General :: Configure OpenVPN And Internet Bridging In CentOS?:
Feb 14, 2011
I only have very basic understanding on how it works.This question may have been asked so many times, and honestly I've tried so many tutorials and have read a lot of articles but it all didn't worked. I may be too stupid to have this done, or it is just the lack of knowledge.
Here it goes,I have a VPS with a host which runs OpenVZ in LA. I want to create a VPN tunnel to the VPS and tunnel all my internet traffic to the VPS. Can somebody please help me out on the step-by-step?
I was once able to configure the VPS to run OpenVPN and my client pc was able to connect to it, but the internet connection is still thru with my local connection. Did it with a tutorial too. I would also like to ask, The VPS has 512mb of RAM, I was wondering how many clients can it handle at the same time.
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Jul 13, 2011
I'm trying to set up an openVPN server for a small office. I've gotten the server running, and configured keys, and been able to connect to the server. The trouble is that once I connect with my windows machine to the server, I am unable to bridge through to the www. I have combed through so many settings and tutorials, and I am confused as to how to set up the interfaces configuration file. Here's a sample of my routing table:
Code:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.8.0.2 * 255.255.255.255 UH 0 0 0 tun0
XXX.XXX.XXX.0 * 255.255.255.128 U 0 0 0 eth0
10.8.0.0 10.8.0.2 255.255.255.0 UG 0 0 0 tun0
default XXX.XXX.XXX.1 0.0.0.0 UG 100 0 0 eth0
How should I be configuring this so that when I'm in the VPN I can get through to the internet?
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Apr 21, 2010
Just curious to see what everyone's opinion on using routing vs. bridging for openVPN. I'm installing openVPN on a linux box that I'm using as a router. What I was wondering was your opinions on which one of these two options to use.
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Sep 1, 2011
I'm currently trying to set up OpenVPN on my Ubuntu Server, however I'm having trouble setting up bridging. I am following the tutorial for bridging that is located on the Wiki here: [URL] At the current time my /etc/network/interfaces looks like this (default from Ubuntu install):
[Code]...
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Jan 18, 2011
ok I am using a customized CentOS distro that is looking for 3 network cards on boot. eth0, eth1, eth2. I do not need eth0 and need to bridge it to eth1.
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Mar 23, 2010
My roommate has a slow ADSL provider, and i have a much faster cable connection. He has his own residential gateway, and as do i. The goal i am trying to accomplish is to share 2 printers (1 behind each residential gateway) and also files between computers on the different LAN segments, but not share ISPs or DHCP servers.
Thus far, i have configured my residential gateway's DHCP server to have control of the 192.168.1.0/24 network and his gateway's DHCP server controls the 192.168.0.0/24 network. We've got a Slackware 13.0 Linux box connected on the 192.168.0.0/24 network which currently just serves a web page and accepts e-mail for a domain. My knowledge of networking fails me here as I'm not sure what piece of equipment i would need to buy to solve this puzzle (bridge or router). I know iproute2 can do wonderful things on Linux, and i figure it would be easier to just shove a NIC or 2 in the Linux box and make it do what i need instead of buying more networking equipment.
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Aug 11, 2011
I dont know if its possible or not ? I'm using 3G dongle (ppp0 interface) for connecting to internet on my laptop running ubuntu 11.04 , now i want to share this 3G connection to my wireless router(Trendnet TEW-652BRP) through eth0 interface in simple my connection should be like this
INTERNET<<<3G WIRELESS MODEM<<<LAPTOP----WIRED CONNECTION TO WIRELESS ROUTER<<<OTHER DEVICES (LIKE ANDROID MOBILE/LAPTOPS SHOULD CONNECT THROUGH THIS WI-FI CONNECTION)
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Jul 19, 2011
I am confused as to what is going on with a particular box that I am working with.As you can see in the attached ifconfig print out, one eth port is basically only used as a output while the other is only really used as an input.I connect to the box via 10.20.40.104 for ssh,ftp,http,etc.I just want to know the name of what is happening (is it bonding,bridging?) and maybe some information about where it is configured.I looked in modprobe.conf
eth0 Link encap:Ethernet HWaddr 00:1E:C9:EE:5A:91
inet addr:10.20.40.105 Bcast:10.20.40.255 Mask:255.255.255.0
inet6 addr: fe80::21e:c9ff:feee:5a91/64 Scope:Link
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May 17, 2011
I just started a new job. My company office is in Paris and I am working from the south of France. To work, I have to connect to the office via a VPN access. I have installed a fedora 14 on my laptop and now i want to configure openvpn.openvpn is installed and I wonder if someone can give me a help to configure it and how and where to put the server IP address and what it's required.
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Mar 24, 2011
After restoring from a hardware failure, I cannot get bridging to work again. I reinstalled the host version 5.5, and copied the .img file back onto the rebuilt machine. I also had the network scripts and iptables backed up. Through virt-manager I re-attached the virtual machine, and when I boot it, I get a MAC address conflict on the vm's eth0; "Device eth0 has a different MAC address than expected". The vm had a static ip address.
[root@trngvh ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
HWADDR=00:24:81:E4:FC:02
[code]....
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Apr 14, 2011
Problem: Can't get bridging to work properly.
I'll start by saying that most of this is built inside of a 64bit ESXi 4.1.0 server. Should be obvious by the picture below.
Trying to set up a bridged CentOS box. Ultimate goal is to set up a Transparent Firewall. The machine labeled 'Desktop' is a Windows XP running DHCP. It gets assigned an Internet routeble IP address. At this point, nothing is running a firewall.
Symptoms:
Gateway can ping CentOS bridge
CentOS bridge can ping gateway
CentOS bridge can resolve DNS names and ping FQDNs on the Internet.
CentOS bridge CAN NOT ping Desktop
[Code]....
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Feb 11, 2016
I will see ipcam in my local network from my tablets. I'm install server/client but I can't even ping my Ipcam from my tablet.I'm ping my ipcam from my server
Code: Select allping 10.42.0.22
PING 10.42.0.22 (10.42.0.22) 56(84) bytes of data.
64 bytes from 10.42.0.22: icmp_seq=1 ttl=64 time=0.639 ms
eth1:1 Link encap:Ethernet HWaddr 00:25:22:1c:6e:05
inet addr:10.42.0.1 Bcast:10.42.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet addr:10.42.0.1 P-t-P:10.42.0.2 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:1775 errors:0 dropped:0 overruns:0 frame:0
[code]...
my tablet can receive ip, can see ftp on server but can't see anything in my home network.
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Jul 20, 2011
I have installed OpenVPN for network-manager using "sudo apt-get install network-manager-openvpn". Now I have it in my network-manager, but I dont know how to configure a connection, I have a configuration script, when I import that script in network-manager it automatically creates a connection, but still problems exists ...
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Nov 17, 2010
I have a remote network that I manage consisting of a DLink DFL-210 firewall/router, and behind that a Dell server running openSUSE 11.2 and a collection of Windows XP/Vista/7 computers.
The Linux box is running OpenVPN as a server (that is how I connect to this network) and a client (it connects to a second server - running XP - at a different location).
The DLink router is the DHCP server and provides addresses on the 192.168.51.0/24 network. The OpenVPN server provides the 10.8.51.0/24 address range.
The remote network that the Linux box connects to is 192.168.54.0/24 via the OpenVPN network 10.8.54.0/24.
I have added routes to the DLink router to route all traffic to the 10.8.51.0/24 and 192.168.54.0/24 networks to the Linux box.
With SUSEFirewall turned off, after I have connected via OpenVPN from my remote computer I can ping all active 192.168.51.0/24 addresses. Other computers on the 192.168.51.0/24 network can ping computers on the 192.168.54.0/24 network. But if I turn on SUSEFirewall, neither of these work. However, I can ping 10.8.54.1 from any computer on the 192.168.51.0/24 network.
How can I set up SUSEFirewall to allow these networks to communicate with eachother?
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Jun 27, 2009
This will be a little long (having read Phil's 'how to ask questions' FAQ). I'm trying to get OpenVPN working between my CentOS server and some Windoze laptops running XP. There seems to be plenty of sample
config files available, but to date, none of them have worked for me. Pulling out my trusty Wireshark, I've found some clues,
BACKGROUND:
My local subnet (NAT'ed by my gateway router) is 192.168.52.x. My router has been configured with a conduit (port-forward) for port 1194 (the standard OpenVPN port), which points towards my CentOS server.The CentOS server is .52.112, and the supplicant is .52.110. I have tried the lient both inside and outside my local subnet, with no difference in events or outcomes.
[Code]...
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Aug 9, 2011
I have tried to install and configure Hudson in centos distro version 5.Installed hudson with tomcat by deploying .war files.after configuration was completed, builded a project.It displayed build was completed successfully.but I was not able to download output of build.
So I rechecked configuration,found that i havent set artifact file pattern to archive. how to set artifact file pattern and how to get build output. how to manage hudson by using configure system and configure options.what is the correct way to configure public hudson?.
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Dec 28, 2009
I'm in troubles with the OpenVPN, I've seen tons of tutorials on the Internet of how to setup it, but failed at last... If somebody could help me a little, I'll really appreciate that.The problem is, I can connect to VPN server, passed the authorization, but I can't surf the Internet through the OpenVPN server...
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Apr 24, 2011
i need to configure postfix on centos to relay email from the internet to the Exchange Server and i also need that emails sent from the exchange within the same domain be sent to postfix then resent to exchange because i have spamassassin and clamav installed on centos to filter all incoming and outgoing mails ...
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Feb 12, 2009
I have one server at home, connected through a router that gives me a static IP:192.168.1.2 - My PC192.168.1.3 - CentOS serverI enabled the port 80 into router forwarding system and I can connect properly to CentOS server, using the IP my internet provider gives me. My router automatically forwards a changed IP to my dyndns.com account so I can also access the server through a domain name (I pay to have it linked to one of my domains).My next step is to configure the mail server (dovecot) , so I can send emails from my local server(192.168.1.3).I was wondering if anyone has any tutorial links or tips to have the mail server configured through a home internet provider + home router.
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Aug 14, 2010
I am new to Linux. Just installed Ubuntu 10.04 few days back. The problem I am having is not able to connect to internet. Mine is direct cable connection using CAT5 cable terminted to my ethernet card. and I connect to the net using a dial-up connection. I think other end of the cable is terminated to a common switch.I have tried searching it over net. The only thing I could figure out is that I have to do some configuration on pppoe (am i right?)Are there any commands I have to enter or anything like we used to do in windows?
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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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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:
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Sep 25, 2010
configure wifi in fedora
THIS IS MY CARD INFORMATION:
Code: 00:00.0 Host bridge [0600]: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub [8086:2a00] (rev 0c)
Subsystem: Dell Device [1028:022f]
Kernel driver in use: agpgart-intel
[Code].....
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Oct 25, 2009
I have a dell wireless wlan 1397 mini card with an ethernet 802.3. Now I am trying to connect by a wired connection. Supposedly a have a bcm5784m nic. I have tried to configue the bcm5784m which was shown it to be regonized through fedora 11, i could activate it, and connection still failed. In my driver list on my dell inspiron and studio 1737 the bcm5784m was not checked as a download i needed. What in the hell am I doing wrong. I have searched exhaustively and have found nothing concerning the wire ethernet card or bcm. Supposidly ubuntu does support the dell studio 1737 laptopForgive my spelling. Oh and by the way I am using kubuntu 9.04 jaunty.
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Mar 29, 2011
I am facing a problem to configure pine. My machine has no global IP, but it is in a LAN. The LAN is connecetd in Internet. The global IP, through which the Internet traffic of the LAN is passed, is known. How can I configure pine to send/receive mail?
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Sep 1, 2010
I dont know anything about linux.i installed fedora 13.but ma wifi is not configured.
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Jan 17, 2011
WITHOUT USE OF INTERNET ,how can i configure YUM server on RHEL-5
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Oct 29, 2010
When I make a vpn connection to an openvpn server, I loose the internet connection.
The VPN works all right.
Server config (extract)
Client config
Client route without the VPN connection
client route with VPN connected (internet lost)
Is there anything I can do to the push rule of the servers's config file?
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Aug 31, 2010
I have some questions about openVPN. I am wanting to hide my downloading through transmission and I'd like to know if I can use openVPN for this? Also do I need access to a server? I don't understand how it all works.
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Apr 20, 2010
I want to configure Internet connection in my linux os but don't know how to do it. In Windows XP the method is quite simple but in linux I know know what to do about, It has been very challenging for me to do it but don't knw how ot do it.This file I have to type at run "RASPPPOE.inf" to get list of available Internet providers.
In windows I do it in this way-
1.First go to My network places ->View network connection->Local area network->Properties->Internet Protocol (TCP/IP)->Install->protocol->Microsoft TCP/IP version 6(select)->Have disk->(then browse to get RASPPPOE.inf file from PPPOE folder)->click OK->select PPP over Ethernet protocol->Click OK->>continue anyway(two times if asked)-> Apply->OK.
2.Then got to run ->Type raspppoe (Enter)->one window will open->select the LAN card (where internet cable is connected)->Click on Query available services->Select Internet provider name and->Click on Create dial up connection.-> Then dial up will be created on Desktop where I enter my username and password to start internet.
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