I've been messing around with debian A LOT, getting to know it, seeing what makes it run. I recently screwed up big time and nearly rendered it unusable, but I managed to slowly repair it. However, I was unable to do any kind of auto-DHCP connections. Now when I put eth0 up, the connection will cut out after about 5 seconds, and I can't connect any more until I either restart the networking service or do ifdown then ifup.So can anyone suggest to me any logs I should look for, or any packages I should make absolutelyure I have installed and configured properly? Any config logs that need posting
I'm developing an embedded Linux (it is almost over now). What I'm struggling with is the system goes unstable by cutting power source frequently and it does not boot anymore. It even does not perform fsck. The system just has a XFCE with a fixed Qt App autoloaded to display some charts. My question is that how commercial embedded Linux distros (like Wifi AP's management Linux, ...) avoid this problem?
I'm using NetworkManager for networking.After a big Debian upgrade I had a new problem.Every boot it create a new (invalid) "eth0" connection, and NetworkManager connect automatically to it.As expected, the connection is invalid, and I'm not connection to the Internet.
What I do to fix this every boot is manually remove this wrong "eth0" connection and NetworkManager automatically connect to my good eth0 connection.
Note: If I boot my machine N times without deleting connections, I see N same and invalid "eth0" connections.I think this happen because /etc / network / interfaces conflicts with NetworkManager, but I don't know what trigger this. Here is my relevant configuration: /etc/network/interfaces:
Code: Select all# 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]....
* No "/etc/NetworkManager/system-connections/eth0" connection is created in configuration, but it's displayed.
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
[code]....
so I am at a loss. How do I stop and restart the network interface short of rebooting the machine?
I'm using Ubuntu 6.06 and Apache.I connect to the machine via FTP. It seems as if the connection times out every few seconds. If I u/l a file it will take 15 seconds to connect. Once that connection is open I can u/l more files instantly. If I wait a few seconds it closes, then I have to wait another 15 seconds for it to reopen. Any ideas how to make it not time out so frequently?
I upgraded to Karmic the other day and my Wireless Internet has been disconnecting every hour or so. I had the same problem on Intrepid but I managed to fix it somehow. After disconnecting, it will reconnect after a few seconds.
I am far too often getting connections dropped when trying to load web pages from my local server. From my mac running Safari I get the error message "Safari can't open the page...because the server unexpectedly dropped the connection." From Firefox on my Ubuntu 0.10 desktop it opens the window that says "You have chosen to open index.php..." and ask if I should edit the file or save it. When I tail the apache2 access.log it shows the previous successful page load but the one that failed is not mentioned. In error.log I get some stuff I don't understand, except the last line which says aborted:
On my machine (Desktop PC) I have 2 network card : wireless (rt61 802.11) and a wired card (BCM44). When I install debian 5.
The wired card is detected and logical name eth0 is assigned, while wireless is not assigned I install firmeware* software to configure the card. It is done in some way ( I used mnetwork from mepis, it works fine).
Now the problem: eth0 disapears, and no eth0 inteface found? ifconfig gives just wlan0.
Question: Why there is no eth0, it was before configuration of wlan0 ?
How to active again eth0, or ho to create the logical eth0?
Recently pcmanfm crashes more frequently then before. Each time it occurs, I cannot open another instance of it until I reboot my desktop/laptop. But this is not possible if I happen to be doing some long computational work. I have been using it with fluxbox for two years already, and previously I simply reopen another new window and get on with my work.
Using a USB ISO, I recently installed Debian 8.0 Jessie (64-bit, Xfce DE) to a new computer. I usually lose my Wifi connection after 1-3 minutes when donwloading/uploading at around max. speed 4 Mbps/512 kbps. Sometimes it will last 15+ minutes.
When lightly browsing it can usually stay connected for 15-30 minutes. I have to disable and enable Wifi using NetworkManager to connect again. If I remember correctly, there were problems with the Wifi connection even during the installation of Debian.
This Wifi USB adapter works fine on my old computer with Debian 7.7 (32-bit). No problems with the Wifi connection yesterday on my old computer during 10+ hours of activity.
This Wifi adapter also works fine on this new computer when I boot from a live USB (Rescatux 0.30.2) downloading and uploading at max. speed for 1+ hour.
I already tried some suggestions I found online, but they didn't work:
* changing Wifi channels between 1, 6, 11 in my router settings * changing WPA-WPA2 to WPA2 in my router settings * ignore IPv6 in NetworkManager * change probe_wait_ms from 500 ms to higher value by adding Code: Select alloptions mac80211 probe_wait_ms=1000 or Code: Select alloptions mac80211 probe_wait_ms=3000 to /etc/modprobe.d/mac80211.conf and rebooting * disable Power Management for Wifi adapter (not supported) * ...
I can also post the output of commands from Rescatux or my old computer if needed.
Output of commands on Debian 8.0 64-bit (I edited out some info, MAC, ...; not sure if that is important):
Code: Select alluname -a
Linux d8lnx 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-2 (2015-04-13) x86_64 GNU/Linux Code: Select alldmesg ... [ 291.292408] ieee80211 phy0: wlan0: No probe response from AP XX:XX:XX:XX:XX:XX after 3000ms, disconnecting. [ 291.459825] cfg80211: Calling CRDA to update world regulatory domain [ 291.462030] cfg80211: World regulatory domain updated: [ 291.462033] cfg80211: DFS Master region: unset
Note: I use debian testing.GUI very frequently completely breaks for me, it looks like this:URL....It usually happens after a short freeze or after going back to GUI from TTY (which doesn't display because of a known Nvidia proprietary driver issue).And sometimes my laptop goes into sleep state by itself while it's being used. This is lenovo ideapad z510 laptop, with intel+nvidia GPU (nvidia Optimus). To use nvidia GPU I use bumblebee.
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:
[Code]....
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.
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.
I'm running 10.04 and my eth0 connection disappeared. If I go into my network tools, I can see the IPv4 connection and test the ping and all. When I go to my network connections, I do not see the eth0 at all. I have not made any serious changes lately and have no clue to what could have caused this. I have tested the cable with my laptop, and it works fine. I have serious reddit browsing that needs to be done!
I am setting up a fresh Fedora 10 install on an older computer for a roommate and have one odd little problem, everything else appears to be working just fine.
The network connection drops after about 2 minutes (somewhere between 90-120 seconds). This only happens in the installed Fedora 10; it does not happen at all when I boot a Kubuntu LiveCD.
Here's what I know:
The machine is a Dell Dimenision 4500, 2.0 GHz, 512Mb ram.
The ethernet card is 21x4x DEC-Tulip compatible 10/100 Ethernet.
Unplugging the ethernet cord and plugging it back in allows the network interface to come back up, grabs the right IP, but only holds it for another two minutes.
ifconfig and route show all the right info while the connection is good, but inet disappears once it goes down.
'ifdown eth0' and 'ifup eth0' do not bring it back up.
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".
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 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 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 am running fedora vm under XP host and using NAT connection to the Internet. It usually works fine, but some time the connection is just lost. I went menu System->Admin->Network and see the interface eth0, but I cannot activate or deactivate. The status is inactive. (when the connect works, the status is active). so I try "ifdown eth0" and "ifup eth0" command, and got
"Error: Connection activation failed: Device not managed by NetowrkManger
The menu System->Admin->Network device control show no interface.
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
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.
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?
Yesterday I did an upgrade and today my box is unable to connect to the internet.
I have tried another cable, it didn't help.
Basically NetworkManager does not connect eth0 to the network, if I try to run ifup from the command line I get:
Code:
I can see in network configuration settings, that the device has been correctly detected and eth0 interface is correctly activated, yet when I try to uncheck the box manage by NetworkManager and start it manually, it tells me that the cable is disconnected... I've tried two different cables, different ports on my router - no help.
