I have to change my MAC address in order to get an IP lease via DHCP. But almost no installer CDs have ifconfig and dhclient.
ifconfig eth0 down
ifconfig eth0 hw ether 00:22:15:C0:27:23
ifconfig eth0 up
dhclient eth0
Is there any way to change a MAC address within Debian or Ubuntu installer CDs?
This should be simple, but the machines we ssh into don't seem to have the regular commands.Are there any other simple ways I can use to get my IP?
View 7 Replies View RelatedI would like to create several aliases to eth0, but have the addresses assigned by DHCP instead of being set to static IP's. Is this even possible? All the examples I've seen assign a static IP using the command:
ifconfig eth0:0 192.168.1.11 up
where are the interface configurations (set by ifconfig, not the static ones) stored? I'm asking because I'm trying to understand, more broadly, the order of IP address lookup. If I ping the local machine (localhost, or one of the interfaces) no messages get sent out (at least according to wireshark), so some local lookup must be taking place.
View 1 Replies View RelatedWhen doing the ifconfig command I only receive the IPV6 address. How do I specify that I need the IPV4 address???
View 3 Replies View RelatedI'm trying to grok a problem I'm having with an embedded machine. I'm pretty sure I can track down the larger problem, but I came across a usage of ifconfig that I don't understand, and I'm pretty sure this is the command that is failing.
The command is: ifconfig eth0 192.168.78.20:9134
I understand how ifconfig works. What I don't understand is the :9134. I can't see anything in the docs about what this means. I know in most contexts it's a port number, but what does it do when bringing up a network interface? Does it limit it to only using port 9134?
I am trying to find IP address. In a socket programming tutorial, I found :
Code:
$ nslookup localhost
command. It gives me a address. However, one colleague told me :
Code:
$ ifconfig
It also returns me inet_addr. But both are different. Kindly tell me the correct method to find IP address? I have also checked the /etc/hosts file but it says "localhost"
it was working but after i installed updates and rebooted it could not get a ip address seems like strange timing it still registers under ifconfig it is not even working on the live usb anyway i can test to be sure it is the chip?
View 3 Replies View RelatedI want to translate the virtual address to physical address in linux C application, how to do that?
View 1 Replies View RelatedI'm running Redhat 5 Enterprise (Nautilus 2.16.2) with Gnome and am having trouble changing the default application for PDFs. No matter what I do, it seems to always come up as evince.
First I tried browsing to a PDF file using Nautilus, right clicking on a PDF file, selecting properties, open with, and then changing the radio button. However, the radio button is selecting "Document Viewer" and clicking on the other buttons doesn't do anything. The button is stuck on "Document Viewer" (I'd like to use Adobe Acrobat).
I thought I'd do it manually then. Running `gnomevfs-info file.pdf" shows code...
So now xdg-mime and gnomevfs-info are showing different default applications for this file type. I've tried updating the mime database using update-mime-database ~/.local/share/mime as well as updating my desktop database using update-desktop-database ~/.local/share but nothing seems to be working.
Changing a default application really shouldn't be this difficult. What should I try next to change my default application?
, however, shows something different
My .local/share/applications/defaults.list file, however, shows the following:
application/pdf=AdobeReader.desktop
We're using mutt to send out a daily email through cron. The only problem is that half the people aren't getting it, because its getting rejected as coming from an invalid address. Right now its sending out as username@localhost.localdomain.
How can I change this? I found the sendmail.cf, which I believe previous people have been editing directly, which from what I read isn't the best way to configure sendmail.
I am using malloc and frees a lot in my program. It shows its allocated but when i remove it doesnt show as the memory is removed(I am using the top command to view VIRT memory usage). If this continously grows what would happen to my program (Will it go out of memory?)
View 4 Replies View RelatedOS: CentOS 5.3 Enterprise Server
Red Hat Nash Version 5.1.19.6
I need to find a command-line program to randomly change my MAC address. I know on Ubuntu there is a program called 'macchanger'. And on Windows another one called 'macshift'. I just can't find one for CentOS 5.3 Enterprise Edition.
I installed the webilder application to automatically change the wallpaper, preferences you've specified the directory where the images but I can not change the background. Does anyone know why not change?
View 5 Replies View RelatedI am running centos 4.5 Kernel. 2.6.18
My ifconfig is broken. and i dont know how to fix it.
I go into /sbin and i see the file but when i try and execute the command is says bash: ifconfig: command not found.
The permissions on the file are as follows:
I'm a relatively inexperienced with Linux, coming from a Windows background, and I struggling to solve a troublesome issue attempting to set a static ip address to a Live Debian USB Key. I know it is possible to utilise the 'ifconfig' function to set a static ip address and use 'route' to set the gateway, e.g.
ifconfig eth0 10.0.0.40 up
route add default gw 10.0.0.130 eth0
..however in both cases I need to explicitly set the 'eth0' to point at the appropriate adapter. However, this is where my problem is...
I'm creating a persistent USB key using the Debian Live CD, I'm going to create an image and then duplicate that image to a load of other USB keys. Again, not a problem as such but there are cases where I need to specify a static IP address and gateway rather than using DCHP.
And here's where problem raises its head.
Because I've created the key on another machine it has allocated 'eth0' to a specific MAC Address (assigned in /etc/udev/70-persistent-net.rules) but when I place it into machine with a different network adapter it is assigning to 'eth1' (and this increments up).
a) call 'ifconfig' and 'route' without having to identify the adapter or
b) change the script that is creating '/etc/udev/70-persistent-net.rules' so it overwrites the 'eth0' entry with the only applicavle network adapter for the current hardware.
Following is my ifconfig output code...
I want to do some thing grep that I see the IP corresponding to each LAN card?
Is that possible?
Is there an application that will take the data from an Open Office spread sheet and locate and mark each address on a map?I've got a long list that I need to sort and locate by zip codes.
View 9 Replies View RelatedWhen i type 'ifconfig eth0 192.168.25.1 255.255.255.0' the outcome is 'SIOCSIFADDR : invalid argument', but when i check the ip address using /sbin/ifconfig i see the ip address is updated to 192.168.25.1 and is up. When i restart the linux box,the /sbin/ifconfig is reset to 192.168.100.1 .what should i do so that the linux box /sbin/ifconfig should not change when am rebooting.
View 12 Replies View RelatedI am usually sshed into different boxes and i forgot what ip I am logged into sometimes. Is there a command I can type to give me the ip on the box I am on.
cat /etc/*release
CentOS release 5 (Final)
this failed
ifconfig | more
bash: ifconfig: command not found
I'm using crunchbang (jaunty) on an old desktop at home that I intend to use as an ssh server. I have everything set up and ready to go, I can ssh just fine if I'm on the same network (on my laptop) as the server, but when I tried remote access, I realized that I had the general IP (192.168.1.100) and that I needed to change the IP address to ssh remotely.I have tried to manually change the /etc/network/interfaces file but have only gotten confused.The question is what do I change and where in order to get a unique IP address for my ssh server to ensure a successful remote connection?
View 2 Replies View RelatedI use GNU MAC Changer. It changes my local network connection mac adress properly. But it does not changes my wireles mac adres. I try it with sudo ofcourse the error which i get is : "ERROR: Can't change MAC: interface up or not permission: Too many open files in system". I disable the wireles connection and then try to change the mac but i get the same error. I try these commands :
# ifconfig eth0 down
# ifconfig eth0 hw ether 00:80:48:BA:d1:30
# ifconfig eth0 up
[code]....
HOW DO I CHANGE MY IP ADDRESS ? I read the how tos and did something in the terminal..but I am not sure..I am stupid and I dont know what I am doing.
View 9 Replies View Relatedwhat is Production IP address and Management IP address in Linux servers? What is the significance of these two? When to use what?
View 3 Replies View RelatedHow can I get the physical address corresponding to a virtual address in linux by using /proc file system
View 1 Replies View RelatedSome people may need to change the mac address of their ethernet network cards. This can be easily done with fedora with command line. Just follow the steps below:
1. Log as root on a textual console (ctrl+F2) or through "su -" command in your console
2. Print your network configuration with ifconfig
[root@localhost ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:23:8B:6A:7E:9E
inet addr:10.1.128.244 Bcast:10.1.255.255 Mask:255.255.0.0
inet6 addr: fe80::218:8bff:fedb:7e9e/64 Scope:Link
[code].....
Here, eth0 is the ethernet interface of your system. The mac address is put in red.
3. Change your mac address using the following syntax
ifconfig eth0 hw ether 00:18:8BA:7E:90
The new value (in green) must be hexadecimal
4. if you have a dhcp server that distributes the adresses automatically, then request a new adress for your eth0 interface
[root@localhost ~]# dhclient eth0
5. Now, your interface is up and have a new mac and IP addresses. This feature may be useful if the network administrator ban you according to the mac adress, for example .........
[URL]
I'm using fedora 11-KDE version but I'm not change my dns adress.Can you write here it step step =) Only I want use opendns fedora 11-kde =)
View 4 Replies View RelatedI have a dual-boot laptop where both are configured as clients for bacula (backup software). Since it is a laptop and it gets used outside the network where the backup is done, I can't just assign a static IP and be done; it really needs to accept an address via DHCP.
Changing the MAC address is easy:
Code:
But if you do this manually, then you'll need to restart your connection. I don't want to do that, I want the laptop to just come up with the correct address in the first place because one day I will forget to change it and the backup system will be very confused (and I will be very sad when I find myself needing that backup).
The solution is to run an init script prior to starting the network. Below is the script I am using, with someone marginal comments. It is based on the network script in /etc/rc.d/init.d, heavily edited. You will need to add one parameter to your ifcfg-ethX configuration file to set the desired MAC address. That parameter MACADDR does not seem to be used by any of the init scripts. You will find it in some of the scripts in network-scripts, but it is not used as an input parameter, but rather set by querying the NIC, thus this use does not conflict.
Here's the script:
Code:
I've just reinstalled F14 with KDE rather than Gnome and I'm finding that I'm unable to assign a static IP address to my wired connection.
KDE automatically connects via DHCP, but when I go into KDE's network manager, the eth0 connection isn't listed. In fact, no wired connection is listed. If I manually add one with the correct settings (including a static IP), it switches back to DHCP upon rebooting.
How can I get around this? Should I install the networkmanager-gnome package?
I have setup a machine with Ubuntu 10.04 server and i have installed a KNC card for Streaming the channels. Everything is good so far and here is the real deal .. i wanna change the MAC address of the KNC card to try different things. I know how to change the MAC address of the LAN card but not sure about the KNC card. I tried few things by installing macchanger.. but didn't work out. Can any one tell me whether its possible to change the MAC of the KNC card and other tricks.Here is a little info:-
[ 11.344208] saa7146: register extension 'budget_av'.
[ 11.344704] budget_av 0000:04:01.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
[ 11.344739] IRQ 22/: IRQF_DISABLED is not guaranteed on shared IRQs
[code]...