Ubuntu Servers :: UEC: Unable To Ping And Connect To Instance?
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
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
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
I'm trying to run Debian server in our network. We have SSG5 Juniper Firewall set up to route traffic from our trusted network 192.168.50.0/24 to our DMZ 93.153.125.224/28I can connect / ping all Windows servers which are in DMZ. When I try to connect my Debian server instead of one of the server's static IP I'm unable to connect or ping to it. The server itself is able to connect to internet resolve DNS if I allow connection to our trusted network I'm able to ping or connect to any computer in trusted network but still unable to ping from trusted to DMZ. The SSG5 policy is set up to allow any connection from trust to DMZ and interface is set up to route all traffic.I have tried to trace the ping It'll go through firewall right to the interface needed but then it'll time out as like the server is not connected at all.
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:
I tried to install vsftpd on my server and while the installation went fine, I can't run
Code: restart vsftpd As I the get error Code:
restart: Unable to connect to system bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory Though I'm able to restart the service with
sudo /etc/init.d/vsftpd restart with a warning telling me to use the service utility. Not only that, but despite the port being open it won't allow me to log in, it just hangs, and I have local users enabled (I've used the default .conf file). Does dbus not come installed in 10.04, and if I did install it would it make a difference for restarting the service? Are there further steps needed not available in the tutorial on the Ubuntu Server Guide for 10.04 to enabling local user authentication? -edit- Figured it out, dbus wasn't installed, vsftpd is working fine now.
I install and configure the vncserver following and reading 1000papers, but all of this present the same problem; when i try to connect to my vncserver,recive this mesage: unable connect to socket: No route to host (113) The OS version is Fedora Core 14 and tigervnc-server i try different solutions including:Allow TCP connection modifing files /etc/gdm/custom.conf and /usr/share/gdm/gdm.chemas Disable SELinux removing iptables Here follow the vncserver configuration:
[code].....
The ip address of the vncserver is correct because i can do ssh on it. Where or what can i do?
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 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.
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 *
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.
I am running Ubuntu Server 10.04.01. When I try to start the MySQL service with Code: sudo start mysql , I get this error:
Code: start: Unable to connect to system bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory What could I do to fix it?
I have a new Ubuntu server (10.10), named Denholm, recently installed and updated. I came in this morning, attempted to add a package with apt-get, and got a "Connection refused" response. I have another server (also 10.10), named Moss, on the same network that can connect successfully.
Here's what I've found/tried so far:
This doesn't look like and apt problem anyway, but the sources.list files on Denholm and Moss are identical.
I can ping [URL] (and other sites) successfully from Denholm.
I have tried 'wget www.google.com'. From Moss the wget is successful, but from Denholm I get "Connection refused."
I have a web server on Moss and Denholm can successfully access it.
To the best of my knowledge, Denholm is not configured to use a proxy server (no http_proxy variable set).
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?
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.
I've set up a server running Ubuntu 10.10 (desktop) with apache. Problem is: When I try to configure multiple virtual hosts I can only access the first one. I'm sure that I'm missing something basic in my setup, but I cannot seem to figure out what.
What I want is simply two virtual hosts, one only available on the LAN where I can test my php files and one "live" available from the outside.
Heres what I've done:
Installed Apache2.2 Copy /etc/apache2/sites-available/default -> /etc/apache2/sites-available/dev Modified "dev" config DocumentRoot and Document to point to /var/www/dev Modified "dev" config VirtualHost to <VirtualHost *:1337> (port change right?) Modified "default" config DocumentRoot and Document to point to /var/www/live
[Code].....
Live works fine, but dev cannot connect (as if there is no server there).
I am trying to setup a mumble server on Ubuntu Server 10.10. I have downloaded/installed all of the necessary files and configured my router to open up the necessary port (64738 ). However users outside of my network are unable to connect to the server (get Timeout error). Also to add, I am fairly new to using linux/ubuntu.I made a post on reddit where you will find more information regarding my problem: [URL]
I have recently Installed Fedora 11. I have installed postgres like yum install postgresql but I wonder there is no user created for postgres when I tried su postgres system says, no identity for user postgres. even when I tried to connect postgres server using psql then it says
Code:
psql: could not connect to server: No such file or directory
Is the server running locally and accepting connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
I'm trying to connect to url, but the browser is unable to connect to the localhost; my OS is F11, if someone have encounter this problem? i was able to connect to the localhost when i had F6 OS.?
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 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.
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.
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
Trying to setup Samba for the first time and am unable to connect to the share from my Windows machine. It is a very basic setup, just trying to setup a single share to use a backup location for my windows files.
I've done the following: 1. Fresh install if fedora 15 2. installed samba rpm -qa | grep samba gives the following:
[Code].....
3. Used samba server configuration to setup the share and create the samba users 4. When I tried to connect from my windows machine I get the error that the server is not accessible, you might not have permission to use this network resource or I get the error "windows cannot access server, check spelling and try again.
Both computers can ping each other. I opened samba ports in the linux firewall and tried to connect again: same error Disabled firewall all together and have the same error. Here is the output from the testparm command
I installed FC10, and configured everything to work with my static IP address [URL]. As far as email goes everything works except for the php script on my website. This script worked fine on my previous install, and it appears to actually submit the email as shown in the maillog:
Aug 12 14:21:02 myhome postfix/pickup[27581]: 37406BFDD9: uid=48 from=<apache> Aug 12 14:21:02 myhome postfix/cleanup[27783]: 37406BFDD9: message-id=<20090812192102.37406BFDD9@www.myhome.com>
[code]....
I also created the following php script to test
<? (mail ("test@myhome","Test message","this is a test")) ?>
And I was able to send successfully with this script with the only difference being it was sent by root rather than apache. This leads me to believe it's some sort of rights issue with the apache user. I wouldn't be surprised is SELinux was behind it all. I spent days and days after installing wordpress trying to get it to connect to mysql, and that turned out to be a SELinux issue.
