VPS: How to forward traffic to devices from public IP

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My goal is to set up a public IP for a Android Smartphone which is running an "IP Cam" software. The interface can be accessed in local network on (example) 192.168.0.2:8080, but it has no public IP, as it should also work in the 3G network.



I know there are services which offer a VPN with static dedicated addresses; the free one I found offers only PPTP with IPv6 (didn't work).



The rest of them offer IPv4 for much higher cost than an actual VPS at Host1Plus with the lowest specs, so I went with this. At least I can practice and/or use the VPS for other projects. I followed this tutorial.



Now I am at the point where I created a new user, assigned a static VPN Address in the OpenVPN Admin Panel to the account, and logged in with my device.



Everything works so far. My android device gets the public IP of the VPS while browsing.



I can ping the device's private VPN IP in the ssh terminal of the VPS.

What is the next step?



I tried this, but it doesn't really work. I am lost at this point. I never did anything with routes or forwarding.



If I enter the public VPS IP right now, I get the openVPN Login Form as before. If I enter [PublicVPSIP]:8080 I get a "Server not reachable etc." error.



At the end it should work like this.



Android (running some service at port 8080) (VPN IP: 1.2.3.4)





connects via openVPN to my VPS





VPS (running openVPN Server) (Public IP: 123.123.123.123)





Traffic from visitor at 123.123.123.123:8080 should be redirected/forwarded to my android device. (1.2.3.4:8080)










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    up vote
    1
    down vote

    favorite












    My goal is to set up a public IP for a Android Smartphone which is running an "IP Cam" software. The interface can be accessed in local network on (example) 192.168.0.2:8080, but it has no public IP, as it should also work in the 3G network.



    I know there are services which offer a VPN with static dedicated addresses; the free one I found offers only PPTP with IPv6 (didn't work).



    The rest of them offer IPv4 for much higher cost than an actual VPS at Host1Plus with the lowest specs, so I went with this. At least I can practice and/or use the VPS for other projects. I followed this tutorial.



    Now I am at the point where I created a new user, assigned a static VPN Address in the OpenVPN Admin Panel to the account, and logged in with my device.



    Everything works so far. My android device gets the public IP of the VPS while browsing.



    I can ping the device's private VPN IP in the ssh terminal of the VPS.

    What is the next step?



    I tried this, but it doesn't really work. I am lost at this point. I never did anything with routes or forwarding.



    If I enter the public VPS IP right now, I get the openVPN Login Form as before. If I enter [PublicVPSIP]:8080 I get a "Server not reachable etc." error.



    At the end it should work like this.



    Android (running some service at port 8080) (VPN IP: 1.2.3.4)





    connects via openVPN to my VPS





    VPS (running openVPN Server) (Public IP: 123.123.123.123)





    Traffic from visitor at 123.123.123.123:8080 should be redirected/forwarded to my android device. (1.2.3.4:8080)










    share|improve this question

























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      My goal is to set up a public IP for a Android Smartphone which is running an "IP Cam" software. The interface can be accessed in local network on (example) 192.168.0.2:8080, but it has no public IP, as it should also work in the 3G network.



      I know there are services which offer a VPN with static dedicated addresses; the free one I found offers only PPTP with IPv6 (didn't work).



      The rest of them offer IPv4 for much higher cost than an actual VPS at Host1Plus with the lowest specs, so I went with this. At least I can practice and/or use the VPS for other projects. I followed this tutorial.



      Now I am at the point where I created a new user, assigned a static VPN Address in the OpenVPN Admin Panel to the account, and logged in with my device.



      Everything works so far. My android device gets the public IP of the VPS while browsing.



      I can ping the device's private VPN IP in the ssh terminal of the VPS.

      What is the next step?



      I tried this, but it doesn't really work. I am lost at this point. I never did anything with routes or forwarding.



      If I enter the public VPS IP right now, I get the openVPN Login Form as before. If I enter [PublicVPSIP]:8080 I get a "Server not reachable etc." error.



      At the end it should work like this.



      Android (running some service at port 8080) (VPN IP: 1.2.3.4)





      connects via openVPN to my VPS





      VPS (running openVPN Server) (Public IP: 123.123.123.123)





      Traffic from visitor at 123.123.123.123:8080 should be redirected/forwarded to my android device. (1.2.3.4:8080)










      share|improve this question















      My goal is to set up a public IP for a Android Smartphone which is running an "IP Cam" software. The interface can be accessed in local network on (example) 192.168.0.2:8080, but it has no public IP, as it should also work in the 3G network.



      I know there are services which offer a VPN with static dedicated addresses; the free one I found offers only PPTP with IPv6 (didn't work).



      The rest of them offer IPv4 for much higher cost than an actual VPS at Host1Plus with the lowest specs, so I went with this. At least I can practice and/or use the VPS for other projects. I followed this tutorial.



      Now I am at the point where I created a new user, assigned a static VPN Address in the OpenVPN Admin Panel to the account, and logged in with my device.



      Everything works so far. My android device gets the public IP of the VPS while browsing.



      I can ping the device's private VPN IP in the ssh terminal of the VPS.

      What is the next step?



      I tried this, but it doesn't really work. I am lost at this point. I never did anything with routes or forwarding.



      If I enter the public VPS IP right now, I get the openVPN Login Form as before. If I enter [PublicVPSIP]:8080 I get a "Server not reachable etc." error.



      At the end it should work like this.



      Android (running some service at port 8080) (VPN IP: 1.2.3.4)





      connects via openVPN to my VPS





      VPS (running openVPN Server) (Public IP: 123.123.123.123)





      Traffic from visitor at 123.123.123.123:8080 should be redirected/forwarded to my android device. (1.2.3.4:8080)







      centos routing vpn openvpn forwarding






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      edited Dec 5 at 13:28









      Jeff Schaller

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      37.8k1053123










      asked Apr 3 '15 at 15:35









      Georg91

      62




      62




















          1 Answer
          1






          active

          oldest

          votes

















          up vote
          0
          down vote













          I solved it. For other people with the same problem.



          This article helped me: Forward a TCP port to another IP or port using NAT with Iptables



          Additionally (as I have no idea if this is enough because of attacks)
          I followed this: How to block all ports except ...



          Just to block all remaining ports which might be open which I don´t need.
          Of course don´t forget to add your SSH port to the exception or you get locked out of your SSH terminal.



          Although I am not sure if this is enough to really harden Your VPS against attacks etc. So I am happy about further suggestions






          share|improve this answer






















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            1 Answer
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            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes








            up vote
            0
            down vote













            I solved it. For other people with the same problem.



            This article helped me: Forward a TCP port to another IP or port using NAT with Iptables



            Additionally (as I have no idea if this is enough because of attacks)
            I followed this: How to block all ports except ...



            Just to block all remaining ports which might be open which I don´t need.
            Of course don´t forget to add your SSH port to the exception or you get locked out of your SSH terminal.



            Although I am not sure if this is enough to really harden Your VPS against attacks etc. So I am happy about further suggestions






            share|improve this answer


























              up vote
              0
              down vote













              I solved it. For other people with the same problem.



              This article helped me: Forward a TCP port to another IP or port using NAT with Iptables



              Additionally (as I have no idea if this is enough because of attacks)
              I followed this: How to block all ports except ...



              Just to block all remaining ports which might be open which I don´t need.
              Of course don´t forget to add your SSH port to the exception or you get locked out of your SSH terminal.



              Although I am not sure if this is enough to really harden Your VPS against attacks etc. So I am happy about further suggestions






              share|improve this answer
























                up vote
                0
                down vote










                up vote
                0
                down vote









                I solved it. For other people with the same problem.



                This article helped me: Forward a TCP port to another IP or port using NAT with Iptables



                Additionally (as I have no idea if this is enough because of attacks)
                I followed this: How to block all ports except ...



                Just to block all remaining ports which might be open which I don´t need.
                Of course don´t forget to add your SSH port to the exception or you get locked out of your SSH terminal.



                Although I am not sure if this is enough to really harden Your VPS against attacks etc. So I am happy about further suggestions






                share|improve this answer














                I solved it. For other people with the same problem.



                This article helped me: Forward a TCP port to another IP or port using NAT with Iptables



                Additionally (as I have no idea if this is enough because of attacks)
                I followed this: How to block all ports except ...



                Just to block all remaining ports which might be open which I don´t need.
                Of course don´t forget to add your SSH port to the exception or you get locked out of your SSH terminal.



                Although I am not sure if this is enough to really harden Your VPS against attacks etc. So I am happy about further suggestions







                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited Mar 20 '17 at 10:18









                Community

                1




                1










                answered Apr 4 '15 at 8:03









                Georg91

                62




                62



























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