCNP & Red Hat Certification Training Bundle
Go Back > Forums > Linux Forums > Linux - Security
User Name
Linux - Security This forum is for all security related questions.
Questions, tips, system compromises, firewalls, etc. are all included here.


Closed Thread
  Search this Thread
Old 07-21-2005, 11:22 PM   #1
LQ Newbie
Registered: Jul 2005
Location: Memphis
Distribution: red hat 9
Posts: 14

Rep: Reputation: 0
Exclamation Iptables-- internal network

i need to come up with a iptables script for my firewall. my firewall has to nic cards. one connects to the external and 1 to the internal. So anybody knows how to create a firewall iptables script which only allows the internal network to be able to connect and ping to the web server in the external network. and the extenal network can not enter to the internal network at all..


Also i want to eliminate the single point of failure so i am using heartbeat for failover. the problem is. i don have a clue for to configure it. can anyone be an angel and help me with this 2 problems. i have to solve it next week.

Old 07-22-2005, 02:47 AM   #2
Senior Member
Registered: May 2001
Location: Indiana
Distribution: Gentoo, Debian, RHEL, Slack
Posts: 1,555

Rep: Reputation: 46 has firewalls that should suite your purpose. You can edit them to include more custom and specific rules for your purpose, but generally they work right out of the box for what they say to use them for.
Old 07-22-2005, 08:37 AM   #3
Registered: Jun 2004
Location: State of Confusion
Distribution: My other OS is your Solaris box.
Posts: 84

Rep: Reputation: 15
You could also go to and use the online tool to generate a custom firewall.
Old 07-27-2005, 08:49 PM   #4
Senior Member
Registered: Mar 2003
Distribution: Fedora
Posts: 3,658

Rep: Reputation: 69
Please do not post the same thread in more than one forum. Picking the most relevant forum and posting it once there makes it easier for other members to help you and keeps the discussion all in one place.

Forward replies to:

Closed Thread

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
iptables forwarding to internal server pyloth Linux - Security 4 04-17-2005 12:51 PM
ftp to internal box with iptables thesnaggle Linux - Networking 1 04-02-2004 10:15 AM
IPtables - cannot access internal webserver tantric Linux - Security 3 03-17-2004 02:20 AM
iptables blocking internal access? complus Linux - Networking 17 03-08-2004 11:14 PM
IPTABLES port forwarding to internal network ivanros Linux - Networking 2 12-28-2002 10:19 PM

All times are GMT -5. The time now is 03:38 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration