Ubuntu :: SSHFS Over VPN Breaks When Connection Lost?

Dec 2, 2010

I am mounting a remote directory using sshfs, over VPN. If the VPN connection is lost, the directory obviously can't be read. But, when I try to "ls" in its parent directory, the command just stalls. No error messages, and ctrl-d, ctrl-c, ctrl-z don't do anything. The command I ran to mount the directory was:
Code:
sshfs -o workaround=rename bt@example.com:/dir1 /dir1

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Ubuntu Networking :: SSHFS Crossover Cable Connection 10x Slower In 10.04

May 2, 2010

I have a desktop running Ubuntu 8.04. I installed 10.04 on my laptop. When I mount my desktop music folder on my laptop and transfer files, they now only go at 100-200 KB/s. When I had 9.10 installed, they transferred at 1-2 MB/s.

This is the command I use to mount the directory:
sshfs matt@169.254.6.233:/home/matt/Music/ /home/matt/Music/desktop/
Is there any way I can speed it up to get it back to max speed?

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Ubuntu :: Internet Connection Breaks When Idle?

Aug 9, 2010

I ve been a loyal fan of RedHat Linux for last 5 years.I switched to Ubuntu just few days back.Let me tell you, I ve already started loving it.However I m facing few issues while downloading from the Net.While downloading some softwares from the net using 'Package Manager' or 'BitTorrent Client' or directly through Firefox, I m getting the following error if my computer remains Idle for around 20-30 minutes.Error Says, Check your internet Connectivity'.I then need to Redial to connect to Internet.I never faced this issue in RedHat or Windows.I use to put my machine to download for the entire night and never faced connectivity problem.Where as if the computer is not idle and I m hitting keyboard keys, the download happens smoothly.It seems like some thread is checking my status. and if my status is Idle its disconnecting the net

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Ubuntu Servers :: FTP Breaks With Outbound Connection

Jul 24, 2011

I'm sending files to a remote server by way of FTP via a PHP script. With the firewall turned on these files are getting to the remote server with 0kb and the remote server is timing out before all the files are received. When the firewall is turned off the all files are received in tact. There are no outbound rules set in the iptables, looking for ideas on what to check next.

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Ubuntu Networking :: Connman Installation Breaks Ethernet Connection

May 16, 2011

I was browsing the available packages to install the weather indicator and noticed that a network indicator was available. apt-get said that it needed to install 'connman' and remove 'network-manager' and 'network-manager-gnome' in order to install the network indicator. I foolishly assumed it knew what it was doing so I went ahead and performed the installation/removal and restarted the computer.

Now I cannot connect to the internet. I only have an ethernet card for connection to the internet, no wireless or otherwise. The configuration I use is not DHCP, but a manual settings of address/subnet/gateway and name servers

When I try to set the network values through the network indicator some of them do not stay set. The gateway value appears to be set, but then after closing down the indicator window completely it comes up with the value 'Modified'. The DNS servers is the only other value that does not stay set, but it only changes to be blank. The connection never works.

So, I downloaded 'network-manager' and 'network-manager-gnome' on another computer, transferred the packages by USB, and reinstalled them (uninstalling connman and the network indicator). But the network connection remains broken. At least with 'network-manager-gnome' the values I set stay set, they just don't work anymore. I've tried editing /etc/network/interfaces to previously working values directly, but they do not seem to have any effect either. The connection no longer works.

I really do not care if I use the network indicator or not at this point, I simply want the network connection to work properly.

Edit: I realize I forgot to say that I'm using Ubuntu 11.04 (upgraded from 10.10). The network card is the "Integrated Broadcom 57780 Gigabit Ethernet controller".

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Ubuntu Networking :: Server With Both NICs Enabled Breaks Internet Connection?

Nov 25, 2010

I have installed Ubuntu 64 10.04 server. I have two nics and have set them up to both be static with their own IP with the correct gateway, network, broadcast, subnet and dns-nameserver. When I have both enabled, I can ping local pc's but I can't ping Internet sites like Google nor can I get out to the Internet with apt-get or Lynx.

If I disable one, then I am able to get out to the Internet. All my configs look good, and it does not matter which one I disable, just so long as there is only one NIC on, everything is good.

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Fedora :: FC12 - DHClient Breaks My Internet Connection

Mar 17, 2010

Latest FC12 update included dhclient-4.1.1-9.fc12 which fails to configure eth0 after restarting the computer. Had to remove/downgrade to 4.1.0* (and reinstall dracut and NetworkManager(-glib)). There is no config file in /etc/dhcp/dhclient.d so I don't know how to reset dhcp/eth0 to connect. Thought some one smarter than me might have noticed this by now and worked out a solution. Can't tell that anything in Bugzilla sounds like my problem. Might only be x86_64 or KDE-4.4 problem as my 32-bit Gnome install is not affected. Easy enough to grab the rpms, just annoying. Still haven't learned how to keep a package at version x.x with Fedora yet but that's another topic.

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OpenSUSE Wireless :: Strange WiFi Behavior Breaks Connection Repeatedly

May 30, 2011

I have recently upgraded to 11.4 and also had to renew an AP (HP ProCurve 10ag). This was several years old but replaced an identical model which had been working well until recently. I thought it would be appropriate to flash newer firmware as the device four releases behind the times. The access point serves partner's XP laptop and my openSUSE 11.4 laptop and after flashing the firmware both machines would make a connection and then break and remake, to the extent that the openSUSE machine became unusable. I thought it was an encryption problem and spent hours changing the AP and Client setups to no avail

After reading a thread here I checked out dmesg and this is what I found:-
[78.639247] wlan0: authenticate with 00:1d:b3:4b:ae:14 (try 1)
[78.640804] wlan0: authenticated
[78.642507] wlan0: associate with 00:1d:b3:4b:ae:14 (try 1)
[78.651195] wlan0: RX AssocResp from 00:1d:b3:4b:ae:14 (capab=0x411 status=0 aid=1)
[78.651200] wlan0: associated
[78.652222] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[78.652283] cfg80211: Calling CRDA for country: DE
[78.674378] cfg80211: Regulatory domain changed to country: DE .....
This went on and on.

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Ubuntu :: Wired Connection Sometimes Lost Connection?

Jun 28, 2010

i am using ubuntu and with all versions i have one pretty anoying problem. My wired connection sometimes lost connection and i can't reconnect for 3-10min. sometime longer. Technically everything is allright. With win7 i never had such problems. Any solutions how to fix this problem? Laptop: Lenovo Sl510 T5870(2GHz), 2GB RAM, 250GB 5400rpm HD, 15.4in 1366x768 LCD, Intel 4500MHD, CDRW/DVDRW, Intel 802.11agn wireless, Bluetooth, 1Gb Ethernet, UltraNav, Camera, 6c Li-Ion

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Debian :: Connection Breaks Time To Time / Sometimes Cannot Connect Automaticaly After Restart

Apr 22, 2010

Since the upgrade from Lenny to Squeeze on my Notebook Toshiba Satellite Pro U200 with Intel Pro/Wireless 3945 ABG I have wireless connection problems.The connection breaks time to time and sometimes cannot connect automaticaly after restart. BTW I didn't change anything on the wireless or network configurations on the notebook and on the wiereless router.

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Ubuntu :: Lucid Lost DSL Connection

Sep 13, 2010

The computer is a K9n6pgm2+ mainboard w/2gig of RAM and an AMD Phenom Triple Core. My Harddrives are /dev/sda=320gig and /dev/sdb=80gig. Resident on sda is Ubuntu 10.04 (fresh install) w/Windows XP installed at the final 40 gigs, installed after Ubuntu install and then used the 9.10 live CD to reinstall GRUB. On /dev/sdb is Ubuntu 9.10.I installed the fresh Lucid install 3 months ago when I purchased the 320 gig HDD to replace the failing 40 gig and it has run perfectly until yesterday. I presently have a 2Wire Modem located at 172.16.0.1 and I have a new Motorola in the mail but I presently cannot get Lucid to find my internet connection.

If I boot into XP everything is fine. i can go all over the net. If I boot into Karmic, all is well. I am typing this in Karmic so it is strictly a Lucid problem and I have tried all that I know to do and I really want my Lucid install back.

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Ubuntu :: 10.04 Freeze And Lost Connection With HDD?

Nov 26, 2010

Log file viewer also can't provide much help. I'm also affected by this issue that has been gone on my PC for almost 2 months, now. I've been forced to re-install Ubuntu ( from 9.04 to 10.04 ) countless time. As other users mentioned in their thread, the problems occurred randomly. Sometimes right after start-up, sometimes after 10 min to an hour of PC usage and sometimes no freeze at all. But the symptoms seems similar though on different component of hardwares. Me, myself, my PC always started to display freezing symptoms after 2-3 days of any Ubuntu fresh installations. The only way to re-boot are through RSEIUB/O ( and luckily I've never failed to do so ). Its just maybe took countless time of Ctrl + Alt + Del, before I could enter Grub menu and after that Ubuntu. Seems like that BIOS doesn't recognize HDD ( where the Ubuntu situated ), but oddly it ( BIOS ) only rcognize the CD/DVD drive . Lately, to overcome this HDD problem, I tried to pull out the SATA cable connected to CD/DVD drive and left only the SATA cable to HDD. And guess what, I've never encounter this unrecognized HDD problem for the past 2 days. I suspected the cause off all this issues are maybe the AsRock G31M-VS2 mobo that I've just installed about 2 month ago. But certainly, this issue never back me off my love to Ubuntu. As long its Open Sources.

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Ubuntu Installation :: Lost Internet Connection / Get That?

Feb 23, 2010

Somehow I lost Internet connection and tried various threads and still does not work.

When used the liveCD I can access Internet

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Ubuntu :: Lost Wired Connection - Can't Restore

Sep 25, 2010

We had a power-out, which left my Ubuntu box off.

The modem & router is a friend's place, and it was rebooted. Both his boxes (Windows XP and 7) work fine.

but I can't get my box to hook back up. I've tried rebooting, unplugging cable to router from both ends (my box and router), rebooting his modem (Rogers' service) by turning off and on power supply for 3 minutes (as recommended by Rogers).

Once I got the Network-auto to show in the dropdown menu (I have a radio symbol on panel across top), but not again. I tried adding and editing a network connection (both wired and auto) but neither works, and if I boot unconnected they disappear.

The only thing I can get to show is a black box to the right on the desktop that has a red x and says Network Disconnected.

Me and friend are both frustrated as I don't want to interrupt his working use of internet to fix mine.

I have never understood how to connect to internet really, but it seemed to have solved itself in the past.

There is no password on the router, and we are not using wireless (which we never got to work).

The Rogers Modem is a "Motorola Surfboard" (Black).

The router is an Airlink 101 super-g wireless router.

My machine is a p4 motherboard with builtin ethernet socket on back.

My Ubuntu is I think Karmic 9.1

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Ubuntu Networking :: Lost Connection Icon ?

Jan 1, 2011

The connection/network icon that showed next to the clock is gone. i told it to "move", but instead it removed. grrrrr. now when i go to add, i dont see it. same with email.

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Ubuntu :: Lost The Connection To The Internet And Also The Taskbar?

Jun 12, 2011

I'm running 10.10 and I uninstalled some files through synaptic and it also removed a lot of other packages which messed up my whole system. I lost the connection to the Internet and also the taskbar. I don't know how to re-install those lost packages because I have no net connection. How can I fix this? This is what I removed:

Completely removed the following packages:
apt-xapian-index
libboost-python-dev
python-xapian

[Code]...

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Ubuntu :: Still Have Wireless Connection But Lost Internet

Nov 30, 2009

Three months ago my daughter went off to college with a new computer. I zapped her old system and successfully installed Ubuntu 9.04 from a CD. Everything worked fine including all the peripherals and the wireless internet connection. I was able to download and update applications without a hitch. Great system and so much cleaner and quicker than Win XP on the old machine. Then the system was shut down and lay idle for three months.When I fired it up a couple of days ago, all seemed normal except I could no longer access the internet even though the wireless network icon showed four or five bars. I first discovered the problem when I tried to update though Update Manager and noticed that 22 identified files could not be fetched. Neither Firefox, Skype nor Goodgle Earth can connect.

The router is a Linksys WRT54G router that connects to the computer through a Linksys WUSB54G USB network adapter. The router serves three other non-Linux computers without a problem, including one using the same model network adapter.I don't have much experience with Ubuntu, but this is some of the information I have been able to generate.

I tried a few of the recommendations found in other sites, but nothing seems to do the job. I am perplexed because everything was great until I shut down the system for three months and then started it up again. I appreciate any assistance and would be happy to provide additional information as requested.

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Ubuntu :: After A Reboot Lost Network Connection Again?

Feb 25, 2010

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

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General :: Lost Connection While Yum'ing / Can't Do Now - Fix It?

Dec 3, 2010

I was using yum to update a server, then my putty session to the server dropped.

I reconnected, and now when i try to do a yum list updates, i get the following message:

Another app is currently holding the yum lock; waiting for it to exit...
The other application is: yum
Memory : 42 M RSS ( 53 MB VSZ)
Started: Fri Dec 3 12:05:30 2010 - 06:55 ago
State : Sleeping, pid: 21762

Does that mean its still installing the updates i asked it to, and i just need to wait for that to finish so i can see what updates are left? or am i really in a bad spot now?

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Ubuntu Networking :: Lost Internet Connection - Now Can't Get It Back

Jan 23, 2010

I am running ubuntu 9.1 on a Dell Dimension 2400. After installing ubuntu on the pc, it was automatically recognizing my router and connecting to the internet fine via ethernet. Then, my roommate unplugged the router and it won't recognize it. I can't access my router settings, and ubuntu is recognizing it as "inactive" but every other computer in the apartment runs fine. My PC uses a broadcom ethernet controller, and my router is a Linksys wireless N.

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Ubuntu Networking :: Connection Lost After Router Restart

Aug 11, 2010

My ISP pushes software updates occasionally to my router. This also forces the router to restart. When the router restarts, my ubuntu box loses its network connection and does not automatically restore it after the router comes back online.How can I configure ubuntu to restore the connection once it is available again? It happens on my windows workstation...I am using ubuntu on a box with no screen / keyboard / mouse it serves as a fileserver and I remote desktop in. Obviously if the box drops the connection it is a major annoyance. I am using version 9.10

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Ubuntu Networking :: Lost Wired Connection After Resume?

Jun 27, 2011

So, when I booted up, the wired connection was automatically detected and in use. Whenever I suspend my computer and then resume it later I lose the wired connection. It is detected (seen) by Networkmanager, but I can never connect. I found a way to restore the connection, but it is manual and I was wondering if I could automate this process every time I resume. Details follow:

Laptop: HP dm1z, Natty 64bit. ethernet card:

Code:
#lspci|grep Ethernet
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)
Likely culprit (according to dmesg)

[Code].....

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Ubuntu Networking :: Lost Internet Connection When Upgraded 8.04 To 10.04?

Jul 25, 2011

I was running 8.04 and my internet (Comcast) comes via a Motorola SB5100 cable modem then into a Netgear router then into my Dell. When I upgraded to 10.04 yesterday, I lost the wired connection. The wireless connection still works fine, but I have not been able to get a wired connection. Also, most online solutions reference the Network Manager, which is nowhere to be found.

Anyone have any solutions? I would be willing to revert to 8.04 if needed, as that worked fine, and obviously I quite regret the upgrade!

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Ubuntu Networking :: Lost Wired Connection After Update

Sep 1, 2011

After I updated ubuntu 10.04.3 and restarted my PC, something weired happend and my wired connection was completely lost. I tried different things but it seems that I have lost my ethernet connection. I only have ethernet card and the interface was set to eth0 which is not recognized anymore.

The /etc/network/interfaces includes the following commands, which btw I tried to play with a bit by commenting and uncommenting the lines but was not helpful (but this is the original one):

Also in /etc/udev/rules.d I deleted 70-persistent-cd.rules hoping that it would be automatically regenerated but it did not,

Here are some messages I get :

lspci:

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Fedora :: Lost Password And Connection?

Oct 13, 2010

I just got my computer up and running after several months of not working,nd have forgotten my password for the command prompt. Any help on where I could possibly find it. :/ odd question I know and I apologize. My second question is Im trying to use my android driod phone as a modem for the internet, I will be using the pdanet app so I am able to do this, yet during installing it on my phone it asked me if I was using a 32-bit windows

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OpenSUSE :: KDE Hangs When NFS Connection Lost

Jun 16, 2010

I have a server which is located in the basement. The server exports a few directories which I mount on my desktop using NFS. From time to time, the connection gets lost. The server is also not always on. I can't change that part, so I worked out a script which notifies me when it's going down, and when it's back up again. It also mounts everything back. However, As soon as I loose the connection, my desktop seems to be gone. KDE doesn't work, but I can use a few applications like Konsole, google-chrome, firefox, stuff like that. But the plasma-desktop around it hangs. As soon as the connection gets back again, everything works. I have this issue only when my desktop is running while I loose the connection to the server. If it's down when I start my desktop, everything works properly. Unless the server comes alive, the nfs directories are mounted and the connection is lost again.

My hardware:
linux-bbdu:~ # lspci
00:00.0 Host bridge: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller (rev 02)
00:01.0 PCI bridge: Intel Corporation 82G33/G31/P35/P31 Express PCI Express Root Port (rev 02)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01) .....

My kernel:
linux-bbdu:~ # uname -r
2.6.31.12-0.2-default

My linux distribution:
linux-bbdu:~ # cat /etc/SuSE-release
openSUSE 11.2 (i586)
VERSION = 11.2

My KDE version:
linux-bbdu:~ # kde4-config --version
Qt: 4.6.3
KDE: 4.3.5 (KDE 4.3.5) "release 0"
kde4-config: 1.0

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Networking :: Connection Lost To Gateway?

Oct 8, 2010

recently i have combined 2 machines into 1. after doing this, the ping to the new machine stops, for no apparent reason, and consequently all traffic to/from the machine also stops. when using the two machines individually this never happened.Lastly, if i restart the network, it kills everything (like the network just wont restart - it reaches the last interface and hangs), and if i reboot the machine, it seems to be fine for about 3-4hours.has anyone seen anything like this when connecting a large number of hosts to 1 gateway, using linux as the router?

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Networking :: Lost Wireless Connection

Aug 5, 2010

I used to be able to connect to the net using my laptop {Ubuntu 9.10 on Compaq nx7400.}by means of wi-fi . I do not know what I have done but I lost the facility to connect to the net.I noticed the Network Manager disappeared from the notification area. I manged to put it back. It detects the signal from the router and after entering my password it displays Connection Established but I still cannot access the net and does not load any web pages. I have the same Ubuntu 9.10 Desk on a memory stick, when I use it on the laptop it works fine.

I enclose a screenshot of iwconfig.I did sudo lshw -C network and it shows DISABLED. How do I enable it ? Are there any other info that I should supply and what and how.

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CentOS 5 :: Lost Connection After Some Minutes?

Apr 1, 2009

I have just installed a 5.2 centos under vmware ESX 3.5 as Virtual Machine and it works fine but ... after some minutes .. if I have opened a remote ssh session for example ... it is close .... and if I have running webmin ... it suddenly close

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Ubuntu Networking :: Lost Connection To Network Printer - Re-establish It?

Feb 12, 2011

I have had long term access to a networked HP Photosmart printer but now I get the following message:

Unable to open device hp:/net/Photosmart_C5100_series?ip=192.168.0.161.

when trying to access it.The ubuntu desktop is wired to the router as is the printer and another iMac wirelessly can still print to the HP. HPLIP status shows the icon for the printer but with a red x indicating no connection to it.The only recent network change was the removal of another router from our network. (service is DSL via a combo modem/router from service provider which previously was connected to a Dlink router which has now been removed from the chain b/c was redundant to the modem/router)

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