Questions tagged [amazon-ec2]
Amazon EC2 (Elastic Compute Cloud) is a web service that allows users to rent virtual computing capacity on which they can run their applications. Web service questions are on topic here only if the question is about the operating system or using a PC application hosted there. Otherwise, other sites on the network may be more appropriate
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How do I change my default shell on a AWS instance?
I want to change my shell from the default bash shell to zsh on my Amazon EC2 instances. How do I go about doing it? Thanks!
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votes
6
answers
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How to get Amazon EC2 instance operating system info?
I just setup an EC2 instance running Linux. Is there a way to get the version/distribution of Linux that is running on the instance via the terminal?
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votes
12
answers
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How to install PHPMyAdmin on Linux EC2 instance?
I just finished setting up a default Linux EC2 instance and would like to install PHPMyAdmin. I already have Apache and MySQL installed but cannot seem to install PHPMyAdmin. I tried using
sudo apt-...
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votes
2
answers
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What is the difference between Amazon Linux and RedHat Enterprise Linux on AWS EC2?
I am very new to this and I don't even know if I should ask this question here or on Stackoverflow or ServerFault.
The Question
I wish to set up a EC2 instance on Amazon Web Services. My ...
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votes
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answers
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How do I use my keyfile to sftp transfer data from one server to another
I cant scp, the other server only takes sftp connections.
Currently, I am trying to do
sftp [email protected]:/files> put -r ~/
-i keyname does not work, just resolves with illegal option -- i....
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25
votes
3
answers
5k
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Changed the PATH, now I'm getting "command not found" for everything
Amazon Linux Server, connected with SSH:
I tried to change the PATH for the apache user by making some changes in /etc/environment (PATH=$PATH:/opt/openoffice4/program) and /etc/sysconfig/httpd (...
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votes
2
answers
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unable to create txt record using amazon route 53
I can't add the following TXT record to my Route 53 DNS config:
v=msv1 t=whatever
Doing so produces the following error:
The record set could not be saved because:
- The Value field contains ...
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22
votes
6
answers
31k
views
Moving EBS snapshots to Glacier
I have hundreds of large EBS snapshots I need to move to Glacier.
What's the best way to go about doing this?
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votes
5
answers
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how to make salt-minion generate new keys
I am playing around with salt and what my problem is launching instance from Amazon EC2 AMI results minion keys being the same. How do I refresh individual minion to get it's new identity (key)?
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17
votes
3
answers
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X11 forwarding from Amazon EC2 AMI
local$> echo $DISPLAY
:0.0
local$> ssh -X -i PEMFILE ec2-user@AMAZONEC2_AMI
[ec2-user@REMOTE_AMI ~]$ echo $DISPLAY
[ec2-user@REMOTE_AMI ~]$ sudo grep X11 /etc/ssh/sshd_config ~/.ssh/...
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3
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Can I install EC2 Amazon Linux OS locally on virtual machine?
Can I download and run any Amazon Linux os on my local machine?
If yes:
Then from where I can download this?
And can I get image ready for VirtualBox?
If no:
What is the equivalent OS that matches ...
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14
votes
4
answers
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views
Why can't I ssh-copy-id to an EC2 instance?
I have a ubuntu Natty instance on EC2, and I can SSH into it by
ssh -v -i ec2-keypair ubuntu@[email protected]
But I'd like to set up password less sshing. So I tried these ...
- 507
14
votes
1
answer
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What's a good way to install "build essentials" (all common useful commands) on a blank EC2 Linux server?
I want to get some "build essentials" (like gcc, make, etc.) on an empty micro Linux box. Seems inefficient to spend my time trying to try installing one thing, then realize I need gcc, then realize ...
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1
answer
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How to stop jbd2 to release a device
In an AWS EC2 instance, we have multiple EBS volumes. When I try to detach any of them, the umount command works, but the device can't be detached.
# grep -c xvdj /proc/mounts
0
However, lsof ...
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13
votes
1
answer
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Setting correct permissions for uploading files
I have a php script that uploads a file to a directory called "uploads". The only way I can get the upload to work is if I do:
chmod 777 uploads
I know this isn't correct but I don't know what ...
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12
votes
1
answer
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Where to find log messages in tomcat7 installed on Amazon EC2?
I have installed Tomcat 7 on an Amazon EC2 running Amazon Linux. I have installed a WAR file on tomcat and I am using java.util.logging for logging messages in my code. Now how to access those log ...
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votes
5
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How do I copy files into `/var/www` with WinSCP?
When I try to place my web files into /var/www in apache on my ec2 Ubuntu instance it is giving me an error stating that I don't have permission.
Permission denied.
Error code: 3
Error message from ...
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11
votes
3
answers
47k
views
How to ssh from one ec2 instance to another?
I have created two EC2 instances on AWS. I created a key pair for each of them. I downloaded the .pem private keys and converted them into .ppk format. I can connect to each of my ec2 instances using ...
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votes
2
answers
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getting my domain name to point to my amazon ec2 instance
I'm trying to get my godaddy.com domain name pointed to my Amazon EC2 instance and am having some difficulty.
I created a hosted zone for my domain name on route 54 and set the namesevers up as the "...
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10
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1
answer
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Amazon EC2 prompt password when sudo
When I log into an ec2 instance via ssh using keypair (logged in as ec2-user user), I am able to execute sudo commands without typing a password.
How can I configure ec2 instance to prompt for a ...
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votes
1
answer
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How do I check the event-history of a (possibly deleted) ec2-instance?
I was running some scripts on an instance on the AWS free tier that I may I have deleted but I am not sure when I deleted the instance.
I have the public DNS of that instance and I'm unable to find ...
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9
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2
answers
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"Cannot allocate memory" while no process seems to be using up memory
I am not competent on server issues, any help is much appreciated. When try to start a python/django shell on a linux box, I am getting OSError: [Errno 12] Cannot allocate memory.
free -m seems to ...
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votes
6
answers
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How do I change the resolution of an Amazon EC2 Windows Machine?
(I debated between posting this here, ServerFault, and StackOverFlow. Settled for this. Hopefully it's in the right place.)
We run our UI testing suite using Selenium Grid 2 with an Amazon EC2 ...
- 235
8
votes
6
answers
52k
views
Accessing Amazon EC2 in Filezilla SFTP
I need help/guide how I can open my ssh access from a GUI or Filezilla.
Here's the scenario my developer just left me with the login info to my Amazon EC2. Now I am finding difficulties in ...
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8
votes
4
answers
7k
views
Lost sudo/su on Amazon EC2 instance
I have an Amazon EC2 instance. I can login just fine, but neither "su"
nor "sudo" work now (they worked fine previously):
"su" requests a password, but I login using ssh keys, and I don't
think ...
user59328
8
votes
2
answers
8k
views
How to setup EC2 spot instances with elastic IP? [closed]
I would like to set up an EC2 spot instance with an elastic IP. Here's the catch: if a spot instance is interrupted and resurrected later,
Is the ip reassociated to the new instance?
Am I billed for ...
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8
votes
1
answer
9k
views
Can't connect to AWS EC2 instance from internet
I created my first EC2 instance (linux) using Amazon Web Services, but I can't connect on any port from any host. I changed the inbound rules on my security groups to allow connections from any ip 0....
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How can I open listen ports on an Amazon EC2 instance?
I'm using Amazon EC2 micro instance with Ubuntu 11.04 on it (official AMI by Canonical). I have created a new security group for this instance:
Inbound:
22 (SSH) 0.0.0.0/0
80 (HTTP) 0.0.0.0/0
...
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7
votes
2
answers
5k
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What actually is Amazon EC2's 'pay per hour' for on demand instances? [closed]
I'm thinking to host my ROR website on Amazon EC2. I wont be needing a S3 as of now.
But when I check the their pricing it's like
Micro - $0.020 per Hour
I don't get this per hour billing.My ...
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1
answer
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Is listening on a port on the localhost of a server the same as listening on that port of the server's public IP address?
I set up a free Amazon EC2 instance in order to use a Node app outside of my localhost environment.
The instance is allocated a public IP address at launch, mine for example being 54.187.31.42. Does ...
user317572
7
votes
4
answers
16k
views
Port 80 not accessible Amazon ec2
I have started a Amazon EC2 instance (Linux Redhat)...
And Apache as well.
But when i try:
http://MyPublicHostName
I get no response.
I have ensured that my Security Group allows access to port 80....
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7
votes
1
answer
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views
What is the difference between Public DNS and public IP in AWS ec2?
I found that in ec2 there are two things
public DNS and public IP
ec2-XX-XXX-190-196.ap-southeast-1.compute.amazonaws.com
and
xx.255.190.196
Both can access through ssh and ping.
So what are ...
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How can I get ec2 command run in git-bash?
I installed ec2 command line tools on windows this morning. When I try to run a command ec2-describe-instances in the git bash, I get this output:
Exception in thread "main" java.lang....
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votes
2
answers
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Amazon EC2 Instance Continually Loses Connectivity
I am currently running wordpress on an Amazon ec2 instance, which runs fine with no problems most of the time, but occasionally outside connection to the instance shuts down. I can't access it over ...
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votes
7
answers
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What can cause a MAC Address to change?
I would like a summary of common scenarios that can cause a MAC address to change?
Does hopping on a new network give you a new MAC?
Does installing a new network device (e.g. WiFi card) cause a ...
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votes
3
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4k
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How to stop adding IP from EC2 to known_hosts for ssh?
I start/stop lots of new instances as I'm learning to use Amazon EC2. Every temporary instance is added to the known_hosts file. Is this ever a problem for others who use EC2 a lot?
I'd like to tell ...
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votes
1
answer
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views
How to solve 404 Error in AWS apg-get for debian jessie fetch?
I have a Linux AWS machine and i started having this issue a few days ago:
Err http://deb.debian.org jessie-updates/main amd64 Packages
Err http://deb.debian.org jessie-updates/main amd64 Packages
...
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votes
4
answers
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VNC : Console does not accept any keyboard/mouse inputs
I have used and configured vnc many a times before but facing this strange issue for the first time. Here are my steps of configuring vnc on Amazon (RHEL 6.2 64-bit, AMI: ami-2fd5441f):
Server ...
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1
answer
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Unable to mount Elastic File System on EC2 (mount.nfs4: Connection timed out)
I am trying to mount an EFS file sytem on an EC2 instance. Here is what I'm doing:
Connect to EC2 instance using
ssh -i "MyKeyPair.pem" [email protected]. ...
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6
votes
1
answer
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views
How do you route within an Amazon VPC subnet?
I have an Amazon Virtual Private Cloud that looks like this:
10.40.1.1 Internet Gateway
10.40.1.5 My OpenVPN Instance
10.40.1.100 My Windows Box
What I want is traffic from the Windows box ...
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votes
1
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Can Windows Server 2019 on EC2 run WSL 2
I want to create a VM on EC2(Microsoft Windows Server 2019 Base - ami-0eaa025a752a23c5b) that can run windows container and linux container at the same time. I know WSL 2 can support docker container ...
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votes
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How can I get Wireshark with a GUI on my EC2?
I have an Amazon EC2 machine that I'd like to run Wireshark on, using X forwarding. Unfortunately, the only Wireshark packages found with $ yum search wireshark are:
wireshark-devel.x86_64
wireshark....
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How to yum update PHP to version 5.4 on Amazon Linux?
I need PHP 5.4 installed in an Amazon Linux instance.
Presently we have:
root@ip-10-138-1-229 webapps]$ php -version
PHP 5.3.29 (cli) (built: Aug 20 2014 16:41:34)
Is there a yum package for this?
...
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AWS EC2 Linux headless Firefox issue: Xvfb: undefined symbol: pixman_glyph_cache_create
I have been using AWS EC2 Linux for a while for a headless Firefox/Selenium task. I built it using the instructions from http://itsallabtamil.blogspot.com/2013/02/setting-up-chrome-firefox-ec2-...
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yum install for postgres 9.6 rpm on Amazon Linux 2 on EC2 is failing due to dependency
yum install for postgres 9.6 rpm on Amazon Linux 2 on EC2 is failing due to dependency /etc/redhat-release
Below is the log
sudo yum install https://download.postgresql.org/pub/repos/yum/9.6/redhat/...
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How to point domain name to Amazon EC2 subdirectory
I'm having trouble pointing a domain name to a subdirectory on an Amazon EC2 instance.
FYI - I'm not too experienced with DNS or networking ...
So jumping right in ...
I set up an Amazon EC2 instance ...
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votes
1
answer
6k
views
Cannot install Nginx on AWS EC2 AMI2 - Topic :topic: is not found
I would like to install Nginx as a reverse proxy on my AWS EC2 (OS: AMI2) instance.
When I try to install nginx, I get told that nginx is available in Amazon Linux Extra topics...
sudo yum install ...
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votes
2
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views
How to view contents of an EBS volume attached to an EC2 instance via Terminal?
I've setup an EC2 instance and have 2 EBS volumes attached to it. I would like to view the contents of each volume. How do I view it via the terminal (cd /somePath)? I've already have a valid SSH ...
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votes
1
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How is Amazon Lightsail cheaper than Amazon EC2? [closed]
Okay, I don't really now where to post this question.. It wasn't received well on SO so I am trying here.
There is only one apparently abstract upside of using Lightsail, simplicity, or significantly ...
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votes
1
answer
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Problems to connect with remote redis-server
I have two Amazon-EC2 instance let's say A and B.
B has redis-server installed.
I want to access B from A So I am trying
A$ redis-cli -h B_ip -p 6379
Could not connect to Redis at B_ip:6379: ...
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