Debian :: DNS Resolution Stops Working Sporadically
Jan 31, 2016
I have a Lenovo Thinkpad R500, and recently I recently upgraded it with a Crucial SSD as well as 8 GB of DDR3, as I had a blank SSD installed, I decided to switch from Mint to Debian and see how I like it. I'm using Debian 8 with the MATE desktop and so far it's been quite a pleasure to use, besides one small thing.
Every 5 to 10 minutes, DNS resolution stops working completely. I can ping IP addresses as well as connect to websites by IP address just fine, however I cannot resolve hostnames. The problem exists regardless of whether I'm connected to my router via a wired or wireless connection. It is not occurring on any other computer in my house and didn't exist on my old Mint installation. If I disconnect from my home network by either unplugging the Ethernet cable or flicking the WIFI switch on my laptop, and then reconnecting, I can resolve hostnames again, albeit only for another 5-10 minutes, when DNS stops working again.
I was originally using DHCP and my ISP's DNS servers, but switched to my laptop using a static IP address and Google's DNS Servers at 8.8.8.8 and 8.8.4.4, the problem persisted after this change.
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Aug 23, 2010
I'm running KDE 4.4.5 under Debian testing/unstable (squeeze/sid), and while I am in KDE, sometimes, my "up-arrow" key stops working.The only keyboard events I've remapped are <printscreen>, <ctrl>+<pagedown>, and <alt>+<pagedown> When I logout of KDE, and am in KDM, the offending key works again.When I <alt><ctrl><Fn> to a virtual terminal, while still logged in to KDE, the offending key works.
XEV run while the key does not work *does* register the keystroke, it just seems to me that, for whatever reason, KDE is not dealing with the keystroke.It seems to me that the only solution is to logout and login again.
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Jan 28, 2010
i got the following issue. I have Ubuntu 9.10 (x64) on an AMD Phenom II X4 with a Gigabyte mainboard (chipset AMD 785G) and a SATA II hard disk. Kernel version is 2.6.31-17-generic. After selecting Ubuntu from grub boot menu, I get a black screen and that's basically it.
This is a snipplet from syslog:
Code:
Jan 28 16:46:19 mind-the-gap kernel: imklog 4.2.0, log source = /var/run/rsyslog/kmsg started.
Jan 28 16:46:19 mind-the-gap rsyslogd: [origin software="rsyslogd" swVersion="4.2.0" x-pid="862" x-info="http://www.rsyslog.com"] (re)start
[code]....
The odd think is, that this happens just from time to time (~50% of all boot attempts). Booting into failsave mode does work every time. Booting an older kernel (not failsave) doesn't work every time either.
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Nov 13, 2010
I'm running Ubuntu 10.10 Maverick Meerkat 64-bit on my desktop with a wired internet connection (with no firewall). For the past 2 days, I have observed that1. Firefox randomly throws up errors like "Problem loading page" whenever I click on a hyperlink. When I click on Reload, the page loads up just fine. This has been happening a lot recently..and I do not remember updating anything consciously. By the way, ipv6 is disabled in Firefox.2. The network stops working all of a sudden (usually indicated by the Firefox error). The Autho Eth0 indication is active, but I am unable to connect to any external machine.
3. Needless to say, this error is manifesting itself in apt-get as well. I get "something wicked happened" errors all the time, and am unable to download or install anything.That this is not a problem with the ISP is obvious because I also have Windows (from which I'm typing this, ironically), which is able to access the internet.Is this a bug in Ubuntu 10.10?
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Jul 18, 2011
I use my debian machine for masquerading, packet filtering anilar for a tiny network.It runs the latest debian testing.Every now and then (i am talking about weeks) the connection to my internet stops working.ifdown eth0; ifup eth0 brings it back.The other interface (eth1) is never effected.The odd thing is, there are no warnings, no messages .. nothing.I cant find any entry. Nothing in the logs, nothing in dmsg and no kernel panic.The only way to find out when it might have been happened is to search in several daemons log files,to find out when their first error connecting to the internet occurred.I ran memtest without any results.The nic is e1000 compatible.
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Jun 28, 2015
In a hp pavilion 15 Notebook PC with Debian 8.1.After two hours or so wifi stops working. Network-manager does not give any indication of failure but some times a yellow question mark.
rfkill list wifi gives:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
ifconfig gives:
eth0 Link encap:Ethernet HWaddr 8c:dc:d4:7b:c2:0e
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:3994 errors:0 dropped:0 overruns:0 frame:0
TX packets:3661 errors:0 dropped:0 overruns:0 carrier:0
[code]...
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Sep 9, 2011
when running on AC-power, only on battery.When I have my laptop on battery, and I plug the mouse in, then the USB mouse is working if I keep moving it around. If I then lay it alone for 5 secs, or so. it stops working.I cannot get USB sticks to work as well.
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Jun 25, 2010
The browser has flashplugin installed previously.It has been working without problem before. For unknown reason it stops to work.Now I'm required to install Adobe Flash Player.I have"install_flash_player_10_ linux.deb" download on Adobe website. Whether I run dpkg to install the package?
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May 16, 2015
I am having a problem which I am having a hard time finding out about. To start I am running Debian 8.0 on a laptop through an external Seagate 2TB HDD that I connect via USB 3.0. My problem, basically, is when ever I use Linux for an extended period, for what ever reason, some of my icons disappear and my terminal breaks. More specifically, say I were to try to shut down the computer at the time of the problem the icons and text telling me which option is which, in xfce4, are gone. Then if I click on the would be shut down button it just goes to a black screen with a white underscore and hangs there. This symptom is probably due to the fact that commands in the linux terminal stop working. As in, if I were to type ls it tells me there is no command (something like that) and tells me some folder directory that I think is where bash is located. I wish I could be more specific with some of these details.
Anyway the only way for me to "fix" it is to just do a hard shut down, then upon reboot it clears the orphaned nodes. Also, before, when I installed linux several weeks before I never noticed this issue, if it was ever present. However, now that I have seen it, I have since tried re-installs of debian to no avail. I have a feeling it could be the external hard drive, but that notion is not based on any evidence.
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Mar 24, 2015
After installing KDE USB keyboard and mouse won't work. They are added to /proc/bus/input/devices though.
I also tried to install Gnome; same thing.
I took #usb-devices and they were there also..
But #usbhid-dump did not generate anything to screen.
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Nov 9, 2010
I'm running Debian server 5.0.6 and the latest stable version of Apache. I am hosting a website and it will stop responding after an unknown amount of time. In order to make the website work again I have to run /etc/init.d/networking restart. The server is running a static IP address and is not resetting when the website goes down. I don't know where to start looking.
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Aug 17, 2011
Testing distribution. Installed Linux 3.0 but left 2.6.32 on as backup. When I boot into the old kernel, wireless mostly works OK, but never when I boot with the new kernel.
Results of dmesg|grep wlan0 on 2.6:
[ 22.005102] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 28.196774] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 28.644779] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 30.688053] wlan0: direct probe to AP 00:19:5b:06:9f:ba (try 1)
[ 30.694053] wlan0: direct probe responded
[Code]...
Noticing the Access Point looked like it needed the MAC address, I ran iwconfig wlan0 ap <MACADDRESS> and sometimes it will work, and wicd can connect to the access point. But sometimes the command fails to run.
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Mar 19, 2011
I have xorg configured to enable middle button emulation:
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
[code]...
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Mar 14, 2015
Have a very unusual problem that I am looking at troubleshooting. Only problem is I don't know where to start.I have the following wireless usb device:
Code: Select allBus 002 Device 007: ID 050d:845a Belkin Components F7D2101 802.11n Surf & Share Wireless Adapter v1000 [Realtek RTL8192SU]
Now it is fine when browsing the web, but whenever I download a large file/game from Steam it becomes unresponsive and stops working.I have noticed it happens whenever the download is maxed..which at the moment is at around 5.4mbps on steam.Never get a warning...just internet stops working...no pages can be displayed...The connection never disconnects.I can only get it working again when I unplug it and re insert it back in again.
Things I have tried:
- Returning it to the shop and getting a new one (didn't fix it).
Code: Select allzerocool@hal9000:~$ uname -a
Linux hal9000 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt4-3 (2015-02-03) x86_64 GNU/Linux
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Jun 5, 2011
I have installed the Nvidia drivers on my desktop using [URL] according to the Debian way. Everything seems to be fine except the resolution. The best it will let me choose is something like 600x480. I have searched and most of what is suggested around the web is to change xorg.conf. I have tried this using different setting suggested but nothing is working. I did not have a xorg.conf file so I created one with the setting suggested on the Debian wiki.
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May 6, 2010
I have installed openSUSE and everything is fine except one issue.The screen goes black and audio cuts off for like a second and comes right back. It happens sporadically once or twice here then some times a few times repeatedly.Running openSUSE 11.2 Drivers from the NVIDIA Repository.(For my GTS 250)Stripped the audio flags from the EDID for my tv to prevent trying to send audio over hdmi (I'm not using the hdmi pass through on my video card) so i can use the audio out on my sound card.No error messages are displayed when it blankslspci output:
00:00.0 RAM memory: nVidia Corporation C51 Host Bridge (rev a2)
00:00.1 RAM memory: nVidia Corporation C51 Memory Controller 0 (rev a2)
00:00.2 RAM memory: nVidia Corporation C51 Memory Controller 1 (rev a2)
[code]....
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Aug 13, 2010
I am using openSUSE 11.2 x64 with KDE 4.3.5.I am experiencing sudden, sporadic drops in performance due to the kwin and Xorg processes suddenly consuming large amounts of CPU for a few minutes (maybe 30-40% each) before dropping back to normal (1-3% each). I am seeing this using top.
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Jan 11, 2010
I have a desktop server set up with 3 x 1Tb disks set up in a number of partitions. Some are under RAID 1, others under RAID 5. eg:
Code:
md0 : active raid1 sdc2[2](S) sdb2[1] sda2[0]
513984 blocks [2/2] [UU]
[code]....
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Apr 6, 2011
I'm curious as to whether anyone else has experienced this, and has an explanation. I'm running Kile 2.0.85 under openSUSE 11.3 32-bit on a Lenovo X61. Twice in the past couple of days I've had the bizarre experience that, upon a sudden burst of typing my text has appeared in Kile in reverse order.
no ngis fo ecnacifingis eht fo redaer eht dnimer esaelp ,dniw cihportsoeG a htiw snoitalumis eht gnicudortni erehw ,Note the perfect reversal (I rarely type that accurately in forward mode). A day later it happened again: )1.3.5( noitceS fo hpargarap dnoces eht ni ,niaga ecnO.I've been using Kile for almost a year now, on two different machines and under several versions of openSUSE. Nothing remotely like this has happened before. I don't think I have a virus. I can't think of any event that may have heralded this mystical behaviour. Cheers, jdw
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May 18, 2011
Something weird sometimes happens on my Debian system. Typically at the prompt line I can use combo like alt-d to delete a word, alt-f to go to the next word, etc. But quite regularly something happens in my xterm that makes alt-d and alt-f not work anymore: suddenly they print 'ä' (alt-d) and 'æ' (alt-f).
Note that this happens in a terminal that was acting like I wanted to at first. But then somehow must send a code or something that changes the behavior of the terminal. It happens in xterm because that's where I always work. If I go to a console by doing ctrl+alt+f1 then by default alt-d does what I want (delete word) and so does alt-f. Maybe that I could screw that one too by doing some bad manipulation: I just don't know because I don't work in text mode.
Also note that if I spawn an xterm from the "broken" xterm, then the new xterm work as I expect. What is going on? What am I turning on that was off previously? My .Xresources says that and, once again, when I open an xterm it behaves as I expect it, it's only later on that "something" makes that it goes back to broken "I-print-characters-with-diacritics-and-other-nonsense" mode:
$ more .Xresources
XTerm.vt100.eightBitInput: false
XTerm*eightBitInput: False
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Mar 18, 2010
I have Ubuntu 9.10 installed on my laptop. The laptop has a single HDD with 2 partitions. Partition 1 has WindowsXP and partition 2 contains other data, among which the directory of the ubuntu installation. The partitions are formatted as NTFS. Ubuntu has been installed with wubi on the second partition. Ubuntu has been working fine for 2 days. Last night I updated the Ubuntu system and it required a restart. Needless to say, after the restart, grub wouldn't load. It just shows the shell.
I read the threads inside this forum and people usually manually select a kernel and boot up ubuntu, but when I do this, after I input all the commands I input "boot" and hit ENTER. The computer starts booting up until a point when it says ALERT! /host/ubuntu/disks/root.disk does not exist and something about using selection #1 and exits to shell (Easy Shell or Easy Boot, I can't remember exactly what it says... Easy something anyway) I've read that this is possibly caused by a NTFS dirty tag... but I do not see how to fix this problem.
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May 7, 2010
I have read no fixes anywhere, oddly. This problem happened in 9.10 and seems to be back in 10.04. The fix on Ubuntu-Geek, which was re-posted various places, does not work either. However, I do know this is not a hardware issue... or think. I have a dual-boot with Windows 7 and it is not affected by this. Also, if I install anything 9.04 or earlier, this does not happen. Oddly, my netbook had 9.10 and now 10.04 but not this issue. Sadly I feel I must try other distros as this appears to be a Ubuntu specific error.
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Aug 11, 2011
This is the first time I've got a major problem with Ubuntu (I started with version 5), and this one is particularly frustrating.I'm running Ubuntu 11.04 on my old (2007) desktop PC.Occasionally, but more and more often now, the keyboard just stops working. The mouse is still fine. When I shut down, I would sometime notice that the "stop crash report generation" process fails. Then the shutdown sequence stops at some point, and I am forced to do a hard shutdown, power down for a while, and reboot. If I don't wait after power off, the keyboard freeze would occur again at any time during the start up sequence. I even had a keyboard freeze after manually switching to the Windows boot.
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Jan 30, 2010
v been trying to fix this for a few days now, and the stress has been building up. I have searched for hours on end trying to fix my sound, and If i can't fix it soon ill have to spend another few hours going back to Windows XP even though i wiped my harddrive for Linux Ubuntu 9.1.My issue is, that my sound changes from what it should be, to a dummy stereo output sound. Which i dont know how to fix. I'd be incredibly happy if someone could give me a link to a tutorial for dummys,
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Nov 16, 2010
if the computer sits for a length of time, not being used. I have not timed it, but around an hour it seems. All drop downs work, but whatever i click on doesn't do a thing so i can open the drop down to shut down but when i click on it it just sits there or if i try to open firefox or chrome it just sits there. if im browsing the web or playing a game for a couple hours everything works but it i leave it to do something else and it takes close to a hour, and i dont shut it down. It just stops working. then i have to kill the power to stop it.
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Feb 20, 2011
I'm using Fedora 14, 64-bit. My wi-fi adapter is Intel 5100 AGN on a Lenovo laptop. The wi-fi router is Zyxel. From time to time, I'm getting a black message, that a kernel component has crashed (or something similar). Here are the error details:
Package: kernel
Latest Crash:Sun 20 Feb 2011 04:27:54 PM
Command: not_applicable
Reason: WARNING: at net/wireless/core.c:633 wdev_cleanup_work+0x52/0xbd [cfg80211]()
Comment: None
Bug Reports:
In most cases, after that, I'm loosing the internet connection. I can't open any website, can't ping the router (which is my default gateway) and now it happened even without any error, which really pissed me off. Logging out and back in doesn't help, I need to make a full reboot to get back my internet connection.
Under Windows 7 everything is working fine and I'm not having any trouble with the internet connectivity! I had Fedora 11 32-bit before and it was also working normally!
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Apr 19, 2011
My USB mouse stops working sometimes after 5 mins, sometimes 30 mins. Used two different '"corded" USB mice, different USB ports. Same issue. The power to the mouse itself seems to turn off as the laser light is off. Unplugging and replacing does not fix, only a reboot. Same problem with Ubuntu and Mint.
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Jun 27, 2011
I have just installed Fedora 15 xfce on my desktop. When I 1st start my computer my RaLink RT2870 works but after a while it disconnects and won't start again till I restart.
I can't see any pattern I am doing to make it stop. I been doing various tasks when it stopped working. I don't what command prompt or configuration file to look for or what to configure in the file.
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Jul 5, 2011
Initially it was working fine after fedora 15 install.However recently it simply stops responding after a period of time.After reboot, sometimes it does repair itself but again stops working after some time.I'm not aware of any package updateperformed or configuration change that would have impacted it.And it does work intermittently as mentioned above
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Jul 13, 2011
I recently compiled a new kernel (2.6.38.8) but it seems I forgot something. Right after grub, when the new kernel is selected (by using the keyboard), the keyboard stops working (it's on usb). When I select the old kernel everything is working nicely.
I actually used the config of the old kernel to configure the new one but excluded some modules before I finally compiled it. Now I'm asking myself which modul did I erroneously throw out?
Edit: A somewhat related question: Is there a log somewhere in the kernel source folder (or someplace else) which shows the kernel compilation process?
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