Cloud computing is the delivery of computing as a service rather than a product, whereby shared resources, software, and information are provided to computers and other devices as a utility (like the electricity grid) over a network (typically the Internet)

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0answers
25 views

Migrating from classic hosting to Cloud [on hold]

Where I work, we have a small number of servers and a very weak infrastructure. Websites are on a CPanel VPS, DNS on the domain registrar and email server on-promise. As the DevOps in the business, ...
-1
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1answer
9 views

How to retain the Session vars when deploying in Clouds and Cluster servers?

How do you ensure your user retains the same session information when your application is deployed to a cluster?
2
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1answer
17 views

CloudFront Distribution for Origins in Multiple Regions

Is there a way to point CloudFront to different origin servers based on location? We currently use Route53 latency-based routing to direct traffic to east or west region elastic load balancers. ...
0
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0answers
11 views

openstack installation on vmware

I've successfully installed OpenStack on a virtual machine Ubuntu 14 desktop on vmware workstation and there are 2 different installation methods; cloning the repository or using sudo apt-get ...
12
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4answers
1k views

What happens when a physical machine fails in a virtual environment?

I'm getting started with virtualization so bear with me. In virtual environments applications run in a hypervisor's layer. So a single physical machine could have many virtual machines on it running ...
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votes
1answer
27 views

Hosted pages on custom domains [closed]

I have an online service that provides a public profile for users. Users can sign up and view their profiles at www.example.com/users-name. I want to provide a premium service where the user can ...
1
vote
1answer
30 views

How to set up an end-to-end SNMP data collection system to cloud?

Aim: We are creating a cloud server which will collect diagnostic data (like bytes exchanged, SNR) from remote SNMP enabled network devices (like Routers, Switches). The SNMP devices may be located ...
0
votes
1answer
33 views

In a LAMP stack, what are some obvious ways to utilize ephemeral SSD storage? [closed]

Here I'm talking about cloud servers (from any vendor) which feature some amount of ephemeral SSD storage. When working with standard images, by default this ephemeral SSD storage is wasted and not ...
1
vote
1answer
33 views

S3 Static Website hosting - restricting access from IP Range

Is there way by which can we enforce the access only from a Particular IP Range for S3 Static Website hosted site ?
0
votes
1answer
120 views

Is there a cloud-based reverse proxy solution in AWS?

The system I have an API deployed on EC2 machines on AWS. Incoming HTTPS requests are passed to an elastic load balancer. The load balancer handles the SSL, and passes the request to an Nginx ...
0
votes
0answers
12 views

Elastic Beanstalk, EC2 and Rackspace with Solr

We are currently working on an e-commerce startup and we obviously don't know the number of users that will hit out site (expect it to be highly variable). I'm using a custom implementation of Django ...
0
votes
0answers
11 views

What's the recommended way to scale individual instances in the Google cloud?

In the Google Cloud Platform, it doesn't seem to be possible to resize a VM instance (change the type) the way you can easily do so on AWS. What's the recommended usage pattern here if you run out of ...
0
votes
1answer
29 views

Estimating costing for entities on Azure VMs [duplicate]

We are looking of moving our hosting solution over to Azure (we are a microsoft dev house so it makes sense). It just seems difficult to estimate costing for our hosting solution. To give a simple ...
0
votes
1answer
58 views

SAN storage I/O issues [closed]

I have a relatively busy application running on a dedicated server. The spec is 8-core Xeon(R) CPU E3-1240 v3 @ 3.40Ghz 16GB RAM 8TB RAID 10 80GB SSD for MySQL I use Wowza Streaming Server to ...
1
vote
3answers
25 views

Cloud based security gateway

An organisation whose IT I'm involved with has offices in a country which blocks access to various well know services such as Skype. I can get around the issue by routing all the traffic over IPSec ...
0
votes
2answers
54 views

Creative way to shrink a live ext4 filesystem from cloud provider?

When buying droplets, as DigitalOcean calls their cloud VM's, they are always configured with one large ext4 partition. I have an app that needs an LVM partition, so I need a creative way to shrink ...
2
votes
1answer
58 views

cloud server performance vs same specification dedicated server?

I have a web application written in php (5.6.10) and using Postgresql (9.4) we have about 4k users per day and about 20k page views per days, my main issue that we are running in cloud host with 2 ...
0
votes
0answers
15 views

Cloud server - why downscaling requires restart

I'm using a cloud server that has the ability of autoscaling (vertical scaling). Depending on the current load it is capable of adding or removing CPU's and/or memory banks (virtual of course) to the ...
0
votes
0answers
26 views

Google Cloud DNS top level domain [duplicate]

I would like to host a static site on google cloud storage and I'm using Cloud DNS. lets say I have a domain: example.com, I can create a bucket with a subdomain: www.example.com and it works well but ...
5
votes
0answers
79 views

Best Foundation for Mesos Deployment

We are currently in the process of designing the architecture of our new Apache Mesos cloud setup. The goal is to unify our systems by moving different stacks onto the same architecture. The main ...
1
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0answers
23 views

Doubts about OpenStack nova and swap files

I have some doubts about the qcow2 swap files created by nova when launching instances. I've launched two instances with respectively 1G and 8G of swap memory. So, I verified that four disks where ...
-2
votes
1answer
30 views

Openstack Nova Compute cluster [duplicate]

how to glue multiple CPUs together, I mean How openstack achieves it. What do they really mean when they say create CPU cluster using Openstack Nova. Openstack is written in Python, Any example ( ...
0
votes
1answer
40 views

Snapshot failing in a fresh Kilo install

I have a fresh OpenStack Kilo installation. When I try to create a snapshot from the dashboard or from the nova cli, the snapshot isn't being created. The local snapshot ends with success, but nova ...
0
votes
1answer
20 views

Where the openstack machine images are stored?

In Openstack cloud whether the machine images are stored inside the database as a blob object or in filesystems? And if images are getting stored in filesystem then which service take care of it, is ...
0
votes
1answer
45 views

Migrate to Azure Active Directory [closed]

We intend to migrate all our on-premises active directory accounts and resources to Azure AD. Then follow by migrating files and printers as well as on-premises applications, i.e. sql onto the cloud. ...
0
votes
0answers
42 views

Automatically upgrade virtual machine in load balanced set on Windows Azure

I have been serving web content off of a Linux VM running in Windows Azure, and now want to make a duplicate virtual machine and create a load-balanced set to handle more load and avoid downtime. I've ...
0
votes
0answers
37 views

Does it make sense to define a VNC server in an OpenStack controller node?

I have some doubts about the vncserver_listen and the vncserver_proxyclient_address options in the nova.conf config file. In the OpenStack install guide, the session Chapter 5. Add the Compute ...
0
votes
1answer
70 views

What it means when Linux has no I/O scheduler

I have some virtual machines running Ubuntu cloud-based image 14.04-1 LTS version. I wanted to see the IO performance of different IO schedulers on the VM so I went to ...
1
vote
2answers
30 views

awstats server in dynamic infrastructure

I have a linux server dedicated to awstats. This server hosts awstats application and generate/publish statistics for several websites hosted by several webservers deployed in my infrastructure. In ...
1
vote
0answers
44 views

Azure VM - HTTP GET to Rackspace server is too slow [closed]

I'm testing a web service from my Azure VM and the test involves just doing an HTTP GET which returns JSON data from a Rackspace-hosted server. When performing this test from ANYWHERE but Azure, the ...
0
votes
1answer
54 views

Steps for upgrading ubuntu production cloud server

I have a site running on a cloud server with Ubuntu 13.04. I want to upgrade to 14.04 as seamlessly as possible. I found this answer but I wanted to flesh it out so I can be more confident. My plan ...
1
vote
0answers
56 views

Magento VM Instance on Google Cloud Platform doesn't allow uploading any files

Decided to give the Google Cloud Launcher a try by launching a one click Magento installation. Everything went smoothly and it did get up and running, however I have encountered one glaring fault that ...
1
vote
1answer
124 views

Should I deploy hadoop on physical machines or virtual machines?

We will deploy a hadoop cluster on hundreds(say 300) of physical x86 nodes. Since we have no much production deployment experience, there is a simple question as the title we want to hear response ...
1
vote
1answer
301 views

Azure backup VPN tunnel

Is it possible to set up a failover site to site VPN tunnel in Azure? I have one tunnel already established to local network "MyLocalNet". I want to set up a second tunnel with a different endpoint ...
1
vote
1answer
41 views

options for storing relatively large amount of data [closed]

I'm currently doing a bit of research for a multinational company, as part of my thesis. Truth be told, I'm more of a software/programmer kind of guy, so I'm not quite in my element here. My question ...
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votes
2answers
41 views

URLs and cloud providers [closed]

Lets say that there is the url www.example.com This url holds an web application with a cloud provider other than Google. Lets say there is a second url, an extension of the first url: ...
-2
votes
1answer
668 views

How to secure OwnCloud? [closed]

I am not literate when it comes to servers, but I like the idea of having my own cloud storage for privacy reasons. OwnCloud is targeting (at least a little bit) the "DIY-home-user" so it seemed to be ...
0
votes
1answer
68 views

Current setup maxing CPU. Need help designing AWS architecture and MySQL Clustering via AWS RDS instances

My company runs a mid-sized eCommerce (30,000-50,000 unique views monthly) shopping cart using X-Cart as a back-end. We are in the processing of redesigning and upgrading our back-end software. We are ...
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votes
1answer
144 views

Office 365: is it fully online solution (i.e. syncing isn't required)? Can it be used with other cloud storage services? [closed]

For some reason unknown I just can't find a good techical explanation of how exactly Office 365 functions, and, particularily, can I completely disable all kinds of local ...
-1
votes
1answer
108 views

Use of volume backing file size use in devstack?

I am trying to set up openstack on a single machine using devstack scripts. In configuration for cinder this parameter is given VOLUME_BACKING_FILE_SIZE. I am not able to understand what is the use of ...
-3
votes
1answer
45 views

Azure Cloud Services Running 4 hours straight [closed]

I've deployed some WCF services to the Azure Cloud Services, but it shows every day that it runs for 4 hours, when no-one is using the services. The only thing I thought was maybe it was hackers ...
0
votes
1answer
269 views

Can I replace local Microsoft Active Directory with AWS Directory Service?

We have a very basic AD usage (basically manage user password reset) and for that we have to maintain a old Windows server. All the services our internal users access are on the cloud (GMail, Google ...
0
votes
1answer
206 views

How to install AV on existing Azure VM using agent tools?

If I already deployed a VM, how can I use the VM agent to install an antivirus software from the Azure marketplace (i.e. McAfee)? There must be some Powershell command or something but everything I've ...
0
votes
0answers
113 views

Ubuntu MySQL/Jetty unexpected server halt - hardware or software?

I have a MySQL 5.7, jetty 9, and NGINX 1.6 server running ubuntu 14.04.1 in digital ocean. It has zero security updates waiting to be installed and iptables blocking access to everything except for 80 ...
1
vote
0answers
97 views

How to power down Cloudstack configured with XenServer Hypervisors

I have three XenServers(6.2) configured in a single pool. I also have a Cloudstack (CentOS 6.5) Management interface controlling them all. Everything is up and running but I can not figure out how to ...
1
vote
1answer
57 views

cloud-init not executing on rackspace cloud

I was trying to pass a bash script to cloud-init on rackspace-cloud with 'nova boot' via --user-data. I used the following command: nova boot --key-name mykey1 --image "Ubuntu 14.04 LTS (Trusty Tahr) ...
1
vote
1answer
298 views

Migrating resources between different Azure subscriptions

I have a few questions for the Azure gurus out there. I work for a software development house and I have been asked with coming up with our Azure infrastructure. The idea I had is to set up three ...
0
votes
0answers
117 views

Google Cloud: Connection Refused upon reset/shutdown

I recently signed up with Google Cloud to host a small VM instance. I created a basic instance with Ubuntu Server 14.04 LTS as its OS, installed apache2, MySQL and Wordpress to it and worked on a ...
2
votes
1answer
172 views

Google Cloud AutoScaler usage and instance health detection

I find it a bit confusing how Google Cloud Auto Scaler, Managed Instance Group, Target Pools and Network Load Balancers work together. The documentation is a bit sparse and there is no explicit ...
0
votes
1answer
59 views

Test cloud VM performance

I have a linux VM hosted in a cloud environment. I suspect the provider to do too much overprovisioning with CPU and IO, from time to time. For example postgresql's reports 300ms+ queries that are ...