Fedora Networking :: 10 DNS Information Gets Lost After Changing IP Address To Static
Feb 21, 2009
I am using Fedora 10 and when I first installed my machine, I had a DHCP assigned address to my network card. Later on I decided that I wanted to give my machine more of a server role, so I switched to static IP using the system-config-network utility. What happened after that was that I did change the IP address and routing information, but DNS information gets lost at every reboot, so I need to type it back again.
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Oct 29, 2009
I cannot get a static IP to work on Fedora 11. Using Network Manager, I set the IP to 192.168.1.130, the subnet mask to 255.255.255.0 and the gateway to 192.168.1.0 but it doesn't work. I also tried 192.168.1.1 for the gateway, which is what I used in FC7 but still no luck. I verified that these are the settings that I used in FC7, I don't remember ever having a problem before with this.I do remember someone telling me not to use Network Manager in conjunction with Network Configuration... does that make sense? That was for FC9 on my laptop and it was for the wireless so perhaps that doesn't apply here. I did try unchecking the box for Network Manager and using strictly Network Configuration but it still didn't work.
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Feb 17, 2009
I am a windows user with no linux experience prior to Friday. Im setting up a music server (SqueezeCenter) running Fedora 10.
With the help of posts of this site Ive made good progress with complicated stuffnamely getting Samba and VNC working. My Fedora machine and my windows machines now see each others shared files, and I can control my Fedora machine from my windows machine. (The Fedora machine will ultimately be headless.)
But Im having trouble with a seemingly simple issue setting up my Fedora box with a static IP address. With DHCP enabled on my network Ethernet adapter, all works fine. I then used the System>Administration>Network menu to disable DHCP and to assign the same IP address that DHCP chose. When I do this, two cases need to be distinguished:
1. If I keep the box checked for Controlled by Network Manager, the Network Manager Applet reports a network connection, I nevertheless cannot access the internet, but my Fedora machine is able to communicate with my Squeezebox music player (connected to my network via my DSL modem Ethernet connections, and with a fixed IP address). 2. If I uncheck the box Controlled by Network Manger, then the Network Manager Applet reports no network connection and my Fedora machine is not able to communicate with my Squeezebox music player (and I of course have no internet connectivity).
Ive seen references on other posts suggesting that the Network Manager service be disabled. But I see no way to manually configure the network.
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May 1, 2010
I want to force my IP address to 192.169.0.99but my router always allocates me 192.168.0.2I have attached a screen showing my settings.I'm using the broadcom wireless card to connect to the router?Any thoughts, I have tried to change the setting with and without the network manager.
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Jan 2, 2011
My DHCP setting is disabled in fedora 12 . Previously i was using static IP address. I Want DHCP setting enable, any idea.
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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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Apr 26, 2010
I got this message on Friday from just one domain. uote:mailsrv.forthnet.gr #<mailsrv.forthnet.gr #5.5.0 smtp; 554 5.5.0 Your message was considered to be spam by the FORTHnet Antispamming Policy and was not delivered to the recipient. The following spam tests returned positive for this message:FORGED_RCVD_HELO,RCVD_IN_BRBL. For further information visitWe are not a spamming community but it seems we have a statice IP address that has a Reverse lookup to "myipaddress.static.lyse.net" and not my email domain. Would setting a cname mail.mydomain.no -> myipaddress.static.lyse.net cure this problem or are there more tricks to be performedOnce I have cured the FORGED_RCVD_HELO I can move to getting the IP removed from BARACUDA.
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Mar 1, 2011
in our server, Fedora 10 64 bit in this,IP Address is automatically changing Actually IP Address is 192.168.1.50 it changing frequently.if i try to edit that to normal it is not showing options. net mask is also is changing from 255.255.255.0 to 24 After reboot the system ,through LAN it is accessible .But not through the network.
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Jun 24, 2010
I am doing a test on MAC learning and for that ,I need to change my MAC address of linux machine while the interface is UP. To be more clear, consider eth1 in a fedora core 8 machine. And while the interface is UP. I am running a script which changes the MAC address from 10:1:1:1:1:1 to 50:50:50:50:50:50 (i.e 50 times MAC address is changed) . When I try to change the MAC address when the interface it UP, it gives me the following error :
siocsifhwaddr : device or resource busy
I know the way of changing the MAC address by bringing down the interface but I need to know if this can be done while the interface is UP.
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Mar 15, 2010
i have a ubuntu 9.10 server on a wlan behind a debian server/router/firewall.i have had dhcp assigning the ip address to the server and then accessing the server through a port forward that has been working okay.i want to assign a static ip address to the server so that i wont have to worry about checking that as i reboot the system and so forth.
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Mar 21, 2011
I am trying to set up a static ip address. I am using the visual interface. The problem may be that I don't know what they mean by "DNS servers" the linksys says it is 0.0.0.0 but entering that doesn't help. It says "connected" on the "notification area" icon, but I have no internet. I have rebooted the computer and the router.I deleted Auto eth0 and when I added a new connection it is now "Wired connection 1". If I change it to "automatic DHCP" instead of manual, it works fine.What am I missing, I have easily been able to set static IPs on WinXP machines, I would think Ubuntu would be easier.
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Apr 11, 2010
I have followed some instructions to change to a static ip address and have now lost my connection to my router. The mistake I made was not copying the original "interfaces" file before making changes.The file originally had: auto wlan0 iface wlan0 inet (something - I thought it was loopback but didn't work when I added it).
The instruction told me to put:
auto eth0
iface eth0 inet static
address 192.168.1.100
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1
Which I did, using my own ip numbers, except for "broadcast". I didn't add that in because I didn't have a clue what to put there. When it didn't work, I tried putting it back to what I originally had except I can't rememebr that last bit. I added dhcp instead of what I thought it was but this didn't work either.
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Aug 2, 2011
I'm using a 3G+ stick, by Sfr in France.
Is it possible to get a static local ip address ?
I wasn't able to find the answer with google.
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Jan 16, 2010
Can't change from dhcp to static ip address.I've installed Oracle's version of Linux Redhat 5, but I'm having no success changing from dhcp to a static IP address. My machine is plugged directly into a Belkin router which has the IP address: 192.168.2.1.If I use the gui: /usr/bin/system-config-network and set the network device to dhcp,it works fine. But if I set the IP address manually, I get no internet traffic, and if I ping an internet website, "network unreachable".The installation instructions for Oracle say that they want a full domainname. I've tried gateway.2wire.net. This worked in the last place I did a successful installation.It was the address of my ATT router. If I plunked that into a browser, I got the router configuration.
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May 19, 2009
I am running 2.6.27.21:170.256.fc10.i686 on my laptop.
I am trying to connect to a network at a university in China right now and I cannot figure out how to connect.
IP: 192.168.213.179
subnet mask: 255.255.255.0
default gateway: 192.168.213.1
DNS: 202.202.96.33
DNS: 61.128.128.74
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Apr 18, 2010
My new line provider/ISP won't give me a static IP address - it's DHCP or nothing. Is there some trick I can use to allow myself to host a web page? I was thinking of getting a static address elsewhere, like at my sometime place of employment, and redirecting, but it just moves the problem downstream.Realistically, assume I leave my computer on and hardly ever reboot (CentOS is pretty stable), then will I typically keepthe same address for weeks or months at a time? If so, I could live with logging in to my registrar a few times a year to change the address, as bizarre as that would be
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Mar 31, 2010
when I do "route -n", I got:
Code:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
I need to change the static configuration, like I 169.254.0.0, I don't know how it got there also I want to delete 192.168.1.1 from a static gateway. How can I do this?
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Jul 31, 2010
I am trying to find out if it is possible for me to have a static ip address with my 3G usb modem ? I am using gnome network manager in Ubuntu 10.04 but it there is no option for me there for a static IPV4 address. I know with a wireless or ethernet connection you would modify /et/dhcp3/dhclient.conf and/or /etc/network/interfaces. I don't think those two would do for a PPP connection. When I go to /etc/ppp/ I see no .conf file that I could modify.
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Feb 4, 2010
Recently, I've set up Ubuntu Server 9.10 x86_64 (no GUI). I have two NIC cards in this machine. One is a wireless card that I would like to set a static IP address to. The other is an integrated NIC. Everything works just fine when I have everything set up under DHCP. I can ping both NIC cards with no issues. But as soon as I change over to a static setting, things work unexpectedly...
Things to keep in mind:
-All machines are running under the same subnet
-All machines are connected to a wireless router (freshly flashed with the latest firmware)
-This is a fresh install of Ubuntu Server 9.10 x86_64
--Static IP address on the WIRED (eth0) NIC works great. No issues. Can ping from my wireless laptop, and can ping from the machine to the outside world (ping google.com) as well as the gateway itself with excellent response times.
If I then turn on the WIRESLESS (wlan0) NIC after setting up a static address for it in /etc/network/interfaces, then turning the wlan0 on by issuing "sudo ifconfig wlan0 up", wlan0 shows up, but does not have an IP address associated with it, even though I set it up as static. I also cannot ping wlan0 from my laptop. I assumed that was because I needed to restart the networking service. So after issuing "sudo /etc/init.d/networking restart", I am able to ping wlan0 from my laptop with no issues.
Here is where things get strange. Lets say that I physically pull the plug on eth0. After dong this, wlan0 stops responding to the ping request that was initiated by my laptop at the same exact time. If I plug the cable back in, both eth0 and wlan0 begin to respond once again. But soon after I try to SSH to wlan0, wlan0 decides that it no longer wants to respond to the ping. I should note that it does ask me for a username and a password, but after I entered my password, the ping stops responding. Why should the wlan0 be affected in any way if something happens to eth0?
This all started when I set the server up with only a static configuration on wlan0. It appeared to be working well. I was able to ping the machine from my laptop as well as SSH into the machine. I went to bed and the next morning, I was no longer able to ping the machine. I let the ping run for a small amount of time with a few responses here and there. Then after a little more time of letting ping run, it tends to respond. Almost like I bothered it enough to decide that it was appropriate to start working again.
Ideally, I would like to have ONLY a wireless connection. But if I need to have eth0 up, it would be great to have option work as well. Bottom line is that my wireless is flukey. And I would like to find out why.
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Mar 18, 2010
How can I give my VirtualBox OSE a static IP address. My virtualbox is running Windows Xp 32-bit, and I am wanting to give it a static IP Address.
For example, my ubuntu pc has the ip address, 192.168.2.101 I want my VirtualBox to have the ip address, 192.168.2.201
I also want my Virtualbox to have port 95 open.
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Nov 14, 2010
Does anyone know an easy way to do this? I can't seem to figure it out.
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Jul 6, 2010
I'm running Ubuntu 10.04 and my setup is as follows:
As you can see, I am directly connected to router 192.168.25.1, and so my ip address is 192.168.25.101. I want my ip address to be 192.168.13.101, and make router 192.168.13.1 my gateway router. Is this possible under the current physical layout (I do not want to have to connect directly into 192.168.13.1, but keep my computer where it is at)?
When I run tracepath, it shows 192.168.13.1 is one hop away.
What I've tried:
The problem is under this manual setup, I cannot ping 192.168.13.1 and running command netstat -rn returns the following:
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Nov 10, 2010
I have an Ubuntu Server 10.04.1 that I have given a static IP address. Every six hours or so I will lose connectivity to it and when I type ifconfig to look at the network information, it has been given an address via dhcp. If I run the /etc/init.d/networking restart command the IP address goes back to my static address and things are fine for another 6 hours or so. Here is what is in my interfaces file:
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 10.60.82.15
netmask 255.255.0.0
broadcast 10.60.255.255
gateway 10.60.254.254
This machine is also a DHCP server and I checked to make sure there are no other DHCP servers on my network. Right now my fix is to have a Cron job running that runs the reset command every 5 hours, but I would like to find a more permanent solution.
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Jan 5, 2011
I have been playing with Linux consistently for a couple of months now. I've been a Windows sys. admin for most of my career, so Linux is pretty strange for me. I started off with computers way back with the TRS-80 and then eventually moved to DOS systems. So the command line interface (CLI) of Linux was not completely alien to me, yet my lack of knowledge on the syntax and commands is holding me back. I have come a long way.
Recently I needed to play around with some DNS settings and one of the commands I used frequently in Windows, IPCONFIG /ALL, doesn't have a direct relative that displayed the same information. If you run ifconfig, it doesn't return the DNS servers you are currently using. You have to run a separate command to retrieve that information.
What I have done is created a super simple script that displays the network information for my primary LAN adapter, which is ETH0 in my case. After that, it shows the domain and name server information. Then it pauses for 20 seconds before closing the terminal window.
Here are the contents of the script file:
ifconfig -a eth0
cat /etc/resolv.conf
sleep 20
I simply right-clicked the Linux desktop, choose Create Document, Empty File. I named it something like Network Info. Then I opened it and put this information in it, saved it, and closed it. I renamed the file and added a .sh extension to the end which makes it into a script file. Next, right-click the script and go to properties. In the Permissions tab, check the box next to Execute: Allow executing file as a program. Then click close.
To run the script, just double-click the icon and then click Run In Terminal at the prompt. The terminal window opens, displays the information, and exits after 20 seconds. If you need it longer than that or need a different interface (such as wlan0 for your wireless), you can change or even add that in.
This was all done in Ubuntu 10.10. I know it is very simple and very straight forward and welcome thoughts and feedback about simpler ways to do this. For me, the old-school Windows admin, it's a baby step in the right direction. I am really enjoying learning the Linux OS.
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Apr 3, 2011
I am trying to establish a static IP address using the instructions I found at:I cannot find this file in Fedora 14:Code:/etc/sysconfig/network-scripts/ifcfg-Auto_eth0
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Apr 3, 2011
In Windows Server 2008, I can configure a static IP address with the following syntax:Code:
netsh interface ipv4 set address="Local Area Connection" source=stati.10.10.11 55.255.255.0 10.10.10.1Besides editing a text file, is there a syntax I can run from terminal?
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Mar 15, 2010
i have followed multiple guides to make my home server use a static ip address. no matter what i do it always reverts back to its dhcp address after about 2 minutes. how do i get the static ip address to stick, or be permanant.
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May 23, 2010
what are use cases for static ip address for clients or servers.
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Jan 11, 2011
#1: Where can I assign a static IP address on my lubuntu box?
#2: Also, is it possible to see the lubuntu box from a Windows machine? If so, how does that work?
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Aug 12, 2010
Am attempting to set a static IP address on a server (to be used with Mythtv) and is running mythbuntu 10.04 (apologies if this is the wrong place to post this). I can set a static IP address that is in the range of 192.168.1.x on other machines on the network but when I try with the server it is not able to connect to the network. When using the DHCP rather than manually assigning the address it is assigned an address with the 10.0.0.x range. Why is it doing this I have never have this problem on other ubuntu boxes (and this one prior to a format of the OS).
The router/gateway is 192.168.1.1 I did have a DHCP server on the mythbox before formatting it and I was able to assign a static 192.168 address and retain internet connectivity. But I have re-enabled the DHCP server on my router since formatting the box.
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