Networking :: OpenVPN Can't Establish A Tunnel Via Fw2

Feb 10, 2011

I have two firewalls, one primary (fw1) and one fall-back/backup (fw2). On the LAN side the fw's reside in the same LAN segment. I have a client who wants VPN redundancy. So I configured two VPN tunnels for this client. One via fw1 and a backup via fw2. Since the default gateway on the VPN server points to fw1 only the tunnel via fw1 is established. OpenVPN can't establish a tunnel via fw2 because of the gateway and just sits there waiting...

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Networking :: Can't Establish Tunnel For VPN Over SSH?

Jul 20, 2010

I'm trying to create a VPN through SSH but encounter the following:

Code:
[18:42:11]root@bronzhip:/home/casey# sudo ssh -w 0:0 97.**.***.221 -i VPN
channel 0: open failed: administratively prohibited: open failed

[code]....

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Fedora Networking :: Can't Establish A Ssh Tunnel

Jun 20, 2010

I have a headless server, running Fedora 13. I want to make a ssh tunnel to that server from laptop that is also running Fedora 13. Logging into that server over ssh works well, X11 forwarding also works, but I can't establish a ssh tunnel.

At the moment I was trying to connect two small python tcp sample programs, that communicate through port 8000. Running them both on my laptop works well.

What I am trying to do is that I am making two seperate ssh connections to my server, let's say it's address is myserver.com.

1) I make a 'standard' ssh connection to it

Code:

And run the server program

2) I open another terminal window and make the tunnel

Code:

3) I open 3rd terminal window and try to run the client program, that is trying to connect to localhost:8000.

If I understand it correctly, the client should now connect to localhost:8000, ssh would discover that and send that data to myserver.com port 8000. Then the server program on myserver.com is listening on that port and should get that data and send "hello world" string back to the client. Then the client should get that, print it to stdout and exit.

Unfortunatly all what it does is that it just hangs for about ten seconds and then says "connection lost" (timeout?)

I have tried other programs, they also timout.

By passing the -v argument to ssh it outputs:

Code:

When I try to connect the client it prints four more lines:

Code:

So as you see, it says that the connection times out..Also can anybody tell what the "Unspecified GSS failure." means? The possible break in attempt is caused by connecting to the server using the myserver.com address while being in the same local network with the server. If I connect using server's local ip address (ie. 192.168.1.xxx), the message dissappears.

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Networking :: OpenVPN - Establish VPN Between A Client And Server On The Same LAN

Feb 4, 2010

Running Linux Fedora 10 on an Intel Core 2 Duo PC. Runs great. We are trying establish VPN between a client and server on the same LAN. The network is a standard fast ethernet, run great. We are trying to install OpenVPN server, but having a little difficulty. Key and certificate builds seem to execute without a problem. But when we try to start the service we get [FAILED]. I've attached a copy of our procedure.

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Fedora :: Openvpn Certificate \ Installed Openvpn And Config It For A Tunnel?

Aug 9, 2010

i have installed openvpn and config it for a tunnel. my server.conf and client,conf is as follow:

server.conf
port 1194
proto udp

[code]...

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Networking :: Share NAT Internet With Openvpn Tunnel

Jul 31, 2010

I'm playing with OpenVPN and I'm trying to share my VM's internet connection with another VM. My server VM has internet access through a NAT interface on virtualbox. My client can even ssh to the server, so the openvpn tunnel must be working. I've tried on the server:

[Code]...

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General :: Setup VPN Tunnel With OpenVPN

Jan 31, 2010

I need to know the procedure to setup VPN between two network. i setup openvpn access server to do this easy. 1. Step by step procedure to setup VPN 2. Setup VPN with DHCP 3. How to check that open vpn is running successfully.

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General :: Windows - Routing Everything Except A Certain IP Range Through An OpenVPN Tunnel?

Aug 31, 2011

I've been working with my OpenVPN server for a while, and I have a rather interesting problem. I need to redirect all client traffic through the tunnel except for a couple IP's that need to be resolvable locally. The way I'm doing this is pushing these routes from the server:

Server 'PUSH' directives

push "redirect-gateway def1 bypass-dhcp"
push "dhcp-option DNS 8.8.8.8"
push "dhcp-option DNS 8.8.4.4"

I'm seeing that translating into these Windows routes:

Windows routes occurring

Wed Aug 31 15:14:35 2011 PUSH: Received control message: 'PUSH_REPLY,redirect-gateway def1 bypass-dhcp,dhcp-option DNS 8.8.8.8,dhcp-option DNS 8.8.4.4,route 10.8.0.1,topology net30,ping 5,ping-restart 30,ifconfig 10.8.0.6 10.8.0.5'
Wed Aug 31 15:14:35 2011 ROUTE default_gateway=192.168.1.254

Wed Aug 31 15:14:40 2011 C:WINDOWSsystem32
oute.exe ADD 199.[*.*.*] MASK 255.255.255.255 192.168.1.254
Wed Aug 31 15:14:40 2011 C:WINDOWSsystem32
oute.exe ADD 0.0.0.0 MASK 128.0.0.0 10.8.0.5
Wed Aug 31 15:14:40 2011 C:WINDOWSsystem32
oute.exe ADD 128.0.0.0 MASK 128.0.0.0 10.8.0.5
Wed Aug 31 15:14:40 2011 C:WINDOWSsystem32
oute.exe ADD 10.8.0.1 MASK 255.255.255.255 10.8.0.5

I've hidden my server's IP beginning with 199 for security purposes.What I've gathered.I'm assuming that 0.0.0.0 is a kind of code for "everything," so I'm not sure how I could get this to work, but the general idea is that I need a specific IP range (172.16.*) to be resolvable on the LOCAL NETWORK (of the client) meaning it does not go through the VPN tunnel and the client can connect to 172.16.* locally.Is this possible? Routes can be executed through the command line, server "push" or client config options. Any way to get this to work while still routing other traffic through would do, really.

Additional Info: I have the server running on Debian 64-bit and the client running on Windows 7 (although Vista needs to work as well).Client/server configs can be provided if needed.

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General :: Single Application Through OpenVPN Tunnel (Debian Lenny)?

Jan 25, 2010

I'm using Debian Lenny and I want to tunnel rtorrent only through a OpenVPN tunnel. I have a tunnel running, the config file looks like this:

client
dev tun
proto udp
remote openvpn.xxx.com 1194
resolv-retry infinite
nobind
persist-key
persist-tun

[Code]...

My idea is that I could run a sockd proxy internally that redirects traffic to the openvpn tunnel. I could use the *nix "proxifier" application "tsocks" to make it possible for rtorrent to connect through that proxy (as rtorrent doesn't support proxies). I have trouble configuring sockd as my IP inside the VPN changes every time I connect. This is a config file someone said would help:[URl].. As my IP changes at each connect I don't know what to put in that config file. I have no control over the host side config file.

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Ubuntu Servers :: Setting Up A Bridge For OpenVPN / Tunnel All The Traffic Through The VPS?

Feb 3, 2011

I have an Ubuntu VPS running 10.10 x86_64

This is what is in my /etc/network/interfaces right now.

Code:
auto eth0
iface eth0 inet static
address 67.202.x.x
gateway 67.202.x.1
netmask 255.255.255.0
auto lo
iface lo inet loopback
My server.conf
code....

I can get the VPN server running and everything connects fine from the client. I just don't know how to tunnel all the traffic through the VPS because it involves making the bridge which I'm having trouble with. What exactly am I supposed to put in /etc/network/interfaces?

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Debian :: Modify Configuration To Enable OpenVPN To Act As Tunnel Broker

Feb 18, 2011

I currently run openVPN on my Debian box that provides secure ipv4 routing from my laptop to my VPS in a different country (and from there the internet via this box). This works fine. However, id like to sort out ipv6 through this VPN as well as IPV4 and not overly sure how to do it. The remote server itself has native ipv6 configured on device eth0 and it works (ping6, traceroutes all fine,incoming to web servers etc) nicely on dual stack.

How would i go about modifying the config (both client and server if needed) to enable openVPN to act as a tunnel broker to enable the laptop to use the ipv6 through the server as well as the old v4? (the internet connection laptop end will not/does not have native ipv6 from the ISP. Currently im using he-net tunnel broker but id like to run myself through my existing openVPN). VPN config details: Its using UDP, port 1194, creates a TUN interface, redirect-gateway etc and the rest is normal config. Edit:- if it matters the clients are all running windows so i cant use sh scripts to set up stuff client end.

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Ubuntu Networking :: Network-manager-openvpn And Static-key OpenVPN Connection In 9.10

Apr 5, 2010

i have some problems with configuring openvpn tunnel connection to my openvpn server. I'm using static-key tcp connection. Network manager always said to me that connection could not be established. Also, when i try to run openvpn from terminal, i got some strange permissions problem:

Code:

openvpn --config config.ovpn
Mon Apr 5 15:48:37 2010 OpenVPN 2.1_rc19 i486-pc-linux-gnu [SSL] [LZO2] [EPOLL] [PKCS11] built on Oct 13 2009
Mon Apr 5 15:48:37 2010 NOTE: OpenVPN 2.1 requires '--script-security 2' or higher to call user-defined scripts or executables
Mon Apr 5 15:48:37 2010 /usr/sbin/openvpn-vulnkey -q moj.key

[code]....

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Ubuntu Networking :: 10.10 Won't Establish DSL Connection

Nov 24, 2010

What I have:

Computer: Dell XPS M1210
Modem: SpeedStream 51000 - It's SBCGlobal

I followed the pppoeconf setup instructions.

cracker@Jack:~$ sudo pppoeconf Plugin rp-pppoe.so loaded.
RP-PPPoE plugin version 3.8p compiled against pppd 2.4.5

I then asked it to start the connection.

cracker@Jack:~$ sudo pon dsl-provider
Plugin rp-pppoe.so loaded.
RP-PPPoE plugin version 3.8p compiled against pppd 2.4.5

Checked connection information and got this.

cracker@Jack:~$ ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:18:8b:dd:6e:cb
inet6 addr: fe80::218:8bff:fedd:6ecb/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

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Ubuntu Networking :: Establish A Ssh Connection To Server?

Feb 15, 2010

I am trying to establish an ssh connection to my server. I have a regular ssh connection working through the command line, so I know my key works and I have the port forwarding on the router correct.

When I go to Places -> Connect to Server the window comes up properly. The only problem is that the drop down menu only has one option in it for Service Type. It is Custom Location. I have had this set up in the past and there were other options there. I chose the ssh connection and everything was fine. Now it doesn't work.

I have tried to completely uninstall nautilus and reinstall it, but that didn't work. When I did uninstall it, I uninstalled gnome-session as well, and I reinstalled that one too.

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Ubuntu Networking :: Wireless NW - Establish A Connection

Apr 3, 2011

I am trying to set up, I am having problems understanding what steps I need to take but have done the following on recommendation of help from linux forums but am not getting anywhere with what I have done. PC:

Laptop Dell latitude D610
Ubuntu Gnome 2.26.1

I currently have a wired connection to my laptop but am trying to set up wireless, I have put the antenna on the router and have a wireless network showing called NETGEAR, amongst others, which is my primary router name so i'm trying to connect to that but the actual wireless antenna is on the switching hub. For all intents and purposed assume I am a complete newbie with ubuntu and linux command line stuff, I know basics like pwd, ls and so on but need a good bit of help trying to do this. When I click on this wlan network NETGEAR I get asked for the password, on the bottom of the switching hub is a code for WLAN and I put this in, it then asks for a password for a default keyring, which I do not know. How do I find this out?

But I am still not sure what I am supposed to be doing or looking for to resolve this connection problem, not only am I not a network expert I have no knowledge of linux either and steps to follow to establish a connection.

[Code]....

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Ubuntu Networking :: Can't Establish Internet Connection

Jul 18, 2011

I'm using Ubuntu for almost two years and everything has worked well till now. One day I have reinstall ubuntu in my computer, but then something went wrong. I couldn't anymore establish my internet connection. I have tried everything but nothing helped. I even reinstall my ubuntu multiple times but there was no efekt. Even when I installed Kubuntu or an older Ubuntu 10.10, there was no internet. I'm also using Windows 7 but there is always a internet connection. I didn't change any hardware on my computer, only a new AMD graphic card. I'm using wired optical Internet 10/10 MB.

[Code].....

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Networking :: Apache Server To Establish A Domain?

Mar 24, 2010

I have Fedora 12. I just wanted to know that for demonstrating a DNS mechanism between clients and a host, how to establish a domain ? Do I have to configure an Apache server ?

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Ubuntu Networking :: Router Too Far Away - Failed To Establish Connection

May 3, 2010

Dual boot Vista Basic and Ubuntu 10.04 on low spec PC. I can connect to the wireless when I am next to it. I move to the room where the computer is normally used and I lose connection. I can still see it but it fails to establish a connection. Okay, sounds like it's just too far way but when I re-boot and use Vista, it works fine (1 or 2 bars, but it works). Is this a driver issue? Anything I can do apart from move my wireless router?

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Ubuntu Networking :: Atheros AR9285 Not Able To Establish Connection

Feb 5, 2011

I am kind of new to linux and have installed the lucid lynx ubuntu distro (10.04) and then "upgraded" it to ubuntu studio but it still says is the lucid lynx. I got a Samsung Q430 laptop with the Atheros AR9285 wireless adapter.I have everything up and running EXCEPT my wireless card. The wireless card DOES work, it does see all the connections available, but when I choose to connect it does not, and keeps asking for the password.

Weird thing is that when I use my samsung galaxy tab as the wireless adapter for its 3G signal, it does seem to work fine (although really slow). I have tried looking for a solution, some say to just install the drivers, but ubuntu does not recognize anything to need a driver except the video card. I have installed linux-backports-modules-wireless-lucid-generic I have also tried the bleeding edge drivers.

After a while of experimenting by myself I came with the following, somewhat rudimentary. I managed to fix the problem by installing the windows wireless driver utility. Here is a tutorial on how to do it. So I just installed it, went to system/administration/windows wireless drivers and just installed it. Downloaded the file from here [URL]. It may not be the best way to fix it, but it does work. Still if you can use ethernet, don't hesitate to do it.

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Ubuntu Networking :: Lost Connection To Network Printer - Re-establish It?

Feb 12, 2011

I have had long term access to a networked HP Photosmart printer but now I get the following message:

Unable to open device hp:/net/Photosmart_C5100_series?ip=192.168.0.161.

when trying to access it.The ubuntu desktop is wired to the router as is the printer and another iMac wirelessly can still print to the HP. HPLIP status shows the icon for the printer but with a red x indicating no connection to it.The only recent network change was the removal of another router from our network. (service is DSL via a combo modem/router from service provider which previously was connected to a Dlink router which has now been removed from the chain b/c was redundant to the modem/router)

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Networking :: Cannot Establish A Wireless Network Connection From The Terminal In Ubuntu 10.10

Jan 27, 2011

I'm trying to connect to a hidden wireless network in ubuntu through the terminal but i am unable to do so.

I first tried using ifconfig,iwconfig and dhclient initially but i am only able to get an ip address without the default gateway and dns server addresses which i normally get through the network manager applet.

Then i tried using cnetworkmanager but failed miserably again i keep getting this error

Code:

Another applet is running: Bus name already exists: org.freedesktop.NetworkManagerUserSettings (pid 1851)

Then i used nmcli available with the network manager package. i was able to establish a connection only with the connections showed in the list. i use a hidden wireless network. i am unable to connect to the hidden wireless network using nmcli without actually creating a connection from the network manager applet.

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Networking :: PPPOE Connection Noesn`t Establish - Modem Hangup

Apr 22, 2010

I`m trying to establish pppoe connection from Linux clinet to Win server.

I get in ppp.log message:

As I see in this log server gets IP address to client but after connection terminates.

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Fedora Networking :: Unable To Establish Wired Connection - Dell Inspiron

Aug 22, 2010

I have an issue relating my broadband connection, which I am not able to solve. I hope and wish, that I would find some way out here.

Some introduction: I am using Dell Inspiron (i3 processor) laptop, which I recently bought. I have win 7 preinstalled in it. In win 7, the wired broadban connection (Airtel connection) is working fine and have no issues.

I have been using mobile GPRS(BSNL, Ltd) through bluetooth, and that have been working fine. But today when I tried to connect through landline connection, it didn't workout. But the bluetooth connection is still fine. When I tried to do the connection manually through Network Manager, it is not taking the MAC Address. Till now, after installation, I have not updated my OS.

I surfed the net and tried some commands, whose results I am posting below.

From a post I found out, that I should change my duplex settings (from 100 full to 10 full), but I could not get much. The corresponding commands and output,

I have posted below:

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Ubuntu Networking :: At Times Desktop Computer Can't Establish Wired Connection?

Aug 3, 2011

My desktop computer, running 11.04 (fresh install) sometimes can't establish a wired Ethernet connection. Sometimes when I boot, it keeps trying to establish, but with no luck. I keep trying to choose "Auto eth0" from the networking menu, but still, it doesn't succeed. If I reboot, it sometimes works. I can't establish a connection about half the times that I boot.

The computer is connected with a cable to a router ("Belkin Wireless Pre-N router"), and the router is connected with a cable to a cable modem.I've been using Ubuntu for a while, and I've had a problem for the past few versions (since around 10.04)? I thought that it might be some old issue that got resolved, so I did a fresh install of 11.04 today, and still have the same behaviorI'm willing to try things next time I can't get a connection, but don't know what.

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Networking :: Establish A Internet Connection At Fedora Latest Via Mobile Modem ?

Feb 18, 2011

I recently installed linux Fedora 14.... how do i have internet connection via my mobile modem...? i conect via usb

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Networking :: How To Set Up Secure Web Tunnel?

Mar 24, 2011

I'm trying to set up a secure web tunnel at home I have an Ubuntu box (desktop), a Mac, and a Windows 7 box. I use all of them for different reasons. I want to be able to route traffic from my browser through my Ubuntu box. I have done this before with proxy servers abroad, but I want to do it using ssh and my box at home so I don't have to pay for a service i.e (Secure Tunnel)etc.

I followed the instructions at http://bit.ly/hAnp6u. However, using my Win7 box, after I set the browser part per the instructions, I get no connection from the browser.

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Networking :: Multi-hop VNC Tunnel Over SSH

Oct 21, 2010

Is it possible to chain together multiple SSH tunnel hops in a single `ssh -L` command on the client side? I have two gateways I need to get through in order to access a remote host. For a normal SSH client connection, it's simple enough chain this all together by simply appending the additional SSH connection commands to the first one:Code: ssh gateway.1 ssh gateway.2 ssh remote.host.

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Server :: OpenVPN Range Address / When Change Static IP To Dynamic IP In Config File OpenVPN Didn't Work?

Feb 13, 2010

I want to configure a VPN over the Internet.I installed the 'openvpn' package, generated the key file, transfered it by a secure way to the client, and setted up the configuration file.

So, in that configuration file I input the IP addresses of the tunneled interfaces. Both IPs are static in the tunnel.

Then, I've heard somewhere that I can assign a dynamic configuration IP for the client. I do this registering a range.

Well, when I tried to change static IP to dynamic IP (changing '192.168.0.2' to '192.168.0.0/24') in the configuration file, the OpenVPN didn't work.

Obviously I don't know what I'm doing, and I really, don't believe that simply changing the IP will make it work, but I tried.

I hope I explained my problem as well.

My configuration file:

# OpenVPN Server Configuration File
dev tun 0
ifconfig 192.168.0.1 192.168.0.2
cd /etc/openvpn
secret key_file

In client I execute the 'openvpn' without the '--daemon' parameter.Then I want that my client uses a IP in a range (192.168.0.0/24, for example), instead of a static IP (192.168.0.2).I also thought to use a DHCP server, but I'm not sure that will work.

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Ubuntu Networking :: Create SSL Tunnel Over Ssh?

Oct 3, 2010

I Need to make an SSL tunnel over SSH, I need to create exactly an SSL tunnel,I have a situation like that, I heared it is possible,but don't know how to create an SSL tunnel over SSH i am having putty installed on my pc,So i think i can use putty for this purpose, But i don't know how to do this.

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Ubuntu Networking :: How To Create SSH Tunnel

Aug 3, 2011

I wanted to create an ssh tunnel but I do not know what commands to run .. my environment is as follows:
LAN Internet Office LAN
Home PC <-> Linux firewall <-> http server..

According to the above what I figure is that I have an internal web server at my job and I need to create a tunnel to access the web server from my PC in my home. I know I can do a port forwarding with the firewall but I don't want to publish this web server to Internet. My home PC and both servers (firewall and web) are ubuntu. My idea is create a ssh tunnel that forward port 8080 on localhost in my home pc, to the firewall (obviously with public ip), and the the firewall forward to port 80 on office web server at my job. Note that the firewall accepts ssh connections to port 22, same for web server...

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