[ale] Redirect a port

James P. Kinney III jkinney at localnetsolutions.com
Sat Jan 21 17:31:09 EST 2006


On Sat, 2006-01-21 at 14:02 -0500, Joe Steele wrote:
> Christopher Fowler wrote:
> > On Sat, 2006-01-21 at 13:19 -0500, James P. Kinney III wrote:
> >   
> >> On Sat, 2006-01-21 at 10:01 -0500, Christopher Fowler wrote:
> >>     
> >>> I have a service that runs on port 5000 on a server.  I have devices in
> >>> the field that are configured for 5000 or 5001.  Is it possible to use
> >>> iptables to redirect requests coming into 5001 to 5000?  I've done this
> >>> with DNAT but the server that is running the software is not behind a
> >>> NAT.  It is on a public IP.  So I want to do something like this:
> >>>
> >>>
> >>> 0.0.0.0/0 -> 209.168.X.X:5001 -> 5000
> >>>       
> >> iptables -A nat -m tcp -p tcp  --dport 5001 -j REDIRECT --to-ports 5000
> >>     
> >
> > I get an error that no chain exists by that name 'nat'.  I did try
> > 'INPUT' but got an invalid argument error.
> >   
> That should be:
> 
> iptables -t nat -A PREROUTING -p tcp --dport 5001 -j REDIRECT --to-ports 
> 5000
> 

Thanks, Joe. I thought it looked short when I wrote it. I didn't double
check it before I hit "send".
> --Joe
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-- 
James P. Kinney III          \Changing the mobile computing world/
CEO & Director of Engineering \          one Linux user         /
Local Net Solutions,LLC        \           at a time.          /
770-493-8244                    \.___________________________./
http://www.localnetsolutions.com

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney at localnetsolutions.com>
Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7
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