I virtualised backtrack on windows 7, and set up the network connection to bridged mode, but my networking still fails.
dhclient eth0, outputs many DHCPDISCOVER but no DHCP offers.
I am trying to setup an OpenVPN server in bridged mode (Ubuntu 10.04 Lts). The goal is for the clients to be able to reach all the servers behind Openvpn server's lan. I have followed the official OpenVPN guide for Ubuntu 10.04.
My network setup is:
Private lan: 10.90.90.0-255 255.255.255.0
Gateway: 10.90.90.1
Openvpn server ip: 10.90.90.8
Gateway public ip: 79.xxxxxxxxx
I have forward port 1195 to the Vpn server through my gateway firewall.Besides that no other firewall is running.I can connect and ping the server both from windows and ubuntu clients. The difference is that from windows I can reach the private lan but not from ubuntu clients.
Im trying to setup multiple domU through the default bridge setup. I am able to access only one of them through the network at a time. If you ping one of the domU it works perfectly but you cannot ping any of the others until you stop pinging the one and even then it takes a bit before you can. Ive looked around for a while and seen similar problems but nothing ever seems quite the same. Im probably missing something really stupid. Or is this the way the bridge is supposed to behave? Do i need to use a routed virtual network?
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Newbie Question: How do I setup networking on openSuSE 11.4 on an HP Proliant DL385 G7 with 4 NICs to host Windows 2008 R2 on Xen? I've installed openSuSE 11.4 with all the patches (and most of the server patterns - Mail and News, LAMP, LDAP, Samba, etc.), and I've installed Windows 2008 R2 in a Xen virtual machine. I'm having problems configuring the 4 NICs eth0, eth1, eth2, eth3 are "bound" without an ip_address as br0
eth0 connects to my ISP - currently through a private LAN - It connects directly to the router with static IP 192.168.0.105 Eventually, one of the other NICs will serve ip_addresses via DHCP to a separate LAN (for use in an office setting), and eth0 will be set with a static IP from the ISP That means, eth0 will be static to the ISP, and the other NICs will attach to a switch serving private ip_addresses in the 192.168.0.xxx range.
Currently, I have br0 unconfigured and eth0 static. I have configured eth0 in the External Zone and br0 in the Internal Zone in the firewall, and all the correct ports are opened (afaik) I have enabled masquerading. Hostname, Domain (workgroup), DNS Server addresses and IPv4 Gateway are configured.
Windows 2008 R2 (Guest VM in Xen) "sees" the other machines on the network, and "browses" the internet, although it will not download patches except intermittently. I have not tried connecting to it from the LAN Eventually, I wish to run Windows Terminal Server. openSuSE cannot "browse" the internet, though it initially did. What am I missing? I "think" I need routing or NAT, or I may have my bridge setup incorrectly, although I've tried almost every combination. Google says Xen should be setup with either NAT or a Bridged Network.
Output of ifconfig:
br0 Link encap:Ethernet HWaddr 3C:4A:92:76:B8:F2
inet6 addr: fe80::3e4a:92ff:fe76:b8f2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:953 errors:0 dropped:0 overruns:0 frame:0
TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:119849 (117.0 Kb) TX bytes:368 (368.0 b)
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I am trying to setup a network bridged Server on Centos 5 like belows,
Broadband Router (NAT mode) ---> Bridged server (with t Proxy)--> Client PC .
after installing and configuring bridge, client can browse. But, i want to make this server working as a transparent proxy.But, my bridged proxy is not working. i need to use iptables command to make it properly.
I have virtual box installed which automatically installed bridges for my network adapters. This has always worked fine. I'm attempting to set up a static IP for this machine now. I use NetworkManager, and the physical connection (eth0) is set to static IP of 0.0.0.0, and the bridge (br0) attached to eth0 was set to DHCP. I changed br0 to my desired static IP and lost net connectivity (I'm talking about the host, not the virtual machine - I'll get the host working first). Re-enabling DHCP restores connectivity. So I don't know what the problem is, but I am unable to assign a static IP to the bridged connection. Do I have to do this differently? Do I need to remove the bridge so I am using just eth0 again, assign the static IP to eth0, and then re-install the bridge? I haven't tried that yet because a) I don't know how to remove & reinstall the bridge, because it was done automatically by Virtual Box installation, and b) I could probably do that if I had the time figure it out but right now I don't.
I set up a static IP on wlan0 on another machine using Network Manager and it works fine. That machine also has Virtual Box installed but for some reason doesn't have the bridged connections. (Perhaps because it runs Ubuntu, not OpenSUSE, if that makes any difference)
I have installed qemu/kvm and created a Bridged network connection which works just fine(Windows 7 VM won't work in NAT mode.)
But when I try to use NetworkManager it says that I have no network connection because the network isn't managed, (I set the settings in ifcfg-br0 and ifcfg-eth0 to be managed)
The real problem is that now I can't use my VPN connections (I have many) in NetworkManager.
Is there a way to have both of these pieces of functionality?
I am using FC14
I am trying to Setup citrix ICA client 9 on Ubuntu 9.04 Server. I installed it very easily and I am not getting any lib error also. But when I try to connect to the citrix server, it fails with a pop up saying "Error in Network Connection Network or Dialup connection may be preventing ......" This is driving me crazy from 3 days. My project is to check the feasiblity of a Linux desktop
View 1 Replies View RelatedHow to set up a bsnl bridged internet connection wth username and password in kubuntu 10.10 ? i tries pppoeconfig but it didnt give me any solution.
View 4 Replies View RelatedI'm configuring a CentOS 5.5 2.6.18-194.17.1.el5.centos.plus server in order to have multiple VirtualMachines in it. The throughput of the machine is at least 300KBps (yes KB), I configured two web servers one on the virtual machine and the other in the physical machine, the difference was: 300bps-3 KBps on the virtual machine, 230KBps on the physical machine.
The configuration is as follows:
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If I attach the public ip address to the virtual machine this gets smoothly.
I need some advice on setting up VPN. The situation is as follows:
Server => Centos 5.5
Clients => Fedora, Ubuntu, Win XP, Win 7 (and possibly mac)
The flow could be as follows
Code:
Client=>10.x.x.x=========>10.x.x.1<=VPN Server=>192.168.x.1<=========192.168.x.x<=Server in LAN
A bit of explanation of the above. I would like to allow any client (be it any Linux version or Windows), to connect to the VPN server, obtain an IP Address and then function as if it is in the LAN and be able to access all the servers in the LAN. So the connection between an external client and the VPN server will be through the 10.x.x.x ip range and the server and the internal machines will be through the range 192.168.x.x. After going through the internet, I have decided to deploy OpenVPN client/server, with bridged tap interface in the server and the client.
So up until I updated from Opensuse 11.3 to 11.4, I hadn't any issues with my network connection. At least none worth mentioning. Once I installed 11.4, I've had weird issues with varying lengths of connection. Sometimes I can't connect anywhere, sometimes I can only get to the router, sometimes I'm 100%. I'd fiddle with YAST until everything worked. I honestly have no clue whether or not anything I did had any effect.
Enough of the iffy history, here's what's happening now. For the past few weeks up until last night, I have been at 100% connectivity. I never turned off my computer until last night (it just shut itself off, like the cord was unplugged. I dunno what happened, maybe it was my foot, maybe the PSU. I think it has happened before.). When I turned it back on, I was only able to connect as far as my router (192.168.1.1, a D-Link Gaming router that has always been very good to me). I could not make it to my modem (192.168.0.1, a Quest DSL modem. Once I can get here, then usually I'm good to go 100%).
I tried again this afternoon, and no change. I then get the crazy idea to unplug the ethernet cable from it's PCI-card home and return it to the onboard port (which I long ago declared defunct). Immediately after plugging it into that port, I ran "ping 192.168.0.1" and I started getting returns. I open up Firefox and try to load an external page, and nothing happens. I go back to the console that I was pinging from, and it had stopped. I start pinging my router, and no luck. What I conclude from my little experiment is that the router is not at fault.
1. It did not change at all between being at 100% and being at 0% after reboot.
2. I was able to get returns from the modem, past the router, for a brief period of time while using the defunct ethernet port.
Since I never had these problems before updating to 11.4, I'm inclined to believe that it was the update that started these problems.
I am trying to get a bridged connection to work in centos
Here is the network diagram [url]
There are two interfaces in linux system , they are bridged and connected to the windows system I am not sure if I need to enable STP in the bridge or not?
I'm trying to share the internet connection from my Ubuntu 11.04 desktop to one of my laptops (Mac OS X) using an ad-hoc network. Really I don't care what kind of AP the desktop broadcasts as long as I can share the internet connection. According to the documentation on the hardware the adapter supports ad-hoc. However I am getting the 8B06 error below.
The problem:
iwconfig wlan0 mode ad-hoc yields ->
Error for wireless request "Set Mode" (8B06) :
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how to configure a bridged connection in where we are required to enter username and password.I am currently using PPOE type connection of my modem(A Nokia siemens ADSL modem).
View 3 Replies View RelatedI'm using a Debian box as a gateway. I'm planning on bridging my DLink 604T modem/router so that traffic on the LAN goes to my gateway (which only has one NIC). The Debian box is running a PPPoe application which I'm hoping to log into the ISP through the DLink. I plan to configure the box as a squid transparent proxy. Most Howtos I've seen use NAT with 2 NICs, eth0 for the LAN and eth1 for the Internet. Any step-through to set up NAT for this?
View 4 Replies View RelatedI wonder if it's possible to configure Debian so that it keeps network connection live while in sleep mode
View 3 Replies View RelatedI posted this in the Networking section, but should probably be over here. Couldn't move it. I have a transparent proxy in place. I have Webmin installed on the server. Is there an app that can monitor bandwidth in real time? Also run reports? I have SARG installed, but seems to only monitor HTTP traffic, I need to monitor all traffic. I have a bridged connection, but monitoring the outside interface is fine too.
View 5 Replies View RelatedI have a bridged network setup ifconfig -a gives following output
Code:
br0 Link encap:Ethernet HWaddr 00:26:b9:82:42:38
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::226:b9ff:fe82:4238/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:150779 errors:0 dropped:0 overruns:0 frame:0
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3) What are these vmnet1,vmnet2,vmnet3,vmne4 which I see above. I used kvm and virt-manager to create a bridged setup.
when I tried to install Nvidia driver for my computer, and when I reboot it, I found i can not log into the x-window mode as the screen display freeze at the point where suppose to be login screen. so use grub go to text mode, try to reinstall the akmod-nvidia xorg-x11-drv-nvidia-libs.i686, but it failed, sames i don't have internet connection to retrieve it. how can I start my network connection under text mode?
View 13 Replies View RelatedI have a Huawei E173u-2 mobile broadband usb stick. It is recognised as a gsm-modem and shows up as such in the networkManager-plasmoid. I have set up the connection details for my ISP (O2), but I can't connect. When I click on the connection, "signal strength" is shown as well as "operator" (o2 - de). The "connection state" changes to "Preparing to connect", then "Setting network address". Then the modem vanishes and comes up again a few seconds later.
Here is the log (/var/log/messages):
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It seems like there is a connection for about 5 seconds, then the modem hangs up and restarts .
The stick works fine with our windows netbook, so I don't think it is a hardware failure.
How do I get this working?
My system:
opensuse 11.4
kernel 2.6.39-30-desktop (2.6.38 gives the same error)
kde 4.6.3
plasmoid-networkmanagement 0.9.svn1192577-168.6
Before I go any further I must admit that I'm pretty rubbish at setting these up, so please be gentle!
Now my problem; I have a normal desktop pc (I don't want to set it up as a server) but when I check the hardness of my set up with Gibson Research Centre, it fails. It can see ports 22,23,80,443 as closed but still visible.....? I have never had this happen to me before and struggling my way through yast firewall tool, I can find no easy way of sorting this out.
Having just installed OpenSuse 11.3, NetworkManager identifies my wireless network, but repeatedly fails to make a connection. Without further ado, here are the outputs to commands requested in the first sticky thread:
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I recently took a WIRED internet connection (from the people who provide cable TV) and switched from ubuntu to openSUSE11.2. . I am not able to set up an internet connection in openSUSE 11.2. I have been given a static IP, and the following info
subnet mask
gateway
dns server
alternate dns server
how do i setup an internet connection with these in openSUSE 11.2.
Today I switched from Ubuntu to OpenSuse. But I can't setup my Ethernet connection.I have 2 PCs connected with a crossover cable, one with Ubuntu, the other with OpenSuse 11.3. Lights are on in both NICs.
View 9 Replies View RelatedI have just done a new install of the latest opensuse 32bit and for some reason I cannot connect to the internet, when I click on mange connections the vpn tag is highlighted and all the other tabs are grayed out and I cannot select them. So I can't setup a internet connection wired or wireless. I was just using Kubuntu and did not have this problem. My card is broadcom.
View 9 Replies View RelatedI'm trying to set up a wireless or wired network (wireless would be better...) to share my connection with my housemate, as well as with some devices. The only guide I found regarding this (I must admit, I didn't have much time to put into research), was dating back to 2005, and although doable, seemed somewhat confusing. Getting to the point: is there a way (maybe a standalone program, or some kind of plugin) to share a connection?
View 9 Replies View RelatedI am attempting to set up an automatic transfer via sftp using public key authentication. I have created a public/private key pair to connect to the remote server without using a password. I have also been able to use this key pair to login from the command line: sftp -vvv -oPort=<server-side port> user@server.Debug info from interactive command:
Code:
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
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I am trying to install tomcat on my centos 5.6 box(vm) and it is giving me failure for make operation.
[panther@localhost unix]$ make
(cd native; make all)
make[1]: Entering directory
`/home/panther/apache-tomcat-7.0.19/bin/commons-daemon-1.0.6-native-src/unix/native'
gcc -g -O2 -DOS_LINUX -DDSO_DLFCN -DCPU="i386" -Wall -Wstrict-prototypes
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I have an adsl modem acting as a bridge to my router my setup was working well for more than year now , but then the internet went slow . I set the modem back to PPPoE the problem was with the DNS server of the ISP so using ifup i set the dns t 8.8.8.8 (google) the connection is back , but when i set the modem back as a bridge slow internet does the router know that my dns is 8.8.8.8 or i should set the dns on the router ? I can't see an option to set the dns on the router ( i just enter my username and password from the isp to use PPPoE mode ) by the way i called the isp support they kept telling me to restart , i told them i did but i never restarted my pc . I'm sure if i tell them i'm running linux they will blame the os !
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