Tagged Questions

Amazon Elastic Compute Cloud (EC2) is a cloud-based computing platform.

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4
votes
1answer
235 views

From a bare minimum Ubuntu to something like an AWS Ubuntu standard image

If I am given a bare minimum ubuntu machine in a private cloud environment with almost nothing installed on it(not even apt-get and ubuntu repositories configured) and the only user is root, what are ...
3
votes
1answer
4k views

Make an Amazon EC2 instance ask for sudoing password

I've launched an Amazon EC2 instance of Ubuntu Server 12.04 and it's all fine except, unlike with my local Ubuntu, the EC2 instance never asks for any passwords when I'm sudoing with the command line ...
3
votes
2answers
319 views

Creating a “deadman” switch using Ubuntu to shutdown EC2 instance

I've put together a simple "deadman switch" using upstart to automatically shutdown my EC2 instances after a period of time. I'm doing this to avoid the dreaded Monday morning blues when you realized ...
4
votes
1answer
337 views

Juju on AWS t1.micro (or other) reserved instances

The smartest (often) way to run instances on AWS is to buy "reserved" instances - for either one or three years. My goal here is to run the WordPress charm on t1.micro instances as per the default ...
4
votes
1answer
137 views

Differences between AWS Ubuntu Image and a fresh install?

I've been using Ubuntu only on AWS for a year now. I'm now trying to set up a virtual environment as similar to my AWS one as possible, and I'm kinda confused. When I spin up an AWS server, the magic ...
1
vote
1answer
1k views

Login to webmin with user has no password (SSH)

I have an simple Ubuntu 12.04 instance running on AWS EC2 I have webmin installed and accessable, but am presented with a login requiring username and password. As part of the AWS install, you don't ...
0
votes
1answer
237 views

Create folders in remote server after ssh login using commands

I need to create folders on the remote server, i try to ssh to the server and then create folders. The logs display that the ssh is successful but it stops after that and the screen stays at the home ...
2
votes
1answer
144 views

juju: deploying lamp charm on ec2 causes instances to terminate

I was running a ubuntu 13.04 instance on ec2. I have juju .7 installed and bootstrapped. when I tried to deploy lamp, it caused the instance to terminate. ubuntu@ip-10-62-73-113:~$ juju status ...
1
vote
1answer
232 views

Where is hadoop-ec2-env.sh in the Hadoop packages?

I'm unable to locate the file hadoop-ec2-env.sh. I've downloaded and intalled hadoop_1.0.4-1_x86_64.deb from http://mirror.olnevhost.net/pub/apache/hadoop/common/stable/ This is the most recent ...
1
vote
0answers
201 views

Permission denied creating file on Ubuntu Server (Amazon EC2 instance)

sudo has been working fine for installing applications and running scripts, but when I try and create a file I am getting a "Permission Denied". I have tried: sudo cat > file.conf and sudo echo ...
1
vote
0answers
21 views

How do I specify an AMI in Juju? [duplicate]

This solution no longer works How to specify ec2 instance types for different services in a charm? since using the default-image-id option in the environments file has been deprecated.It mentions in ...
3
votes
0answers
412 views

Mail Server: system requirements

I want to create a mail server for personal use. It will be used mainly by me and possibly some family members. The system load will be in the order of 5-10 IMAP mailboxes, all for "human" use: no ...
2
votes
2answers
249 views

Tried to follow the EC2 Juju guide and it fails

I am evaluating Juju and when following the very basic tutorial https://juju.ubuntu.com/docs/getting-started.html, literally following every single instruction to a T, all I end up when trying to ...
1
vote
1answer
597 views

How can I tell if port 465 is open for outbound traffic? [closed]

I have an Ubuntu 12.04 server set up on AWS EC2. I'm trying to configure Railo to use Simple Email Service (SES) via an SMTP call (see "Sending Email with the new SMTP Support for Amazon SES" for ...
2
votes
1answer
117 views

using juju with elastic block storage ( EBS )

Is there a way we can use EBS for ec2 instance with juju. And possibility of scaling the storage after the deployment, Thanks
0
votes
2answers
897 views

How to change the default user name from ubuntu to something else on EC2 AMI

How can I create a new Ubuntu AMI so that when a new instance is created the SSH credentials are copied under a different user than ubuntu (e.g. /home/administrator/.ssh/)? In short, I need to be ...
3
votes
0answers
396 views

How can I monitor cloud-init for errors, and trigger a script when it fails?

I'm using cloud-init to provision servers in AWS, and would like my servers to send an email when they're done (whether they fail or succeed). For successful cloud-init runs, the solution is trivial. ...
7
votes
2answers
2k views

what can be causing /etc/cron.daily/apt to hang?

Lately I've been getting a mail from the server every day, Subject Cron <root@host> test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) Body ...
1
vote
0answers
166 views

Any Ideas on a Better Browser Enabled Cloud Desktop using Ubuntu 12.04, Gnome and Amazon Web Services?

I am currently using NoMachine's NX Web Companion free product using java as well as FreeNX and an RDP for Windows to access a Gnome GUI Ubuntu 12.04 instance running on Amazon Web Services Free Tier ...
4
votes
1answer
307 views

blocking all outgoing ports and its consequences

Is this the right way to block all outgoing ports? : ufw default deny outgoing But what are the consequences of doing this on amazon ec2? I'm running possibly unsafe perl scripts on my instance and ...
0
votes
2answers
3k views

How to give a new user permissions to call sudo without a prompt for sudo password?

I am setting up a server in Amazon EC2. I created an image from Amazon's provided images of Ubuntu x64 12 LTS. My goal is to set up a secure svn server there, where access is only possible by IP ...
1
vote
1answer
311 views

“Permission denied (publickey).” error when trying to ssh into server

I am trying to connect to a server via SSH. I am getting the following log from using the command: ssh -vvvT [email protected] Please could someone help me ...
5
votes
5answers
19k views

Errors running apt-get update and apt-get install mysql-server

Since yesterday I've been trying to run apt-get update unsuccessfully in Ubuntu instances I am creating on the EC2. In specific I've been getting these errors: Ign http://security.ubuntu.com ...
1
vote
0answers
290 views

Ubuntu mailing services with Magento [closed]

I'm having some issues with sending emails out from Magento. I'm very new to Ubuntu and had been playing with it for the past 2 days. Is there anything I need to do to allow my mail to be sent out? I ...
3
votes
1answer
2k views

How can I stop unattended-upgrades from rebooting the machine?

I just had a look at my Amazon EC2 instance and noticed I had 20 minutes exactly of downtime. I didn't know what caused it so I logged in to SSH and tried upgrading my packages, and saw that the ...
5
votes
1answer
1k views

How do I optimize apt-fast with Amazon Web Services (AWS) mirrors?

I know that Amazon Web Services has hosted mirrors that I can use to update my Ubuntu machines. I know there is a tool called apt-fast that makes multiple connections to a mirror server to improve ...
1
vote
0answers
107 views

Connections to ubuntu server running on EC2

I have a ubuntu EC2 with its default settings. I'm using it for a web application that receives request from iPhone apps. I was trying to do a stress test to see how many connections could be handled ...
0
votes
1answer
473 views

multiple rails applications on same host name with different folders

When i ssh to amazon ec2, then pwd /home/ubuntu ls app_1 app_2 app_3 app_4 Considering i have mapped my ec2-122** address to some apps.site1.com How can i have multiple rails applications ...
3
votes
1answer
896 views

How do I configure Juju to use Amazon Web Services (AWS)?

I'd like to deploy services on AWS, how can I configure Juju to do this?
0
votes
1answer
85 views

How do Ubuntu updates appear on Amazon EC2?

I have Ubuntu 12.04 LTS installed in Amazon EC2 machine. Sometimes when I SSH into the machine I see a notice asking me to update some packages. Please see the screenshot image below My Question ...
4
votes
1answer
480 views

Juju instances in agent-state: down after turning them off (and back on) on EC2

I turned my Juju instances off on EC2 for a while and after bringing them back online they seem to be in an odd state: juju status 2012-11-17 17:06:44,094 INFO Connecting to environment... ...
1
vote
1answer
122 views

Does anyone know of a program like Elastics for Linux?

On mac I would use Elastics (http://tundrabot.com/elastics) To kind of, monitor my EC2 instances. Most important to me was that it worked across several accounts and that it allowed me to connect to a ...
16
votes
2answers
12k views

Ubuntu 12.04 on Amazon EC2: /dev/xvda1 will be checked for errors at next reboot?

I'm running the lastest Ubuntu 12.04 AMI (ami-a29943cb) from Canonical on Amazon EC2 and quite often when I log in I get the message: *** /dev/xvda1 will be checked for errors at next reboot *** I ...
4
votes
2answers
630 views

Latest ec2 Ubuntu instance seems broken [duplicate]

Possible Duplicate: Trouble downloading updates due to “Hash sum mismatch” error I am using ec2 Ubuntu instances now for some time and never had a problem with. Today I created a new Ubuntu ...
2
votes
0answers
458 views

Unable to connect FileZilla to ubuntu ec2

I have a micro ubuntu instance on ec2. I have done a passwd to set it to simple password. I have installed vsftpd on the ec2 instance. And imported the ec2 pem file via FileZilla-Settings-SFTP, and ...
2
votes
1answer
559 views

Blacklisting grub packages from installing

I am trying to block GRUB packages from being installed (after having purged them). The problem is virtually identical to Blacklisting packages from installing and even involves GRUB which is exactly ...
1
vote
0answers
508 views

When uninstalling all GRUB packages for EC2 AMI build script, how do I bypass prompting?

When I try to uninstall all GRUB packages from the cloud-image version of Ubuntu I use in AWS EC2, I get an interactive prompt. I need put this all in a script under automation, so prompts need to be ...
5
votes
1answer
390 views

Installing Yaws server on Ubuntu 12.04 (Using a cloud service)

I'm trying to get a Yaws web server working on a cloud service (Amazon AWS). I've compilled and installed a local copy on the server. My problem is that I can't get Yaws to run while running on either ...
1
vote
1answer
678 views

Amazon EC2 : Authentication Failure after error sudo: must be setuid root

I was trying to change permission on a folder in a Amazon EBS volume mounted on a Amazon EC2 running Ubuntu EC2. When I entered the command sudo chmod -R u+rw,go-rw /mnt/my-address I go the ...
4
votes
2answers
2k views

Is my Amazon EC 2 running Amazon Linux or Ubuntu?

I am a little confused here. I created a Amazon EC2 instance with Ubuntu Linux 64-bit 12.04 LTS, now when I SSH into it I get the following but on Amazon Management console I get the following ...
4
votes
3answers
15k views

How to install dpkg-reconfigure?

I want to install dpkg-reconfigure in Ubuntu 12.04 LTS install on Amazon EC2? How to go about it?
3
votes
1answer
3k views

Which user is running tomcat?

I have a Tomcat 7 server running on Amazon EC2 (OS - Ubuntu 12 LTS). How can I find out which user is running Tomcat on Amazon EC2?
2
votes
1answer
1k views

MySQL keeps failing to install

First I clean up previous installation root@ip-10-134-10-182:~# rm -rf /var/lib/mysql root@ip-10-134-10-182:~# rm -f /var/lib/dpkg/lock root@ip-10-134-10-182:~# rm -f /var/cache/apt/archives/lock ...
1
vote
0answers
732 views

How to reinstall mysql without damaging data?

http://stuffthatspins.com/2011/01/08/ubuntu-10-x-completely-remove-and-clean-mysql-installation/ shows how to reinstall everything. I want to do something like this without reinstalling data. ...
2
votes
3answers
636 views

How do I start an SSH session from the Unity desktop with arguments (-i)?

Using SSH in a GNOME terminal is fine. But I want to use it in a Unity window (the location text field, ctrl+l). I need to refer to my .PEM x509 certificate for security reasons to connect to my ...
1
vote
1answer
357 views

Where can I find the mon-* set of Amazon CloudWatch tools?

Once upon a time, based on the large quantity of websites saying that all I needed to install to administer Amazon services including CloudWatch and Auto-Scaling Groups was the "ec2-api-tools" ...
1
vote
1answer
377 views

How can I install rjags on Ubuntu AMI on EC2?

I installed the pre-built Amazon Machine Image with Rstudio Server provided by bioconductor into a free micro instance on EC2. Then I installed JAGS (Just Another Gibbs Sampler to use it via rstudio ...
3
votes
3answers
7k views

Run a script only at the very first boot

Is there an idiomatic way in Ubuntu to run a script only the first time a machine is booted? (EC2).
0
votes
1answer
163 views

Tool to fire up EC2 instance and SSH in?

It's a fairly common thing that I want to fire up a clean EC2 instance of a particular version of Ubuntu (usually lucid or precise) and then SSH in to that instance once it's up. I've got some Python ...
1
vote
1answer
347 views

Can't get juju to deploy, problem with ec2 keypair?

I wanted to give a shot at deploying a Wordpress blog with Juju. Although am very new to Juju and the Amazon EC2, and am having some troubles. I am able to bootstrap an environment like this: juju ...