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Old 09-28-2009, 10:39 AM   #1
mrittman
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Registered: Sep 2009
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NAT port forwarding


Hey guys I'm really new to Linux and need some help. At the company I work at, we're trying figure out a way to forward ports through NAT. I apologize if what I am asking doesn't make a lot of sense because I really am a newbie haha. Anyway, we're looking for something to type into the command line that says, open this port up, and redirect it to another location. I've heard of Gated and Routed but not sure if this is something that will work or not.

Any help would be much appreciated!

Thanks!
Matt
 
Old 09-28-2009, 11:47 AM   #2
strick1226
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Sure--the linux firewall supports all kinds of options, and can be configured in many different ways. Unfortunately, all the complexity of the options can be a bit daunting at first for newcomers.

Not for the squeamish, but this provides a pretty detailed overview of the linux firewall ("iptables") system: http://www.linuxhomenetworking.com/w...Using_iptables

If you're not used to doing a lot of command-line-based /non-GUI sort of work you might find one of the linux firewall-specific distributions to be more your cup of tea. IPCop and Smoothwall come to mind... there's also *BSD-based m0n0wall and pfSense. One of these would be installed on a freestanding machine--separate from your file/application server.

Some mainstream linux distributions include built-in firewall managements tools, such as Novell SuSE and Redhat. Depending which linux distribution your company is using, you might very well already have an iptables configuration tool present on the system.

Hope this helps.
 
Old 09-28-2009, 12:16 PM   #3
mrittman
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strick1226,

Thank you very much for the quick reply. I really appreciate your help. This should definitely get me started!

Thanks,
Matt
 
Old 09-28-2009, 07:31 PM   #4
chrism01
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