Networking :: Host A Service On Eth0 While Default Route Is A VPN?
Aug 21, 2010
I am attempting to run apache on my linux router while connected to a VPN. My default route is set to the VPN endpoint and I cannot control port forwarding at that end. I cannot seem to connect to any service that i bind to the eth0 interface. I believe that my iptables rules and OpenVPN are the source of the problem.
/sbin/iptables -t nat -A POSTROUTING -o tun1 -j MASQUERADE
/sbin/iptables -A FORWARD -i tun1 -o eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT
/sbin/iptables -A FORWARD -i eth1 -o tun1 -j ACCEPT
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Apr 12, 2011
Yesterday I installed a RaLink RT2800 802.11n PCI on my squeeze system. Now I have a connection to Internet but I can not connect other systems in my home network. An ssh-try to a system in my home network results in: ssh: connect to host xxx.xxx.xxx.xxx port 22: No route to host If I use my eth0, I do not have connection to Internet, but I can connect other systems in my home network.
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Dec 10, 2010
I'm running Linux Mint 10 . I have a wireless PCMCIA card (Linksys WPC 11 ver.3) that I've put into master mode, and I'm trying to set up my laptop as a wireless hotspot. I am very confident that I want to do this and have no interest in using a wireless router....I say that because that topic inevitably comes up with posts like this. The problem I'm having is I don't understand how to get wlan0 and eth0 to "talk" to each other...That is, I don't know how to set it up so that traffic from wlan0 goes through eth0, so that devices that connect to my hotspot can access the internet.I've seen a few guides about this, but they were either much broader in scope (i.e. much more complex), or for other distributions, etc, and it's too much for me to follow as a linux .
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Jan 18, 2010
I want to add this route but I am getting this error message. What is the reason of this problem? I cant add this route? how can i add?
Code: [root@linux/]# route add -net 10.1.0.0 netmask 255.255.0.0 gw 10.2.0.1 eth0 SIOCADDRT: Network is unreachable
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Dec 9, 2010
Im setting up a server thats connected to a large network. Now my external ip on the network is static and is 10.0.12.15. What I want is to create a dhcp network using the second port of my box. The first port eth0 goes to my network with the static ip 10.0.12.15 and my second port is connected to a switch with the static ip 192.168.12.1. Now dhcp works fine but none of the boxes that are connected to the internal ip cannot connect to the internet. Iv tried using squid and manual static ip routes. Im not using network manager or anything cause its a command line server.
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Aug 21, 2009
I use linux.
I have below error, no route to host.
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Apr 11, 2010
I have 3 computers on a local home network. Computer 1 is not receiving incoming anything from other computers on the network, and I don't know why. The regular internet works fine.
Computer 1 can ping and ssh into either 2 or 3. 2 can ping and ssh into 3 and vice versa. But nothing can ping OR ssh into 1. Trying to do so says "no route to host".
All computers are running Ubuntu Karmic.
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May 9, 2011
I have a server that I can ping, and I can connect remotely with ssh to it. But when I try to connect to apache (port 80) I get "no route to host". But I can connect to localhost It's not just my client system that is having this problem but also systems that are on the same subnet There is no firewall running on the server route on the server
[Code]...
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Feb 22, 2011
We have a Red Hat Linux server that sends email out daily. It points to and Exchange server for smtp. It works fine, however, at least once a day, an email will fail and in the maillog I see "No route to host". After a few minutes, everything is working fine. The Linux server and Exchange are on the same VLAN and IP subnet.
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Feb 14, 2010
I have two system, an Intel Core2 Duo system running the 32-bit version of Fedora 12, and a MacBook Pro running the 64-bit version of Fedora 12. I'm using the Gnome desktop on each system. I have enabled all the services I believe are necessary to support NFS including nfs, rpcbind, rpcgssd, rpcidmapd, and rpcsvcgssd on each system. I have added an entry to my /etc/exports file to export my home on each system, and if I type this command:
$ showmount -e localhost
I get a result like this:
Export list for localhost:
/home/tron 192.168.200.101,192.168.200.100
However when I issue this type of command:
$ showmount -e <remote host name>
I get this kind of result: rpc mount export: RPC: Unable to receive; errno = No route to host Research on the Internet indicates this is usually due to a firewall problem. However, I use the Firewall Configuration application to the disable the firewall on both systems, and I continue to get the same result. What is needed so I can get this two machines to display their exported file shares remotely? It turns out I did not disable the firewall when I thought I had. Now that I'm certain the firewall is disabled on both systems, I'm able to get the showmount command to succeed.
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Apr 11, 2010
I have 3 computers on a local home network. Computer 1 is not receiving incoming anything from other computers on the network, and I don't know why. The regular internet works fine. Computer 1 can ping and ssh into either 2 or 3. 2 can ping and ssh into 3 and vice versa. But nothing can ping OR ssh into 1. Trying to do so says "no route to host". All computers are running Ubuntu Karmic. I don't even know where to start figuring out what's causing this, but it's probably something simple. I'm using the IPs I found listed in my wireless router's web-based control panel.
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Apr 3, 2010
I am using Fedora-10 on 64-bit quad-core xeon processors. I ran ssh-keygen and established passwordless connection between host-client and created a host file named lamhosts as follows:
172.16.122.11 cpu=4
172.16.122.21 cpu=4
where 11 is the host server and 21 is one of the nodes. When I executed 'lamboot -v lamhosts', it failed to boot nodes ssi:boot:base:linear: Failed to boot n1 (172.16.122.21). By googling, I found the error but couldn't yet find a solution.
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Feb 13, 2010
I have two system, an Intel Core2 Duo system running the 32-bit version of Fedora 12, and a MacBook Pro running the 64-bit version of Fedora 12.
I'm using the Gnome desktop on each system. I have enabled all the services I believe are necessary to support NFS including nfs, rpcbind, rpcgssd, rpcidmapd, and rpcsvcgssd on each system.
I have added an entry to my /etc/exports file to export my home on each system, and if I type this command:
$ showmount -e localhost
I get a result like this: Export list for localhost: /home/tron 192.168.200.101,192.168.200.100
However when I issue this type of command: $ showmount -e <remote host name>
I get this kind of result: rpc mount export: RPC: Unable to receive; errno = No route to host
Research on the Internet indicates this is usually due to a firewall problem. However, I use the Firewall Configuration application to the disable the firewall on both systems, and I continue to get the same result.
What is needed so I can get this two machines to display their exported file shares remotely?
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Feb 1, 2011
I'm setting up apache on centOS 5.5 and administering it from another host on my LAN(this web server has no Xorg). I can ping from the config host to the web server but not the other way. My network is quite a way from being set up so i'm just configuring the web server at the moment, the simplest way i can. It's just trying to get two LAN hosts both with 192.168.1.0/24 I.Ps to talk to each other using a router to connect them.
Here are the outputs of ifconfig and netstat -rn for the web server, the config host and the router:
The ifconfig -a and netstat -rn of the config host are:
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
[code]....
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Sep 3, 2010
I am trying to share directories between two F12 machines on a local network with a router box doing DHCP because not all machines on all the time. Web access is fine and local ping and ssh works but telnet doesn't. I have never succeeded doing mounts. So I have been searching for things to fix the above and have just tried rpcinfo. If I do this :
rpcinfo -p 192.168.2.2 it gives rpcinfo: can't contact portmapper: RPC: Remote system error - No route to host. Does that suggest that actually there is an installation problem? So I tried "yum provides portmapper" and that gives "No Matches found".
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Nov 17, 2010
I have recently set up two machines with F14 and on both, I am completely unable to make remote login via SSH work. openssh-server is installed and seems to work well:
I have already worked for hours on the problem now, using Google and trying numerous things, and still could not find any solution. On my other machine, which still uses F13, remote login works just fine. Is there any change in the default behaviour of the sshd I am not aware of? I would really appreciate your assistance!
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Jun 3, 2011
All I want is to be able to access files on one Ubuntu computer from another Ubuntu computer via a home wireless network. I have been at this for a week now. Scouring the web for answers and so far I have come up with this: Port 22 is open. I have both computers IP addr's via right clicking on the network icon-> Connection Information. ssh is installed and running. Both computers are listening on port22. But when I try Places->Connect to server, I get "no route to host". I'm not a networking guru and I'm at a complete loss on this.
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Jun 22, 2011
I am trying to access a DVD mounted on a machine running Fedora12 (192.168.0.105). I thought this should be possible with NFS, but the above error message is what I keep getting, no matter what I try.
Here is my mount command:
Code:
mount 192.168.0.105:/mnt/dvd -t nfs /tmp/scaleo
The Fedora 12 machine has the NFS server running, and the corresponding entry in /etc/exports is
Code:
/mnt/dvd *(ro)
I thought this might be a firewall problem, but it persists even if I turn firewalls off on both machines (client as well as server.) Also, doing
Code:
ssh 192.168.0.105
is OK, so what is wrong with the route?
I am trying to access a DVD mounted on a machine running Fedora12 (192.168.0.105). I thought this should be possible with NFS, but the above error message is what I keep getting, no matter what I try. Here is my mount command:
Code:
mount 192.168.0.105:/mnt/dvd -t nfs /tmp/scaleo
I now tried
Code:
mount 192.168.0.105:/mnt/dvd -t nfs4 /tmp/scaleo
and it seems the mount succeeded. So, instead of nfs, one must write nfs4?
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Aug 21, 2010
I have a linux router with 2 physical ISPs and a VPN tunnel that all my traffic passes through. I would like to setup a rule to redirect all traffic from one internal IP address (10.0.0.x) through the physical link only. My current script is as follows.
iptables -F
iptables -X
echo 1 > /proc/sys/net/ipv4/ip_forward
[code]....
My goal is to do something similar to the mangle on the tor traffic, but for an entire host.
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Jul 29, 2009
I have 2 clients (one IP 200.x.y.52 and another 200.x.y.47) in ADSL conection and a same gateway (200.x.y.1).
When the server send an email, the error "No route to host" appear. I used TELNET 200.x.y.52 25 (110 soo) and the error occurr in both servers and both directions. The Firewall was disabled .
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Aug 14, 2011
Desktop, laptop, both static IPs, can ping each other no issue. 10.04 LTS.Am attempting to transfer files using Filezilla (which worked when I tried it about two years ago!) and the overall response is 'No route to host'. I have scoured the interwebs and have found no solution. Pretty sure I'm putting in the correct details.
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Nov 21, 2010
My Ubuntu Box has 3 interfaces. eth0 (Internal 192.168.1.0/24)eth1 (External ISP DHCP)eth2 (External ISP Static IP)I need the outgoing traffic to internet for 1 of the internal pc (192.168.1.10) to only go only go through eth2
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Mar 9, 2011
I'm trying to ssh from my laptop to my desktop (both fedora 14) over a local network. I can ping my desktop and get responses, but if I ssh to it, I receive
ssh: connect to host 192.168.100.xxx port 22: No route to host
I can ssh from the desktop to itself.
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Jul 6, 2009
I have the following network/server configuration:
[Code]....
How do I prevent eth1 from being able to overwrite the default gateway that eth0 has already set?!? I read that one can create route-* files in the /etc/sysconfig/network-scripts/ directory to setup static default routes.But those seems to require one to know the IP address of the gateway, but in my case the ISP's gateway is served via DHCP and so it could vary from day to day. Here are the contents of some of the relevant files:
[code]...
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Mar 22, 2011
I'm currently working with Ubuntu 10.10.I wanted to add a default route to a gateway named ppp0.I did it with the command> route add default ppp0It works ok. But then from time to time it suddenly stops and I have to go back again to the server and retype the command. I'm clueless as to why is it happening. I can assure no one is working at the server or doing anything over there.Does anyone know causes that might be triggering route default to stop working?Btw where is the best place to add this command so it will be executed automatically on start-up and without needing to login to the server?
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Jan 12, 2011
I'm trying to set up load balancing using iproute2 following this guide. I've got 4 dsl links as follows:
eth1 - 100.100.100.1
eth2 - 100.100.100.2
eth3 - 100.100.100.3
eth0 - 111.111.111.111 (main uncapped line)
eth0 is the default route, and eth3 is being used for something else. So what I want to do is load balance browsing between eth1 and eth2. I've added all of the routes in the LARTC guide, but the command to enable the load balancing:
Quote:
ip route add default scope global nexthop via $P1 dev $IF1 weight 1 nexthop via $P2 dev $IF2 weight 1 obviously involves creating a new default route. Since I'll be using Squid to push the traffic through the relevant line, how can I set up a load-balanced link for eth1 and eth2 without changing the existing default route on the server?
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May 13, 2011
This is my first use of Ubuntu, but I have previous decent experience on Centos & Mandriva. I've just installed Natty 11.04 on a box that was running a mandriva 2010 - and the network is acting quite strange. When I define a static IP for eth0 through the gui, along with route & dns, it sort of works: ssh is fine, vnc too. However, I have an asterisk running on the box, and it is wild: some packets get lost in the box.
An ngrep shows the packets reaching the interface, but they dont show in asterisk !!! I've done a ufw disable, iptables is empty (why cant I service iptable restart btw ?). ip route list show decent routes (eth0 default); When I switch to DHCP, it is better, but unstable... If i plug a wifi usb stick, it seems to be better... Is there some known issues that could explain this behaviour ? The nic is a: Ethernet controller: Marvell Technology Group Ltd. 88E8001 Gigabit Ethernet Controller
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Mar 26, 2009
So I have two network Interfaces
eth0 - NAT behind a router
eth1 - Public IP
When ever I restart the machine, both interfaces pull a IP, but the it randomly chooses eth0 or eth1 to have the gateway. I want the gateway to be eth0 always.
[Code]...
Is there some file or setting I can modify in Fedora10 that will always choose 192.168.1.1 on eth0 as the default gateway?
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Feb 28, 2010
In an attempt to get something that, well, you know, just works... I migrated a laptop to Karmic server today. Which works fine, except for one thing: when I use wvdial and a Huawei E160g USB modem to connect to the Internet (which is the only option out here in the sticks where I live) no default gateway is set. When I add one manually everything is fine, except that the default gateway keeps disappearing after a while (at irregular intervals, as far as I can see). Nothing appears in any logfile that even mentions the default route, let alone a reason for its magical vanishing trick. My wvdial.conf is fairly pedestrian:
[Code]...
What's going on here? I'm stumped. And the mighty Googlebrain doesn't seem to know, either. How do I get wvdial & friends to set the correct default route upon connecting? Given the fact that without a default route a PPP connection to a remote network is little use, I would expect this to be a standard feature and not something that I'd have to script a work-around for myself. But then, I have been wrong before. Secondly, and more importantly, why does my default route keep disappearing without a trace?
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May 24, 2010
I ask your help to diagnose a problem. For business reasons I use a broadband internet connection via a mobile phone's connected via bluetooth [rfcomm]. Speed is not the maximum but it is more than sufficient for my work. For configuration of ppp I followed this guide Pon pulls up dialup, but I can't navigate also if resolv.conf and default route are correct. In addition I would like to use the NetworkManager that by default, does not see the device. I worked around the problem this way:
I modified the / etc / rc.local so that launch at boot time: # Rfcomm bind yes
After starting Lucid Lynx, bluetooth connects to the phone but NetworkManager does not see the modem.
When I run the connection manually, by: # Pon BluetoothDialup
NetworkManager sees the device, but can not use it because obviously it is locked by the ppp daemon.
So I close the connection with: # poff
Now NetworkManager sees the broadband modem via / dev/rfcomm0, dialup is performed properly. I can finally surf and just enable vpn with NetworkManager. all start automatically at boot, without the need to manually connect and disconnects the dialup to use, finally, the NetworkManager.
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