Amazon Elastic Compute Cloud (EC2) provides self-service, on-demand, pay-for-what-you-use computing infrastructure resources.

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aws ec2 security group and centos ip tables

I try to change the SSH port from 22 to another port (218). In AWS EC2, I shall add the rules in security group or in IP Tables? Is there any guideline/references recommended for EC2 Security ...
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0answers
16 views

Connecting to a PostgresSQL Database Instance on Amazon Web Services

I've been trying to use the instructions found on amazon to set up my PostgreSQL database instance and connected it to PG Commander. After getting an initial connection error I checked to see if ...
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3answers
2k views

Production Instance : CLOSE_WAIT Connection Issue

I am using 10EC2 Instances behind 1 ELB. And ELB configured 80 to 8080 and 443 to 8080 port. And all 10EC2 instances having installed with Apache Tomcat, total request on ELB around 8000 to 10000 in ...
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1answer
21 views

Unable to connect the Ubuntu EC2 instance to VPC LAN on AWS using secondary NIC adapter?

Infrastructure setup: VPC is created with 192.168.254.0/24 netwok Private subnet within VPC (Virtual Private Cloud) is created with 192.168.254.0/25 network Public subnet within the VPC is created ...
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2answers
3k views

Setting Up ELB with SSL - What is Backend Authentication?

I started setting up Amazon's Elastic Load Balancing Service for my server pool and I need to setup HTTPS/SSL. I have all my SSL Certificates setup, but then I come to the step for backend ...
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2answers
68 views

504 gateway timeout when accessing by hostname, but not by IP

I'm using Amazon EC2 with Elastic Load Balancing. On my web-based application, end-users connect to app.myapp.com get a 504 gateway timeout error when performing certain operations like converting a ...
11
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4answers
11k views

How do I Install Intermediate Certificates (in AWS)?

I have installed private key (pem encoded) and public key certificate (pem encoded) on Amazon Load Balancer. However, when I check the SSL with site test tool, I get the following error: Error ...
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1answer
811 views

Anonymous access to S3 bucket only from my EC2 instances

Is there a way to let anonymous access to a certain S3 bucket only from my EC2 instances (all of them) within a single AWS account? I know I can use IAM roles, but I found it's just too many moving ...
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1answer
32 views

Rebooting AWS EC2 instance not coming back online

About 40 minutes ago, I restarted my AWS EC2 instance using the admin panel. A moment later, the instance state was "running" again, and the status checks continued to pass. After about 20 minutes, ...
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0answers
9 views

Access jboss server deployed on Amazon Ec2

I have deployed Wildfly 8.0.0 on an EC2 instance. I have added appropriate rule to open port 80 for inbound traffic. I am able to access my web application locally. But when I try to access it in a ...
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2answers
1k views

ssh timeout issue connecting to an EC2 instance on OS X

I am new to AWS and not a networking expert but curious to know more about it. I created a VPC with a public subnet only. Then i created an EC2 instance using an Ubuntu 14.04 64-bit pv AMI image ...
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1answer
127 views

Can't use a Box in Amazon VPC subnet to connect to the other side of the site-to-site VPN tunnel which is already up

This is what I have done created VPC 192.168.0.0/16 created subnet 192.168.5.0/24 created internet gateway attached internet gateway to VPC created routing table set destination route 0.0.0.0/0 to ...
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0answers
18 views

How to let php write to www dir in EC2 server? [on hold]

I'm using some sort of third party API and the API is logging to filesystem. Logging constantly cause warning on my page saying 'can't write file'. How is the correct way to give file/directory ...
0
votes
1answer
29 views

Pricing of Key Pairs and Security Groups on AWS?

My free AWS account expired. I deleted all S3 and EC2 resources, but am wandering if I can leave the Key Pairs and Security Groups without having to pay for them. (My account resources look like this ...
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3answers
2k views

How to Setup VPN server in Windows Server 2008 on Amazon Cloud E2?

I have servers in Amazon Cloud E2 with Windows Server 2008 R2. I want to setup a VPN server. Can any one guide me? Because as per the MS articles I completed the steps but I am not able to connect ...
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1answer
1k views

upgrade CentOS from 6.5 to 7 in an EC2 Instance

How can I upgrade CentOS from 6.5 to 7.0 under Amazon Web Services EC2 instance? I have added the redhead upgrade tool to my repository and installed it, called the preupg and then imported the ...
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0answers
18 views

The remote destop screen is always a grey background [migrated]

I used the methods described in: http://www.serverwatch.com/server-tutorials/setting-up-vnc-on-ubuntu-in-the-amazon-ec2-Page-3.html and reliable virtual desktop environment for Amazon EC2 Ubuntu to ...
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2answers
40 views

AWS EC2 Auto Scaling Groups, RDS, Route 53 and Constantly changing IP addresses

I setup an auto scaling group on EC2 along with an RDS Postgres instance. I am not using ELB. Maybe I should be... The challenge is that every time a new EC2 instance is created it assigns a unique ...
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0answers
19 views

amazon linux yum update changed sudo root permissions [migrated]

I ssh'ed into my server, ran sudo yum update, and now I'm asked for a password to sudo anything. Looking back through update logs, I noticed this: /etc/sudoers.d/cloud-init saved as ...
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0answers
22 views

Creating a Remote Desktop Session from within an EC2 server, not to it

Ok, I'm having problems answering this because I can't figure out how to word it. Most questions about "remote desktop" and "ec2" focus on remoting into an ec2 instance, which isn't necessarily what I ...
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1answer
37 views

Determining the old MX record [duplicate]

Our sysadmin created our mailserver years ago before he left. We recently decided to use gmail as our mail app and they required us to change the MX record to point to them on amazon route 53 app. I ...
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4answers
381 views

Setup Apache in Amazon AWS

I tried to setup apache 2.2 in amazon aws using amazon ami. i did installed httpd and php and congirue http.conf to use /var/www/html. Then put file index.html on that folder. But when i tried to use ...
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0answers
39 views

Amazon VPC NAT performance problems

I have a set of servers inside an Amazon VPC, whose job is to get image files from S3 and process them. The S3 downloads would frequently stall, sometimes for over 2 minutes, but all would eventually ...
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2answers
42 views

“Cannot open SSH Tunnel” on MySQL (corrected)

(help, patience and mercy... begginer lost haha) -Ok heres the deal, im trying to connect a EC2 Instance to MySQL throught SSH in MySQL Worckbrench -I set up the configurations this way SSH ...
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0answers
32 views

Turn on internet on ec2 Amazon [closed]

I am new in AWS, so sorry for my noob-question. I have ec2, elastic ip, all out-connection in rules, but I cant ping google, for example. I read this, so I need do everything line by line? Can ...
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0answers
23 views

“Cannot open SSH Tunnel” on MySQL [closed]

I have this problem: With this configuration:
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1answer
2k views

EC2 instance always ask me to enter passphrase for the pem during connection

The pem file is generated by AWS console I was able to connect using the EC2 remote web interface, using the same pem file The permission of pem is 600 already Error.. ssh -i ~/test.pem -v ...
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votes
2answers
221 views

Amazon EC2 VPC: NAT instance download speed performance drop

I have a set of servers inside Amazon EC2 in VPC. Inside this VPC I have a private subnet and a public subnet. In the public subnet I have set up a NAT machine on a t2.micro instance that basically ...
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2answers
72 views

installing Abbyy ocr server on Amazon — incompatible GLIBC

I'm trying to run ABBYY server (version 10) in Amazon EC2 instance. At home, I realized that Abbyy requires a different (lower) GLIBC version than the one that comes with Ubuntu 12.04. It installed ...
0
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1answer
30 views

EC2 Failing Load Balancer Health Check

One of my projects is an internal web app which we are putting behind a load balancer. As of now there is only one ec2 (will be more in production) and the load balancer is not able to reach the ec2. ...
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1answer
68 views

Why the time taken to fetch results of a query for 10,000 times from a RDS is so uneven? (experiment)

tl;dr : Why the time taken to fetch results of a SELECT statement for 10,000 times from a RDS when requested from an EC2 is so uneven? Updated the question with results of small and medium RDS ...
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2answers
54 views

How to setup a Domain Controller in the cloud

We are implementing a new Windows Server 2012 R2 domain controller for our 2 small offices, and we want to set it up on Amazon EC2. I have read that with this type of setup you normally use a VPN. How ...
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1answer
39 views

How to point AWS EC2 to Domain name server [closed]

I have amazon free tier ec2 account. Have deployed my java EE application into apache tomcat installed in AWS. I have created new elastic IP and associated with the public DNS of the AWS. Now I can ...
0
votes
1answer
19 views

30GB EBS Backed Ubuntu server showing 7.74GB in landscape-sysinfo

I created a ec2 instance with 30GB of EBS volumne. However when i SSH into my ec2 instance, the landscape-sysinfo says usage of 9.7% of 7.74GB. Wasn't it suppose to be 30GB instead of 7.74GB System ...
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1answer
2k views

EC2 instance is blocking all outbound connections, how to diagnose/fix?

My EC2 instance is blocking all outbound connections. wget http://www.google.com ==> Hangs ping google.com ==>hangs ssh user@anyserver ==>hangs I ran : sudo iptables -F to eliminate all ...
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1answer
193 views

Error after installing mysqlnd_ms

I am working on Amazon EC2 using the Amazon Linux AMI which is based on CentOS. I have installed php54 and php54-mysqlnd. Then I do a sudo pecl install myslqnd_ms. This installs fine. I add the ...
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votes
2answers
1k views

cannot connect to MS FTP 7.5 on Windows 2008 on Amazon EC2 instance

I have just installed the MS FTP 7.5 upgrade on my Windows 2008 Server (Service Pack 2) running on an Amazon EC2 instance. In the FTP Firewall Support settings for the server in IIS Manager I have ...
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0answers
13 views

VPC DHCP Option Sets Missing Option 3 Router

Maybe I'm missing something, but why can you not set your option "003 Router" in the DHCP configuration in EC2? http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_DHCP_Options.html I'd like ...
0
votes
1answer
872 views

Problems to connect Java visualVM to a EC2-instance

I'm trying to profile a AWS EC2 instance via visualVM. The instance is in a securitygroup which allows all connections and i'm runing jstatd with a grant codebase ...
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0answers
63 views

apache is utilizing 100% of cpu usage on m3.xlarge ec2 instance running centos - how to tune apache?

I have recently migrated to amazon. I have m3.xlarge maching with 4 cpu cores and 15 GB RAM . But my site goes down suddenly due to 100 % cpu utilization. top command says apache is utilizing almost ...
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0answers
28 views

My mail server from ec2 becomes unresponsive (can't ssh, nor manages mails) after 2-3 days

Hy! I have configured my server with http://www.iredmail.org/ and everything worked nice for 1-2 days and then it stopped working. Everything is unresponsive. SSH hangs; Web server interface ...
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0answers
44 views

Mcrypt PHP extension fail on PHP 5.5 Amazon Linux

I'm installing laravel framework on my Amazon Linux Server, But once i compose and Laravel finish installing, laravel ask for Mcrypt PHP extension. then when i try to use command line to install ...
0
votes
1answer
51 views

Enabling TLS1.0? Cannot communicate securely with peer: no connection encryption algorithms

For over a year I have been running a photo based website that allows customers to order prints, which are subsequently fulfilled by a printing company. Orders are posted in XML format to a ...
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0answers
10 views

ModSecurity on Apache 2.2 in EC2 - HTTP Status 413 messages dropped

Hi I am running Mod_Security on Ubuntu instances in EC2 behind an Elastic Loadbalancer. The app is a Ruby App. I have set SecRequestBodyLimit 293601280 When I upload files below that size, they are ...
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0answers
101 views

EC2 Ubuntu SSH Stops Working

I use about 15 EC2 instances to run some services. They are hosted on EC2 and run Ubuntu. Every once in a while the SSH stops working and the "Reachability Status" in the EC2 console shows that it is ...
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0answers
48 views

How best to maintain a recent bash version on amazon linux?

I require Bash 4.2 or higher. Amazon Linux default repositories only provide Bash 4.1. I have done some searches and can not find a yum repository for recent versions of Bash. I don't want to compile ...
0
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1answer
29 views

Amazon EC2: Not able to login(RDP) to Instance after migrating root ebs volume.

I am trying to access my windows instance but I am unable to login (RDP) into it. What I have done is I have taken up a snapshot of a root EBS volume and attached that to newly launched instance. The ...
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0answers
17 views

Software RAID0 on ephemeral storage for Server 2008 on boot

I have a c3.large instance which I would like to run the two ephemeral drives in a striped raid configuration. I am able to do this via command line and the disk management msc, but I have not been ...
4
votes
2answers
1k views

how to collect and aggregate logs from multiple machines in Amazon AWS environment

We have multiple Ec2 servers running and they have a tendency to be started and shut down at unpredictable times (based on load etc). What is the best way to collate and aggregate logs from them in ...
0
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1answer
853 views

SMTP 550 5.1.1 error when sending email with postfix via amazon SES

I've been following this manual starting at page 26. First I've already made a tunnel with stunnel, and also I've already got conected via command line with amazon servers, then in my postfix main.cf ...