Questions tagged [cloud-computing]
Cloud-Computing: Marketing term for clustered resources
320
questions
102
votes
9
answers
107k
views
How to add a security group to a running EC2 Instance?
I have an Amazon EC2 instance running and I will like to add another security group to that instance and then remove the current security group from that instance. Is this possible?
- 3,081
67
votes
2
answers
24k
views
Why does Heroku warn against "naked" domain names?
I ran across this page in the Heroku docs...
Naked domains, also called bare or apex domains, are configured in DNS via A-records and have serious availability implications when used in highly ...
- 2,449
61
votes
12
answers
87k
views
Is virtual machine slower than the underlying physical machine?
This question is quite general, but most specifically I'm interested in knowing if virtual machine running Ubuntu Enterprise Cloud will be any slower than the same physical machine without any ...
- 711
41
votes
5
answers
40k
views
Create an AWS HVM Linux AMI from an Existing Paravirtual Linux AMI
Is it possible to create a hardware virtual machine (HVM) AMI from an existing paravirtual (PV) AMI.
My initially thought was to start a new PV instance and use the ec2-create-image command to ...
- 513
32
votes
3
answers
14k
views
What are the benefits of running chef-server instead of chef-solo?
I am looking at automated deployment solutions for my team and have been playing with Chef for the past few days. I've been able to get a simple web app up an running from a base Red Hat VM using chef-...
- 625
30
votes
8
answers
5k
views
How are admins managing their EC2 EBS's and Snapshots?
My company is moving our hosting to Amazon and I'm working though all the migration issues. It has been quite a challenge transitioning from physical hardware to transient virtual machines.
One of ...
- 1,724
23
votes
8
answers
38k
views
Where is log output from cloud-init stored?
Where does output from cloud-init (automatically runs scripts when starting up a virtual machine in the cloud, for example at Amazon EC2) go? I would like to know that my initialization scripts ...
- 1,994
20
votes
2
answers
43k
views
How do I set up an sftp user to login with a password to an EC2 ubuntu server?
I have an Ubuntu Server running on an EC2 instance.
To login to that server I use a certificate file without any password.
I've installed and configured vsftpd and created a user (let's call him "...
- 553
15
votes
2
answers
3k
views
Why does Google recommend removing SSH keys from GCE for security?
The below reference to Google documentation is no longer true.
Google recommends removing SSH keys from GCE instance to secure SSH. That does not make any sense to me. The keys are there for a ...
google-compute-engine
12
votes
4
answers
6k
views
What happens when a physical machine fails in a virtual environment? [closed]
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 ...
- 255
12
votes
7
answers
6k
views
Cloud Providers that support FreeBSD? [closed]
NOTE: Even though I've accepted an answer for this, if you have a better one, please put it below. Thanks!
I'm looking for recommendations from the wise and all-knowing Server Fault community on ...
- 7,382
12
votes
2
answers
2k
views
Meltdown & Spectre - Does patching the guest kernel of an unpatched hypervisor prevent cross-VM memory leaks?
24 hours after the wide scale release of the vulnerabilities, Rackspace is silent about Spectre and Meltdown. They do not have a plan for patching all of their Xen hypervisors. All their newer ...
- 498
11
votes
11
answers
15k
views
Which Distributed File System as a backend for Cloud Computing?
I have a basic cloud running on Ubuntu Server (9.04) and Eucalyptus. Walrus (Eucalyptus' API compatable S3 implementation) stores files by on the cloud controller. However each of the other 4 server ...
- 151
11
votes
2
answers
620
views
What is your favorite cloud computing provider? [closed]
Which cloud computing provider would you recomend for a windows stack, in terms of cost and reliability?
- 424
11
votes
3
answers
3k
views
How to cap bandwidth usage on AWS EC2?
I'm planning to use AWS EC2 for my web application and I need control over the bandwidth usage (don't want the instances to be compromised and ramping up bandwidth cost crazily). There are many ...
- 113
10
votes
4
answers
5k
views
Amazon EC2 bandwidth charges in case of unwanted incoming traffic(ddos/flood)?
What happens if my EC2 instance gets ddosed/flooded, which could potentially go up to tens of gigabytes an hour(and even more) of undesired incoming traffic, will i be charged for this traffic?
My ...
- 349
10
votes
4
answers
8k
views
Windows desktop (XP, Vista or Win7) EC2 AMI for QA testing
I need to perform QA testing for Windows based applications on a Windows desktop client and I would like to know if EC2 supports Windows images that are NOT server based (e.g. Server 2003). I have ...
- 927
9
votes
3
answers
3k
views
What's the easiest way to back up EC2 instances automatically?
I'm worried I might log in one day and my fully configured instance has been removed. I would like to be able to back it up daily to S3 but frustratingly this is not a simple setting in the console.
...
- 2,629
8
votes
2
answers
47k
views
CentOS 7 Generic Cloud login?
I have an OpenStack cloud and added the CentOS-7-x86_64-GenericCloud-1503 image and it boots just fine, but I do not know how to login. What is the root password? How can I set it? Is there some other ...
- 480
8
votes
2
answers
6k
views
How to configure IIS wildcards for account subdomains (like Basecamp)?
In effect I'm working on a SaaS application where I want to give subscribers their own subdomain to access their information (in code I will be pulling the first part of the subdomain for use as their ...
- 915
8
votes
4
answers
3k
views
What Makes Cloud Storage (Amazon AWS, Microsoft Azure, google Apps) different from Traditional Data center storage networking (SAN and NAS)?
Some confusion because of my question so to make it simple :
"What kind of storage do big cloud providers use and why?"
As far as i understand, however I am not able to find any kind of official ...
- 431
7
votes
5
answers
4k
views
amazon cloud vs rackspace cloud [closed]
I'm looking to take a dedicated server - in the process I read about Amazon Cloud computing & Rackspace Cloud Servers.
Now I'm not sure which one to opt? Could somebody suggest - Performance &...
machaa
7
votes
6
answers
3k
views
Getting rid of your server in a small business environment
In a small business environment, is it still necessary to have a central server?
Speaking for my own company (a small charity with about 12 employees) we use our server (Windows Server 2003) for the ...
- 373
7
votes
2
answers
21k
views
What is Load Balancer Warmup?
What exactly is the process of warming up a load balancer? How does it help before a huge load process? How is it different from Simply upscaling a cluster behind the LB beforehand.
Do CSPs do ...
7
votes
3
answers
3k
views
Instance's deployment / post configuration for AWS Elastic Beanstalk
I am using AWS Elastic Beanstalk, it is easy to start with deploying Java based web app, which is great.
However, I want to install Memcached on every instance locally so they can be used for caching,...
- 2,175
7
votes
8
answers
7k
views
Multiple servers vs 1 big server performance
My team of developers has suggested a server structure for an upcoming project we are developing. Our structure is "logical", meaning that the various logical components of the application (it is a ...
- 457
7
votes
2
answers
5k
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 Pay-...
6
votes
6
answers
3k
views
Are Rackspace's Cloud Servers really cloud hosting?
I may be confused about what cloud hosting really is...
I asked Rackspace how its Cloud Server (CS) 256MB/10GB compares to Slicehost's 256slice VPS, and they said it's exactly the same (only ...
- 455
6
votes
12
answers
766
views
What is "Cloud Computing"? [closed]
Everywhere I turn, I keep seeing the term "cloud computing". I've done the usual drill of reading Wikipedia, searching around a bit, but it's hard to sort the wheat from the chaff.
Can someone ...
6
votes
1
answer
5k
views
I accidentaly enabled the UFW on my Google Cloud Computer
I accidentally enabled the UFW on my Google Cloud Compute debian instance and unfortunately port 22 is blocked now. I've tried every way to go inside the VM but I can't.
I'm trying to access through ...
6
votes
2
answers
356
views
Cloud infrastructure for home and personal experimentation? [closed]
As with many techies-- I've accumulated a number of older x86 servers, x86 desktops, and Cisco switches over the last few years.
I'd like to build a small cloud cluster for web app experiments (web ...
- 177
6
votes
1
answer
316
views
Error when configuring Hudson EC2 Plugin
I want to run Hudson on EC2 and use Hudson's EC2 plugin to create Hudson slaves to run my tests.
I installed it, but when trying to configure it, I get a lot of errors:
What's going on? How can I ...
- 5,301
5
votes
4
answers
7k
views
Comparison of cloud hosting providers [closed]
Is there a place where we can compare* the many new arising cloud hosting providers? From reading into each of them, they seem very different and range from just hosting applications (google) to a ...
- 1,047
5
votes
7
answers
7k
views
Choosing a monitoring system for a dynamically scaling environment: Nagios v. Zabbix [closed]
When operating in the cloud and scaling boxes automatically, there are certain monitoring issues that one experiences. Sometimes we might be monitoring 10 boxes and sometimes 100. The machines will ...
- 148
5
votes
2
answers
255
views
Does Cloud Computing COST a premium? (or is it competitive with shared/managed/co-location)
Since cloud solutions (Google AppEngine, Amazon, etc.) do more for you, at the end of the day do they cost significantly more than doing it "yourself" with co-location hosting, etc.
Not just ...
5
votes
4
answers
4k
views
Is it possible to host email and DNS on AWS
We are working towards moving our app to AWS. I have heared that email and DNS cannot be hosted on AWS, is this correct?
If this correct, then what are my options?
- 315
5
votes
6
answers
2k
views
(*nix) Cloud/cluster solutions for scalable web-services
I'm going to build a high-performance web service. It should use a database (or any other storage system), some processing language (either scripting or not), and a web-server daemon. The system ...
- 11.2k
5
votes
2
answers
1k
views
What is Ubuntu enterprise cloud?
If I install Ubuntu 10.04 Server, will it provide me with virtual machines which I can use to install different OSes? I need Debian Lenny on a VM for example. What facilities does it provide? Is it a ...
- 3,398
5
votes
3
answers
291
views
How can I calculate how much a high volume site would save with cloud computing Vs. traditional hosting?
How can I calculate the required bandwith and cost of hosting a site that would have around 3 million unique visitors per year? I wanted to come up with an estimate of how much cost could be saved by ...
- 8,502
5
votes
2
answers
794
views
Is Amazon EC2 reliable for benchmarking?
I've been rethinking the compiler shootout and I began to wonder: is Amazon EC suitable for benchmarking? The environment is totally virtual, so are there any guarantees that benchmarking results will ...
- 14.5k
4
votes
3
answers
1k
views
Why do cloud providers calculate per hour? Who turns off their servers anyway?
I'm not tech/unix/sysadmin ignorant, but i still can't understand why Amazon, Rackspace, Azure, GoGrid, Linode and these guys calculate their instances per hour used...
I have to ask... Who on earth ...
- 221
4
votes
5
answers
5k
views
EC2: maximum shutdown time exceeded
Is there a maximum shutdown for instances in Amazon EC2? And is that maximum configurable via the EC2-API?
We transfer data at shutdown time from the instance to S3. This works great for small files. ...
- 185
4
votes
6
answers
1k
views
Co-location vs. cloud hosting
We have a decent-sized server estate: several ProLiants, plus IBM BladeCentre and SANs running a VMWare environment. Due to an imminent premises move, we're not going to have enough space for a ...
- 3,740
4
votes
2
answers
1k
views
Are there any hosts that use openstack? [closed]
http://www.openstack.org/
I'm looking for a good cloud hosting company with utility style costs (paying for how much bandwidth, hard disk, cpu is used.
- 1,927
4
votes
1
answer
12k
views
error: unknown OS type hvm - help deploying VM - OpenNebula [closed]
I have the following errors when I try to create a VM:
Log:
Tue Mar 12 16:57:23 2013 [DiM][I]: New VM state is ACTIVE.
Tue Mar 12 16:57:23 2013 [LCM][I]: New VM state is PROLOG.
Tue Mar 12 16:57:23 ...
- 65
4
votes
4
answers
2k
views
Multicast in Rackspace cloud
On Amazon EC2, I cannot use multicast, but how about rackspace cloud? It would be very beneficial to be able to use multicast as most clustering protocols rely on it...
- 220
4
votes
2
answers
668
views
MySql Data Loss - post mortem analysis - RackSpace Cloud Server
After a recent 'emergency migration' of a RS cloud server, the mysql databases on our server snapshot image proved to be days out of date from the backup date. And yet files that were uploaded ...
- 281
4
votes
1
answer
4k
views
Cheap 'n' easy AIX hosting services? [closed]
I'm working on a product that's written in generic, cross-platform-friendly Java. However, this Java component plugs into a natively-compiled, platform-specific third-party SDK. A potential customer ...
- 205
4
votes
7
answers
17k
views
Expecting High traffic on website..How to manage
I am expecting high traffic on a corporate website i am managing.At present the website is hosted on godaddy shared hosting.
As it will be an IPO for my clients company so i don't have any idea what ...
- 149
4
votes
5
answers
1k
views
Ec2 Denial of Service: Securing cloud based website from DOS attack
How can I prep up my website infrastructure running on an EC2 instance against DOS attacks? I run apache with nginx as reverse proxy
- 4,443
Related Tags
amazon-ec2 × 70
cloud × 63
amazon-web-services × 34
virtualization × 26
cloud-hosting × 26
linux × 19
virtual-machines × 19
ubuntu × 18
azure × 18
openstack × 18
rackspace × 18
hosting × 17
windows × 11
load-balancing × 9
amazon-s3 × 9
cloud-storage × 9
rackspace-cloud × 8
mysql × 7
storage × 7
vps × 7
ssh × 6
backup × 6
web-server × 6
more related tags
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