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vdboor
Guru
Joined: 03 Dec 2003
Posts: 592
Location: The Netherlands
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 Posted: Sun Jul 04, 2004 1:27 pm Post subject: reidrecting ports (like nat) on same system |
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Is it possible to redirect ports (like NAT does) to services at the same system? I tried something with -j DNAT in iptables but it didn't seam to work.
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DrCrippen
n00b
Joined: 04 Jun 2004
Posts: 18
Location: Warendorf / Germany
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| Posted: Sun Jul 04, 2004 4:18 pm Post subject: |
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You could change the port the service listens on. Depending on the software this is the easiest way. Or you do it with iptables as you said e.g. :
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iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 80 -j REDIRECT --to-port 3128
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That is an example from the netfilter hompage but DNAT should work as well:
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iptables -t nat -A PREROUTING -p tcp --dport 80 -i eth1 -j DNAT --to 127.0.0.1:3128
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That should do the same.
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tuxmin
l33t
Joined: 24 Apr 2004
Posts: 838
Location: Heidelberg
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| Posted: Sun Jul 04, 2004 7:11 pm Post subject: |
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Hi,
try this one:
ssh localhost -N -L8888:localhost:880 &
Assuming you have your own ssh public key in authorized_keys this one will redirect port 8888 to 80 for instance
Read "man ssh" for more details.
Alex!!! |
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tuxmin
l33t
Joined: 24 Apr 2004
Posts: 838
Location: Heidelberg
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| Posted: Sun Jul 04, 2004 7:12 pm Post subject: |
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Typo...
of course it must read: ssh localhost -N -L8888:localhost:80 & |
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Networking & Security
