Ubuntu Networking :: DNS IP Address Configuration

Jan 30, 2010

I am using Ubuntu 9.04 (x86-64). My internet connection is not working, i've tried to fix it and the issue seems to be with DNS. I can ping google's IP, but i can ping it URL.I have used the GUI network manager(from Gnome's equivalent of the Windows system tray), to add the DNS IP addresses to the IPv4 wired connection - that hasn't helped.

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Ubuntu Networking :: Wired Network Configuration - Server Can't Be Found At The Given Address In Firefox

Sep 11, 2010

My father has configured his network and the computer has connected to the wired network. The problem is firefox says the server cant be found at the given address. The wired router says its connected to the network and yet firefox doesn't see the router admin page or network.

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Ubuntu Networking :: Port Forwarding From Public Address To Private Address?

Feb 24, 2010

Currently my OS is Ubuntu 9.04 Jaunty Jackalope Desktop OS and my web server is Apache2. I have a public address 60.x.y.z and my pc local address is 10.x.y.z. I have a web app in my Apache2 which currently run in localhost(10.x.y.z).

I would like to enable the web app so that it could be browse from outside. I know there maybe some port forwarding process and some commands involved in order to do that. But I have no idea on the steps to do that.

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Ubuntu Networking :: Static IP Address And The Install Configures For A DHCP Configured Address - Network Not Starting

Dec 16, 2010

Version 10.04 LTS. Installed desktop version and network worked but I needed a static IP address and the install configures for a DHCP configured address. I tried changing to static address using the System->Preferences->Network Connections application but was unable to get the system to come up with the network up.

So I manually modified the /etc/network/interfaces and the /etc/resolv.conf files. I restart the system but when I do an ifconfig, I don't see a configured IP address on eth0 (only the loopback address). If I run /sbin/ifup eth0 everything then works fine and ifconfig shows the correct address bound to eth0.

My files are as follows:

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Ubuntu Networking :: IP Address Set To Manual But Still Queries DHCP For Address

Mar 12, 2011

I'm running Ubuntu 10.10 and I'm having problems trying to assign it a static IP address. No matter what I put in the Preferences->Networking area (identifying the interface as Manual)... it still will query DHCP for an address if I run the dhclient command. I'm using to using ubuntu server where I just set the IP in the interfaces config file.

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Networking :: Error Str2addr:Address 35 Outside Range Of Address Field Length 1?

May 12, 2011

I am working on implementing a protocol on NS2.34 .I really need help to solve this problem . Actually , I don't now whether the problem is generated by the tcl code or the c++ code when I run the simulation, I get this result :

Code:
num_nodes is set 64
INITIALIZE THE LIST xListHead
34
45
channel.cc:sendUp - Calc highestAntennaZ_ and distCST_
highestAntennaZ_ = 1.5, distCST_ = 550.0
SORTING LISTS ...DONE!
code....

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Networking :: Program To Assign Globa LIPv6 Address And Bind() To The Previously Assigned Address?

Apr 24, 2010

Consider the following program:

Code:
#include <stdio.h>
#include <stdint.h>

[code]...

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Networking :: Dynamic IP Address With PTR Record Versus Fixed IP Address Without?

May 7, 2010

I am running my own Postfix mail server. Some time ago I noticed that most email was rejected because of the server's dynamic IP address. So I got a fixed IP address. However then I noticed that some mails got rejected due to failing the reverse DNS check. So my ISP told me to get a range of IP addresses and they could then create a PTR record for one of those addresses. That is now running but it turns out that the IP address used for the PTR record is a ... dynamic IP address. So Spamhaus PBL rejects my emails again.

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Ubuntu Networking :: Obtaining Ip Address From Mac Address?

Oct 6, 2010

In my job I use some ethernet embedded devices. They take an ip address from dhcp server or auto ip. I only know mac address.How can I obtain ip from mac address? In other words I need a rarp packet generator.

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Networking :: Bind External IP Address To Internal IP Address?

Jun 7, 2009

I have a few external IP's assigned to me by my ISP. I have IPcop as my router/firewall. I am wondering how to bind 1 of my external ip's to my internal ip address. So I do not have to port forward, etc. For Example, 77.77.77.77 to 192.168.1.123 and on the server it see's the external IP address.

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Networking :: (98)Address Already In Use: Make_sock: Could Not Bind To Address [::]:443?

Oct 28, 2010

I dont know for what reason, since 2 days, I started having this message whenever I try to start httpd.I commented "Listen 443", restarted httpd started correctly. I needed to comment "listen 443" in order to be able to start httpdWhat is strange is when I do

Code:
telnet mylinux 443
it responds

[code]...

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Networking :: Assign A Address To Ethernet Address?

May 29, 2011

how to assign a address to my ethernet card all the options available

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Ubuntu :: Apache Configuration To Run With IP Address?

Feb 13, 2011

I have installed and configured Apache (Apache2). And I have website running so I wanted to configure it to run with an IP Address And I Searched Google and I can't find it.

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Debian Configuration :: No Ip Address Given At Boot

Apr 11, 2011

I installed squeeze on virtualbox on arch linux.After squeeze is booted up, ifconfig says no ip address is given to eth0.I tried ifdown/up eth0, then an ip address was properly given.Does anyone have the same problem or know how to solve this?The network of virtualbox is set to bridged adapter.The host os has only eth0, no br0 and wiredly connected to a wifi router which has the dhcpd.

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Networking :: Renew Ip-address With Mac-address?

Jan 18, 2010

I have a dedicated control computer that can only be accessed with web-browser (with its ip-address). My DHCP-server gives a static ip-address to the control computer (base on its mac-address). Somehow and after some time the control computer looses its ip-address (can't ping to it any more) ... and then I have to reset the control computer to get it to pick up the ip-address ... this is not a good solution since the control computer is not nearby. is there a way to force the control computer to renew its ip-address based on its mac-address

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Networking :: Trace An IP Address To A MAC Address?

Apr 18, 2011

My security software has picked up multiple port scanning detections on my router/network and only the IP addresses are available. Is it possible to find out what the remote mac address is to see if the IP source has been spoofed? I've got a couple of different IP sources which were found scanning my ports.

I don't know if my IP and the remote IP address are on the same network or subnet for that matter which is the reason for my wanting to know what the mac address is to find out if its coming from the same remote machine.

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Debian Configuration :: Raspbian On Raspberry Pi Always Get A Invalid IP Address

Jan 7, 2016

I got the Raspberry pi 2 Model B. I flashed my sdcard with raspberian Jessie kernel 4.1 (latest).Also tried wheezy and NOOBS, same behavior.With a ethernet cable (known working), I tried connecting my Pi to my home router, and I got a invalid ip address 169.254.xxx.xxx, and therefore no linkup. I got the same results by connecting my Pi directly to my modem (wired).

I know that /etc/dhcpd.conf is the new /etc/network/interfaces for network configurations.So I tried the debug option, and I noticed that the router doesn't seems to response to the DISCOVER command from the Pi (dhcp v4 protocol).Here's a dump of by /var/log/syslog | grep dhcp

Code: Select allDec 28 12:00:02 raspberrypi systemd[1]: Starting dhcpcd on all interfaces...
Dec 28 12:00:02 raspberrypi dhcpcd[349]: version 6.7.1 starting
Dec 28 12:00:02 raspberrypi dhcpcd[349]: udev: starting
Dec 28 12:00:02 raspberrypi dhcpcd[349]: dev: loaded udev
Dec 28 12:00:02 raspberrypi dhcpcd[349]: eth0: disabling kernel IPv6 RA support

[code]...

ANd if i use raspbian flesh out of installation, I get this when i run

dhcpcd -k
dhcpcd eth0
eth0: probing for an IPv4ALL address
eth0: using IPv4ALL address 169.154.202.224

Seems like my home router TP-link (default setup) doesn't send a response to the dhcp request.

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Debian Configuration :: Determine IP Address In Post-up Command?

Mar 22, 2010

Is there any elegant (and preferably uniform) way to determine IP address assigned to a DHCP/PPP interface inside a post-up command?

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Debian Configuration :: UK Lenny Repositories Address Needed?

May 13, 2010

My sources list for updates is a bit wonky as in needs the correct uk repositories listed, for Lenny main, could someone point me to where I can find the uk repositories so I can enter then in the software sources option from the menu?

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Debian Configuration :: Unable To Get Ip Address For Wlan0 During Init?

Sep 23, 2010

This is embarrassing. I can't get a wireless address from my router with dhclient. The distribution is sid/lxde/liquorix kernel with no network manager on /dev/sdb1.

root@sid:/home/jheaton5# dhclient -4 -v wlan0
Internet Systems Consortium DHCP Client 4.1.1-P1
Copyright 2004-2010 Internet Systems Consortium.

[code]....

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Debian Configuration :: Use Specific Address For Dhcp Server?

Apr 27, 2011

I'm running gnome desktop on squeeze system. When I boot my system seems to be using my internet modem as its dhcp server. The rest of the machines on my lan are correctly using my router for that purpose. As a result, what happens then is that my debian machine frequently gets a duplicate ip address assigned to it. I would like to specify to my debian computer that I want it to use the specific fixed ip address of my router for dhcp purposes.

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Debian Configuration :: Address Prior To Building The Latest Kernel (2.6.33.4)?

May 13, 2010

Got this while installing the kernel development tools on my Squeeze system being used as a router/firewall. Setting up update-inetd (4.36) ... Setting up cvs (1:1.12.13-12) ... Ignoring install-info called from maintainer script The package cvs should be rebuilt with new debhelper to get trigger support Ignoring install-info called from maintainer script The package cvs should be rebuilt with new debhelper to get trigger support Setting up autopoint (0.17-11) ...

Is that an issue that I need to address prior to building the latest kernel (2.6.33.4)?

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Debian Configuration :: Ddclient WARNING Unable To Determine IP Address?

Jan 16, 2011

i have the basic knowledge of networking. a week ago i installed debian Lenny version on an old pentium 3. in addition i installed a ddclient configured it according to many tutorials.i searched google a few days but didnt find my case. i ran the folowing command :

ddclient -daemon=0 -debug -verbose -noquiet
output:
debian:~# ddclient -daemon=0 -debug -verbose -noquiet
=== opt ====
opt{cache} : <undefined>

[Code]...

i installed ddclient before installing apache. the 10.0.0.10 address is the server address in my d link router behind NAT.

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Debian Configuration :: DHCP3 Server Giving Wrong Ip Address?

May 20, 2011

Hey guys. I have a client computer PXE booting from my host computer and it is supposed to give the client the ip address 172.16.0.100 however instead it gives it the ip address 172.16.0.208.

I have this set up working with two other computers and there is no noticeable difference other than mac addresses for the network card.

Here is an extract from my '/etc/dhcp3/dhcpd.conf' file...

ddns-update-style-none;
option domain-name "example.org";
default-lease-time 600;
max-lease-time 7200;

[Code]....

I have quadruple checked the mac address of the client and it is definitely "00:07:E9:32:16:81" so why is it not giving it the IP address that I have specified?

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Programming :: Macro To Get Base Address Register In Configuration Space?

Nov 21, 2010

I am trying to understand working of pci_resource_start function So I browsed code via cscope and searched for string pci_resource_start and got following in pci.h

Code:

#define pci_resource_start(dev, bar) ((dev)->resource[(bar)].start)

I am not able to understand how does this above macro works. How does it above macro gets appropriate base address register in configuration space?

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Debian Configuration :: Setup Multiple Mac Address Over Single Ethernet Interface?

Jul 23, 2015

I want to configure multiple virtual ethernet interfaces over a single physical ethernet interface (eth0) and for each virtual interface the MAC address must be unique and the IP address must be Static.Finally all the virtual interfaces must be able to communicate both internally and externally and the traffic should be captured using wireshark.

I need to have such kind of setup to communicate devices individually using one physical ethernet device.

Because I was fiddling with few kernel modules like MACVLAN and MACVTAP and successfully enabled those modules and rebuild kernel. Using macvlan and macvtap I can configure virtual interfaces with unique mac address and static IPs but while capturing packets using wireshark interfaces behave weirdly.

For example say on HOST machine I have 1 physical interface and created 3 virtual interfaces as shown below.

Interfaces :

eth0 (physical ethernet interface)
IP: 192.168.A.A
MAC: aa:aa:aa:aa:aa:aa

[Code] ....

First from above interfaces I started pinging eth0 internally from host machine in which it worked as usually.

Second I did same externally from other machine which is connected to the same network of Host machine, and this did work as usually.

Third I pinged first virtual interface veth0 both internally and externally and this also works and after that I did check source and destination MAC address using wireshark tool-where both showed up there respective MAC address.

Now triggers the issue, where I pinged second virtual interface same like I did for first one, but this time ping was success and where as in wireshark tool the MAC address for veth0 is picked by veth1. This is where I got stuck and this issue happened for all the remaining virtual interfaces.

I couldn't see any virtual interface showing their respective MAC address, as of the remaining except the first virtual interface has been picking the first veth0 mac address.

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Debian Configuration :: WiFi Connection Stuck At (Setting Network Address)

Oct 9, 2015

I have Debian 8.2 with KDE 4.14 and everything runs perfect, except for the internet connection. This problem happens randomly when I turn on my machine. Sometimes when the desktop loads, the connection is already settled.

But sometimes when the desktop loads, the wifi icon is still loading and keeps stuck at "setting network address". Since this problem happens randomly I really don't know what is happening here. My wifi chip is this:

Code: Select all01:00.0 Network controller: Intel Corporation Centrino Wireless-N 130 (rev 34)

This is the problem:

I installed Debian with non-free firmware because of this chip.

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Server :: Squid Proxy Access List Configuration On MAC Address Basis?

Aug 24, 2010

I am using Redhat 5.3 , I configured well access list using IP address, but my customer want to access list on MAC address basis.

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Debian Configuration :: Apache Config - Restrict The Access To Local Web Server By IP Address?

Jul 29, 2010

I want to restrict the access to my local web server by IP address. Im in a LAN (192.168.200.xx) so i have this:

[code]....

But when i try to connect from 192.168.200.4 it says i don't have permission to access

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Networking :: Get The Mac Address From Given Ip Address?

Oct 1, 2010

how to get the mac address from given ip address

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