Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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I have 2 pc and I tried to learn how to NAT on those . The fist PC ( 10.0.0.4 ) with iptables and the second (10.0.0.5 ) with apache on it. Now I would like whenerver a http request to 10.0.0.4 , it will forward to 10.0.0.5 and I used :
Then I tried "http://10.0.0.4" on the 10.0.0.5 , hoping it will redirect back but nothing happend ( ofcause my httpd on 10.0.0.5 in turn on ) . Could you point me out the wrong in the command abouve , thank you
You need to supply port after redirect too - look at the end of that rule. Also primary destination address as a source of redirect won't do any harm. (-d 10.0.0.4)
Because of the way tcp works, you cannot use portforwarding within a LAN.
Basically, a packet will be sent from 10.0.0.5 to 10.0.0.4, which redirects it to 10.0.0.5 again. HOWEVER, 10.0.0.5 will reply to 10.0.0.5 directly! 10.0.0.5 is expecting the reply from 10.0.0.4, so will discard this excess packet!
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