Ubuntu Networking :: Suddenly Lost Ability To View Webpages
Apr 3, 2010
I should have poked around a little harder but I remember that I was experimenting with an ssh proxy when a the hotel. Apparently when I setup the proxy settings in Chrome I must have clicked the "set system wide" button and set every browser to browse through the proxy. I even had to enter a password to change that setting. I thought I changed it back after experimenting but apparently I did not. Today I just started my Ubuntu 9.04 laptop to find that I can not browse web pages. I tried multiple browsers including Chrome, Firefox and Epiphany. Each one gives me the same error message:
Epiphany:
"www.google.com" dropped the connection.
The server dropped the connection before any data could be read. The server may be busy or you may have a network connection problem. Try again later.
Firefox:
Connection Interrupted.
The connection to the server was reset while the page was loading. The network link was interrupted while negotiating a connection. Please try again.
Chrome:
This webpage is not available.
The webpage at [URL] might be temporarily down or it may have moved permanently to a new web address.
So now most of you are ready to ask me to check my connection using ifconfig etc. But here is the rub: I can download updates, install software using apt-get, ssh, scp, download files with wget, ping web sites and browse the net using the text browser Links (so pretty much everything else works.) I cant figure out what has happened. The last time I used my laptop was this past weekend in a hotel using their wireless and then connecting using a captive portal. And everything worked fine.
My only theory is the hotels captive portal might have messed up something but what that is is beyond me. I tried using both wired and wireless connections and still the same thing. Re booting does nothing. So in order to surf the web I have to use my virtual box Windows XP image. So here I am typing this message in Firefox on windows XP in a virtual machine on my Ubuntu laptop that for some reason will not let me view websites.
I have installed F10 x86_64 on my laptop with the intent of having a few VM guests under qemu/kvm to run test machines for my code while at a week long class. At home, hard wired to the LAN, my DomU's connect the internet just fine. Perhaps not exactly the way i want, but it worked. Now I am at the class and I've had to connect via wireless network. My DomUs CAN resolve URLs to IPs, but I cannot connect to the web to view any basic web pages.
Attached are screeshots showing my #ifconfig and #route
On a school network the Windows and Mac computers connect to the internet with no problem. The Ubuntu(10.04) computers are connected and work on the internal network but have major issues going out of the building. I can get to one or two webpages to open and the connection dies...Server not found. Ping within the network and there are no lost packages, if I ping outside many lost packages.
We are using SonicWall and think it could be blocking...but why only Ubuntu? This is the same behavior for Firefox and Seamonkey. It's also the same for the thin/fat clients and standalone units. I did try a fresh install with no effect. The internet actually works on the one machine with ubuntu 9.10. I brought a machine home and it connected to the internet with no problem.
Two things I can think of that would of caused this are: 1- we keep getting windows about missing applets, someone may have clicked delete 2- I connected a server to run fat clients w/ LTSP and discovered my server and the schools were handing out the same ip's.
Some time yesterday, I lost the ability to ssh my remote server, or even visit any webpages it hosts.
I've explored hosts.deny, /var/log/secure and even turned iptables off to see if it would fix anything. To no avail. Here's what my ssh login attempt looks like:
So I have a laptop that I installed 9.10 on recently and for a bit everything was going fine. I have done a few updates over the course of the past week and for a couple days now I have got a huge problem. I am unable to view web pages without having to refresh them over and over until it finally loads. I thought this issue was only with Firefox and I researched the issue and ended up disabling ipv6 in FF. To no avail.
Synaptic Package Manager also will not connect to the internet. It will receive the list of updates but as soon as I click install it sticks on Downloading File 1 of XX. Since it wasn't limited to Firefox and there is debate on whether ipv6 slows down connectivity, I have disabled it system wide. Also to no avail. I have confirmed this to be so with wired and wireless connections to my router.
All of a sudden without rhyme or reason, My Lucid Lynx install stopped connecting to my network. This was without any intervention from me as I did not modify install or change anything prior to this happening.
What I have gathered so far is that upon initial boot eth0 seems to always be disabled. So I ifconfig eth0 up to bring it back online. All the settings in the network applet seem to be intact for my manual network that has DHCP disabled. Let me re-iterate that these settings worked fine for months then all of a sudden something went belly up. The same machine will connect fine with the same settings from within Win7.
ifconfig command shows both eth0 and the loopback interface but eth0 never manages to secure the 192.168.1.3 address that it should have. ping 192.168.1.1 returns "Network unreachable" so it appears the connection is being cut off at the machine and not the router. I did check to make sure the connection was even recognized and it sees the wired connection going to the router, but nothing else.
/etc/network/interfaces only shows two lines regarding the loopback interface and nothing else; eth0 seems non-existant within this file which I find odd.
I installed Fedora today, and I automatically had internet connection, I never had do configure anything myself. Then, I was playing around with VPN for a good while (trying to set up the VPN connection to my University), and now, I suddenly lost my connection to the internet!
But only Fedora can't connect anymore, the Windows PC has connection as well as my Mac OS X (I dualboot Linux on my MacBook). The Ethernet connection works as well, when I unplug the cable, Fedora gives me a message, but I just don't get into the internet!
Does anyone have an ides what I have to do? I don't know anything about network connections and I'm new to Linux...
I already restarted the Computer, but that didn't work, and Google didn't really held either.
I thought to uninstall Gnome Network manager since it was always asking for to connect with wireless internet but it was working fine with wired internet.I uninstalled it and installed wicd. and then for some unknown reasons the internet disappeared.Kindly let me know How can i get back network manager without having internet and make internet work on my computer.I did searched a lot on Ubuntu forums using somone's else computer but no success.So if you let me know how to approach the problem in right manner it shal be great .
Is there an option to open a random picture with feh to be able to view all the pics in this directory with left and right buttons? To do that I need to open this particular directory with feh. But what about opening a picture? For me it's more convenient because I have this assotiation in dolphin and it's not the best way to open a dir with feh in dolphin. I just click an image and dolphin opens it with "feh -FY". I was looking through man feh and found nothing.
I've been running Jaunty on my drive D: with XP Professional on a separate partition. Today I formatted a different drive, C:, which had previously shown up in GRUB as XP Home Edition, and placed a new XP Professional on it.
Now when both HDs are connected, C: boots without GRUB starting, and when I disconnect C:, the GRUB on D: starts, but cannot find the XP Professional NTDLR. I don't want to take up too much of anyone's time here with this; I'm mostly just curious as to what may have happened?
I've been using 10.10 for almost a year with no problems. Then last week I plugged in my MP3 player (ONDA vx777le) and it did not automount as it usually does. I have since found that any USB stick will not mount any more either. They show up in lsusb
Code: ken@ken-desktop:~$ lsusb Bus 005 Device 002: ID 046d:c517 Logitech, Inc. LX710 Cordless Desktop Laser Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub .....
I also see this in messages when I plug it in: Code: Apr 17 01:40:21 ken-desktop kernel: [24379.152035] usb 1-4: new high speed USB device using ehci_hcd and address 14 I'm assuming This happened with some update but I don't know what one.
I wanted to update to the latest ubuntu but was short a couple of gigs in my linux partition. So i created a Gparted Live bootdisk and repartitioned my hard drive: i took 5 gigs from my mac os partition and moved it to the linux partition...
After that i could no longer see any boot option aside from Mac OS when starting the computer with the option key held down. So i thought maybe rEFIt might be the solution (i have no idea what i'm doing really) and installed refit. I'm not sure what that achieved - i can still only see one boot option (mac os - although it's now named 'refit'...)
I am semi new to linux and i was getting the hang of it until just recently. I'm trying to do some web design using php and mysql. In my reference material (the all in one desktop reference {for dummies}). At some point I needed to do something in /var/www but I ran into a permissions problem so I typed: Code: chgrp -v -r guy0203 /var/www 405 chgrp -v -R guy0203 /var/www 406 chown -v -R guy0203 /var/www
Afterwards in some subsequent step it suggested putting the files in /usr/src/mysql. Since I didn't have that folder I used mkdir and created it. Then I tried adding the files I needed to that folder and got denied on the grounds of not having permissions once again. So tried something like this: Code: 451 chmod 777 /usr/ 452 sudochmod 777 /usr/ 453 sudo chmod 777 /usr/
It was a 755 originally but I couldn't copy those commands. It turns out as that I had two terminals open in different desktops. one of them was a root terminal. It was at this point that realized that I was in that root terminal and decided I was done 'learning' for the day. I decided to listen to some music (which is located in my windows partion) and ran into a problem. The prompt that pops up to normally asks me for my admin PW to mount the drive. Now just vibrates like an incorrect entry was received, says authentication error and says I am not authorized to mount that drive then I went back to terminal to fix it, and when I tried to elevate myself to SU:
I got this: Code: guy0203@guy0203-laptop:~$ sudo su sudo: must be setuid root guy0203@guy0203-laptop:~$
I don't know what to do now but I think I totally killed this OS. If so is there anyway to save things if I have to reinstall?
1)I lost ability to move application window. eg, The firefox window is stuck and anchored at the upper left corner. I can still resize by dragging the lower right corner. I notice the upper right corner resize tab disappears. If open another application, it is again anchored at upper left corner and cannot be moved.
2)under Settings>Xfce Setting Manager> Window Manager, all the icons are gone. Same inside Window ManagerTweaks. I used "xfce4-panel" in terminal, it doesn't help.
Before today when I turned the machine on there was a black screen with many Linux kernels to choose from and Windows.
I created another for Fedora and installed it on there - the Ubuntu root partition is still there.
When I boot now, there is a blue Fedora screen with just it and Windows.
To make matters worse Fedora doesn't work with my graphics card (Matrox). I would like to get Fedora working but still want to have the ability to use Ubuntu again.
What do I need to change to be able to boot into Ubuntu again and how do I do it?
Just upgraded to 9.10 and lost the ability to use my scanner with VueScan. No help at their site or the Avasys Corp. site, where downloads of the "driver" refuse to load due to various conflicts. Has anyone gotten VueScan to work with 9.10 and how on earth did you do it? (Scanner is an Epson Perfection V500 Photo.)
I have recently downloaded Ubuntu 10.10 and installed it onto my laptop, alongside with pre-installed Windows XP. I'm very happy with Ubuntu and find it a lot better than many other operating systems. However, I have stumbled across a problem recently: I don't seem to be able to suspend ("sleep") the laptop and neither can I hibernate it. These options worked so far and if I remember correctly, this started when I updated my kernel to 2.6.38. Since then, I've lost the options to sleep and hibernate, and when I close my laptop lid, I get a message "Unable to suspend".
Also, a side question - why does video run so slowly on Ubuntu using VLC? This happens to me when watching .mkv videos. Many frames get skipped and there are visible artifacts, in fact, so much that the video can barely be watched. Actual FPS drops below 1, so one frame stays on screen several seconds. I tried tweaking the options, choosing different demuxers, codecs and graphics output. This happens only while running on batteries and works fine under Windows, I have no idea why. Under Windows the video is played using Media Player Classic and ffdshow, if it makes any difference.
I have a very large graphics library that I use regularly, but all files are in WMF format. Prior to upgrading to Ubuntu 11.04 (was previously on 10.04), these files would preview in Nautilus, and GIMP would automatically convert them when they were opened.
Now, these files no longer preview in Nautilus, nor do they open and convert in GIMP. Package libwmf0.2-7 is installed.
I'm relatively new to Linux. My netbook ran updates yesterday for Ubuntu and now I am unable to reconnect to wireless network connection. I am using WPA2 encrypted security. I am able to connect via wired LAN. Also, when I went to connect using USB mobile connection, I get an error "unable to mount location". I get the same error if I try to connect my external CD drive. I am using Ubuntu 8.04 with Gnome desktop (2.22.3) on a Dell Mini 9.My wireless device is using Broadcom STA Wireless driver for an 802.11 wireless card.
I installed Mepis to a separate partion (shares swap) and now the option to use, originally installed, Ubuntu does not appear at start up. Is there a way get this option back?
I'm relatively new to Linux.My netbook ran updates yesterday for Ubuntu and now I am unable to reconnect to wireless network connection.I am using WPA2 encrypted security.I am able to connect via wired LAN. Also, when I went to connect using USB mobile connection, I get an error "unable to mount location". I get the same error if I try to connect my external CD drive. I have tried to force mount but no luck.
I have lost my ability in KDE Menus to do a shutdown or restart. My only option is to logoff or cancel. This started occurring about 2 weeks ago, possibly 2 KDE workspace updates ago. I have been assuming it would get fixed with an update but so far it has not.
I am running Fedora 10 x86_64, kernel = 2.6.27.7-134.fc10.x86_64, and the KDE version is:
I have 3 different systems all running the same OS and KDE versions and it is happening on all 3 systems. All systems have the "Offer Shutdown Options" selected in Session Manager. I have even turned this option off, rebooted, and then back on to try to jumpstart it but that did not work.
Additionally, I have tried deleting the contents of the /tmp directory while in single-user mode and also the .kde under my home directory. This made no difference.
Another symptom I am noticing is that any desktop widgets that I create all get moved to the upper left-hand corner of the display whenever I reboot and log back in. Any extra shortcut widgets that I add to the panel are also gone the next time I log in.
Again, these same symptoms are occurring on 3 different machines.
These symptom do not occur after a fresh install of FC 10. It is breaking during one of the yum updates but I have not narrowed it down yet as to which update is causing this to happen.
I was playing around with bash scripting and the last thing I remember doing was checking for suid root files. However now I cannot launch sbopkg, tpfand etc and the binaries are nowhere to be seen. I was experimenting with the sticky bit for tpfand so I could load it as a normal user.
Code: chmod u+s /usr/sbin/tpfand chmod u-s /usr/sbin/tpfand However now tpfand is no long in /usr/sbin. But a whereis produces the following results.
The same applies for sbopkg, which I have not touched. I think this problem is also related to the wicd error stating it cannot connect to DBus client From these symptoms has anybody experienced anything like this before from tinkering?
My wife has taken over the desktop (ubuntu 14.04 LTS). I've setup a second wireless router, dedicated to the MAC address of my laptop (debian) and using ssh I can view my email (thunderbird), but I'm not sure what to do to view woodworking videos without downloading. So, do I need to setup tunneling, do I need to view the windowmanager or is there an way to run videos? Anyway I've come along way using HOWTo's with breaking debian. Not sure how to proceed.
I'm using a wired DSL broadband connection on ubuntu 10.04,the problem is i am unable to see certain web pages in my firefox and chrome as well... some web pages aren't loading at all.. but these webpages loads in windows. eg of pages not loading [URL]
How to can I host my own domain by myself for free?I've installed phpmyAdmin, ehcp, filezilla, mySql, mySql query browser, proftpd, gforge, wordpress, activeperl.I'm not sure either how to make a domain name for my IP address and how to use dynamic DNS.
1) OK, I've got to admit that I'm a newbie in networking. 2) I'm lost with tons of different programs, I don't know where to start from now, there are many methods. I have made many user names and passwords... 3) What to do? I don't want a local web page, All I want is get my web page on Internet where anyone else can visit it.
I had actually the same problem in 10.10, but I was patiently hoping that 11.04 will fix it for me. At the moment it's facebook(nothing will load) and lifehacker(mainpage will load,but further on no news will load) First of it loads facebook after fresh install, but when i closed firefox, and reopened it, it won't load. I pinged facebook.com and it's working:S Chrome for instance loaded facebook atm, but didnt load lifehacker news aswell. Altho Windows on same machine will do it perfectly. I would like to use 100% ubuntu, but its not possible if some essential webpages won't load
When the installation had finished I had no Internet access on the computer.Or..it's not exactly NO Internet access - I am able to enter Google (at least that's the only one I've managed to enter - And yes, I've tried more than one..). Furthermore, I am not able to update the system..
For starters:
The computer is running Ubuntu 10.10 64-bit
I've attached the output of 'ifconfig -a' Other than that, I don't know what information will be relevant, so please ask for whatever is needed to (hopefully) get this to work
I made the mistake of creating a new user account and deleting the old one in Ubuntu. Now I can't connect to my wireless network. I think that I have the correct drivers installed, but I am unable to see (discover?) wireless networks and don't even have any wireless options in the upper right corner. I am pretty frustrated with this.
I have Ubuntu 9.10 and I am trying to get my ALFA network adapter to work. It shows a few wireless locations including my brother who lives beside me. He is going to let me use his internet on my laptop. His connection is opened and I can connect to it fine... but no sites load... I've tried about 4 other open networks that I picked up and the same thing... it sometimes loads the first page but then thats it... This is suppose to be the best network adapter on the market for under $100. I have a 5dBi ant and a 2.4ghz 6dBi ant.
Oh yea, I've tired this on two other ubuntu 9.10 desktops and 1 laptop and get the same thing... I am however able to connect to my wireless router and browser the internet... but I will not have internet much longer
