Ubuntu Security :: OpenVPN Connects To VPN But No Internet (10.10 64-bit)
Jan 5, 2011
I use vpntunnel.se and followed their tutorial for OpenVPN and it connects and assigns an IP. However, once the sequence is initiated and I open my browser I cannot connect to a webpage and get a "cannot resolve" error. I e-mailed their support and they suggested I change the DNS of my network settings. I did that but the same problem. Once I close OpenVPN my internet works again. It works in windows, so I know it is not my router...I use a wireless connection with my router. I don't know if this has something to do with anything...
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Dec 10, 2010
I have installed OpenVPN to use it as an internet gateway butcan't get it to work.OpenVPN installed without any problem. The client can also connect and ping the server but there is no internet traffic.I think it is because of a wrong gateway address which the client gets but I'm not sure. server IP address is 10.8.0.1 and the client can ping this IP but it's default gateway is always 10.8.0.5 which is not accessible from the client.This is my server.conf:
Code:
dev tun
proto tcp
[code]...
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Jan 7, 2011
I have an asus router running tomato firmware. Through the webGUI I have set up an openVPN server as per the tomato guides. I am using the network manager plug-in in ubuntu 10.04 to connect as a client to the tomato openVPN. All of my certificates seem to be set up and working correctly.
I am able to successfully connect to the openVPN server using the ubuntu client but after that I get nothing. On the client side I am unable to ping the router, any ip addresses inside my private network, the virtual network ip, and web browsing (client) no longer works.
Also, when connected I am unable to ping the client from the private network.
Before connecting
Code:
chris@ChrisLaptop:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:1e:68:90:5e:e9
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
[Code]....
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Jul 18, 2010
I've configured an openvpn server on a wrt54g using dd-wrt firmware. I can connect from the command line...at least it appears to connect, but I am unable to access any resources. Trying to use networkmanager's openvpn client fails every time. Everything I find googling relates to Ubuntu, so just for kicks I booted into my Ubuntu partition for the first time in months....and the wireless lan disappeared when I restarted network manager, which is why I don't use Ubuntu in the first place, so much for the "easier distros". I'm assuming there are people successfully connecting to openvpn servers from Slack. I could definitely use a pointer.
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Mar 4, 2010
I'm sorry if i'm posting this on the wrong place and if this problem is solved in another post but I couldn't find anything to solve my problem. I'm kind of noob when it comes to these kinds of problems.
I have an Acer Aspire One 110L. I had Ubuntu 9.04 on it working fine but one day something happened. I connected to my wireless network and I got no Internet. I couldn't even ping to my router. I thought it was some kind of bad update I've installed that made it to my computer, so today I've installed Ubuntu 8.10, following this tutorial: [URL].. While following it, I used a wireless usb card to connect to my wireless network and download the packages needed. I've installed WLan via ath5k Method at the beginning, but right after unpluging the USB wireless card, the other wireless card from my Aspire One had the same problem as before. It can connect to the network but I can't even ping my router. No signal. I've tried the madwifi method too but the problem is still here, because it must be something else. The drivers must be fine.
Can anyone please tell me what to do here? I'm pissed off already with this problem. I don't really know what is the problem. I have another 2 computers at home and they work fine via Wireless.
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Nov 23, 2010
Let me start by saying that I am new to ubuntu, and that I always use forums as a last resort.
I installed ubuntu 10, and immediately after the Wifi card deected my network name, and actually connected to it, but then I opened up firefox and....no internet.
Since then I have been trying to fix this problem, and after some research I found out that my card (PCI Cwp-905) is RT2760 based, and I downloaded the linux RT2760 drivers for it.
The driver folder contained a readme file with commands you should enter to install it, and other setup files.
The problem: every command I typed in didn't work. I tried "make", and then "sudo make", but just got permission denied each time. I am now at a dead end. (Please note that I changed my directory to the folder location before doing this)
Does anyone know what I am doing wrong? If you want I can attach the driver files.
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Jan 20, 2010
just wanted to ask what is the name of the process that connects to the internet in fedora 12, i tried networkManager and /sbin/dhclient but when i tried to stop them, the my connection didn't disconnected.
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Jun 20, 2010
I recently installed Xubuntu 10.04 on my desktop computer that had a USB wireless adapter DLink DWA-140. I didn't have to install any additional drivers to get it to work. I put in the network SSID and the password and was connected immediately. However, when I try starting firefox it doesn't load any sites. Can anyone help me in approaching this problem. I have a DLink DIR-655 router. If I should gather more information to get this problem solved then please let me know and I will do so.
Edit: Now I am unable to connect to the network. When I click the network icon in the taskbar, my home network is not visible while it is visible under another ubuntu computer I'm running.
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Jul 17, 2010
I bought a laptop today (Compaq Presario cq62) and loaded Ubuntu 10.04 on it. Everything has been running great, but the Wifi has been acting up. It connects to my router for a few seconds to a minute, and then stops all data transfer (although it still shows that I am connected to the internet). My other computers running Mac work fine. I took my laptop to another place with wifi, and it did the same thing.
The data transfer seems to stop when there is a lot going on. Whenever I try downloading new software, it gets to exactly 5% then stops. If I disconnect the wifi, and reconnect it works again for another minute. I may need to be walked through any terminal codes.
On that note, where would be a great place to read up on using Ubuntu (online book?)
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Aug 25, 2010
I installed Ubuntu 10.04 32-bit on an old desktop (1.5ghz Pentium 4, 20GB hard drive, 768MB RAM) a week or two ago, at the same time that I installed Xubuntu 10.04 on an even lower performance IBM tower server. The server functions perfectly and my other (Windows XP) desktop recognized it from the start, as did the Ubuntu desktop. However, I rearranged a few ethernet cables the other day without turning off the desktops and ever since my Ubuntu machine does not recognize my server, even though all of the devices are connected via ethernet cable to a linksys router and it connects to the internet without a problem. I'm a linux newbie - this is my first move away from Windows - and I don't know where to turn. Far more confusing is the fact that, when I boot from a LiveCD, the network is recognized and I can read/manipulate files on my server without a problem. Oh, and I briefly flirted with OpenSUSE KDE (not as noob-friendly as Ubuntu, so I'm back) and encountered the same problem.
Needless to say, booting from the hard drive is preferable to booting from CD every time
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Nov 11, 2010
trying to run 10.04 netbook live from a memory stick with a view to installing it on my laptop. However although I can see my wireless router and connect to it I cannot access the internet. I have tried this on my laptop and desktop with the same result. I was however able to download Seamonkey browser using the software manager....this also cannot access the internet. Both of my PC's have no problem when using XP or Linux Mint.
I have also discovered that if I piggyback, using Ubuntu 10.04, on a neighbours open wifi link I can gain access to the internet. My wifi is using WEP protection but as I said I can set the link up to the router, entering the appropriate key code, and have a good signal strength, I just cannot access a google search page.
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Jan 2, 2010
Im a total beginner when it comes cryptography and networking. Finally managed to create a connection with OpenVPN on Ubuntu to a vpn provider called ivacy. On this page:http://ivacy.com/en/doc/user/setup/winxp_openvpn they give configuration files and keys, which I used. The question is, if someone wanted to see my network traffic, could they do it using the keys provided on that page. Reading the OpenVPN documentation i saw that it is also possible to create your own keys. Would that be more secure?
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Dec 17, 2010
I installed Debian Squeeze on my system two days ago, using a wired connection to internet (which worked fine). After that, I had to install the non-free wireless package in order to scan wireless networks. It now works fine, and I can connect and get to internet. But with wired connection, i connect via eth0 and none of my applications work. And they're not in offline mode.Also, i already went here: URL,,, and I checked if that was my case. I tryed what they say several times in some different ways, but I still can't connect. Even more, if I change something like they say, I get "unmanaged device" and I can't even connect to the internet. And the wired connection works, I'm using it right now on my ubuntu 10.10.
If you want more information, I just tried to ping sites like google.com or ......com using network preferences and it does work, it gets 100% of the packages back around 50ms later, so the internet appears to work. Also, when I connect via wireless, everything works perfectly.
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Jan 14, 2011
I have an acer aspire one running Linpus Lite (i think) - worked fine for a year on wireless and LAN but yesterday I started it up, it connected fine and clicked up the wireless icon but when clicking the "Browser" icon it won't open the browser screen - repeated clicking brings up a screen that says Firefox was stopped and is still open - please shut it down- How do I do this when there are no screen commands ? I have tried switching off and re-starting the unit but no effect. What can I do to fix it ?
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Apr 23, 2010
The computer connects wirelessly to a router. The router is connected to the internet and that is working well. (If i use a cable connection to the router, I can reach the internet).
Why wont the wireless connection reach the Internet? It is a strong connection. It worked before wirelessly. I am on 10.04 beta, with the recent updates installed.
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Jan 16, 2011
My wireless adapter connects to my WPA2 network perfectly, but when I run firefox it says it can't load the webpage, no matter what page I go to. Also, downloading new software doesn't work either. Any ideas please?
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Aug 27, 2015
I've been using Debian for about 6-7 months now. I've had a bit of a major networking problem for the past 4 months or so that I've been trying to fix - specifically, it started when I upgraded to Jessie. I can connect to wifi just fine, and sometimes I can even use the internet for brief periods of time (exceedingly rarely). Then... nothing. No network access, period. I can't ping any outside servers, I can't ping other computers on my network, and I can't even ping my router. Pages I try to load just stay "connecting" for all eternity, network printing fails, and so on.
So after four months of searching online (I've read through way more wireless documentation than I care to say), I finally gave up and admitted that maybe I screwed something up during upgrade to Jessie (as a matter of fact, I did, I had to do the upgrade in two increments [somehow] because my root partition was too tiny by mistake) and I did a clean install. Since I had /home on a separate partition, I was able to keep all my user files, but all settings regarding networking were wiped. So after installing firmware-iwlwifi so I can use my wireless card, I tried connecting to wireless! Success! Then I tried connecting to the internet... success! Briefly. The next morning I tried using the internet again, and it failed in exactly the same pattern as before.
I don't know much about what's going on here, but here's what I do have available:
I do have to use firmware-iwlwifi, which I installed by doing apt-get install firmware-iwlwifi. I don't think it's an issue with the wireless card itself (hardware-wise), the laptop dual-boots Windows 7 (that I never use anymore), and Windows 7 is able to connect to the internet just fine. Connecting directly to my router by ethernet cable works fine, I have perfect internet/network access then.
I can confirm that my laptop is receiving an IP address and that it is using ARP correctly to get the MAC address of my router (I confirmed this by doing the arp command, it has the MAC address correct, I checked from another computer with my router's config page) All other computers on my network work perfectly with my router. To confirm the router/its configuration isn't at fault, I did a full factory reset of the router, but to no avail.
Out of curiosity I tried installing Wireshark (using an ethernet cable to download it) to monitor what happens when I try to access a webpage. I'm no expert on networking, but I noticed something out place when I compare a capture from the affected computer to a capture from one operating normally - there are a lot of STP packets showing up. I did some checking around, it looks like STP is involved in bridging and more complex networking setups (involving switches, for example)... but it shouldn't be found on a home network, especially where there's no bridging whatsoever. These STP packets don't show up on packet captures done from any other computer. I've attached a packet capture from the affected computer here, since the forums won't let me attach a .pcapng file.
Here's the output from a few commands I ran during past troubleshooting sessions:
Code: Select allsudo ifconfig
eth0 Link encap:Ethernet HWaddr e0:db:55:b5:fe:06
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:12455 errors:0 dropped:0 overruns:0 frame:0
TX packets:7781 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
[Code] ....
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Mar 10, 2011
I'm using the new opensuse 11.4 with KDE desktop. I can connect to my WPA2 personal network fine, but some other networks, like a WPA2 enterprise network connects, but no Internet(pinging too) resolves.
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Jan 20, 2011
i have a leased line ( speed 2 MB ) which we use to connect to our mail server , oracle ERP etc.. we have a dhcp scope defined as 192.168.100.1-192.168.101.254. with a default gateway as 192.168.100.90 ( which is a cisco router ) we have a pix firewall ( 192.168.100.10 ).. now the gateway passed all the request to firewall..
we have an ADSL of 4 MB speed.. ip is 83.*.*.230 from ISP. i have a proxy server ( squid ) eth0 is connected to ISP (83.*.*.230).. eth1 to LAN ( 192.168.100.79 ) now the problem is when i put default gateway to eth1 ie 192.168.100.90 the squid connects to internet via leased line.. if i leave the default gateway field empty on eth1 , the squid connects to internet via ADSL ( which i want ) but the problem is no one on the lan cant ping the squid server ( no connectivity to internet for the whole LAN ) how can i solve this problem? i want squid to connect to internet with ADSL, but if i put gateway on eth1 ie LAN squid goes through leased line which i dont want to happen.
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Oct 15, 2010
Since I have 3 Network cards in my Desktop PC I've configured it to act as a Router using GNU/Linux Ubuntu Lucid in combination with Samba so I could share my internet connection. It works on any laptop a connect to it using any of the network cards ports [regardless of the operating system installed on the Laptops], but when I plug that same network cable to any Desktop PC [regardless of the operating System installed] it doesn't even light the LED in the netcards. From the Client PC seems like nothing is plugged in the the netcards.
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Jan 7, 2010
Got a laptop with a RTL8187B wlan card, installed opensuse 11.2 on a 50gb partition. Card was detected straight away but only connects when I enter ip addresses manually, DHCP don't work.
When it is connected it always stays at a speed of 1mb/s and it cannot ping my router or anything else.
Me kernel is 2.6.31.8-0.1-desktop
Searched around the forums but no love, tried compat-wireless but it started crying about dependencies. Modprobed it too..
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Mar 9, 2010
In openSuse I can connect to a wireless network. It says that it is connected, and I can open the router page (http://192.168.1.1/basic.html). But I cannot load any other pages. Nothing else recognizes internet either; I tried using konqueror, YAST and wget with the command line, and none of them could load anything. It is not a router problem or a wireless card problem because both Ubuntu and Kubuntu can connect, from the same computer. I know this is odd because in the only other thread I could find with this issue, it was a different distro and installing openSuse seemed to fix it.
Hardware:
Computer: Yakumo Notebook model 331
Network Card: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
RaLink RT2500 802.11g Cardbus/mini-PCI (rev 01)
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Jan 9, 2011
I have an Acer Aspire One D255 netbook with opensuse 11.3 installed and after several painstaking days of tinkering I successfully installed the broadcom wl drivers, and now my wifi card is operational. However, i can connect to my wireless network, but still have no internet access. I have searched the forums and google for a solution but most issues I have found that are similar to mine have been resolved once the wl drivers and firmware where installed
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Aug 9, 2010
I have one pc on which I have installed slackware and samba (fixed IP, mask 255.255.255.0) I have another PC (also XP) which also has fixed IP running XP, and I can connect that to the slackware server easily My third PC connects to the internet and gets its IP address from the Cisco router(?) that provides the IP and mask on boot up.
I tried changing the IP and Mask on the slackware server to match the internet PC (which uses a mask 255.255.254.0) but the PC mask and IP changed on the internet PC I want the PC that connects to the internet to also be able to connect to the slackware server, but I see no need for the slackware server to also connect to the internet - I will mainly use it as a file server When I worked for another company I think the IT department talked about having 2 network cards in the PC that connects to the internet
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Jan 8, 2010
I have a running proxy server that I wish to also turn into a VPN server.The VPN is not used so much that a user can access the network but is used so that they can obtain a geo specific IP address for their applications (the proxy server only does this for HTTP).I would therefore like to block off the VPN from accessing any of my Linux box's ports such as email, web server etc.Clients are given local IPs of 172.16.0.x.What should I take into consideration to block off clients from accessing dangerous stuff on the network?
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Nov 29, 2010
There dosent seem to be a guide for this...i can use pptp vpn on ubuntu-how do i use openvpn-a step by step guide would be really useful!!
The vpn provider i use is called 'hidemyass' vpn-anyone know if openvpn will work on ubuntu with this?
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Aug 6, 2010
I know Windows forward and backward but I am so new to linux it's just wrong. I just installed fedora (like 1hr ago) on and old toshiba laptop with a WiFi PC card. Everything seems to work fine except. My Networks connects to my home Wifi network but it will not connect to internet. When it connects the IP address isn't even close to being in the same range as my other laptops and PCs. Like I said I'm new to linux but I'm wanting to learn. Any fixes for this issue? Which linus book is the best one to read for a beginner? Other then not connecting to internet I have no complaints.
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Jan 5, 2010
A couple of weeks ago I was using openvpn with a provider of PVNs on a home wifi network with no problems.I had installed openvpn using apt-get install and downloaded theopvn PVN files from the organization.erything worked fine.I would type sudo openvpn nameoffile.ovpn and then add my username and password during the installation process.However, when I try to do the same on an Ethernet network, the installation work fines (as above) and informs me that everything is connected (same as on the home Wifi network) but Firefox and all other software cannot connect to anything on the Internet.I contacted the organization who said the DNS was a problem and I needed to install resolvconf then modify each .opvn file using up /etc/openvpn/update-resolv-conf and down /etc/openvpn/update-resolv-confcauses the installation to hang because it does not like openvpn pointing to an external file.Irrespective of the problem I have with this "solution", previously I could use openvpn without modifying the .ovpn files. It just worked! I wonder if anyone knows why using the exact same configuration on an Ethernet network (which I have not used before with openvpn) is causing problems
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Jun 20, 2010
I'm running Ubuntu 10.04 LTS as a VM in Hyper-V, and accessing it via VNC with a machine in the same broadcast domain. I'm using OpenVPN to connect to XeroBank. I have instructions for configuring iptables to permit establishing and using the XeroBank connection, while blocking all other traffic on eth0. I've followed them successfully. I need to also permit the VNC connection, and haven't managed that. FWIW, the VM is at 192.168.111.12::5900 and the workstation is 192.168.111.2.
The attachment to this post lists the recommended contents for each Shorewall file. Which files need changed, and what do I add to each?
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Jul 17, 2010
I just installed OpenVPN using apt, and it doesn't seem to have components which are distributed with the source, such as easy-rsa. Why would tools like this be excluded from the package? I prefer to use apt rather than compiling from source, to keep things neat and simple.
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