Solved

iptable rules

Posted on 2003-10-23
1
446 Views
Last Modified: 2010-04-22
Hi there,

I am currently experimenting with iptables. I know that the INPUT chain is very
important to prevent malicious packets from entering the internal network; however, I do not see how the FORWARD and OUTPUT chain being able to provide any extra security.

e.g: even if all packets from the internal network are free to be forwarded across the network and out of the internal network... how will that affect security of the internal network?

Pls give me examples of scenarios where specifying the FORWARD and OUTPUT chains provide extra security?

OR in other words,

give me examples of scenarios where NOT specifying the FORWARD and OUTPUT chains lead to a security threat to the internal network.

Thanks a lot!

d_terano.
0
Comment
Question by:d_terano
1 Comment
 
LVL 6

Accepted Solution

by:
mbarbos earned 50 total points
ID: 9610119
0

Featured Post

Backup Your Microsoft Windows Server®

Backup all your Microsoft Windows Server – on-premises, in remote locations, in private and hybrid clouds. Your entire Windows Server will be backed up in one easy step with patented, block-level disk imaging. We achieve RTOs (recovery time objectives) as low as 15 seconds.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
OpenLDAP set password to expire 7 540
Centos7 - Restore firewalld, disable ipables, confirm security 15 102
IPTables 4 135
Identify Linux loader 67 170
​Being a Managed Services Provider (MSP) has presented you  with challenges in the past— and by meeting those challenges you’ve reaped the rewards of success.  In 2014, challenges and rewards remain; but as the Internet and business environment evol…
Hello EE, Today we will learn how to send all your network traffic through Tor which is useful to get around censorship and being tracked all together to a certain degree. This article assumes you will be using Linux, have a minimal knowledge of …
Windows 10 is mostly good. However the one thing that annoys me is how many clicks you have to do to dial a VPN connection. You have to go to settings from the start menu, (2 clicks), Network and Internet (1 click), Click VPN (another click) then fi…
Many functions in Excel can make decisions. The most simple of these is the IF function: it returns a value depending on whether a condition you describe is true or false. Once you get the hang of using the IF function, you will find it easier to us…

920 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now