Ubuntu Servers :: Can VM's Use More Than One Node In Cloud

Jun 7, 2011

Can a Virtual Machine, instantiated in the Ubuntu Cloud (UEC), use resources from more than one node?

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Ubuntu Servers :: Error When Adding Cloud Node?

Jan 4, 2010

First time setting up Ubuntu Cloud system.

I get error during install when searching for and trying to add node from the Cloud Controler: New node found on it? [Yn] y Connecting to 127.0.0:8774...failed: Connection refused. Error: you need to be on the CC host and the CC needs to be running.

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Ubuntu Servers :: Network Between Cloud Controller And Nodes Is Required For A Proper Cloud Installation?

Jan 12, 2010

what kind of network between cloud controller and nodes, is required for a proper cloud installation? I mean, Does all machines needs to be in same network, in same lan, or may be in MAN or WAN ? how much should be network throughput? 1Mbit/sec , 10Mbit per sec, or 1Gbit/sec? I ask because I need to know the possibility of running nodes on different locations.

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CentOS 5 :: Eucalyptus Node Controller And Cloud Controller Apps Won't Bind To IP

Jun 18, 2010

I can not get the node or cloud controllers to startup using the init.d scripts. I have a fresh install of CentOS 5.4 with Eucalyptus 1.6.2 I have compiled Eucalyptus and all packages using the RPM supplied from Eucalyptus and utilizing yum installer. I do not currently have any processes or applications listening currently on the ports on the boxes as well. I think it may be a permissions issue or something because I get a "permission denied error", but I am not sure if it is Eucalyptus or CentOS. It looks as if it is not binding to the address on the interface of the NIC. It may be something else however. I have the Node controller, Cloud controller, and Cluster controller on seperate physical boxes. When I try to run either the cloud controller or the node controller I get this message:

Cloud Controller:

[root@cluster-cont ~]# /etc/init.d/eucalyptus-cc start
Starting Eucalyptus cluster controller: (13)Permission denied: make_sock: could not bind to address [::]:8774
(13)Permission denied: make_sock: could not bind to address


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Ubuntu Servers :: What Is The Enterprise Cloud

Sep 19, 2010

I have read just about every page about the UEC project, and I now know everything about it, except... WHAT IT DOES! I can't seem to find a coherent example of what it does. To the best of my understanding, it runs a virtual machine across multiple servers. Allowing the VM to use the RAM, CPU, and HDD resourced on all servers involved.

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Networking :: IP And Port Forwarding From Cloud To Cloud?

Oct 24, 2010

So best if you take a quick look at this image, which describes a network topology: [URL]

I am behind a firewall in the university dorm and many ports are banned. Well pretty much everything besides 80, 8080, 110, 21, 22 and the most basic ones. So I'd like to get around that.

I have a home server that is connected and reachable on the internet. So if you type in into a browser it's reachable.

The task would be to set up a port forwarding or how you call it in a way that if I access my home server from the dorm or anywhere, it would act as a forwarder and forward that packet or connection to the server on a specific port, say 2083 so that I can even access my hosting Co's admin user interface.

To sum it up: I'd like to access the server from the dorm on port 2083 which is blocked by a firewall, but I have a home server that is reachable on non blocked ports. The home server has no ports blocked.

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Ubuntu Servers :: Run The Eucalyptus Cloud Images Using Elastic Fox?

Mar 19, 2010

We do have a problem on running the images on the cloud server.. how we can use or how we can run the eucalyptus cloud images using elastic fox? or there is another simple way to activate those images provided by eucaplypus... thanx in advance... and were trying to activate the private cloud only..

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Ubuntu Servers :: 10.04 Desktop Vs Cloud Server Edition

Jul 15, 2010

What's the difference in terms of scalability? We would be hosting videos and FOSS collaboration tools (wiki, forums, etc.) on 4 separate servers. If I install the cloud server, I will need to install the GUI anyways. The servers are all brand new

- 2x Intel Xeon quad cores 2.4 GHz
- 12 GB DDR3 RAM
- 4 Ethernet ports

What benefits would cloud server provide over desktop and vice versa?

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Ubuntu Servers :: Difference Between Cloud And VMWare ESXi

Sep 4, 2010

differences between Ubuntu Cloud and other virtualisation systems such as VMWare ESXi, and why one would be used in preference to another?

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Ubuntu Servers :: Test Website In Private Cloud?

Oct 15, 2010

I have installed Ubuntu enterprise cloud on two machines(Cluster and node)and trying to set up an image and test my internal website in private cloud. if there is any documentation or any steps?

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Server :: Multiple Streaming Servers In A Cloud?

Aug 9, 2010

I have multiple video streaming servers(Red5 running on machines internally on LAN. For different subdomains.Ubuntu 10.04 The front end to the is apache2 on a Bastion Host. To be able to reach the streaming server I embed a javascript in HTML pages as follows


<embed .....


how will I make sure this rtmp request is mapped to a port different than 1935 as there are three other streaming servers which are also to respond to their respective requests.

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Ubuntu Servers :: Setup My Own Mini-cloud Storage System?

Jan 26, 2010

I have collected a number of computers over the years, and now I would like to put them to good use. I considered UEC, but many do not support hardware virtualization and all I really need is storage. Over all the machines, I estimate that I have 4-5 terabytes of storage, all going to waste because each one has relatively low storage space. Is there any way I could setup a redundant storage solution that utilities these machines in a networked system?

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Ubuntu Servers :: How To Switch Clients From A Normal Server To A Cloud

Feb 4, 2010

what cloud computing is and i think it can help me with some of my clients i want to switch my clients from a normal ubuntu server to a ubuntu cloud. as of right now i have to send out a bill to them and if they dont pay i have to shut down there service till they pay. what i would like to do is to have a cloud where i can sell them based on what they use not a set price like it is now. and have them be able to pay there bill on the cloud and if they miss the bill then the cloud can shut off there service till its payed.

i dont know if this is possible and i have looked everywhere and all i can find is info on other businesses billing and now how to set up a cloud to do this. i wish there was some kind of tutorial for this. if anyone can direct me to some good notes/tutorials that would be very helpful. this could be a big changing point in my business if i can do this. it would save a lot of time and cash.

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Ubuntu Servers :: Enterprise Cloud Services Not Running On Boot?

May 7, 2010

I downloaded the latest 10.4 server CD with the intention of running a small Ubuntu Enterprise Cloud. I am following the directions here: [URL] Ive got 2 laptops that are capable of the tasks assigned to them. Both have dual core Intel chips that are VT enabled, 4GB of RAM, 250GB hard drives. Ill use one ( "server" ) as the front end server running cc, clc, walrus and sc.The other one ( "node1" ) will be the only node controller on my little network. Ive also got another laptop as a client, running euca commands to make instances and what not.These three laptops are connected to a switch. server is, node1 is going to be, the client laptop is

the server seems to install fine, I select Install Ubuntu Enterprise Cloud, use it as the Cluster, give the cluster a name and 10 IPs to assign, After the server is done installing and reboots, I boot the node machine off the CD and again select Ubuntu Enterprise Cloud. It's at this point the install craps out, because it does not recognize a cloud computer on the network.

Indeed, as I go to the server I run


ps -aux | grep euca

and see nothing running. So I start the eucalyptus service, and run


sudo euca_conf --list-clusters

and nothing shows up. Ive done some googling, ran some more euca_conf commands, registering the cluster, enabling walrus, cloud and sc. I can access the web gui on the client laptop, then restart the node install on the node laptop. This time it does see the server as a cluster controller, but when it tries to fetch the preseed file, it seems to not know the cluster's IP, as the red box that complains about the lack of a preseed file lists the URL as [URL] ( or whatever the file is called, I dont have the error in front of me. )

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General :: Make A DRBD Node Start Itself As A Primary Node Automatically?

Jan 28, 2010

I've set up DRBD on 2 machines, 1 of them is the master, another is the slave.

After each bootup, I need to run the following on the master machine:

drbdadm -- --overwrite-data-of-peer primary all

Do we need to specify which machine should be the primary node every time? Is there any method to make the machine "know" it's itself the primary node?

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Programming :: KSH Script Behaving Differently On An HACMP Cluster Node (prod) & A Single Node (UAT)?

Dec 16, 2010

I have created a simple menu driven script for our Operations to take care of the basic monitoring and managing of our production application from the back-end. Now, the script when tested in UAT environment was fine, but when deployed to production it kind of behaved oddly.hen the Operator chooses an option from the menu he is given the output and at the end is prompted to return to the main menu by using ctrl+c. In production, this return does not occur for some strange reason and the program just sits there.The session becomes unresponsive after that and I'm forced to terminated it by closing the PuTTY.I tried enabling the debug mode too (set -x) and still was not able to find any useful hints/trails as to why.

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CentOS 5 Networking :: Setup The Cluster To Automatically Failover The Service To Another Node Case One Node Fails?

Mar 1, 2011

I am familiar with windows 2008 cluster servers, and I just started testing with centos cluster. I am creating a simple 2-node cluster, for a simple ping test.

Node 1:
Node 2:
Virtual ip:

So far, I can ping a virtual ip, and manually relocate it between the nodes, but I didn't figure out, how to do this automatically. So this is my question: How can I setup the cluster, to it automatically failover the a service to another node case one node fails?

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Server :: Node Failover And Another Node Take Over Resources On HA Cluster?

Oct 27, 2010

I don't have much experience in clustering. And I'm deploying a cluster system on CentOS.But I don't know how long a node failover and another node take over those resouces to continue running service is good, fast or slow? 1s, 10s or

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Ubuntu Servers :: Apache Reverse Proxy Redirecting To Eucalyptus Cloud Settings

May 26, 2010

I am having a few websites running in a Reverse Proxy scenario on Ubuntu Server 10.04. The configuration is like this:

| (site1.abc.com)
| (site2.abc.com)
| (site3.abc.com)
| (site4.abc.com)
(Public IP ) |
(reverse proxy server) |
( |
| (site5.abc.com)

Except one all websites are running properly and being redirected to their respective domains.
Following is the configuration which I used for each site define on server A a vhost file which contains following

# ProxyPass / http://<Ip of Server>
# ProxyPassReverse / http://<Ip of Server>

So if I have 5 websites then I have 5 vhost file on the gateway in above diagram A and in each of those file as above root of site is redirected to internal IP. 4 of them are running properly. The fifth website is running on port 8080:/keyword. So in its vhost file on gateway I defined

# ProxyPass / http://<Ip of Server>:8080/keyword
# ProxyPassReverse / http://<Ip of Server>:8080/keyword
I can see on Lan http://<Ip of Server>:8080/keyword but when from internet I try to see:
I get redirected to a page is https://site5.abc.com:8443/ and it says

The webpage at https://site5.abc.com:8443/ might be temporarily down or it may have moved permanently to a new web address. The site5.abc.com has a requirement to be run at port 8080 internally and it is not a Ubuntu server.(Red Hat based server). While rest all are Ubuntu servers including gateway A.

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Ubuntu Servers :: Access Virtual Instances Running On The Cloud From Remote Desktop?

Aug 8, 2010

I am a novice in the world of cloud and recently managed to configure Ubuntu 9.04 Cloud (using kvm, eucalyptus and other packages) successfully at my college for my project work. The problem is that i can only manage to view the running instance using rdesktop from any remote machine. Is there any way to do this other than rdesktop/logs? Secondly, I want to develop a application on the lines of google docs as a part of my project. Is it possible to install apache server on this virtual instance, and host a website? How will the client access this website? Which frameworks would be required or do I have to develop one?

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Server :: Process Of Setting Up A Couple Of Virtual Servers In A Cloud Environment?

Mar 17, 2011

I am in the process of setting up a couple of virtual servers in a cloud environment. I am currently working on my application server (Server 1) and am stuck on the creation of my ruleset for this server.

I need to allow SSH, FTP, HTTP, HTTPS, and PING on this server. This server will also need to be able to talk with a couple of database servers as well as a memcache server (all internally within my cloud environment)

I have been reading on iptables, since I have never messed with them before, and have come up with the ruleset I will paste below. I have taken other steps to secure my server...changing ssh port, not allowing root to login via ssh without logging in as a user, turning off unnecessary daemons, editing my hosts allow/deny files, just to name a few.

I am a newbie to iptables, so I would love a bit of helpful advice, criticism, and even a good explanation why I should add or remove or edit something. I really want to know the how AND the why!


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Ubuntu Servers :: How To Setup Based Cluster Configuration For Each Node

Jun 27, 2010

I need to setup an linux cluster ..so i prefer ubuntu because of support and i personally i use ubuntu.. and can any one explain in breif ..what all the things needed to setup an ubuntu based cluster my configuration for each node will be (totally 6 nodes) core2 duo with 4 gb ram i need 4 nodes and 2 for load balancing..

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Fedora Servers :: Build A 3 Node Web Server Cluster To Run A Php Application ?

Feb 24, 2011

I need to build a 3 node web server cluster to run a php application. Since the app requires users to login (which means a session state is to be maintained), I will be sharing sessions save path, I also need to share the application directory across 3 nodes. I having trouble deciding which cluster file system to select.

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Ubuntu Servers :: How Apache + Ubuntu + Cloud Computing Works Together?

May 24, 2010

how Apache + Ubuntu + Cloud computing works together.Right now, I have [url].... set up to go from my DNS to the cloud server. httpd.conf currently looks like this:

<VirtualHost *:80>[code]...

But when you go to 'elliesdev.com' it shows you the EHCP page. I have followed this thread to uninstall EHCP as well as deleting the index.php and its image files from /var/www but I still see the "default web site page" by EHCP. So I'm pretty sure its something with Apache that is causing the site to display that page? What should I do to get ride of it the EHCP default page?I also have a magento ecommerce running at elliesdev.com/magento and I would like to have Apache display it as the default page that you see when you go to elliesdev.com. I have tried changing the DocumentRoot in Apache to /var/www/magento but it makes magento display wrong. How do I make Apache referre to /var/ww/magento as the default for elliesdev.com without displaying wrong?Also, when you go to elliesdev.com/magento, the URL will turn into IP-ADDRESS/magento. How do you make Apache keep my domain name in the URL and not change it to my IP address?I have a feeling that what I am doing is correct, but there is some config file from EHCP that I have not deleted yet that is causing all of this.

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Ubuntu :: One Just Emptied The Cloud Drive

May 8, 2011

I have (had) most of my pictures backed up on Ubuntu One. I have several Computers and everything was in sync. The first time took weeks as I have around 20GB of pictures and a mediocre internet connection. So I installed Ubuntu 11 on one PC, and as I wanted to repartition things, I took a copy of the Ubuntu One folder, then reinstalled from fresh. When it was done, I copied the Ubuntu One folder back. Ubuntu One didn't seem to like this, and has basically decided to upload everything again, but my used space is not showing up as 1.8GB. Where have my online files gone?

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Ubuntu :: How To Create Private Cloud

Jun 26, 2011

I have a number of questions related to Ubuntu and private cloud: I would be working on cloud computing for my final year project soonest.
1. What are the things to be done after installing ubuntu to deploy a private cloud.
2. My computer is running 32bit Intel CPU, is there anyway I could possibly install 64bit Ubuntu/Fedora OS on VM installed on this computer?
3. what are the other software applications that I need to install on ubuntu to enable me create a private cloud.

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Ubuntu :: Cloud Storage Options?

Jul 30, 2011

In our school I was thinking of moving to virtual desktops for the students, that would revert to a pure state upon every log out. No changes preserved after a session. We use Google docs for office, so that works. But where can we store stuff like Inkscape drawings?As far as I can tell Google storage can't be reliably mounted yet on Ubuntufor a good cloud storage option that we can quickly log into that will give us a folder for storage online?

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Debian :: Gui For Ubuntu Cloud Server?

Nov 27, 2010

i have installed ubuntu cloud server, but this server dosent have gui.

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OpenSUSE :: Ability To Do Cloud Computing?

Dec 5, 2010

I was wondering, being a former Ubuntu user I was able to do cloud computing using Ubuntu One. Is there anything similar in OpenSUSE?

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General :: Getting Audio Editors In The Cloud?

Apr 21, 2010

there's any audio editors in the Cloud (ones that are capable of running on Google Chrome OS, that is, in a Web browser).

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