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setting up first linux firewall

W

watts3000

Senior member
Ok this is my first time I've ever sit up a firwall using linux. So far this is what I've done. I went to system settings selected security and choose what leve of security I wanted to implement. Then I chose what services I wanted to pass through the firewall. My question is what else is there left to do. First off I would like to know how do I enable another nic as a trusted device. I ask this question because I have 3 nics in the box. During the install you can choose what nic you want as a trusted device, but I have not been able to find out how to enable a nic to be trusted after the install.Also can you configure rules for the firewall if so how is this accomplished. And my final questionis can a dmz zone be set up using linux.
 
I dont know what a trusted nic is so I cant help you out there.

You can write your own rules if you are using IPTables or IPChains. And you can setup a DMZ if you want.
 
Originally posted by: watts3000
Ok this is my first time I've ever sit up a firwall using linux. So far this is what I've done. I went to system settings selected security and choose what leve of security I wanted to implement. Then I chose what services I wanted to pass through the firewall. My question is what else is there left to do. First off I would like to know how do I enable another nic as a trusted device. I ask this question because I have 3 nics in the box. During the install you can choose what nic you want as a trusted device, but I have not been able to find out how to enable a nic to be trusted after the install.Also can you configure rules for the firewall if so how is this accomplished. And my final questionis can a dmz zone be set up using linux.
Click to expand...
Just curious why you have 3 nics?

Is this the redhat configuration gui you're using?
 
Originally posted by: Soybomb
Originally posted by: watts3000
Ok this is my first time I've ever sit up a firwall using linux. So far this is what I've done. I went to system settings selected security and choose what leve of security I wanted to implement. Then I chose what services I wanted to pass through the firewall. My question is what else is there left to do. First off I would like to know how do I enable another nic as a trusted device. I ask this question because I have 3 nics in the box. During the install you can choose what nic you want as a trusted device, but I have not been able to find out how to enable a nic to be trusted after the install.Also can you configure rules for the firewall if so how is this accomplished. And my final questionis can a dmz zone be set up using linux.
Click to expand...
Just curious why you have 3 nics?

Is this the redhat configuration gui you're using?
Click to expand...

eth0 internet
eth1 desktop
eth2 dmz

Maybe?
 
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