I'm totally new to AWS.
I managed to have an instance that runs PHPMyAdmin.
then I created an image (EBS AMI) for this instant and could not connect any more to my
phpmyadmin interface.
I know it's really stupid, but I don't know why it happens.
thanks
Make sure all needed services (e.g. ssh, Apache / nginx, MySQL) on your server get started when booting. If you create an AMI of your system AWS will shut down your server for the time the image creation takes place.
So ssh into your instance, take a look at the running processes and start the ones which you miss.
If you are taking an image from the AWS console, all services will be stopped and server will be restarted for the image to be created. However, you need to restart all the services ex: mysql, apache etc.
Related
I'm running an application that is a web app and the backend for an ios app as well as a database in an ec2 instance. Will these processes resume if I stop, resize, and restart my instance? Will I need to go in and run startup scripts?
Any help is appreciated, I'm confused by the AWS documentation as to exactly what happens.
It's just like turning your laptop off and then back on. If you have configured the services to start automatically on boot then they will restart, if you haven't configured them to start automatically on boot then they won't.
This is a function of the software you have installed and configured on the EC2 instances, and whatever Operating System your EC2 instance is running. You won't find much about this in the AWS documentation because it isn't really Amazon specific.
I am testing the free services from Amazon EC2. I followed the manual and was able to access the server. After one minute inside the server, it crashes and I have to close my console and reboot the instance.
By reading the guides from Amazon, I found that I should set the Route Table, which I was not able to find. Maybe the dashboard has changed.
I am trying to setup an amazon ec2 instance for first time.
I've created one with ubuntu 10.4, managed to connect to ssh and installed mongodb, mysql, php and apache which need for my proyect(also python but it is already setup).
Then I associated an elastic ip to the instance, but when I try to open the IP, I can't. It gives timeout.
Could it be that the apache root is not where I think it is?(/var/www/)
You need to check the security group that is associated with the instance. Make sure that you open up port 80.
Also make sure that apache is started, and configured to start on boot.
If you're logged in, you should be able to use wget localhost to verify if apache is serving up pages.
I added a bad script in startup script, turned out this script is blocking and hence ubuntu instance can't boot up to ssh server and I can't ssh into it. Is there a way for me to go to the server console (like from VGA port)? like go to single-user mode or safe mode and fix it?
Thanks in advance.
I don't know of any way to obtain server console access or change boot modes on the EC2 instances...
I had the same issue sometime ago, and I ended up creating a temporary EC2 instance, mounting the root device from the original (failing) EC2 there, modifying the files, then reattaching the device and destroying the temporary instance. Note: you may end up paying more depending on which instance type you launch.
Today is my second day of trying to use amazon and i have started to pull my hairs. I want to set up ftp with amazon. I have signed up with them and and created an instance with amazon EC2. I have downloaded the key and I am able to login with ssh using the through Terminal in my mac. I can create files in the instance through terminal.
The instance is something like following:
Public DNS: ec2-xx-xx-xxx-xxx.compute-1.amazonaws.com
I have created a index.html file at this location via terminal. But I am not able to view it in the browser using following url:
ec2-xx-xx-xxx-xxx.compute-1.amazonaws.com/index.html
I just want to create web services here which I will be using in iPhone.
Also I am not sure how to go forward. How will I get to my local files and upload them to server. In other ftps I could do it using lcd, get, put etc but these commands are not working here. can some one please help me how should I go ahead because at this moment I am just banging my head to wall. Someone please help me.
Thanks
Pankaj
Use scp to copy files over ssh:
scp -i key-pair-file file-to-upload ec2-user#instance-public-DNS:
Notice the colon at the end!
With plain EC2 instances, you also need to install some sort of Web server software to power your Web service, and open the HTTP port in the firewall.
Just in case you plan to write your Web service in Java, I have put together a series of articles (Part I, Part II, Part III) guiding through the basics of installing Apache Tomcat on an Amazon Linux EC2 instance.
EDIT 2014/11/20
Dmitry Leskov is actually the better one. You should use his approach.
Answer from 2012
You first have to setup a LAMP (Linux, Apache, mySQL, PHP) stack on your EC2 instance to run any kind of web service.
This means you have to go trough the following steps:
Create an EC2 instance
Setup EBS Storage for mySQL data
Install mySQL
Configure mySQL
Install Apache
Configure Apache
Install PHP
Configure PHP
If you need a detailed instruction, I'd recommend you to take a look at this: Building EC2 with LAMP.
To transfer files to your EC2 instance you can use any FTP client, which supports SFTP and key pairs (you can also enable PasswordAuthentication for SSH to login with credentials). I'm using Transmit with no problems.
On a related note, I encountered a strange problem where I could not FTP from a PHP script running under apache - but I could if I ran the PHP script as root from the command line. After a day of googling, I found this, which solved the problem.
Disable SELinux. (Security Enhanced Linux)
The temporary solution is:
echo 0 >/selinux/enforce
..which will prove the concept, but will not survive a reboot. There are plenty of resources out there that describe how to permanently disable SELinux.