Ubuntu Networking :: Connection To Network - Terminal: Ifup Eth0 Don't Fix Until Next Reboot
Mar 3, 2010
I have my ubuntu box hard wired into my network. It all works fine, until I reboot my ubuntu box. After reboot, it can no longer see the network. I have it set up with a static ip. Not sure that I set it up completely correctly but it works fine...when working.. To fix the problem, I enter terminal: ifup eth0 That fixes all know problems until next reboot. What do I need to do so that it will remember settings and automatically be hooked into the network at power up?
I have a pppoe adsl connection. When I disconnect and try to reconnect, network-manager keeps asking for my password. I type it again and again with no success. When I reboot, it works again. On ubuntu, I use pppoeconf and it works well. So on Fedora I made a connection with pppoe-setup but neither ifup nor Code:
pppoe-connect commands work. When I type Code: pppoe-connect , it says Code: /usr/sbin/adsl-start: line 217: 13409 Terminated $CONNECT "$@" > /dev/null 2>&1 . When I type
Ifup ppp0 doesn't work either. However, with exactly the same settings, ubuntu connects to the internet.
I am in the process of settign up a home server under FC14. The installation recognized both NICs, one as Intel Gigabit and the other as a Realtek Semiconductor as it should be. But when trying to start eth0 (Realtek) I get the following error message:
[root@theraugafamily network-scripts]# ifup eth0 Active connection state: activating Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/1 ** (process:2296): WARNING **: _nm_object_get_property: Error getting 'State' for /org/freedesktop/NetworkManager/ActiveConnection/1: (19) Method "Get" with signature "ss" on interface "org.freedesktop.DBus.Properties" doesn't exist
state: unknown Error: Connection activation failed. Some more ifo the this NIC as it is of special type.It is a Viking PCI ADSL2+ Modem Card. I am quoting form the description "Being a gully integrated card, no external plug packs are required and cabling is simplified to just an ADSL line connection. The need to purchase an extra ethernet card is also eliminated, as yjis features is build into the card. The onboard Ethernet controller (RTL8139) makes the modem appear to the OS as a standard network card. Thus the Viking can be used with almost any modern O/S without the need for special drivers. This includes Windows, Linux, Solaris, xBSD, etc.." setting ACPI=off in GRUB.conf does not fix the issue
I've had 11.4/KDE working pretty well on dual boot Asus G73SW for a few weeks now. Only issues were the FN-* functions that control keyboard lights and whatnot but no biggie since the essential worked.The last couple of days the update notification was indicating 1,201 updates to be made. Yeah it seemed extreme but I googled around and checked the forums and there was nothing related. I figured I might be missing some packages since I installed from the live KDE CD (still 1202 updates!!!???). So I updated. Big mistake!!!!! Ever since NetworkManager cannot connect to the internet, be it wired or wireless.
Initially it could not even see my home network but it picked it up after I removed the plasmoid from the panel and reinstalled it. However it doesn't respond when I click the network icon and still no connection.I managed to get eth0 working with ifup but not wifi. The last part of network manager log file is quoted below. I can send the whole thing to whoever is interested. I can't make sense of it but maybe someone on the forums can.
I having a problem with my network. I'm trying to assign an IP alias of eth0:1 to eth0. If I use ifup eth0:1 is fails and corrupts the network. Making the network useless. But if I just enter 'ifconfig eth0:1 10.1.1.51', it work fine? My scripts look like these:
I have recently upgraded the ubuntu desktop edition from 8.04 to 10.04. after upgrading i cannot show my eth0 nic interface in the System > Preferences > Network connections----- wired tab. and i also not getting network indication in the top of the panel beside the date time indication. but i can access network and using internet with that lan card. i cant understad my eth0 is connected or unpluged..
I've got access to my LAN and the Internet via my wired ethernet connection. I'd like to share that access with my iPod Touch (device shouldn't really matter) via an Ad-hoc wi-fi network.
This tutorial in the docs seems to describe the right setup but is very out of date (7.04). Instead I found this tutorial and followed it to create the Ad-hoc wireless network. I was able to connect my touch to the resulting ad-hoc network without a problem, but I didn't have LAN/Internet access.What's the next step to get the clients on the ad-hoc network out to the Internet?I found this page in the docs that says I'd need to install dnsmasq-base and uninstalling dnsmasq. I checked and dnsmasq-base is already installed but dnsmasq is not. I do have dnsmasq in /usr/sbin but the package description makes it sound like this should come with dnsmasq. Is the page out of date? Will uninstalling dnsmasq cause other problems?
I have a question regarding the configuration of Network Connection. My wired connection is fine right now and when I check the network connection applet, it display active information of eth0. However, when I click the Configure button, the Network Connection window appears but there's nothing in the Wired panel. Should there be a eth0 in that panel? I remember I had one before, but after I messed with some configuration of VPN, my network became unstable and I remove the Network Manager to try to solve the problem. Since then, there's nothing in my Network Connection window, though I can still connect to my router with eth0. Now even after I reinstalled the Network Manager, I still don't get anything.
I'm having a weird problem, eth0 does not start neither on bootup nor ifup...not even issuing /etc/init.d/networking restart...i will show you some info just to check
Running 10.04. For some reason, starting today, I have no internet connection unless I run this command in terminal - sudo dhclient eth0. I have a hard wired ethernet connection on a Desktop PC with a static IP address (there are a number of devices in the house) and it has been running 100% for months and months. Why suddenly do I have to enter this command to get connection? When I switch on I get a connection in that when I click on the Top Panel icon and right click Connection Information it tells me I have an active connection to my router on the normal IP address. I cannot ping the router and Firefox says Server not found. After sudo dhclient eth0 everything works - what has happened since yesterday evening and this morning to stop what has been 100% for months?
I'm trying to connect to a hidden wireless network in ubuntu through the terminal but i am unable to do so.
I first tried using ifconfig,iwconfig and dhclient initially but i am only able to get an ip address without the default gateway and dns server addresses which i normally get through the network manager applet.
Then i tried using cnetworkmanager but failed miserably again i keep getting this error
Code:
Another applet is running: Bus name already exists: org.freedesktop.NetworkManagerUserSettings (pid 1851)
Then i used nmcli available with the network manager package. i was able to establish a connection only with the connections showed in the list. i use a hidden wireless network. i am unable to connect to the hidden wireless network using nmcli without actually creating a connection from the network manager applet.
When I log onto my Ubuntu 9.04 boot I am disconnected from the internet, on my windows 7 boot It works just fine, I have attempted disabling networking, power cycling the modem and router, and re-enabling networking, no dice though. hovering over the connection icon tells me that there is no network connection.
Opening the edit connections window tells me that there a wired connection called Auto eth0 that is set to never, and that is all that I can find. I hunted for other forums on this and found a few but none with a successful resolution.
Network card (82566DM-2 Gigabit Network Connection) is DISABLED upon reboot. Only way to bring it out of disabled mode is to rerun dhclient to obtain a DHCP lease. Upon reboot though, the NIC is back into disabled mode.
A workaround I have found is to uncomment the iface line in /etc/network/interfaces, but considering I have 14 identical PCs to this one, and only this one is currently giving me grief, I am trying to find the root cause
The machine successfully obtains an IP using the PXE boot option in the BIOS - so I can hopefully rule out hardware problems as a cause. Network cable has been replaced, as the location of the machine to a different switch port.
/etc/network/interfaces
Code: # The loopback network interface auto lo iface lo inet loopback
I just installed Fedora 10. I entered my static network info in Network Configuration. When rebooting, the eth0 says Inactive. I've read many articles about this problem on earlier versions and tried many of the suggestion, but have not found a definite way of solving this. Is there a better way or a workaround to get this machine on the network?
I'm using 11.3 gnome and cannot fix the eth0 connection. Tried to make it work with connection manager, ifup but both of them did'n make eth0 work. Here are some logs that you might wanna see:
lsmod: Module Size Used by nls_utf8 1165 1 st - Pastebin.com ifconfig: eth0 Link encap:Ethernet HWaddr 1C:6F:65:47:03:16 UP BROADCAS - Pastebin.com ifdown eth0:
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I have TP-LINK router that sends wireless signal through the house which I'm using on my laptop's Ubuntu to connect on the internet, also I can connect with Ubuntu from laptop via the same cable that I'm trying to use on my desktop, so the router and cable are working. Also on my dekstop I've installed Windows 7 and can't connect from there either. The computer is new so i doubt that there is something wrong with its hardware. It all started when my connection disappeared. My ISP advised me to reset my router by plugging out the power cable and plugging it back in after 5min, and so I did. After that I could connect only from laptop. Tried to reinstall suse, to install ubuntu, but nothing worked. When I installed suse on my friend's computer, the only thing that I had to do is to open YaST and change the Network setup method from ifup to the NetworkManager, and also insert the MAC adress in the connection's properties. Tried that on my computer, but also didn't work.
After rebooting, I found that the server couldn't see the network. The machine has dual gigabit ethernet (eth0 and eth1). eth0 is connected to the internet, but disappeared. ifconfig used to show eth0, eth1, and lo, but now only shows eth1 and lo. If I boot into rescue mode I can get internet and ifconfig returns eth0 and lo. Any ideas on how to fix this? I apologize in advance if I ask any noob questions. I'm not a very experienced Linux user.
After spending quite some time on this, I have narrowed it down to:
Adapter works OK with NetworkManager Adapter works OK with ifup if I run iwconfig after ifup has finished
It eppears to be linked to another thread Probl me de r seau wifi / Network manager in that dhcp needs to be running. (So it may be a 'feature' of RTL819 adaptors) So I've finally worked out that I need to start dhcp first.
I running Ubuntu ver 9.04 I have 2 problems that I think are related. After finally making a network connection I updated Ubuntu, and after a reboot I lost my network connection again.I updated the following file nm-networkmanager-settings.conf and saved it. After another reboot I then lost my network connection icon and it also does not appear under System > Preferences. I tried to then update the same file and can not save it, I get "could not save file".I have tried sudoedit, sudo gedit, gksudo gedit and some others that I cna not remember now and all give me the same result
I recently setup a new SUSE box for the purposes of acting as an ftp/sftp server. It's currently setup to run ProFTPD 1.3.3.rc3 and mod_sftp/0.9.7. The server has two internal network interfaces eth0 and eth1. eth0 is purely for internal use to accept ftp and ssh. eth1 is outward facing and receives connections from the WAN via SFTP over port 22. The problem I am facing is that after half hour to an hour eth1 stops accepting connections whenever there is no SSH connection present on eth0. I can't figure out why this is happening.
ProFTPD is setup as follows: SocketBindTight directive is on, default server and port are commented out.
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When the external interface is unreachable the proftpd and proftpd-sftp logs show no record of any connection attempt. I have noticed however if I leave eth0 down eth1 stays contactable without problem. Can anyone give me some pointers on what I can check to find out why this may be happening.
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
If I uncheck and recheck "Enable Networking" in the Network Manager Applet 0.7.996 I would expect the wired network to disconnect (which it does) and reconnect (which it does NOT). So I tried sudo ifdown eth0 and got
Quote:
Ignoring unknown interface eth0=eth0.
ifconfig tells me
Quote:
eth0 Link encap:Ethernet HWaddr 00:25:64:e8:18:2c inet addr:192.168.0.112 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::225:64ff:fee8:182c/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
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so I am at a loss. How do I stop and restart the network interface short of rebooting the machine?
How do you mannually set up a network using Yast/ifup? I'm trying to get my wireless running on a Broadcom 1390 WLAN. I've gone through the stickies in the wireless forum (this is my first stab at Linux) and have gotten the drivers installed and the internet working (albeit intermittently) using Knetwork manager. It seems that some folks that have had the same issue did not have problems setting the network up manually with Yast & ifup. I've disabled network manager in Yast, and I went through man ifup. It seems I need a "pre-configured interface," but I don't know how to make that happen.
I'm getting rather fed up with this Network Manager applet on Ubuntu and its seemingly erratic behavior.I often use my laptop for things like dhcp server to do pxe boot on other machines for netboot installs and other stuff. Often I have to set static address on eth0 etc.I know how to set a static address for eth0 by editing /etc/network/interfaces and all that good stuff, but when I click on the Network Manager applet, it says 'Wired Network - not managed'.I may have deleted it for some reason, but why does it no longer appear, even though eth0 is working?I've also found in the past that changes to interfaces in the Network Manager, such as giving eth0 a static address, do not seem to stick?
I have two connections for my PC, my Ethernet which is on the corporate network and my smart phone on 'usb0'. Both have full internet access.I want to stop my PC from connecting to the internet over the Eth0 while still connecting to internal servers then just have internet over usb0.If I go to the settings of 'Auth Ethernet' in the tray area, under IPv4 there is the routings section - I've tried enabling "use this connection only for resources on its network" but it doesnt work.
I'm getting rather fed up with this Network Manager applet on Ubuntu and its seemingly erratic behaviour. I often use my laptop for things like dhcp server to do pxe boot on other machines for netboot installs and other stuff. Often I have to set static address on eth0 etc. I know how to set a static address for eth0 by editing /etc/network/interfaces and all that good stuff, but when I click on the Network Manager applet, it says 'Wired Network - not managed'. I may have deleted it for some reason, but why does it no longer appear, even though eth0 is working? I've also found in the past that changes to interfaces in the Network Manager, such as giving eth0 a static address, do not seem to stick? It seems the only thing this applet is useful for is connecting to a wireless network.....and only with dhcp !!
i want to share the internet connection from Laptop to PC via LAN crossover cable here's how i connect to the internet in laptop, and connected PC via LAN:
i need to share pppoe(ppp0) to (eth0) , that is what i've been doing in Windows before, but i dont know how to share in Linux, i tried to follow Ubuntu Help about ICS, but it doesn't work
I am trying to sort out some issues following an upgrade from F12.
I have eth0 as the connection I want to use. Prior to the upgrade, this connection was enabled and active at boot.
Now, for some reason after the upgrade it has to be manually enabled at every boot - even though when I go the Network tool, Ethernet Device > General tab - "Activate device when computer starts" is checked.
At every boot time it is inactive.
In all the ifcft-eth0 files, the ONBOOT parameter is set to "yes".
