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

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437 views

Synchronise clocks on ubuntu running in EC2?

I've got three servers running on AWS EC2 using official Ubuntu AMIs using paravirtualisation. I have noticed their clocks are out of sync by about a minute. NTP is not installed by default in the ...
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1answer
53 views

cannot add swap with fallocate on EC2

I'm trying to setup the swap in /etc/rc.local this way: sudo fallocate -l 8192M /mnt/swapfile1 sudo mkswap /mnt/swapfile1 sudo swapon /mnt/swapfile1 This however returns an error: fallocate: ...
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1answer
3k views

Need help with getting NoMachine working on Ubuntu 14.04

I’m trying to get NoMachine working on a AWS EC2 instance with 14.04 Trusty Tahr. I’ve used the instructions from: https://help.ubuntu.com/community/NomachineNX ...
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1answer
38 views

How to install OpenStack/Eucalyptus on AWS using EC2 instances

I would like to build a private cloud platform on AWS using either Openstack or Eucalyptus, but don't have a lot of experience in neither. How should I proceed?
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1answer
21 views

Release upgrade for Ubuntu EC2 AMI launches SSH on a different port

sudo do-release-upgrade on a Ububtu EC2 AMI shows the following warning message, is it safe to continue or what would be the preferred procedure. cat /etc/lsb-release DISTRIB_ID=Ubuntu ...
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13 views

Erlang disappeared from /usr/bin/erl

The setting I have downloaded rabbitMQ and used it on an EC2 14.04 machine for a few days. The setting was simple - I downloaded the Binary .tar.gz, opened it, and typed: sbin/rabbitmq-server ...
2
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1answer
295 views

NTP: Use unprivileged ports

I have had some trouble with ntdpate on EC2, which was solved by using the -u argument for unprivileged ports: $ sudo ntpdate -u ntp.nasa.gov time-b.nist.gov I know that ntpd is better than a ...
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4answers
4k views

How do I know what Ubuntu AMI to launch on EC2?

When I want to launch an instance of Ubuntu on EC2, how do I find the right one? There are thousands of public images that have "Ubuntu" in their name. I am only interested in running the Official ...
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0answers
64 views

EC2.micro nginx php-fpm error “upstream timed out”

I've been setting up a new server on AWS using a t2.micro instance and Ubuntu. After setting everything up the site worked fine, but now it's throwing errors. There is no traffic on the site at the ...
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1answer
56 views

Recursive display of remote desktop screen

I tried to set up remote desktop to connect to an Amazon EC2 ubuntu instance. The steps are: (1) sudo apt-get install --no-install-recommends lightdm lubuntu-desktop tightvncserver (2) create a file ...
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1answer
41 views

Is /etc/X11/xinit/xinitrc. supposed not to exist?

I'm trying to connect to Amazon EC2 Ubuntu 14.04 instance through VNC but always fail (only grey background). Some articles say we should have a line in .vnc/xstartup which reads exec sh ...
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1answer
471 views

unable to send email

I'm getting an error message: mail: cannot send message: Process exited with a non-zero status Command date | mail -s "test" -r some@myemail.com some@myemail.com mailutils install via this ...
2
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1answer
48 views

Apt-get wants me to remove packages (from r-cran) that I need

Why is apt-get telling me to remove packages that I need? And how do I tell it to shut up? I'm running an EC2 with Ubuntu 14.04 and R 3.1.2 and Rstudio-server. I just ran apt-get update and upgrade ...
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0answers
67 views

Problem installing honeypots on Ubuntu

I'm relatively new to Unix/linux and the CLI. I'm working on a project to set-up a honeypot Dionaea on Ubuntu 14.04.1 LTS on my Amazon EC2 VPS. For doing that I follow a tutorial. But it seems that ...
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0answers
56 views

Why `apt-get dist-upgrade` in EC2 image does not update the kernel?

I've built a system running Ubuntu 14.04 on EC2, using the AMI from Ubuntu's cloud-images repository. The AMI includes kernel 3.13.0-37, but 3.13.0-39 is available as an update. After running ...
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1answer
45 views

How do I install ec2-api-tools in 14.10 utopic?

$ sudo apt-get install ec2-api-tools Reading package lists... Done Building dependency tree Reading state information... Done Package ec2-api-tools is not available, but is referred to by another ...
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0answers
65 views

How to harden/tune Ubuntu then package it back into an ISO

I am interested in delving into Amazon Web Services (AWS), and would like to create a few EC2 instances from my own hand-tuned instances of Ubuntu Server 14.04.1 LTS. What I would like to do (I ...
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0answers
73 views

Scheduled Cron Back up from EC2 to S3

I have created a script for scheduling sql back ups and store in Amazon S3. Below is the script that I used for taking backups. DATABASES="testdb" testdb_USER=root testdb_PW=root ...
1
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1answer
34 views

CronJob not working as expected

I generated a cronjob line for crontab -e with Crontab Generator: * */2 * * * curl http://www.example.com/cron.php >/dev/null 2>&1 I was expecting that it should run every 2 hours. But in ...
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2answers
355 views

Can't run ntpdate on EC2

I have had some serious issues with time accuracy on my Ubuntu EC2 machines, with drifts of more than 60 seconds. A possible solution is running ntpdate or ntp, but I can't get them to work on EC2: ...
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1answer
365 views

How to choose the VGA when setting up the X Server?

I have 2 options of VGA: lspci | grep VGA 00:02.0 VGA compatible controller: Cirrus Logic GD 5446 00:03.0 VGA compatible controller: NVIDIA Corporation GK104GL [GRID K520] (rev a1) It's an instance ...
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0answers
46 views

how to set up group level administrator in linux ubuntu!

In my application there is multiple groups and n number of users. What i need is to assign a particular/multiple user as group administrator. Group level administrator is just a user that has ...
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1answer
46 views

Mount and external hard drive on an Amazon ec2 Ubuntu server

I'm using the amazon EC2 servers for the first time, so I'm sorry if i'm not understanding something obvious. I alredy created and connected to an EC2 instance with a ssh connection. I'm trying to ...
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0answers
102 views

initramfs-tools irqbalance apt-get upgrade error

I am getting an error when I do sudo apt-get upgrade. I did a do-release-upgrade and went into a lot of issues. Finally the problem has been reduced to: sudo apt-get upgrade Reading package lists... ...
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1answer
157 views

Ubuntu EC2 compatible kernels

I am trying to create an Ubuntu 13.10 64 bit AMI with the paravirtual type of virtualization. I have not had problems with the hvm virtualization. I can't figure out what kernel I need to use. For the ...
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1answer
362 views

AWS Elastic Beanstalk Command Line Tool setup

I have the AWS Elastic Beanstalk Command Line Tool running on my Ubuntu 12.04 LTS Virtual Machine but I can only get it to work if i set the location of EB to the exact website folder I am going to ...
2
votes
1answer
118 views

post-receive: No such file or directory

I'm getting an error when trying to push to a remote Amazon EC2 (Ubuntu Linux) instance. I've given all related directories and files full permissions. I'm trying to use a post-receive hook to move ...
0
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1answer
74 views

Preview .html file from remote AWS EC2 instance on local machine's browser

From this and this I've gathered that I should ssh into my ec2 instance from my Mac by: ssh -C -c blowfish -X -i user.pem user@hostname.com This accomplishes X11 forwarding. Afterwards, how do ...
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0answers
106 views

How to configure Postfix, stunnel for AWS SES?

I have been trying to set up SES on our EC2 running ubuntu. I have followed the instructions on their docs page but not able to figure out what's wrong. I'm a newbie that's why i'm looking for a ...
35
votes
5answers
145k views

Adding SSH Keys to Authorized_Keys

I have an Ubuntu server on Amazon EC2, that I use for development, and today I stupidly cleared everything out of the authorized_keys file for SSH. Luckily I have an SSH open, so I am still ...
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57 views

Apache Virtual Hosts on Ubuntu not working

I have created virtual hosts on amazon instance ec2 by following this tutorial how-to-set-up-apache-virtual-hosts-on-ubuntu-14-04-lts I also created 111.111.111.111 example.com on my windows hosts ...
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1answer
151 views

Only Terminal windows appear on TightVNC

I use ubuntu server provided by amazon ec2. I want gui so that i install ubuntu-desktop on server and edit xstartup. But when i connect to my server through TightVNC it shows only terminal windows. ...
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0answers
90 views

installing vmware ova on amazon aws

I am trying to import a vmware ova on amazon aws but experiencing issues. After importing (or my attempt to import), I can no longer access the server via SSH even though the amazon AWS console shows ...
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0answers
186 views

Upstart script on first boot with cloud-init

I'm trying to launch an EC2 instance where I need to perform some initial setup of the instance (download and install packages, configure directories, etc.) as well as start a web service. The initial ...
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0answers
56 views

Natting with Ubuntu 14.04 won't forward the packet to the originator

I have succeeded in creating a VPN on amazon VPC using ubuntu 14.04 with openswan. My subnet on amazon is 192.168.254.0/24. My gateway which is in this case ubuntu 14.04 has 192.168.254.17 IP. The ...
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3answers
12k views

Why did installation of MySQL 5.6 on Ubuntu 14.04 fail?

I wanted to get a look at MySQL 5.6 on Ubuntu 14.04 just out of curiosity. And based on this article it certainly looked like installation should be simple and straightforward. So I fired up an AWS ...
2
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1answer
1k views

After install Google Chrome in EC2 won't open from Ubuntu Server 14.04 LTS (HVM) command line [duplicate]

I have installed Google Chrome with following command line: $ wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add - $ sudo sh -c 'echo "deb ...
2
votes
3answers
241 views

Completely Messed up sudoers file and su Operations

I am in a really bad condition right now.I am jotting down the steps I did to get myself into this situation. My objective was to disable sudo on my machine. I am running Amazon Ec2 Ubuntu 12.04 I ...
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0answers
125 views

ec2, hdfs and hostnames are not resoving

I am trying to setup cloudera 5 hdfs on ec2. I am using rout53 for dns. Below are my modifications. cat /etc/hostname master.hdfs.cloudera.aws.development.west cat /etc/hosts 127.0.0.1 localhost ...
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0answers
11 views

Ubuntu-Files become read only in production.App down

I am a newbie and I had posted a question on stackoverflow and I got a satisfactory answer.Now the site is back online. The issue was that the files such as thin.log and all the app files had become ...
0
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1answer
237 views

Cant have passworldess ssh between 2 ec2 servers - Permission denied (publickey)

I created 2 aws ubuntu 12.04 servers I uploaded the id_rsa and id_rsa.pub files to both servers I ran the below on both servers chmod 600 id_rsa* eval `ssh-agent -s` ssh-add ~/.ssh/id_rsa What ...
6
votes
5answers
20k 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 ...
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0answers
46 views

Default mysql password for Amazon Ubuntu Apache Php MySQL - 25 - 05 - 2013 (ami-3b117a52)

Hi I just launched a new instance of Ubuntu Apache Php MySQL - 25 - 05 - 2013 (ami-3b117a52) Any idea what could be the default username/password of pre installed mysql? I can log into it by typing ...
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5answers
11k views

vsftpd installation not working on virtual server as of 14.04

The process I have used for installing vsftpd since 12.04 no longer works. I get the error stop: Unknown instance when restarting the service. I believe this means the configuration is wrong, but I ...
2
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1answer
124 views

RDP to amazon EC2 Ubuntu instance

I've set up an Amazon EC2 instance. I allowed RDP from any ip in the security groups, installed and started xrdp and added a user with a new password. However when I try to remote connect, the ...
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1answer
596 views

SSH remote commands very slow after migrating from 12.10 to 14.04 on EC2

I had a number of 12.10 machines running on EC2 and provisioned them using scripts built around: ssh scp rsync Now I have replaced most of my 12.10 machines with 14.04 machine and am finding that ...
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1answer
2k views

Installing and configuring Snort, Barnyard2 on ubuntu 13.10 in AWS EC2 VPC

I need you help after searching a whole lot and asking AWS my problem is not getting resolved, so I have come here for your help. I have a AWS VPC setup with all ubuntu servers I have a NAT server ...
2
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0answers
81 views

How to access Amazon EC2 instance from Ubuntu 13.10?

I have an Amazon EC2 (Windows) instance which has been created for me and I have public DNS, public IP and the public key. I would like to RDP to this instance from Ubuntu 13.10. I have recently ...
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1answer
124 views

ec2 ubuntu access requesting password after ssh update

I was trying to set up an sftp account and one of the forums suggessted that we comment out PAM access. I now think that is how the user ubuntu has access and so I can no longer access my ec2 instance ...
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81 views

EC2: Are frequent apt-get upgrades a good idea? [closed]

In my Ubuntu Desktop, I often run: sudo apt-get update && sudo apt-get upgrade && sudo apt-get autoremove To keep my machine updated. Is this a good idea in an EC2 production ...