Fedora Networking :: Connect The Network Where The Openvpn Client Is,throught The Computer With The Client To The Other Network?
May 20, 2009
I have the following problem:I have to networks in remote places.I have an opnvpn client in one network that connects to the the router (openvpn server).My question is,can i connect the network where the openvpn client is,throught the computer with the client to the other network.If yes,how? (please make it an idiot proof anwser because i have limited knowledge about iptables). I was thinking like forwarding (the router in the network with the openvpn client is also firewalling with iptables) the request of the ip class of the openvpn network to the computer with the client,which masquarades the interface
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Sep 4, 2009
I wanted to know if i can install mrtg on a client computer in network and measure the network's router traffic.i know that it can be installed on the server.
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Jul 17, 2011
I have ovpn configuration files for Windows from SwitchVPN. They do not provide configuration files for GNU/Linux. They said I can extract the certificate and key files from the ovpn files, but I'm confused about how to do that.First of all, I don't know which Authentication Type to choose: "Certificates (TLS)," "Password," "Password with Certificates (TLS)" or "Static Key."
Second, I don't know what to put where from the ovpn file. I see a <ca> � </ca> section and a <tls-auth> </tls-auth> section, but I don't see how those correspond to any of the Authentication Types. "Certificates (TLS)" and "Password with Certificates (TLS)" require two certificates and a key, "Password," requires one certificate and no key, and "Static Key" requires a key and key direction but no certificate. When I connect to SwitchVPN in Windows, it asks for a user name and password.Here's an example of the ovpn files (certificate and key contents removed):
Quote:
route-delay 3
fast-io
client
dev tun
[code]...
how to get what I need from the ovpn files, and which Authorization Type to choose in the Network Manager VPN configuration GUI, and what to put in the blanks?
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Sep 15, 2009
This is the first one of probably many posts as I am new to Fedora having lots of questions. This one is about the openvpn client which is used by me to connect to my company network. Thanks to the Fedora FAQ it was easy for me to set up the client and establish a connection. There is just one problem every time I open a connection I am disconnected from my local Internet. I was using openvpn on my Windows XP PC before and there was no problem keeping two Network connections, the (W)LAN and the vpn tunnel. Does anyone know how to solve this? I am utilizing the latest Fedora 11 release and configured openvpn client via the Network Manager GUI.
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May 22, 2011
until 2 weeks ago I had o.S11.3 on both my Siemens and Asus laptops. I have installed NX No Machine. ( I know it's not open source,I am using the free version). With commandline ( root) /usr/NX/bin/nxclient I was able to connect to the other machines. I got Qt: Locales not supported on X server, the NX menu popped up and I was able to connect by inserting resp codes. After fresh install of o.S.11.4 on the ASUS the commandline (root) answers:
xlib: connection to":0.0" refused by server
xlib: No protocol specified
nxclient: cannot connect to X server:0.0
The ASUS can still be reached from the other machines (one with o.S.11.3,the third one with o.S.11.2 ) SSH ( Lan)connections are all working forth and back between the machines, even to and from Win XP, however only from Win 7 on the ASUS, but that's a Win7problem. Comparing the installed xorg-x11- server-extra : on o.S. 11.3 Additional X servers ( Xmdx,Xephir,Xnest,Xvfb ) ,on o.S.11.4 the Xvfb is missing, might that be the reason?
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Mar 29, 2009
how to setup a home network for learning purpose. i have two laptops and a desktop connected to a modem-router for broadband (wired connection), i want to setup one as server and the others as client.
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Sep 26, 2009
I'm using Fedora Core 11 and the client OpenVPN on the network-manager into a segmented infrastructure. It works well.
My laptop is on a dmz wireless Zone 192.168.3.0/24 and access Internet through a firewall via a front-end zone 192.168.65.0/24 with wlan0 interface.
But my laptop can access on a back-end zone 192.168.2.0.24 to a server.
When I start the OpenVPN tunnel, I cannot access on my back-end zone because the kernel routing table is modified (all the traffic is routed through the tun vpn interface)
If I define a static route like route add -host 192.168.2.x gw 192.168.3.2 where x is my file serveur, I cannot connect to this server because the routing is make through the tun interface and not by the wlan0 who can access on is gateway
I want to know where changing the kernel routing table file to access on the Internet and on my back-end zone in a same time.
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Jan 28, 2010
So a while back I was able to mount a directory from my OpenSuse server as a NFS on an Esxi server. After restarting the Esxi server, the NFS became inactive and I was unable to remount it. The error given was that the Esxi client was unable to connect to the Suse server. I was looking into the showmount -a command on the Suse server and it showed the mount point on the Esxi server. Could this be causing the Suse server to reject new attempts to mount the directory? What else can I try to fix this problem? Also I should note that both servers can ping each other.
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Oct 5, 2010
I recently donwloaded boinc and every time I launch I get this error "cannot connect to core client." I went through the guides and opened port 31416 in external zone, am I doing this right? The guide said to put it in the DMZ, what's the difference?
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Feb 7, 2011
I am using nx client and I would like to ask your help. Is it possible when I connect from home to my work's computer (using nx client) to see the exactly same desktop-taskbar and open programs as I left them in my work computer.
Imagine that you are at work using your computer. You lock the keyboard and you go home(you didn't turn it off). You go home and you login to work's computer. What I want to see is the same if I was just unlocking works's computer. IS that possible and how?
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Sep 15, 2009
I'm trying to set up a VPN connection between our CentOS 5.3 server at work and my bosses XP computer at home. At this point, we are kinda locked into Quickbooks. I'm testing the connection from my XP boot at home to see if it works. I can log into our servicemanuals easily enough from XP at home however, the windows takes forever to update. I have the Samba server only listening on port 445 because is seems to work more efficiently at work. I connect to the Samba shares via linux from home and everything works well but, when I try to do anything with the shares from Windows client at home, it's very slow!
I'm thinking that it must have something either to do with the Windows OpenVPN client or the client.conf file. Is there anything I should look at in the .conf file for answers?
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Jan 20, 2010
I have x11 forwarding enabled in /etc/ssh/sshd_config on a suse 11.2 32 bit box running kde I can open x apps on a windows machine using xming and putty just fine, but when I boot the same machine into suse 11.2 64 bit using kde and try using konsole I get: cannot connect to x server
The command I'm using to log in is: ssh -X -l username host I doubt the problem is with the server I'm logging into or it wouldn't work in windows, not really sure what to look for as I've never had a problem using x11 forwarding from a linux client before only windows ones
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Apr 14, 2010
I have a network that consists of a few desktop machines, laptops, and two Internet connected linux servers. The Linux servers are the gateways, routers, and firewalls for my desktop and laptop machines.Whenever I'm away from home; I can connect to my home machines over the Internet by first ssh'ng (technically I use Webmin; because my firewall on each Linux servers blocks ssh from the Internet.) to one of the linux servers and then ssh'ng to the desired machine on my home network.
This works fine for my home linux machines. But not my Windows machines.I'd like to be able to rdp or rdesktop to my Windows machines.Will OpenVPN allow me to accomplish this ?
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May 12, 2011
I have an opensuse 11.3 install which I want to set up as a network boot server to install Solaris 10 on a Sun Ultra 10 client. According to what I've read, this requires rarpd and tftpd which I've set up on opensuse, but also bootparamd which I can't find for 11.3. It seems it was last included with opensuse 9.2. Does anyone know if it's available, if I could use the suse 9.2 version, or any alternative?
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Sep 15, 2010
I successfully installed openvpn and networkmanager openvpn plugin. Then I successfully added a PPTP vpn connection by networkmanager vpn tab which name is "vpn1". But now I don't know how to connect to this PPTP vpn connection. I tried bellow command but no luck.
openvpn --config vpn1.config
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Oct 1, 2010
I am trying to connect to an existing VPN server that I have been using for years now. I am moving my develpment environment over to a Ubuntu box and I must have openvpn working in order to access SVN. It has been a few years since I have been setting up linux boxes. And networking is a soft spot for me. But
The server has been running without problem for a LONG time. A windows computer I have been using connects to it fine and I can access the network on this machine. I am setting up a new computer, but when trying to connect openvpn starts the initialization sequence completes but I cannot ping the network I am trying to connect to.
I use a second VPN connection to connect to an alternative network and it works fine. The difference between these two is that the working vpn connection is a routed IP tunnel and the one that is not working is a bridged connection.
The VPN that is working on this box brings up tun0 while the bridged connection connects but does not bring up a network tun device. The server logs look normal, it just looks like the client is not setting itself up to use the network once connected. (The key/cert pair work find when on a windows box) Just not on this new ubuntu build.
My current client config
Quote:
cert eric@home.crt
key eric@home.key
client
dev tap
[Code]....
The server is using tap, as well as the working windows client uses "dev tap"
It has been a long time since I have been maintaining linux boxes but its coming back slowly.
Do I have to bring a device up manually ?
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Mar 3, 2010
I have a ubuntu 9.10 box that is acting as my firewall. ETH0 is connected to a cable router and my eth1 nats out it. I have br0 bridged to eth1 (private). I am able to ping from my openvpn client into my network but not from a boxon my local network to the openvpn client I watched the firewall and nothing is being blocked on any device. I checked the arp table on my firewall and it does not know about my vpn clients. Any idea's why my vpn clients are not adding themselves to the arp table?
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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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Dec 30, 2010
The question is related to one single desktop machine, with 3 users.
1) the superuser (me)
2) My elder son
3) My younger son.
As superuser, I can access the network (internet router) via "Wicd" perfectly well.
Both Client users can't.
Do I have to give them special user priviledges? If yes, which ones?
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Jan 8, 2011
I wrote a script which sends the server,files from /proc/ like dev,netstat,loadavg etc of a client. i want to calculate the network load and the overall cpu performance of the client using the information from the files.I donot know how to calculate that as i have too many values in those. which values will be useful and how to calculate?
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Mar 1, 2010
I recently ran into a problem with my at&t vpn connection. I'm hoping someone in this forums may be able to help? It's been working beautifully then one day it just wouldn't connect. I'm wondering if AT&T may have something to do with this...? I have tried reinstalling agnclient-1.0-2.0.1.3000.i386.rpm and agnSUSE10Prep-1.0-2.i386.rpm but nothing seem to work.I'm running Linux 2.6.31.12-0.1-desktop i686System: openSUSE 11.2 (i586)KDE: 4.3.5 (KDE 4.3.5) "release 0"
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Oct 26, 2010
I have an Ubuntu server that is currently running Ubuntu 8.10. I was thinking of making it a VPN server for my iPhone and also for my laptop whenever I'm outside and need to access internet over insecure wireless networks. Now that part should be easy I found several guides on how to configure OpenVPN server, as well as enabling clients on iPhone, and OSX.
However, the things is that my server is currently a OpenVPN client also, I have a paid tunnel set up to bypass my ISP blocking incoming traffic on various ports. Is it possible to keep this setting but still enabling a VPN server? Essentially causing traffic from my external device to go in through my tunnel to the VPN server, and then out through the external VPN provider.
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Mar 11, 2010
is there any tools that I can use to get bandwidth speed info between OpenVPN AS and its client?
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Apr 9, 2010
I have an internal network behind a server <10.0.0.1> connected to the internet that NATs my ip <10.17.11.88> only. NAT is not allowed to any other ip addresses. When I use Transmission Bittorrent client to download torrents, The thing is that this 10.20.0.244 is not my machine and doesn't have access to the internet at all. What is happening here? Can anyone help me?
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May 26, 2011
I have configured server ubuntu 11.04. Everything works fine, but there is a need for some clients to connect local hard drive. What should I do? How and what modules are added to the ltsp-image? How to register in the fstab on the client? Maybe I'm going the wrong way?
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Jan 9, 2010
I have openvpn server configured with bridged interface on my openwrt router. The client is running ubuntu 9.10 with config:
Client
dev tap
proto udp
remote x.x.x.x 1194
resolv-retry infinite
nobind
persist-key
persist-tun
ca /home/blwegrzyn/openvpn/ca.crt
cert /home/blwegrzyn/openvpn/client1.crt
key /home/blwegrzyn/openvpn/client1.key
comp-lzo
verb 5
(x.x.x.x was hidden)
When the client connects the log says:
WRRRWRSat Jan 9 20:16:03 2010 us=332404 PUSH: Received control message: 'PUSH_REPLY,redirect-gateway,dhcp-option DNS 192.168.1.241,route-gateway 192.168.1.254,ping 10,ping-restart 120' .....
Sat Jan 9 20:16:03 2010 us=343906 ERROR: Linux route add command failed: external program exited with error status: 7
The server is trying to push default gateway 192.168.1.254 to the client and the client is on 192.168.2.0 network as you can see the route addition fails with SIOCADDRT: No such process. This is because the tap interface does not have any ip and the route addition is not possible. The tap interface is not getting the dhcp address through the tunnel, not sure why (this works on XP). To fix the problem I must manually add the ip to the tap interface, and the default gateway, but then i must add dhcp server to resolv.conf to make it work and once I disconnect the computer does not know the old valid dhcp anymore and cannot communicate. Why openvpn cannot get the ip automatically? Why it cannot grab the dhcp from the tunnel? Is it related to the wireless card being managed by the network manager? This works perfect on windows machine (xp sp3).
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Jan 26, 2010
I'm using OpenVPN 2.1 on Ubuntu 8.10 to connect to LAN behind an IPCOP server. Everything works fine except when I move across the tunnel files which are over 180kb, then I get UDPv4 []: No buffer space available (code=105 surfing the Internet I've found post that suggest to increase these settings on the kernel
> sysctl -w net.core.rmem-max=8388608
> sysctl -w net.core.wmem-max=8388608
> sysctl -w net.core.rmem-default=65536
> sysctl -w net.core.wmem-default=65536
those have actually made a small difference, but not enough for uploading even an image over http. I guess that I can keep increasing those values till I'm not satisfied, but as I'm not sure on what I am dealing with, can anyone tell me if there's a rule of thumb? My machine is a laptop with a dual core processor and 2GB ram.
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Nov 24, 2010
How to login multiple client pc on the same network using via openvpn server from client side
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Jun 23, 2010
My network is barely functional. I'm running 2 linux servers connected by openvpn (tun) through routers on both sides. There are Windows clients (98 and XP) on both subnets. One server (ls3) acting as PDC for the domain. The Windows clients use the respective linux boxes as gateways. On the server side (ls3 which is both openvpn server and samba server), all the clients can read/write properly to shares on both sides. The problems are all on the client side. Share connections to the server side disconnect after a few moments.
Browsing on the client side windows machines is fine. I can see shares on the server side. Some server side files open and are readable, writable, other server side files will not open. Some samba logon scripts on the server side can be opened from the client side. Others open after a long wait to a blank file! Permissions on server side files are set to 777 for testing. If a file won't open or reads "blank", that doesn't change no matter how many times you try. A non-readable/writable file overwritten by a readable/writable one can be read and written to!
I can ping successfully from any client on either side to any other client by either ip address or workstation name. Firewalls on both side are set to forward tcp and udp traffic going to port 1194 to the respective gateway linux boxes. Iptables on both linux gateways are down for testing. I tried reversing the openvpn server/client roles with the same result; the same physical side of the network had the problem. On one of the windows 98 clients, I wiped out the networking configuration completely and rebuilt it from scratch. Same result.
One one of the windows xp clients, I tried to rejoin the domain. It went through successfully but the result was the same as above. The network was operating smoothly for several years until the client side dsl modem broke last week. It was replaced with a newer model and at the same time I migrated from a pptp connection to openvpn. How to resolve this, Is this something to do with openvpn? Is this a network hardware problem? Am I missing something in the port forwarding on the routers? My smb.conf files are ancient except I added interface tun0. I have never seen 2 files sitting next to each other in the same directory where one opens and the other doesn't!
I'm running Mandrake 9.2 on the client side and Mandriva 2008 on the server side. I have a Sonicwall firewall on the server side, a Westell 7500 on the client side. I note that during the modem install, the http port was opened to the linux box on the client side and the access log got huge over the weekend and I ran out of disk space until I closed it down and deleted the log. I tried a simple test while viewing /var/log/daemons/errors on the client side. From a windows workstation in the client subnet, I opened a dos window and tried to print a file located on the samba server on the openvpn server machine which I knew NOT to be problematic.
The file printed and there were no errors reported in the log. I repeated the test with a known problematic file. The file would not print. The errors log noted:
Authenticate/Decrypt packet error: packet HMAC authentication failed
I regenerated the static.key file on the server side and scp'd it to the client side and restarted both openvpn's. I checked for duplicate files named static.key on both sides. Same error.
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Oct 28, 2010
Does winbindd must run on linux box client on network with samba ldap server configured as PDC.
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