Ubuntu Networking :: Firefox & T'bird Won't Connect But Can PING
May 2, 2010
I have an Acer Aspire One that worked fine with version 9.* of Ubuntu, then I upgraded to v10.1. Now Thunderbird, Evolution, and Firefox (Namoroku?) can't connect, either wirelessly or by Ethernet cable, to my ISP. I get error messages like "connection timed out" or "cannot find {link}". I can PING my ISP from Terminal, though, and I have the machine set up for dual boot with Windows 7 and Firefox works fine under Windows.
I have no idea what to look for or where to start. Any help would be greatly appreciated.
I know this is not a win-doze forum but i always ask my questions here so here goes.I am having what appears to be a DNS problem on a friends laptop. He is running windows XP. I CAN connect to networks and even ping websites but i CANNOT browse in Internet Explorer or FIrefox.
So after installing T-bird 3, I've pointed it to my old profile folder (which had a different name), and all of the settings seemed to be imported fine: I get all the folder and all of mail accounts, and also when I check e-mail, in status bar at the bottom I see how it successfully connects to all my mail servers and checks them. However, there are a lot of issues in the process:
1. It doesn't download any e-mail (but I know for a fact that there is a lot of it)
2. When connecting to every new server, a message asking me to wait while the folder is being processed pops up. Which happens even on the mail check upon the startup when it is certain that this is the first time it check the e-mail.
3. If an indexing feature is enabled, it hangs up with a message "Determining which messages to index in Sent" or something...My total e-mail folder is about 500 MBs, so it shouldn't be that bad, right?
4. But even if that feature is disabled - and that is the most important problem - all of my folders are empty!
I am using an virtual machine. where I need to ping from one machine to another. earlier I was able to ping. But after going to google.com once, I cannot ping back to this machine.
But if I gave ping -I eth1 <IP> then I can ping.
I cannot install any package, so tell me solution which includes not installing any package.
I have installed openvpn on an ubuntu 10.04 server. I run 11.04 on my desktop. It can connect to my VPN server. The problem is, I have ZERO internet access. I cannot even ping an IP address.
Background: In attempting to move from XP to linux, I have a F14 live USB stick -- can boot Dell M6400, see the internal drive and USB sticks. Wired ethernet network is seen only if ethernet cable is plugged in before booting. Then, I can ping sites by name (yahoo.com, google.com) -- however, FireFox does not load any web-page over the internet -- it does not put up an error message either, it just keeps waiting (it is in on-line mode).Info on the system
uname -a Code: Linux localhost.localdomain 2.6.35.6-45.fc14.x86_64 #1 SMP Mon Oct 18 23:57:44 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux [code]...
Ubuntu and after installing it i can't browse any internet through firefox although ping is working good and downloading plugins to system to run MP3 or videos is also working fine but can't open any website through firefox and i tried the live cd of Ubuntu 10.4 at other PC and internet was working fine and firefox was working fine
I'm having a strange problem with my Fedora 11 install under VMWare Server. I can look up hosts in nslookup, host, and I can ping servers using their names, but when I use curl, firefox, or yum, it says it can't resolve the host name.
i'm running some virtual Fedora installations on a windows server 2008 with hyper-v. Most of them are Fedora 12 and 13. Everything works fine for some years. Yesterday i want to upgrade a F13 machine to F14 by netistall. The upgrade ran without any problems. After the reebot the machine was off the network. All the networkconfigs by DHCP are OK, IP address, gateways, DNS settings and so on. But the machine can't ping or connect to other hosts. I tried an VM from scratch with both F14 i386 and x86_64 - same ****. This is the first time i had such a problem by upgrading Fedora machines.
I have a box that I installed Elastix on as I'm trying my hand at Voip and Linux. I'm basically very green when it comes to Linux and the console. As I was following a guide @ engineertim.com to securing the box, it asked me to: wget [URL], But I get: Resolving engineertim.com... failed: Temporary failure in name resolution. I searched around and tried configuring resolv.conf to no resolve - :) unintended pun
I changed /etc/sysconfig/network to include GATEWAY=192.168.1.1 From the internet I have a modem-192.168.2.1, a telecom voip box-192.168.15.1, and then my router 192.168.1.1 I'm able to ping machines attached to the router but nothing beyond that. I tried to get the results for ifconfig via putty on this machine but it says command not found. I can get it when I log in at the box in question though.
Tried turning firewall off, i tried port forwarding tcp port 22, but it still doesn't work. Also am unable to ping modem over WAN, i can ping the modem locally though. Tech support claims pinging and ssh is not part of the internet so they wont support it in any way.
I just setup a new LAMP server (CentOS 5.5 x86_64) box with channel bonding on NetXtreme II BCM5709 Gigabit Ethernet (IBM x3650 M3). The problem is I wasn't able to connect to this server when I'm in different VLAN's. This server also unable to ping different VLAN's. But everything works fine when I transact in the same VLAN.Here's the config:
As the title suggest, I have downlaoded the latest copy of Ubuntu Server from the ubuntu website.Everything installed fine. DHCP configured ok as far as I can tell. I can ping other machines on my network (which are running Windows) and they can ping the Ubuntu machine and conenct to Apache which is running on it.If I try to ping google.com or any other domain, it gives the correct IP address but gives no response to any pings, dont telnet on port 80 (or any toher potr for that matter) on any machine on the internet. I checked the settings using ifconfig to see what DHCP had assigned, and they matched the windows machines configuration (other than the IP address obvisouly). I tried assigning a static IP, even reserving a particular IP for my NIC.
Whatever I do, i cant connect to any machine outside the network via IP or domain.I have searched everywhere and tried everything i can find on the net but still to no avail.The Windows machines are part of a domain called alcom-uk.local and run off of a Windows Small Business 2003 Server. Not sure if i need to manually setup Ubuntu to connect using a domain or anything.
I've only been using linux for a few days so I don't know all the tricks. I'm pretty savy configuring windows networks however.My adapter is (according to windows) a: CNet PRO200WL PCI fast ethernet adapterLinux says it is a: 21x4x DEC-tulip compatible 10/100 EthernetI do seem to be getting an ip address from the DHCP router, but I cannout ping any other ips or connect to the internet.I've tried a bunch of different options, switching things back and forth, but it still doesn't work, and honestly i don't even know what some of the options mean.
ALSO, if this helps: paladin:~ # ifconfig eth0 Eth0 Link encap:Ethernet HWaddr 00:08:A1:03:3C:99
I have 2 10.04 computers and one win 7 and one vista computer: The win computers can see each other and the ubuntu computers, but the ubuntu computers cannot see each other or the win machines. The ubuntu computers connect to the internet fine and can ping each other. I cannot find settings to correct.
I have two machines on this network, one running Ubuntu and the other running Fedora.
When I'm using the Wireless network on the Ubuntu machine, I cannot ping the Fedora machine. Everything else works. I can browse the net fine.
If I switch over to the Wired Network then I can ping the other machine.
I don't understand why ping doesn't work only over the Wireless. I can ping the router so I'm guessing it's getting blocked by the router but I didn't block ICMP traffic.
I tried asking on IRC and they ran out of ideas too to find out where the problem is.
I recently bought a HP laptop which is showing some issues. To make it precise:
1. I can connect to ethernet & wireless when i am at my university, which are quite good connections.
2. At my home, i share the internet with another guy. The connection is not very stable, in the sense that, sometimes the download speed is 1MiB/s, and sometime 250 KiB/s. I have a old laptop which can connect to it without any problem.
3. My new laptop can connect to it when the connection is better with download seed ~1MiB/s, but could not connect to it when the download speed goes down.
4. "could not connect" means even ping to router takes long time with 90% packet loss. But I can always get connection and ip address from dhcp although i can not ping thereafter. This is true for wired & wireless connection both. Is that a router issue? but then, why can i connect through the other laptop.
I have this annoying problem since day one.I am testing out Red Hat RHEL5, everything is fine except DNS look up.If I ping www.google.com, it doesn't work, ping ip address it all works;if I bring up browser, put www.google.com it doesn't work, can't find the name, however, simply put ip address there it works.My DNS seeting seems ok, and the DNS works from Windows box.
I just installed my first EVER bind DNS server. I am running bind9 on Ubuntu 10.04. Everything seems to be working great except one thing: If I ping a host that I have set up in bind by its HOSTNAME the pings take 5-6 seconds to reply/print to the screen between each echo response. If I ping by the host's IP address, they echo back very quickly.
I have read that IPv6 can cause this, but I have disabled it in /etc/sysctl.conf and the problem still exists.
I know everyone says this can't be a DNS issue, but this never was an issue with dnsmasq (which i was using prior), and it doesn't make sense that the ping are ONLY slow when pinging by hostname and not IP.
Configs below:
Ping by hostname - there is a 5-6 second delay between each one of the responses:
Code:
Ping by IP - the responses come VERY quickly one after the other:
So, I have an Virtual Machine running CentOS 5.4. It sits behind a hardware firewall which also does NAT'ing. I've set up plenty of these, so I know for sure the firewall and NAT rules are set up correctly. From the host, I can ping anything in my subnet and the gateway. But I can't ping anything else beyond the gateway. I can perform DNS queries and when I try to ping, it finds the appropriate IP address.But from the outside, I can ping the PUBLIC address (It's a 1 public to 1 private address NAT, not 1 public to multiple private). I've tried it with IPTABLES on and off, with no change.
I have Mandriva One 2009.0 (192.168.1.100) on one box and Mandriva Free 2010.0 (192.168.1.118) on the other. I can ping router (192.168.1.1) from both of these boxes but I can't ping one box to the other and the other way around. What's going on?.
Do I have to change some settings in router?. Or is it firewall issue on those two machines?. Both of these boxes are connected by cable. Symbol of the router: TL-WR340G.
have had a problem with my ubuntu system recently in that it will only let me connect to the Internet through Firefox if I switch network.dns.disableIPv6 on. How do I do the equivalent in Ubuntu to enable me to use Ephiphany etc which are not working anymore
I have just installed OpenSuse in a brand new desktop. I have got no problem at the installation process. Somehow, I still could not get my firefox to browse internet.I set the network configuration by applying the IP Address, Subnetmask, Standard Gateway etc. I can ping, both internal network and external network. So, I assume, there is no problem exist in relay and accept data.Still, I can not browse using firefox.I could, indeed, open the website google.com, by typing http://74.125.43.147, but can not proceed if I typed
if config = eth0 Link encap:Ethernet HWaddr 00:24:1D:C438 inet addr:192.168.1.57 Bcast:192.168.255.255 Mask:255.255.0.0
When I'm trying to access my site using Firefox I get this error: "Unable to connect
Firefox can't establish a connection to the server at mysite.com.
-The site could be temporarily unavailable or too busy. Try again in a few moments.
-If you are unable to load any pages, check your computer's network connection.
-If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web."
Then I tried to access my site using Opera and Chrome but I get the same error, that the browsers couldn't connect to it.
The site to which I'm trying to connect is definitely up. (I ask a few people and they can access it and I looked at [url] and it says that my site it's up)
In all but one place my HP Pavilion laptop running Fedora 14 will work flawlessly to use the Internet for e-mail, ftp, http, etc. In one network there is a wireless router - Cisco/Linksys E3000 - that allows every computer to use the Internet normally for wireless or for wired connections, every computer but mine. If I use Google's Chrome I can access the Internet. I can ping any web site too, but the moment I try to access anything with Firefox 3.6.17 there is a long delay and the standard error page appears. Weather or not I use a wired connection is apparently irrelevant.The Windows 7 computers in the same network are free of this curious problem. Strangely I have noted a problem like this, possibly the same problem, with another network at a coffee shop and they both share the misfortune of using AT&T, which is proud to not support Linux ... for customers of course (it's good enough for themselves I'm sure)
think I have a quick question about outgoing server, how do I change the port number, I don't see an option for it anywhere. I kept getting this error when I try to send an email.
Code: Sending of message failed. The message could not be sent because connecting to SMTP server smtp.live.com failed. The server may be unavailable or is refusing SMTP connections. Please verify that your SMTP server settings are correct and try again, or contact the server administrator.
Cannot connect to internet via Firefox or Midori on my Dell Inspiron 8200 laptop with a Netgear wireless card. However, I can update via yum, I can ping google from the CLI, I can ssh to my desktop, I can point a browser to find my router which /etc/resolv.conf points to, but can't get a browser to resolve hostname. I'm posting from a different machine (desktop), here is my /etc/resolv.conf:
