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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35 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 ...
-3
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0answers
19 views

What is Azure Cloud Services and how is supposed to be used?

So this is really bugging me because I don't even understand what the cloud service is supposed to be used for? Each VM I create gets a cloud service and apparently I can add VMs to an already ...
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0answers
7 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 ...
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0answers
9 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 ...
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1answer
24 views

Estimating costing for entities on Azure VMs

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 ...
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1answer
53 views

SAN storage I/O issues [on hold]

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 ...
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3answers
24 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 ...
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2answers
35 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
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1answer
47 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 ...
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0answers
14 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 ...
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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
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0answers
56 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 ...
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0answers
17 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 ...
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1answer
18 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
28 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
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1answer
15 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
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1answer
37 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. ...
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0answers
35 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 ...
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0answers
25 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 ...
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1answer
64 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 ...
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2answers
29 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
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0answers
43 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
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1answer
47 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 ...
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0answers
36 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 ...
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1answer
83 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
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1answer
217 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
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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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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: ...
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1answer
391 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
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1answer
60 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
110 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 ...
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votes
1answer
82 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
44 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
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1answer
209 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
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1answer
157 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 ...
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0answers
109 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 ...
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0answers
88 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
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1answer
49 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
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1answer
156 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 ...
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0answers
98 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
153 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
56 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 ...
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votes
1answer
38 views

What are the MOST Important Things to Configure on a WAF? Specifically Barracuda Web Application Firewall

I will be hosting a web application on a cloud provider. This will be protected behind a WAF specifically Barracuda's Web Application Firewall Vx. I do not have too much experience with WAF ...
0
votes
1answer
497 views

How to the set the hostname in an AWS ec2 instance to a unique value in an autoscale group?

I wanted to find out what is the best practice of setting the hostname of an Ec2 instance that is in an autoscale group. I am looking for a method that is generally acceptable in the ...
-3
votes
1answer
41 views

How should my company bring its product, a line-of-business MVC application, into the cloud? [closed]

I am a recently-hired junior software engineer at a small company that develops and sells a normal client/server MVC application to small and mid-level enterprise clients in a particular line of ...
1
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2answers
95 views

Reliably send small amount of mail from possibly blacklisted cloud IPs

So you boot a new cloud server. Only to discover that its IP is blacklisted by misbehavior of the previous owner. How to make sure your mail gets delivered for a modest price? Context: I provide my ...
2
votes
2answers
365 views

Azure public endpoint SSL termination

In Azure, is there any way to set up an HTTPS endpoint directly on the public VIP, as opposed to joining each VM to a load balanced set, so that I can associate this endpoint with the SSL certificate ...
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1answer
1k views

OpenStack Cinder: iSCSI login negotiation failure after reboot

I have a Cinder storage and controller node running on the same CentOS 7 box as Nova compute. Everything worked fine, until I rebooted. Now my instances can't mount volumes and I get the errors below. ...
0
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1answer
73 views

Why is clock synchronization on servers difficult?

See: Clock synchronization quality on Windows Azure? This is not meant as a rant, it is just curiosity. Is a computer really drifting more than a second in a single day? I can barely imagine that. ...
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2answers
89 views

Eucalyptus can't find ssl certs

I've installed eucalyptus-cloud, -cc, -sc, -walrus on a single computer to test it, with the intent to install node controllers on my other servers. When I start eucalyptus-nc it outputs Cannot find ...