Forwarding traffic from a host to a host's container

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I have two hosts in a network 192.168.0.0/24:



  • Host A 192.168.0.15

  • Host B 192.168.0.13

And there is a remote ssh tunnel from B to A:



ssh -R 192.168.0.13:8080:192.168.0.15:8002 192.168.0.13 -N


and that tunnel works.



Host A runs a container nginx that runs nginx on a port 80. I would like to forward a traffic from 192.168.0.15:8002 to that nginx server. How to do it?



So,



if someone send a GET request with curl 192.168.0.13:8080 he will get response from nginx run on 192.168.0.15 in a container. The flow should be:



192.168.0.14 (for example) ---GET--> 192.168.0.13:8080
192.168.0.13 --(SSH TUNNEL)--> 192.168.0.15:8002
192.168.0.15:8002 -----------> 172.17.0.2:80 (nginx container)
172.17.0.2 ------------> 192.168.0.15
192.168.0.15 ------------> 192.168.0.13
192.168.0.13 ------------> 192.168.0.14


P.S.
I have to use iptables- I cannot change an existing tunnel.









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    down vote

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    I have two hosts in a network 192.168.0.0/24:



    • Host A 192.168.0.15

    • Host B 192.168.0.13

    And there is a remote ssh tunnel from B to A:



    ssh -R 192.168.0.13:8080:192.168.0.15:8002 192.168.0.13 -N


    and that tunnel works.



    Host A runs a container nginx that runs nginx on a port 80. I would like to forward a traffic from 192.168.0.15:8002 to that nginx server. How to do it?



    So,



    if someone send a GET request with curl 192.168.0.13:8080 he will get response from nginx run on 192.168.0.15 in a container. The flow should be:



    192.168.0.14 (for example) ---GET--> 192.168.0.13:8080
    192.168.0.13 --(SSH TUNNEL)--> 192.168.0.15:8002
    192.168.0.15:8002 -----------> 172.17.0.2:80 (nginx container)
    172.17.0.2 ------------> 192.168.0.15
    192.168.0.15 ------------> 192.168.0.13
    192.168.0.13 ------------> 192.168.0.14


    P.S.
    I have to use iptables- I cannot change an existing tunnel.









    share























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I have two hosts in a network 192.168.0.0/24:



      • Host A 192.168.0.15

      • Host B 192.168.0.13

      And there is a remote ssh tunnel from B to A:



      ssh -R 192.168.0.13:8080:192.168.0.15:8002 192.168.0.13 -N


      and that tunnel works.



      Host A runs a container nginx that runs nginx on a port 80. I would like to forward a traffic from 192.168.0.15:8002 to that nginx server. How to do it?



      So,



      if someone send a GET request with curl 192.168.0.13:8080 he will get response from nginx run on 192.168.0.15 in a container. The flow should be:



      192.168.0.14 (for example) ---GET--> 192.168.0.13:8080
      192.168.0.13 --(SSH TUNNEL)--> 192.168.0.15:8002
      192.168.0.15:8002 -----------> 172.17.0.2:80 (nginx container)
      172.17.0.2 ------------> 192.168.0.15
      192.168.0.15 ------------> 192.168.0.13
      192.168.0.13 ------------> 192.168.0.14


      P.S.
      I have to use iptables- I cannot change an existing tunnel.









      share













      I have two hosts in a network 192.168.0.0/24:



      • Host A 192.168.0.15

      • Host B 192.168.0.13

      And there is a remote ssh tunnel from B to A:



      ssh -R 192.168.0.13:8080:192.168.0.15:8002 192.168.0.13 -N


      and that tunnel works.



      Host A runs a container nginx that runs nginx on a port 80. I would like to forward a traffic from 192.168.0.15:8002 to that nginx server. How to do it?



      So,



      if someone send a GET request with curl 192.168.0.13:8080 he will get response from nginx run on 192.168.0.15 in a container. The flow should be:



      192.168.0.14 (for example) ---GET--> 192.168.0.13:8080
      192.168.0.13 --(SSH TUNNEL)--> 192.168.0.15:8002
      192.168.0.15:8002 -----------> 172.17.0.2:80 (nginx container)
      172.17.0.2 ------------> 192.168.0.15
      192.168.0.15 ------------> 192.168.0.13
      192.168.0.13 ------------> 192.168.0.14


      P.S.
      I have to use iptables- I cannot change an existing tunnel.







      networking iptables docker





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      asked 7 mins ago









      Gilgamesz

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