Ubuntu Networking :: Samba With Bridge Interface / Cannot Assign Requested Address?
Sep 17, 2010
I have two network interfaces in my pc eth0 and wlan0 and a virtual one br0.
router <= eth0 (0.0.0.0) => br0 (192.168.1.10) <= wlan0 (0.0.0.0) => other pc.
On startup of my pc (ubuntu 10.04 server x64), samba bind itself only to loopback network interface, as i can see when i do netstat -an , preventing me to enter in my shares from a remote pc.
Here is my configuration regarding samba network:
Code:
interfaces = 127.0.0.0/8 192.168.1.0/24
bind interfaces only = yes
and my /etc/network/interface
Code:
# The loopback network interface
auto lo
iface lo inet loopback
code....
Any idea fo speed up my bridge configuration or to force samba to wait unitl the bridge is ready?
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May 15, 2011
I recently just upgraded from humble Linux user to confused Linux admin of my own virtual Linux server. When I issue the ifconfig command I get following output.
Code:
venet0:0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet addr:1.2.3.4 P-t-P:1.2.3.4 Bcast:1.2.3.4 Mask:255.255.255.255
UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1
The WAN IP of the interface is not really 1.2.3.4 I just changed that IP for security reasons.What I am trying to figure out, is it possible to assign a private IP address to the same interface or can I only have one IP address per interface. I understand I have a mask of /32 so I am not going to be able to subnet the address to create any more addresses, so I assume I am stuck with the WAN IP (public IP) that I have, and just need to deal with it.
The reason I ask this is because I have been reading through several DNS/BIND tutorials/walk-throughs, and a lot of them specify setting up a intranet access with 192.168.1.1 address for the local DNS server, but since I am connecting to the sever via SSH I figure I do not need a private IP address.
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Mar 20, 2010
my Apache2 was running fine for a while. Bur yeserday when I tried to start it again after a couple of weeks of vacation, I got the message:
* Starting web server apache2 [Sat Mar 20 10:48:12 2010] [warn] The Alias directive in /etc/phpmyadmin/apache.conf at line 3 will probably never match because it overlaps an earlier Alias.
[code]....
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Jun 7, 2010
Every time I upgrade my system I run a post install script. This script made some harm to the network start that prevents sshd from starting, but I was unable to detect the problem. In my boot.log I found this:
[...]
Starting NetworkManager daemon: [ OK ]
Starting Avahi daemon... Jun 2 14:58:48 Antares kernel: ADDRCONF(NETDEV_UP): eth0: link is not ready
[code]...
So there is a "bind to port 22 failed" probably caused by "eth0: link is not ready", but after the sshd init script fails the eth0 is ready...
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Jun 18, 2010
I have a small cluster (OSCAR, Fedora 8) and I was able to run some application software on it. Then lightning struck very close to the building. Fortunately I had unplugged all the power cables (because the cluster has not yet been moved to where the power lines are protected), but it seems that the institution didn't have any protection on their LAN cables, and so the whole building's public network cards are damaged. A costly lesson.
Anyway, when I tried to run the application software in parallel across the cluster (using the private network which is unscathed) I get the error message given in the subject line. I contacted the application software's help department as I thought I had perhaps forgotten to set something, but according to them it is a normal network problem.
Quote:
Check the /etc/hosts file and make sure that the nodes all have a single definition and you don't have lines like
127.0.0.1 localhost normnode3
and that normnode3 has the same address both on the master and on the node. try ping normnode3 from the master and see what address comes back 64 bytes from 164.190.57.105: icmp_seq=1 ttl=64 time=0.306 ms or is it 127.0.0.1. Then do the reverse. Also double check that you can ssh between nodes without password but I would expect a different error then. The command "hostname" returns gnlserv01, which is the public NIC.
After the lightning I had trouble getting the nodes to communicate "automatically" with each other, but it can be cured by starting the xinetd service and disabling the firewall on the master node (it's not too dangerous since I don't have a public interface at present and since I'm sitting behind the institution's firewall as well.) Just by the way, I would think that ther should be a file somewhere in which I could specify those two commands to take place when the master node is switched on. Could you perhaps enlighten me as to where and how I could specify it?
I was wondering whether I would need to explicitly start a bind-type service or something like that? (Since I had to explicitly start xinetd) I'm rather clueless really. I googled around and found that there is a named service, so I tried to start it, but I don't think it's installed on the computer. Therefore, since I have managed to run the application software in parallel previously, the named service is probably not the problem. Here is a copy of how my /etc/hosts file looks like:
Code:
# Do not remove the following line, or various programs
# that require network functionality will fail.
# These entries are managed by SIS, please don't modify them.
127.0.0.1 localhost.localdomain localhost
[code]........
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Aug 13, 2009
I have got squid 3.0 stable 13 installed on a new centos5 box .I have used it on other centos5 ones and it has worked really well.It didnt give any error messages during installation on this one until i used the proxies in the browser.I have used it on other centos5 ones and it has worked really well.But with this box I am getting this error in browser-The following error was encountered while trying to retrieve the URL:Yahoo!Socket FailureThe system returned: (99) Cannot assign requested addressSquid is unable to create a TCP socket, presumably due to excessive load. Please retry your request.I have tried many options for http_port but to no avail.I have never seen this error before with and am totally clueless
Excerpts from cache.log
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2009/08/13 05:57:17| Squid Cache (Version 3.0.STABLE10): Exiting normally.
[code]....
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Apr 24, 2010
Consider the following program:
Code:
#include <stdio.h>
#include <stdint.h>
[code]...
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May 29, 2011
how to assign a address to my ethernet card all the options available
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Jun 28, 2009
Setup : internet -- VirtualBoxHost -- WIFI-switch -- clients
VirtualBoxHost hosts several Virtual Machines and has 2 interfaces. Wan-interface is not used by VirtualBoxHost, but is directly mapped to the Virtual Machine Endian Firewall.
What I want:
Access to VM's for the Wifi-clients AND access from WiFi-clients to VirtualBoxHost.
What I have tried:
- create bridge
- add LAN-interface to bridge
- create tap0
- add tap0 to bridge
Virtual Machine uses tap0
Wifi-clients are connected via LAN-interface, via bridge, to VM's. But my host-machine is not accessible from a WLAN-client and also I can not access a VirtualMachine from my host-machine. A WLAN-client can connect to a VirtualMachine without problem. I think with my bridge the local LAN and the VM's are now connected. How to put also my host-machine in the LAN? As a LAN-client.
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Jul 27, 2010
The challenge: I am trying to setup a piece of hardware that is transparent to the network that transfers ip packets between two interfaces without adding a "hop". Details The particular problem I'm having is that one interface is ppp, the other is ethernet. It is trivial to setup a bridge between two ethernet devices but I am having trouble finding anything for ppp<->ethernet.
Here, the ppp link is an internet connection, and the ethernet connection has exactly one device attached. Once the ppp link is negotiated, I want the ppp peer to think it's talking directly with the device on my ethernet interface and I want the device on my ethernet interface to think it's talking directly to the ppp peer.
Current solution: The best solution I currently have is to alter the routing table. When the ppp link is negotiated, I am given an ip address. I add a route that directs everything to that ip address to the eth0 device. I also set a default route to the ppp device. Now, anything that comes from the ethernet side gets forwarded to the ppp side, and anything directed towards my ip address gets forwarded to the eth0 side.
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Mar 1, 2011
I have a network config as follows:
X.8 <---> X.41 X.40 <--->X.16
where X.8 and X.16 are 2 separate workstations and X.40/X.41 are two interface cards in the same machine. Now I apply brctl bridging in the X.40/X.41 machine by adding both the interfaces to the bridge and thereby connecting X.8 and X.16. This part is working perfect. But there is no connectivity between X.8 and X.41 and when I try to ping at X.8 to X.41 it gives Destination Host Unreachable. Is there a way to achieve this since I require some message to be sent from X.8 to the X.40/X.41 bridge machine.
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Jan 20, 2010
I am a certified newbie into linux. I am using now ubuntu 9.04. Now here is my question. Is it possible to assign your own IP address on your ubuntu desktop, I mean a fixed IP address? Because everytime I start my computer, my internet service provider will automatically assigned a NEW IP address to my computer, but when I'm on windows the ip address is fixed.
I've installed and configured lampp and joomla. I am trying to learn how to use the joomla under ubuntu using only my computer as my local host. But when I restart my computer, the IP Address that is assigned is different to what I used when I installed joomla so I cant access my website even if I am using the same computer when I installed it. Is it possible to assign a fixed IP Address to my computer under ubuntu.
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Nov 15, 2010
I have set up a cloud (Ubuntu) environment in my test lad and it's working fine I am confused setting up the public IP in the production environment. The cloud instance will get only a Internal IP address ( Private) we cannot bind the Public Ip to the cloud instance as it uses Elastic IP, so I am confused how can I set up this if I have about 250 Public Ip to 250 cloud instance. How will I map this 250 Public IP with the 250 internal IPs is there any hardware device.
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Mar 22, 2010
I'm using Ubuntu 9.10, and I want DHCP to assign an IP address automatically. I can ping my router, and get a reply. I just have no idea how to do this.I'm trying to get my Ubuntu machine onto my Windows network.
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Jul 10, 2010
I am running Linux AS4 Update version. I have one lan card and the primary IP-Address is 192.168.0.215 & subnet is 255.255.255.0
Now I want to assign an alternative IP-Address on the same card & the IP I want to assign is 192.168.15.215.
I run the following command from root user:
Now when I ping this IP 192.168.15.215 From Windows machine then its reply me & properly reply comming from this Ip.
But when I want to access this Ip by \192.168.15.215 from run prompt then it gave me error. The specified network name is no longer available..
I already restart the machine & network service but the problem remains same.
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Apr 15, 2011
I have an Ubuntu 10.04 server/router with IPv6 internet connectivity (I have an internet routable /64 subnet). Since I have this abundance of IPv6 addresses I wanted to try and assign v6 addresses to specific users on the local system. I've been looking at ip6tables with packet mangling but I don't seem to be able to find out how to do this or if this is even possible.
Current configuration: eth0: Local network, has the /64 IPv6 public range active and the IPv4 LAN range. tun0: 6in4 tunnel with a ISP assigned public v6 address. eth1: Standard IPv4 internet connection.
All users on my system use the v6 address configured on tun0. I want to force them to use the /64 range which is configured on eth0. If I can force users to use a specific v6 address, I'll configure more then one v6 address on this interface based on the users userID on the system.
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Jun 8, 2010
i know exactly what i need to do, im just not familiar enough with command line to do it properly.i have 7 computers.the first 4 are connected to a router via wireless at one end of the house. of the last 3 only 1 will be able to access the router via wireless, so it needs to share it's one wireless connection via ethernet. this computer i'm going to call 'server'server will have two IP'swlan0 192.168.1.6 this connects to the router that has internet access.eth0 i intend to have the following settingsip:192.168.0.1sub: 255.255.0eth0 will connect to a second router, where the cat5 cable goes from the server, into the internet port of the router where i will define the router's static IP:IP: 192.168.0.100sub: 255.255.255.0gateway 192.168.0.1i have then set the router IP for LAN handling as 192.168.27.1 and all ethernet connections will have a 192.168.27.x IP.
so i need to know how to, without a gui application, use the terminal to assign server eth0 a proper IP address, and tell the server to take the connection it has and share it through eth0 to supply internet for the last 2 computers via ethernet.i had it set up in this way with a windows machine being the one that had the wifi access, but i'd rather have it setup for the ubuntu server to do this task. security is imperative for these 3 remaining machines, so just getting 2 more wifi adapters for a connection to the initial router isn't an option.the 2 that connect to server do so through SSH and though server IS connected via wireless it only makes outward connections through
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Jan 24, 2009
I noticed that my internet connection wasn't automatically brought up each time I logged into Fedora so I opened the system-config-network tool and edited my network adapter by checking the box marked "automatically start at boot/login." To my surprise, the connection went down and upon trying to click on the device to let the manager bring up the connection the greyed-out phrase "device not managed" appeared underneath the device name and wouldn't allow me to connect.
Even when I used ifconfig/dhclient to get the connection up nothing happened. I could get the router to assign an IP address through DHCP, pinged a few sites to make sure it was legit, but still couldn't use firefox to browse anything. Seems as if network manager GUI is conflicting with command line attempts to bring the network up. I'd like to permanently disable system-config-network if possible because it's acting screwy!
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Feb 22, 2010
I want to setup 1Gbps our lab network and we purchased 'Buffulo Giga layer switch ' with 24ports. Is there a way to tell DHCP to assign specific IP to a particular MAC address of a machine ? We want to use DHCP and whatever the port we use ,it should have same IP ..
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Jun 18, 2010
Showing my ignorance, but why would this work
address 172.16.1.8
netmask 255.255.254.0
network 172.16.1.0
broadcast 172.16.2.255
[Code]....
Notice the 2 in address. Seems to me it doesn't like the network and wants it to be 172.16.0.0, but I am adding to a network already configured this way.
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May 4, 2011
Im trying to achieve the multiple uplinks/provider found on LARTC.org. I have to get the IP addresses from my interfaces (EF1 and EF2) by using a script, but i dont know where to look at for the default gateway from each interface which got their ip address from my ISP.
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Nov 22, 2010
When I do ifconfig than IPv6 address is appearing on an interface. However when I run the system-config-network and select to edit same interface than it shows the normal ip4 192.168.1.x address. Why is it like that? ipv4 at one place and ipv6 at other?
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Sep 30, 2009
i used my windows box to connect to ftp(fed box) and i keep getting an error saying "The requested name is valid, but no data of the requested type was found." does anyone know why i cant connect?
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Oct 30, 2010
how to do a virtual interface under linux. I'm using for example eth0:1 so ifconfig eth0:1 192.168.0.20 netmask 255.255.255.0 for example.
However if i do eth0:1 hw ether 00:11:22:33:44:55 It changes eth0 as well. Where should i look into for creating a separate virtual interface that's simply bridged with one of the existing interfaces that has a separate ip and hw address that the os handles.
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Mar 9, 2009
Someone just erased my HWADDR line from /etc/sysconfig/network-scripts/ifcfg-eth0. How can I obtain my original MAC address?
Code:
ifconfig eth0 does not work (it shows the wrong MAC address) since the HWADDR line from the file I mentioned above was erased. Also there is no ifcfg-eth0.bak backup configuration file.
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May 18, 2011
I have dsl broadband shared through a Modem Bridge Mode forwarded to wireless router which is configured for dhcp lease to the clients(1 Desktop, 1 Laptop).
So, in My Debian Testing Desktop, I have following lines in /etc/network/interfaces :
Code:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
[Code]....
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Dec 8, 2008
I want to set up a bridge using bridge-utils within /etc/network/interfaces like is shown here in this guide: [URL] The problem is that, at the same time, I want eth0 to have a specific static IP address. Right now I have a configuration for eth0. This guide tells me that I should not configure eth0 outside of the br0 configuration.
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Jun 28, 2011
Does anybody know how to setup bridge interfaces on fedora 15 (VirtualBox4 interface and my LAN interface)?
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Oct 20, 2010
I was wondering if I could create a bridge between two wireless interfaces. So that when there is a WAN that filters MAC's, 2 different computers which aren't in the WAN white list can connect to the WAN via me. Is that possible? And how?
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Jun 13, 2010
I want to assign a static ip address, my network/interfaces files shows
Code:
auto lo
iface lo inet loopback
am I correct to add
Code:
iface eth0 inet static
address 10.42.43.10
netmask 255.255.252.0
gateway 10.42.43.1
or is there more I need?
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