Ubuntu Servers :: UEC 10.04 - Unable To Conect To Instance - Network?
Nov 8, 2010
I had installed UEC 10.04. It is a 2 server configuration with CC, CLC, SC and Walrus on one server and NC on another server. I could run instance of images, But when i try to ssh to the instance, it doesn't work.
It shows ssh: connect to host xxx.xxx.xxx.xxx port 22: No route to host. This to me seems there is a problem with my network connection. Pl find below the ifconfig output of the two servers:
Controller:
eth0 Link encap:Ethernet HWaddr 00:0c:29:90:95:17
inet addr:172.18.144.36 Bcast:172.18.145.255 Mask:255.255.254.0
inet6 addr: fe80::20c:29ff:fe90:9517/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
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Mar 30, 2010
I have set up UEC on a single machine 64 bit blade. I have followed the steps as per the documentation.I am using Managed NOVlan mode. I have installed the Karmic kola image. When I try to run the instance, I get an error "no resources available. Try --addressing private". When I try addressing private, an ip address 172.19.1.2 is assigned and the instance was running.
a) When trying to ping the ip, error displayed that the host is unreachableb) I am also unable to connect to ubuntu@172.19.1.2 using ssh. Error message is displayed that " No route to host".I have searched the forums but couldnt find any solutionPS: I suppose everyone is very busy. I see very limited responses to posts. Sharing your experience and expertise will be helpful for all and will reiterate the meaning of ubuntu
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Apr 14, 2010
I have setrup Ubuntu Enterprise Cloud on a single machine.
1) I am able to run the instances from store (karmic) On running the instance two ips are assigned (public and private) as 10.B.C.X and 172.19.1.2
2) I am able to connect to the instance (10.B.C.X) through ssh (using key)
3) However I am unable to access the instance outside the UEC (using public ip). When I try pinging, I get an error Request timed out or sometimes Destination host unreachable.
4) I have provided the following access using euca-authorize
Details below:
1) Hardware : Blade (64 bit)
2) Version : Ubuntu 9.10; Eucalyptus the one using apt-get install eucalyptus
3) Topology : Single physical system
4) Mode : Managed no-vlan
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Feb 15, 2010
I have KDE 4.4 and Firefox 3.6. Whenever I click a link from a plasmoid widget, it tries to open Konqueror and another instance of Firefox. The page actually loads in the opened Firefox window, but the task bar shows an instance of Konqueror and another instance of Firefox, that keeps loading for a while then close. See image below:
I currently have setup the browser default application as "firefox". If I set this option to use the default application, it opens in Konqueror and I don't see additional windows in the task bar. If I change the option to "firefox %u", then it exhibit the same issue, but the process is much faster, so the loading windows don't stay for long in the task bar. Additionally, it opens the link on a new Firefox window and opens the page twice. Although Konqueror is not loaded, the bouncing icon next to the mouse pointer shows up and stay for a while.
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Feb 10, 2010
I am running Ubuntu Enterprise Cloud on two PCs, one as Controller, one as a node. I have downloaded two Ubuntu virtual machine images from the Ubuntu Enterprise Cloud Store and can successfully start instances of them with: euca-run-instances -k mykey emi-XXXXXXXX -t c1.medium
If I run this command I can see the instance is running: watch -n5 euca-describe-instances
I can ping the IP address of the VM instance from my Controller but I can't make an SSH connection to it. I'm following the instructions @ [URL] so I have tried connecting with: ssh -i ~/.euca/mykey.priv ubuntu@192.168.1.250
The result is: Permission denied (publickey).
If I try adding -v to the ssh command I get:
OpenSSH_5.1p1 Debian-6ubuntu2, OpenSSL 0.9.8g 19 Oct 2007
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
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Mar 24, 2011
I need to set up an ubuntu 10.04 instance on ec2, but there are some instance ready available I tried with few but I am not really happy with that since those are meant for test puporse.
I have to deploy a java/j2ee based web app with mysql. 1)need to install tomcat 2)java runtime 6 3) apache web server
What would be the best image to use for my requirement and I initially planning to launch with the micro instance if my web app demands I may further move to small and larger instances. So it should be eligible for free usuage tier.
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Dec 28, 2010
Hi. I need to create second mysql instance on the same server but another port. What is the right way to do that?
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Mar 16, 2010
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Jun 23, 2010
I've got my first EC2/cloud instance of Ubuntu up and running. This is my first time really dealing with the server edition. I've loaded Apache, Tomcat, PostgreSQL, and Webmin. I've got a public IP on the instance and it is working. I've opened, for now, ports 80, 8080, 443, and 10000 to 0.0.0.0/0.
I cannot get into Tomcat Manager or Webmin at all through a browser. For Tomcat, I've restarted, stop/started, and verified that Tomcat is running. I installed Webmin all through apt-get commands so any dependencies should have been installed (first time doing it this way), but cannot get to the login screen. But if I just go to the IP, Apache goes to the "It Works." splash page. Did I miss some set up? Is there an internal firewall in Ubuntu Server edition that needs to be set?
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Nov 23, 2010
I have installed vsftpd. When I run the command sudo service vsftpd restart, I get the following response: restart: Unknown instance. But if I run the command sudo service vsftpd start, I get the following response: vsftpd start/running, process 3804. To understand what is happening, I run the command ps aux | grep vsftpd, I get root 3805 0.0 0.0 27120 620 ? Ss 14:00 0:00 usr/sbin/vsftpd.
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Sep 16, 2010
I have a few different Linux servers with samba shares on each of them. Is it possible to administer each of the servers from one SWAT instance?
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May 19, 2011
I'm just trying to do simple name-based virtual hosting (different domains/content, same IP).
What I've done is uncomment the "NameVirtualHost *:80" line in listen.conf. Then I have one file "domain.conf" in vhosts.d/ with:
Code:
<VirtualHost *:80>
ServerName www.domain1.com
DocumentRoot /srv/www/htdocs/domain1
<Directory "/srv/www/htdocs/domain1">
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Jun 19, 2010
I am able to ftp the root of my EC2 instance of fc12 with a private key. However, I am unable to ftp a user account on a EC2 instance of fc12.I do not know what commands were given to fc12 to create an AMI that uses a private key instead of a password.As root administrator I like it. However, I am trying to set up users in such a way that Windows users using "My Network Places" can access my EC2 instance of fc12. I have created accounts for my users and set a password for each of them (useradd). The problem is that I am unable to ftp the fc12 server with the user name and password. The error message the client gets when it tries to do so says there is no supported authentication method available. I presume I must somehow change server security or something to allow access to users with passwords but I do not know how to do this.
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Dec 14, 2010
On a Debian Linux box, SVN Server is installed. In the partition where SVN was installed, Free disk space is causing anxiety, hence started creating new instances in a new partition, though I am able to get the first screen (it prompts for username and password), I am unable to login even though the username and passwords are correct.
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Sep 13, 2010
I have s smtp configured server , the problem i am facing is that i am not able to sent emails to some domains for instance yahoo.com or ymail.com rest all domains the email goes through
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Apr 5, 2010
I am using Ubuntu 9.1 and want to connect to my other computer (win 7) on my home network. I installed Samba...and it sees the 'windows network'...then it sees the pc I want to connect to, but when I try to dbl click on its name, I get 'unable to mount location, failed to retrieve share list from server'. There are at least 8 publicly shared folders on that PC that other Windows pc's can connect to without problem.
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Apr 28, 2011
I want to know how to conect to intrenet ubuntu 6.06 version via ethernet cable and wireless through modem THOMSON99BC4C on asus notebook.
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Jan 17, 2010
This is a follow-on to "samba write failure crashes linux". It has the dmesg output when the write failure occurs.The remote server is os/2 v4.50 fp3.The failure occurred in this instance attempting to write a file from the localhost to a samba-mounted resource on a remote host. The failure always happens when at least 3 MB have been transferred. Smaller files are not a problem.
Other cases:
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The most notable aspect are the phrases "kernel BUG" and "invalid opcode".
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Jan 9, 2010
I have a problem configuring my PostGreSQL server for internal network access.
I want to be able to access my postgre server from 192.168.1.10
It works when I set listen_address to *, but if I input 192.168.1.10, or any other IP address, I always get:
Quote:
WARNING: could not create listen socket for "192.168.1.10"
FATAL: could not create any TCP/IP sockets
postgresql.conf section
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Aug 13, 2011
I've installed the Ubuntu 10.04 Server onto a PPC G4 Mac just for the experience of setting up a server. During the installation process Ubuntu couldn't auto-configure my DHCP Network. I'm using the airport card on a wireless network. How can I manually configure the network once Ubuntu is installed.
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Feb 25, 2011
I've installed Ubuntu Server 10.10 with two network cards. One for external, and one internal.My problem is that as soon as i activate eth1 (external), i can't access the server from the internal network (eth0)
With these settings i can't reach the internal network from inside.If i disable the gateway on eth1 and enable the gateway on eth0, it works.
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Jul 27, 2010
I just switched from Ubuntu to Fedora 13 because I was unable to get Ubuntu to connect to wireless networks. I tried everything suggested in help and forums, and kept getting "Bad Password" with WICD and Network Manager. Now, with Fedora...I still can't connect.
Problem #1: The guide says to "...make sure that the relevant wireless interface (usually eth0 or eth1) is controlled by NetworkManager," and that I do this via: System>Administration>Network
However, there is no Network option under System>Administration.
Problem #2: I open Network Manager, which displays a list of networks. I click on mine, configure it with WPA and the right password, and it fails to connect: "The network connection has been disconnected."
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Jun 1, 2009
I am trying for the last many days to setup my opensuse 10.3 as Samba PDC Server according to the URL mentioned below, but in vain:How to setup SUSE 10.3 as Samba PDC - openSUSE When ever I try to join a Windows XP machine to the domain setup on Opensuse, I get the error:'The following error occured while attempting to join the domain. The network path was not found'. What could be the reason for this error despite of the fact the I am able to ping the FQDN of the PDC from the XP machine, but the XP machine simply denies to join the domain because of the above mentioned error.
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Apr 4, 2010
I recently installed OpenSUSE 11.2 and everything works fine except wi-fi card, of course. The problem is that after installation the system recognized the card (is was listed in network devices in Yast) but I was unable to enable it through network-manager applet. Though the device could make scanning through terminal (found article in docs but didn't fully understand wpa_gui). Then i was stupid enough to delete the device from Yast list to try to reinstall it. So the problem is that i simply can't do this cause i see no way to re-detect. That is the goal is to at least turn back to post-install system state and try to enable wifi card again.
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Jul 17, 2011
I installed openSUSE on one of my work system. The network port wasn't working when I was installing, but works fine now (checked in Windows). But for some reason, I am not able to configure the network. I used both Dynamic and Static IPs (both work fine in Windows) but still no go. I am using Yast Control Center for this purpose. I can't even ping the default gateway when I am using custom settings. When I use dynamic settings, it says Unreachable Network.
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Aug 9, 2010
I am using OpenSuse 11.3 and Network Manager is giving me a headache by not connecting to WEP based wi-fi network.It works in a wi-fi at my office while at my home, it shows / detects the network but keeps asking me over and over.
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Jun 8, 2011
I am having a situation where I couldn't connect to Internet through wireless and LAN cable. I have done ifconfig, it only shows me "lo" info. May I know how can I bring up the LAN and wireless?
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Sep 6, 2011
I'm going to come right out and say I am a complete novice with Linux/SUSE. The equipment I'm having a problem with is a little web-server that was purchased by my employer that has, quite suddenly, stopped functioning. I was changing the IP address within YaST, at which point the device offered to update itself, which I saw no harm in. Post-update, however, I was unable to so much as ping the device.
I tried "ifconfig eth0": "Error fetching interface information: Device not found." I went into network settings via YaST and found that there are two cards now listed as: RTL8111/8168B PCI Express Gigabit Ethernet controller Both IP addresses are "Not configured". The information pane, for both cards, cites:
RTL8111/8168B PCI Express Gigabit Ethernet controllerBusID : 0000:02:00.0 Unable to configure the network card because the kernel device (eth0, wlan0) is not present. This is mostly caused by missing firmware (for wlan devices). See dmesg output for details. The only difference in either of the cards is the BusID (0000:02:00.0 and 0000:03.00.0)
I can neither edit nor delete either of these cards. As I mentioned, I am a total Linux novice, and am at a total loss for what to do next, or even how to find critical information about the system itself. I know enough to check dmesg, but not enough to have any clue what to look for in the output.
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Dec 16, 2010
Problem with my Internet connection. I can't connect to the update servers. I don't know why. It's a brand new installation, not a week old yet. I can't install the support for restricted media for example. The servers won't refresh in YaST. It tells me it can't download the repomd.xml.asc.
The other problem is that some servers on the web won't load for me either.
For example, I get most of my local news from The Toronto Star, and I can't connect to it's website at all.
I can from Windows (I dual boot) but not SUSE. I don't think its a problem limited to that one website either. I am able to connect to most websites though.
This is the result of zypper repos -d
Code:
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Feb 22, 2010
I am running OpenSuse 11.2 on my desktop here in the office and when I download anything, other users are complaining over very slow internet speeds. My download speed seems to be the same as other users using Windows, but downloading from a windows machine does not cripple the network. So is there something in my network setup that can be tweaked so that I do not cripple the network when downloading ?
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