<div dir="ltr">That's weird.. The ip addresses are in different networks.. Which clients are these? Is one Lubuntu and another one Ubuntu? Which is which?<div> </div><div>From what I understand from you, your network looks like this: <a href="http://tmp.hjts.nl/vpn-ubuntu.png">http://tmp.hjts.nl/vpn-ubuntu.png</a> - is that correct?</div><div>I'd be happy to share my configuration, I actually first built the whole network in VirtualBox and then implemented it. It looks like this: <a href="http://tmp.hjts.nl/vpn-virtualbox.png">http://tmp.hjts.nl/vpn-virtualbox.png</a> Let me know if you are interested.</div></div><div class="gmail_extra"> <div class="gmail_quote">On Tue, Apr 7, 2015 at 4:56 PM, Paolo De Michele <<a href="mailto:paolo@paolodemichele.it" target="_blank">paolo@paolodemichele.it</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> lubuntu use lxde and network manager 2 clients with ubuntu use unity as DE about your questions: - all clients does the openvpn connection via cli (command line) - the connection from client to server works properly when I do the ifconfig on all clients, I have: loopback and eth0 egual (change only the ip address) tun0 is a bit different (also here change the ip address) tun0 Link encap:UNSPEC HWaddr00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:192.168.40.130 P-t-P:192.168.40.129 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1378 Metric:1 RX packets:157 errors:0 dropped:0 overruns:0 frame:0 TX packets:188 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:72840 (72.8 KB) TX bytes:41759 (41.7 KB) tun0 Link encap:UNSPEC HWaddr00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:10.8.0.14 P-t-P:10.8.0.13 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1378 Metric:1 RX packets:225 errors:0 dropped:0 overruns:0 frame:0 TX packets:257 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:92662 (92.6 KB) TX bytes:49045 (49.0 KB) On my client (it works) I tried both ip addresses and it works properly <div class="HOEnZb"><div class="h5"> On Tue, 07 Apr 2015, Henk te Sligte wrote: > So the difference is only lubuntu or ubuntu? I'm not sure if lubuntu has > Network Manager, how do you connect with the clients? Do you use Network > Manager or the console application? Do you see the clients making the > openvpn connection on the server? Just to make sure, can you do ifconfig on > all clients? > > > On Tue, Apr 7, 2015 at 3:50 PM, Paolo De Michele <<a href="mailto:paolo@paolodemichele.it">paolo@paolodemichele.it</a>> > wrote: > > > > > thanks for your reply > > I do not think it is a server problem because a client is working properly > > if you see the previous email dig works fine but when I request that web > > page from a browser can not display the page > > > > I have this problem only with two clients that use ubuntu. > > the client with lubuntu works properly. > > > > can I verify anything else? > > thanks in advance > > > > regards > > > > On Tue, 07 Apr 2015, Henk te Sligte wrote: > > > > > Just yesterday I configured a debian openvpn server and ubuntu clients. > > On > > > the server, you need to have IP forwarding enabled, and iptables should > > > forward all traffic. > > > > > > First, enable IP forwarding: > > > sudo sysctl -w net.ipv4.ip_forward=1 > > > sudo /etc/init.d/procps restart > > > > > > Then, let iptables forward all traffic: > > > iptables -t nat -I POSTROUTING -o eth0 -j MASQUERADE > > > iptables -A FORWARD -i tun0 -o tun0 -j ACCEPT # vpn to vpn > > > iptables -A FORWARD -i tun0 -o eth0 -j ACCEPT # vpn to ethernet > > > iptables -A FORWARD -i eth0 -o tun0 -j ACCEPT # ethernet to vpn > > > > > > Note that this doesn't filter any traffic, it just makes sure that you > > can > > > communicate with the ethernet. If you want to block certain traffic and > > > allow other traffic, I suggest to read some more about iptables. > > > > > > > > > > > > On Tue, Apr 7, 2015 at 11:14 AM, Paolo De Michele < > > <a href="mailto:paolo@paolodemichele.it">paolo@paolodemichele.it</a>> > > > wrote: > > > > > > > anyone can help me? > > > > thanks in advance > > > > > > > > regards > > > > > > > > On 3 April 2015 at 12:25, Paolo De Michele <<a href="mailto:paolo@paolodemichele.it">paolo@paolodemichele.it</a>> > > > > wrote: > > > > > > > >> hi there, > > > >> > > > >> this is my scenario: > > > >> > > > >> - 1 server (I installed openvpn and bind via docker in 2 different > > > >> instances) > > > >> - 3 clients (first one with lubuntu 14.04 x64 and the last two clients > > > >> with ubuntu 14.04 x64) > > > >> > > > >> the vpn server works correctly > > > >> if I connect to the server with vpn client installed lubuntu I have no > > > >> problem. > > > >> if I try ubuntu by clients, same problems. > > > >> > > > >> let me explain: > > > >> > > > >> the connection to the vpn server works correctly > > > >> I have an additional interface called tun0 with a regular ip address > > > >> I have also the new dns servers: the first one private (my dns server) > > > >> and the other two (publics) > > > >> > > > >> if I try to solve an hostname by dig command, works perfectly > > > >> if I try to view the same hostname via browser I cannot be able to > > > >> visualize the webpage > > > >> If I try the ip address, works perfectly > > > >> > > > >> can I do other tests? > > > >> anyone can help me please? > > > >> > > > >> thanks in advance > > > >> regards > > > >> > > > > > > > > > > > > -- > > > > ubuntu-users mailing list > > > > <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> > > > > Modify settings or unsubscribe at: > > > > <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> > > > > > > > > > > > > > -- > > > ubuntu-users mailing list > > > <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> > > > Modify settings or unsubscribe at: > > <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> > > > > -- > > ubuntu-users mailing list > > <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> > > Modify settings or unsubscribe at: > > <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> > > > -- > ubuntu-users mailing list > <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> > Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> -- </div></div>Paolo De Michele Finger Print: 038F 13HS 9339 <div class="HOEnZb"><div class="h5"> -- ubuntu-users mailing list <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> </div></div></blockquote></div> </div>